Top 10 Hyva Theme Development Companies in India (2026)

Finding the right Hyva theme development companies in India is harder than it should be. You already know Hyva is the fastest-growing Magento frontend framework — the real problem is that every agency now claims to specialize in it.

A quick Google search returns dozens of near-identical service pages, zero verified case studies, and vague promises about Core Web Vitals scores. Meanwhile, your Magento 2 store is still loading like a 2016 website and bleeding conversions with every passing month.

This post cuts through that noise. We researched, vetted, and ranked the ten best Hyva theme development companies operating in India right now — based on technical depth, client outcomes, pricing transparency, and real-world project track records. Whether you are a mid-market D2C brand, a Magento agency looking to white-label development, or an enterprise finally migrating away from Luma, this list will save you weeks of wasted discovery calls and bad proposals.

What is HYVA Theme Development?

Hyva is a modern frontend theme for Magento 2, built by developer Willem Wigman as a direct answer to the performance and complexity failures of the default Luma theme and Magento’s PWA Studio. Instead of the bloated RequireJS and KnockoutJS stack that ships with Luma, Hyva is built on Alpine.js and Tailwind CSS — a dramatically lighter combination that consistently produces Google Lighthouse scores between 90 and 100.

Hyva theme development refers to the process of building, customising, or migrating a Magento 2 storefront to the Hyva frontend framework. This includes porting third-party extensions to Hyva compatibility, building custom UI components with Alpine.js, implementing Hyva-native checkout flows, and optimising the full performance pipeline from server response to paint.

For merchants who are tired of slow Luma builds and the developer complexity of PWA Studio, Hyva has become the most pragmatic, performance-first Magento frontend available today. If your team is evaluating options, our Hyva theme development services page covers our full approach, case studies, and engagement models in detail. 

Top 10 HYVA Theme Development Companies in India (2026)

1. MagentoIndia — Best Overall Hyva Development Partner in India

   When evaluating Hyva theme development companies in India, MagentoIndia stands apart for one reason most agencies avoid discussing: they do not treat Hyva as a checkbox service. The team has been building on the Hyva framework since its early community releases, and every client engagement starts with a performance audit and extension compatibility assessment — not a templated proposal.

   Their workflow is structured around three outcomes that actually matter: Lighthouse score improvement, conversion rate uplift, and extension compatibility resolution. These are the three areas where most Hyva migrations either succeed dramatically or fail quietly. What separates MagentoIndia from the field is their in-house library of pre-built Hyva-compatible components — navigation systems, layered navigation filters, mini-cart implementations, and multi-step checkout flows — that accelerate timelines without sacrificing custom design fidelity.

   They operate across D2C, B2B Magento, and marketplace verticals. International clients from the UK, United States, and Australia represent a significant portion of their active project portfolio, which means the team has established timezone overlap protocols, written communication standards, and documentation processes that international procurement and legal teams actually accept without pushback.

   Every project is delivered with full code documentation, a post-launch performance report, and a 30-day hypercare period. There are no junior developers assigned to senior projects. The team that scopes the work is the team that builds it.

• Core Strength: Performance-obsessed Hyva builds with documented, handover-ready code and measurable outcome guarantees.
• Best For: Mid-market D2C brands, enterprise Magento merchants migrating from Luma, and Magento agencies white-labelling Hyva development capacity.
• Budget Tier: Mid to premium. Typically $3,000 to $30,000 or more depending on project scope and extension complexity.
• Key Clients: Available on request under NDA. Portfolio includes fashion, electronics, health and wellness, and FMCG verticals across three continents.

Clutch Rating:  4.9 out of 5

2.  Codilar Technologies — Hyva Plus PWA Specialists

Codilar is one of the most technically credible Magento agencies in India, and their Hyva offering reflects that foundation clearly. Based in Bangalore, Codilar has operated as a recognised Magento solution partner for several years and began deep investment in Hyva as the framework’s ecosystem matured through 2022 and 2023. Several of their developers have contributed to community Hyva modules and the team regularly publishes substantive technical content around the framework — a sign of genuine depth rather than surface-level familiarity.

Where Codilar differentiates most clearly is in complex performance architecture. They are particularly capable when a project requires Hyva alongside Elasticsearch integration, Varnish cache tuning, or custom checkout flows with intricate business logic baked in. Their pricing sits at the higher end of the India market, which reflects genuine seniority in the team rather than inflated margins.

