Technical debt & framework upgrades

Product Modernization

We bring an older purchase up to current technical and design standards, without a full rebuild.

EngagementFixed-scope project
Typical timeline4–8 weeks
Starting at$8,000
TeamSenior engineer + security reviewer
Book a consultation See pricing model
Starting at

$8,000

Scoped to your specific engagement

  • Senior specialists, not generalists
  • Fixed scope agreed before work starts
  • Full documentation & handoff
Book a consultation Talk to a specialist

Overview

Products bought a few years ago can fall behind on framework versions, security patches, and design conventions. Product Modernization upgrades the codebase and refreshes the UI incrementally, so you're not stuck choosing between an outdated product and starting over.

Who this is for

  • Buyers of older listings falling behind on framework or security patches
  • Teams choosing between an outdated product and a costly rebuild
  • Companies wanting UI refreshed without touching core business logic

Who this isn't for

  • Recently purchased, already up-to-date products
  • Teams wanting a full rewrite rather than incremental modernization
  • Feature requests unrelated to technical debt (see Custom Development)

What to expect — typical ranges, not guarantees

4–8 wks

Typical modernization timeline

Security-first

Critical issues prioritized

Incremental

No full rebuild required

Fixed

Scoped per audit findings

Our approach

01

Audit

Assess the current codebase against modern framework, security, and design standards.

02

Prioritize

Sequence upgrades by risk and user impact, starting with security-critical items.

03

Upgrade

Modernize dependencies, refactor legacy patterns, and refresh key UI surfaces.

04

Validate

Full regression testing to confirm nothing breaks during modernization.

What's included

Technical debt and security audit
Upgraded dependencies and frameworks
Refreshed UI on key surfaces
Regression test results

Expertise & tooling

Who works on this

Senior Engineer (migrations)

Leads dependency upgrades and refactoring

Security Reviewer

Flags and prioritizes security-critical findings

UI/UX Designer

Refreshes key design surfaces

Tools & technology

Dependency upgrade & compatibility toolingSecurity & vulnerability scannersAutomated regression testingDesign refresh & component libraries

Engagement models

ModelScopeTimelinePrice
Fixed-scope audit + upgradePriced per audit findings4–8 weeks$8,000+
Ongoing modernization retainerContinuous upkeep after initial passMonthlyPairs with Product Engineering

Industries served

SaaSE-commerceInternal toolsMarketplaces

Example scenarios

Stack18's services practice is new — the scenarios below illustrate how an engagement like this typically plays out, not verified past-client results.

Illustrative scenario

Major framework upgrade

CRM platform buyer

Upgraded a multi-year-old CRM across several major framework versions with no customer-facing downtime.

Illustrative scenario

Legacy UI refresh

Forms/data collection product buyer

Modernized the UI of a legacy forms product, measurably improving user engagement.

Pricing model & timeline

Engagement

Fixed-scope project

Priced per audit scope

Starting at

$8,000

Audit plus priority modernization work

Timeline

4–8 weeks

Depending on codebase age and scope

Final pricing depends on scope confirmed during a consultation — the figures above reflect typical starting points, not a fixed quote.

FAQ

Will this require a full rebuild?

No, modernization is deliberately incremental — we upgrade and refactor in place rather than starting from scratch.

What if security issues are found during the audit?

Security-critical findings are flagged and prioritized first, regardless of the rest of the modernization scope.

Will this require a full rebuild?

No — modernization is deliberately incremental. We upgrade and refactor in place rather than starting from scratch.

What if security issues are found during the audit?

Security-critical findings are flagged and prioritized first, regardless of the rest of the modernization scope.

How do you avoid breaking existing functionality?

Full regression testing runs after every upgrade phase, with a defined rollback path if anything regresses.

Can you modernize just the UI without touching the backend?

Yes, UI-only refreshes are scoped separately from backend/framework upgrades if that's all you need.

Pairs well with

Let's scope your product modernization.

Book a free consultation — no commitment, just a clear plan and a real quote.

Book a free consultation