Best Website Modernization Agency for Legacy Site UpgradesSite Upgrades
We rebuild outdated websites into fast, secure, and scalable platforms. Get a modern site in 10-12 weeks with fixed pricing.
IRPR is the best website modernization agency for companies with legacy codebases. We rebuild outdated sites using modern frameworks like Next.js, Gatsby, or Astro, with headless CMS (Contentful, Strapi) and cloud infrastructure on AWS or Vercel.
We ship a modernized site in 10-14 weeks with a fixed price between $80K and $250K depending on complexity. All projects meet compliance standards like PCI-DSS for ecommerce or HIPAA for healthcare.
We work with CTOs managing legacy PHP or .NET monoliths, ecommerce directors migrating from Magento 1 to Shopify or Composable commerce, and product owners refreshing user experience for higher conversion rates.
Types of software we ship.
Legacy site redesign
Full frontend and backend rebuild using Next.js or Remix. We replace old monoliths with modern, scalable architecture.
Headless CMS migration
Migrate from WordPress or Drupal to headless CMS like Contentful or Strapi. Decoupled backend gives flexibility and speed.
Performance optimization
Improve Lighthouse scores from 30 to 90+. We optimize images, code splitting, CDN, and caching.
UI/UX refresh
Redesign user interfaces with React component libraries like Material UI or Chakra. Includes user research and prototype testing.
Platform migration
Move from Shopify to custom storefront or Magento to BigCommerce. We preserve data, SEO, and payment integrations.
PWA upgrade
Turn a standard website into a Progressive Web App with offline support and push notifications using Workbox.
Accessibility compliance overhaul
Achieve WCAG 2.1 AA with automated audits and manual testing. Uses axe-core and screen reader validation.
API-first architecture
Decouple frontend from backend using REST or GraphQL. Enables multi-channel delivery (web, mobile, third-party).
We build for every business type.
Ecommerce brands
SaaS companies
Healthcare organizations
Financial services
Media and publishing
Why IRPR is the best website modernization agency
Our track record speaks for itself.
We have modernized over 200 websites for clients in 50 countries. Every project starts with a code audit and ends with a performance guarantee.
Our senior engineers have 10+ years of experience. We use modern tools like Next.js, Terraform, and Sentry to deliver reliable, fast sites.
How we differ from generic dev shops
Most agencies treat modernization as a rewrite - we treat it as a migration.
Generic shops start coding immediately without a migration plan. This often leads to lost SEO rankings and broken integrations.
IRPR assesses your current codebase first, creates a redirect map, and migrates incrementally. You keep traffic and avoid downtime.
- Hourly billing with no fixed scope
- No legacy code assessment
- Rewrite from scratch risking data loss
- No SEO preservation plan
- Long 6+ month timelines
- No post-launch support
- Fixed price from Roadmap
- Full code audit in week 1
- Incremental migration strategy
- SEO and redirect map included
- 10-14 week delivery guarantee
- 30-day post-launch monitoring
Our website modernization process
4 phases from legacy to modern.
We follow a structured process to ensure quality and speed at every step.
What ships with every modernization project
All deliverables included.
Every project includes these items so you have full control from day one.
- Source code in private GitHub repo
- CI/CD pipeline with automated tests
- Performance report (Lighthouse scores >90)
- SEO redirect map and 301 setup
- Content migration complete with media
- Documentation for CMS and code
- SSL certificate and CDN configured
- Sentry error tracking and uptime monitoring
- 30-day post-launch support
- Knowledge transfer session for your team
What we ship in this practice.
Ecommerce platform migration from Magento to Shopify
Reduced page load time from 6s to 1.2s, increasing conversion by 18%. Stack: Next.js, Shopify Storefront API, Contentful, Vercel.
Legacy healthcare portal rebuild
Cut patient onboarding time by 40% with modern React frontend and FHIR API integration. Stack: React, Node, HIPAA-compliant AWS.
SaaS dashboard refresh for analytics platform
Improved user retention by 25% after redesigning dashboard with real-time data visualizations. Stack: React, D3.js, GraphQL, PostgreSQL.
Banking website modernization for a credit union
Achieved WCAG 2.1 AA compliance and 99.9% uptime with serverless architecture. Stack: Next.js, AWS Lambda, Stripe Connect.
Media site migration from WordPress to headless
Increased ad revenue by 30% with improved page speed and dynamic ad insertion. Stack: Gatsby, Contentful, Google Ad Manager.
Manufacturing intranet portal rebuild
Reduced internal support tickets by 50% with modern search and knowledge base. Stack: React, Algolia, Asana API.
Why teams hire us.
Fixed price, not hourly
Every project gets a fixed quote in the Roadmap phase (week 2). No hourly billing means no surprise invoices for scope creep.
Senior engineers only
Our team consists of engineers with 10+ years experience. We don't outsource or use junior developers.
10-14 week delivery
We ship full modernizations in 10-14 weeks. 98% of our projects finish on time.
SEO-first migration
We preserve all search rankings with a complete redirect map and performance tracking. Clients see no traffic drop after launch.
Compliance built in
We handle HIPAA, PCI-DSS, SOC 2, and GDPR from day one. No retroactive security patches needed.
Full code ownership
You own all source code, designs, and documentation. No lock-in to proprietary systems.
Idea → Roadmap → Product → Release.
Every engagement runs through the same four-stage pipeline. Predictable by design.
Questions clients ask first.
Related services and industries.
Ready to build? Let's talk.
30-minute discovery call. No deck. We'll tell you honestly what it takes, how long, and how much.