The agency has delivered projects for merchants in Europe and North America, making them a credible option for international clients who want India-based development rates with global delivery standards applied consistently.

• Core Strength: Deep Magento plus Hyva architecture expertise, especially for large stores with complex infrastructure requirements.
• Best For: Large Magento merchants with complex catalogues, high traffic volumes, and serious performance requirements.
• Budget Tier: Premium. Typically $8,000 to $50,000 or more.
• Key Clients: Publicly referenced on the Codilar website.

Clutch Rating: 4.9 out of 5 — verified at time of writing. 

3.  MageSolution — White-Label Hyva Customisation

MageSolution has built a focused and genuinely valuable niche as the agency behind the agency. A significant portion of their active Hyva work is delivered as white-label development for European and Australian Magento partners who need India-based development capacity without the overhead of building a managed remote team. Their Hyva customisation output is clean, well-documented, and engineered to be handed back to the commissioning agency without requiring rework or explanation.

For direct clients, MageSolution handles Hyva theme customisation, bespoke component builds, and extension porting to Hyva compatibility. It is important to be honest about what they are and what they are not. MageSolution is not a full-strategy partner. They are a disciplined execution shop, and a very good one. If you arrive with clearly defined requirements and want reliable delivery, they belong on your shortlist.

• Core Strength: Reliable Hyva execution with white-label-grade documentation standards and clean handover processes.
• Best For: Magento agencies needing white-label Hyva sub-contracting and merchants arriving with well-defined technical specifications.
• Budget Tier: Mid-range. Typically $2,500 to $15,000.
• Key Clients: Mostly undisclosed by nature of white-label relationships.

Clutch Rating: 4.8 out of 5 — verified at time of writing.

4. Webkul Software — Multi-Vendor Marketplace Plus Hyva Builds

Webkul is a Jaipur-based Magento company with a genuinely unique position in the market. They have built one of the most widely used Magento multi-vendor marketplace extensions in existence, and they have invested heavily in making that entire ecosystem Hyva-compatible. If you are building a marketplace on Magento 2 and want a Hyva frontend, Webkul is arguably the most qualified company in the world for that specific combination — because no other agency owns both the marketplace infrastructure and the Hyva frontend expertise simultaneously.

Outside of marketplace builds, Webkul’s Hyva work is competent but not exceptional. Their custom design capabilities are functional rather than visually distinctive, and their project management process can feel bureaucratic for smaller, faster-moving clients. 

But for a multi-vendor Hyva project, their proprietary extension stack alone saves months of custom development time and significantly reduces long-term maintenance risk.

• Core Strength: Hyva-compatible multi-vendor marketplace builds leveraging their own proven, battle-tested extension stack.
• Best For: Marketplace operators building on Magento 2 with Hyva as the frontend framework.
• Budget Tier: Mid to premium — varies significantly based on extension licensing requirements and customisation depth.
• Key Clients: Global marketplace operators across fashion, electronics, and services verticals.

Clutch Rating: 4.7 out of 5 — verified at time of writing. 

5. Wagento Commerce — Luma-to-Hyva Migration Specialists

Wagento operates as a US-headquartered commerce agency with India-based development capacity, which gives them an interesting commercial positioning: US-grade client management paired with India-grade development economics. 

Their Hyva work concentrates heavily on Luma migration projects — merchants who have been running Luma-based storefronts for years and need a performance-first frontend upgrade without undergoing a full platform migration.

What makes Wagento distinctively valuable is their CRO-oriented approach to Hyva migrations. They do not simply rebuild the same user experience in a faster framework. They audit the conversion funnel first, identify where the current Luma storefront is losing customers, and build the Hyva theme with those improvements engineered in from the start. For merchants whose primary goal is revenue lift rather than Lighthouse scores, that approach produces materially better outcomes.

• Core Strength: Conversion-rate-integrated Luma-to-Hyva migrations with US-standard client management throughout.
• Best For: US and UK merchants who want India development rates without sacrificing Western account management standards.
• Budget Tier: Premium. Typically $10,000 to $60,000 or more.
• Key Clients: Several mid-market US e-commerce brands disclosed on the Wagento website.

Clutch Rating: 4.8 out of 5 — verified at time of writing.

6. Emizentech — Budget-Friendly Hyva Starter Builds

Emizentech is a Jaipur-based development company that has built a consistent reputation in the startup and small-business segment of the Magento market. Their Hyva work is primarily template-based and extension-driven rather than heavily bespoke. They are not engineering custom Hyva solutions from the ground up, but they are delivering clean, functional Hyva storefronts at price points that smaller merchants can realistically afford and justify.

Be clear-eyed about the value exchange here. Emizentech’s competitive advantage is execution speed and cost efficiency, not technical innovation or deep framework expertise. For a merchant who needs a Hyva-based storefront with standard catalogue browsing, standard checkout, and a reasonable launch timeline, Emizentech delivers dependable value for money. For complex enterprise requirements or bespoke Alpine.js development, they are not the right partner and they are generally honest about that.

• Core Strength: Fast, affordable Hyva theme setup and configuration for standard Magento storefronts.
• Best For: Small businesses, bootstrapped D2C brands, and early-stage startups operating on Magento with limited development budgets.
• Budget Tier: Entry-level. Typically $800 to $4,000.
• Key Clients: Primarily SMB clients across India, the United States, and the United Kingdom.

Clutch Rating: 4.6 out of 5 — verified at time of writing.

7. Magecomp — Hyva Extension Development and Module Porting

Magecomp has carved out a specific and commercially valuable niche in the Hyva ecosystem: they build Magento extensions that ship with Hyva compatibility as a first-class feature rather than an afterthought. For Magento developers and agencies, this matters enormously in practice. One of the most time-consuming and technically demanding aspects of any Hyva adoption project is porting existing Magento extensions — which were built for Luma’s RequireJS and KnockoutJS stack — to the Alpine.js architecture that Hyva requires.

Magecomp maintains a library of Magento modules available in Hyva-compatible versions, and their custom development team can port a third-party extension to Hyva compatibility in a fraction of the time it would take a generalist Magento developer encountering the problem for the first time. If your Hyva project timeline is being blocked by an extension incompatibility issue, Magecomp is one of the most efficient calls you can make.

• Core Strength: Hyva-compatible Magento extension development and rapid, experienced third-party module porting.
• Best For: Magento developers, agencies, and merchants with extension compatibility blockers on a Hyva project.
• Budget Tier: Entry to mid. Typically $500 to $5,000 depending on module complexity and customisation requirements.
• Key Clients: Primarily developer and agency customers sourced globally through extension marketplaces.

Clutch Rating: 4.7 out of 5 — verified at time of writing.

8. Atwix — Performance-First Hyva Engineering

Atwix was founded in Ukraine but operates with significant India-based delivery capability, and their Hyva work is among the most technically rigorous represented on this entire list. Their engineering team writes publicly about Hyva development — covering Alpine.js architectural patterns, TailwindCSS optimisation within the Hyva build pipeline, and real-world performance benchmarking across production storefronts. That level of technical transparency is rare in agency marketing and it signals genuine depth rather than borrowed expertise.

Atwix projects trend toward the enterprise end of the market, and their delivery process is thorough to the point of being deliberately unhurried. They will not take a shortcut that introduces technical debt six months post-launch. 

For merchants who have already been burned by fast-but-fragile Hyva builds that looked good on launch day and degraded over time, Atwix’s disciplined approach is worth the premium they command.

• Core Strength: Deep Alpine.js and TailwindCSS expertise within the Hyva framework combined with genuine technical transparency.
• Best For: Technically demanding enterprise migrations where long-term code quality is a non-negotiable requirement.
• Budget Tier: Premium. Typically $10,000 to $80,000 or more depending on migration scope.
• Key Clients: Enterprise Magento merchants across Europe and North America.

Clutch Rating: 4.9 out of 5 — verified at time of writing. 

9. Ibnz Technologies — Hyva Plus Headless Hybrid Builds

Ibnz Technologies occupies a genuinely differentiated position in the India Hyva market: they are among the very few agencies actively building hybrid Hyva plus headless storefronts. Their approach uses Hyva as the primary storefront frontend while implementing headless API layers for specific additional channels — mobile applications, voice commerce integrations, B2B portals, or progressive web app wrappers. It is a technically sophisticated architecture, but it is increasingly the pattern that strategically advanced Magento operators want to move toward.

For a merchant who has outgrown what a standard Hyva build can deliver but is not prepared to commit the budget and timeline risk of a full headless replatform, Ibnz offers a pragmatic and technically coherent middle path. Their team demonstrates genuine competency in Magento’s GraphQL API layer, which is the foundation on which their hybrid approach depends.

• Core Strength: API-first Hyva builds and hybrid Hyva plus headless architectures for multi-channel commerce.
• Best For: Magento merchants exploring headless capabilities without abandoning their existing Magento infrastructure investment.
• Budget Tier: Mid to premium. Typically $5,000 to $25,000.
• Key Clients: Available on request.

Clutch Rating: 4.6 out of 5 — verified at time of writing.

10. CartCoders — Entry-Level Hyva Theme Installation and Setup

CartCoders closes this list as the most accessible entry point for merchants who are new to Hyva and working within tight budget constraints. Their service offering is concentrated on Hyva theme installation, basic visual customisation, and starter-level store setup. They are not engineering complex custom Hyva components or porting large extension libraries, but they are competent at getting a clean Hyva storefront live quickly and without drama.

CartCoders is notably honest about their market positioning, which reflects well on them. They offer packaged Hyva setup services at clearly communicated fixed price points, making them easy to evaluate and straightforward to budget for. If your scope is clearly defined, your requirements are standard, and speed to launch matters more than bespoke development, CartCoders will deliver reliably. If your project requires deep customisation, complex Alpine.js development, or significant extension porting, choose a higher-tier partner from earlier in this list.

• Core Strength: Fast, low-cost Hyva theme installation and basic setup for standard Magento storefronts.
• Best For: Budget-constrained merchants who need a clean Hyva installation with minimal customisation.
• Budget Tier: Entry-level. Typically $400 to $2,500.
• Key Clients: SMB merchants globally.

Clutch Rating: 4.5 out of 5 — verified at time of writing.

How to Choose the Right HYVA Development Partner in 2026

The biggest mistake merchants make when evaluating Hyva theme development companies in India is approaching the decision as though it were a commodity purchase. It is emphatically not. Hyva is a technically specific framework, and the quality gap between a developer who genuinely understands Alpine.js reactive data binding and TailwindCSS utility purging versus one who learned Hyva last quarter from tutorial videos is enormous. That gap does not show up in the proposal. It becomes visible in your Core Web Vitals score three months after launch. The impact also appears in support tickets when a third-party extension breaks the cart. Over time, the technical debt passed to your internal team becomes difficult to maintain.

Here is a practical framework for making the right decision.

1 — Demand a Portfolio of Live Hyva Stores, Not Screenshots or Case Study PDFs

Any Hyva agency worth hiring should be able to direct you to live, publicly accessible Hyva-built storefronts they have delivered in the last eighteen months. Do not accept screenshots. Do not accept PDF case studies alone. Get the URLs, open them on your phone, and run them through Google PageSpeed Insights — pagespeed.web.dev — yourself. It takes ninety seconds per URL.

A competently built Hyva store should score consistently between 85 and 98 on mobile performance in PageSpeed Insights. If the stores an agency claims to have built are scoring 55 to 70 on mobile, that number tells you everything you need to know about the gap between their marketing claims and their actual technical delivery. Walk away and do not look back.

Also ask one specific follow-up question: did your team build this storefront from scratch in Hyva, or did you install a Hyva starter theme and apply visual customisation? Both approaches are legitimate, but they represent dramatically different levels of framework expertise. Custom builds from scratch require far deeper Alpine.js knowledge than customising an existing Hyva starter. Know which one you are actually paying for.

2 — Test Their Alpine.js and TailwindCSS Knowledge Directly Before Signing Anything

Hyva’s frontend is powered entirely by Alpine.js for interactivity and TailwindCSS for visual styling. There is no RequireJS, no KnockoutJS, and no jQuery involved in a properly built Hyva theme. If you are evaluating an agency as a non-technical buyer, invest fifty to one hundred dollars in a one-hour technical review by a freelance senior developer. Have them join your discovery call with the agency and ask three direct technical questions.

Ask candidates to explain how Alpine.js x-data and x-init directives function within a Hyva product page. Also, discuss their approach to CSS class purging in TailwindCSS within the Hyva build pipeline to keep stylesheet sizes optimized. Finally, ask how they diagnose and resolve third-party Magento extensions that rely on KnockoutJS and are not compatible with Hyva out of the box.

Genuine expertise produces specific, technically confident, and immediately useful answers. Shallow familiarity produces vague, hedged, or redirect-heavy responses. This single investment of one hour will eliminate the wrong agencies from your shortlist more effectively than any RFP process. Our Hyva theme development services page includes a technical vetting framework you can use directly before shortlisting.

3 — Assess Extension Compatibility Depth Before You Accept Any Timeline or Budget Quote

The average mid-size Magento 2 store runs between ten and thirty third-party extensions. The overwhelming majority of these extensions were built for the Luma JavaScript stack and are not Hyva-compatible without porting work. Porting a moderately complex extension from the KnockoutJS and RequireJS architecture to Alpine.js typically takes four to sixteen hours of senior developer time per extension, depending on how deeply the extension modifies frontend templates and JavaScript behaviour.

This means that an agency quoting you a budget and timeline without first auditing your extension stack is quoting you an incomplete number. The extension porting work is frequently the largest single cost variable in a Hyva migration project — and it is consistently the one that agencies underestimate in initial proposals, either out of genuine inexperience or deliberate optimism to win the contract.

Ask every prospective agency the same questions. How many extensions do you typically port per project? What is your average porting time per extension? Do you maintain a library of pre-ported extensions that reduces that time? Do you have Hyva-compatible replacements for common extensions in your toolset? The answers will separate experienced teams from everyone else immediately.

4 — Evaluate Communication Standards and Remote Collaboration Processes Specifically

India-based development agencies vary enormously in how well they manage client relationships with international buyers. Before committing to any engagement, request a sample project plan, a sample weekly status report format, and two references from international clients — specifically clients in the US, UK, or Australia who can speak to async communication quality and project management reliability.

Agencies that have delivered strong outcomes for international clients will respond to this request without hesitation. Agencies with limited international experience will deflect, offer India-based references instead, or produce documentation that clearly has not been used in practice.

For merchants who want a reliable India-based Hyva development partner with documented processes, transparent pricing, and genuine international delivery experience, our dedicated Magento development model offers a structured and accountable alternative to the project-based approach that most agencies default to.

CONCLUSION

Choosing from the top Hyva theme development companies in India in 2026 is not about finding the lowest hourly rate or the agency with the most persuasive service page. It is about finding a team that has demonstrated genuine technical depth in the Hyva framework, has a portfolio of live stores that actually score well in performance testing, and communicates clearly enough to be a reliable partner through a multi-week migration project with real commercial stakes.

Use this list as a starting point, not a shortcut. Run the technical checks described in the how-to-choose section. Ask for live portfolio URLs and test them yourself. Talk to references. The twenty minutes you invest in due diligence before signing will save you months of remediation work after a wrong hire.

If you are ready to discuss your Hyva migration specifically, our team offers a free 30-minute technical consultation — no sales pitch, just an honest assessment of what your project involves, how long it will take, and what it will realistically cost. Book your free Hyva consultation here.

FAQ About HYVA Theme Development in India

How much does Hyva theme development cost in India?

Hyva theme development costs in India typically range from $800 to $50,000 or more, depending on the project scope, the seniority of the team, and the complexity of your existing Magento extension stack.

An entry-level Hyva installation with basic visual customisation from a budget agency will land between $800 and $2,500. A mid-tier custom Hyva build with bespoke component development and five to ten extension ports will typically cost between $5,000 and $15,000. A full enterprise Hyva migration involving complex checkout architecture, custom business logic, and extensive regression testing can run $20,000 to $50,000 or significantly beyond.

The most common and damaging pricing mistake merchants make is scoping only the theme build and ignoring extension compatibility work entirely. In most established Magento stores, porting or replacing Luma-incompatible extensions adds thirty to fifty percent to the total project cost. Any agency providing a fixed quote without first auditing your extension stack is giving you an incomplete and likely misleading number.

As a practical reference across tiers: entry-level work covers template-based builds with minimal customisation and sits between $400 and $2,500. Mid-range work covers custom component builds and moderate extension porting between $2,500 and $10,000. Premium work covering enterprise migrations and complex architecture sits between $10,000 and $50,000 or more.

How do I verify a Hyva development company’s actual experience?

The most reliable verification method combines direct technical interrogation with independent portfolio testing, and it costs almost nothing but twenty minutes of your time.

Start by requesting the URLs of at least three live Hyva stores the agency has delivered in the last eighteen months. Run every URL through Google PageSpeed Insights on mobile. A properly built Hyva store should score between 85 and 98 on mobile performance. Scores consistently below 75 are a serious technical red flag that should end the conversation.

Next, ask the agency to share a code sample of a custom Alpine.js component they built for a client project. You do not need to personally evaluate the code — a developer colleague or a brief paid review by a senior freelancer can assess it quickly. Well-written Hyva code is modular, clearly commented, and does not rely on jQuery or KnockoutJS patterns that belong to the Luma era.

Finally, check the agency’s presence within the Hyva community itself. Do team members participate in the official Hyva Slack workspace? Have they contributed to the Hyva GitHub repository or published Hyva-compatible extensions? Have they written technical blog content about Hyva specifically rather than Magento in general? Teams genuinely embedded in the Hyva ecosystem are almost always more capable and more current than those treating it as just another technology type on a service page.

What is the difference between Hyva and Magento PWA Studio?

Both Hyva and PWA Studio are modern Magento 2 frontend frameworks, but they represent fundamentally different philosophies about how a Magento storefront should be architected.

PWA Studio — now also referred to as Adobe Commerce Storefront — is a React-based headless progressive web app framework. It decouples the Magento frontend entirely from the PHP rendering layer, communicating exclusively through GraphQL APIs. It offers maximum frontend flexibility and genuine multi-channel potential, but it requires React expertise to develop and maintain, involves significant infrastructure complexity, and has historically produced inconsistent performance results due to large JavaScript bundle sizes.

Hyva takes a deliberately different position. It is a server-side rendered frontend that stays within the Magento stack but replaces Luma’s heavy JavaScript dependencies with the dramatically lighter Alpine.js and Tailwind CSS. 

The result is page load performance that is typically three to five times faster than Luma on mobile, substantially simpler development workflows, and a lower total cost of ownership throughout the project lifecycle. The trade-off is that Hyva is not a headless solution — it remains coupled to Magento’s PHP rendering layer and is therefore less suited to true multi-channel decoupled architectures.

For the vast majority of mid-market merchants in 2026, Hyva is the more practical and commercially sound choice: better measurable performance, significantly lower development cost, a larger and more accessible talent pool, and a more predictable implementation timeline. 

PWA Studio makes more strategic sense for enterprises that already have internal React teams, or for operations with genuine multi-channel requirements that demand a fully decoupled frontend architecture.

Can Indian Hyva development companies work effectively for international clients?

Yes, and the best ones do so routinely and successfully. India is one of the largest sources of qualified Magento development talent globally, and several of the agencies on this list derive the majority of their revenue from clients in the United States, United Kingdom, Europe, and Australia.

The practical considerations for international engagements involve four areas: timezone overlap, communication standards, legal and IP frameworks, and payment terms. India operates at UTC plus 5:30, which provides four to five morning hours of overlap with UK and European teams and three to four hours of overlap with US East Coast teams during their morning. For full-time dedicated developers, synchronous collaboration with Asia-Pacific clients is entirely feasible with no overlap compromises required.

When assessing any India-based agency for an international engagement, ask three direct questions before proceeding. What percentage of your current active clients are located outside India?

 Can you provide two references from international clients who can speak specifically to communication quality and project management? What does your NDA and IP assignment agreement look like for engagements where the client is incorporated outside India?

Agencies with strong international portfolios will answer all three questions specifically, confidently, and with supporting documentation ready. Agencies without genuine international experience will hedge, redirect, or produce documents that are clearly not used in practice.

How long does a typical Hyva migration take from a Luma-based store?

A well-scoped Luma-to-Hyva migration for a mid-size store — broadly defined as a catalogue up to 50,000 SKUs and ten to fifteen third-party extensions — typically takes eight to fourteen weeks from project kickoff to production deployment.

That timeline breaks down roughly as follows: one to two weeks for technical audit and scope finalisation, two to three weeks for theme development and design implementation, three to five weeks for extension porting and compatibility resolution, one to two weeks for quality assurance and performance testing, and one week for staged rollout with post-launch monitoring in place.

Timelines extend substantially when a store has heavily customised checkout flows with complex business logic, significantly modified Magento core files that require careful migration, or a large library of obscure third-party extensions that have no available Hyva-compatible alternative and require full custom porting from scratch.

The single largest and least predictable timeline variable in any Hyva migration is always extension compatibility work — and any experienced agency will tell you that upfront clearly, not explain it midway through the project when timelines have already slipped.