18+
Years PHP
Since 2007
Refactoring Expertise
85%
Test Coverage Target
Systematic Code Improvement
Proven Refactoring Methodology
Extract classes into focused, single-responsibility units
Apply proven design patterns to reduce complexity
Refactor code to be testable with dependency injection
Eliminate code duplication through shared abstractions
Use modern PHP 8 syntax and language features
Document architectural decisions and refactoring rationale
Legacy systems often contain God Objects where one class handles dozens of responsibilities, making them impossible to test or modify safely. Extracting focused classes following the Single Responsibility Principle transforms these monoliths into manageable, testable units. This refactoring pattern significantly reduces cognitive load, as developers no longer need to decipher thousands of lines within a single class. Well-factored code with clear boundaries leads to significantly fewer bugs in production.
Extract classes into focused, single-responsibility units
Apply proven design patterns to reduce complexity
Refactor code to be testable with dependency injection
Eliminate code duplication through shared abstractions
Use modern PHP 8 syntax and language features
Document architectural decisions and refactoring rationale
Our Refactoring Process
Safe, Incremental, Production-Ready
Analysis & Safety First
Analyse codebase to understand existing patterns, identify pain points, and map dependencies. Write characterisation tests to capture existing behaviour and build approval tests for complex logic. Establish full understanding and regression safety before making changes.
Incremental Extraction
Extract small, focused classes from large files. Introduce interfaces and abstractions gradually. Each refactoring ships independently to production, maintaining continuous delivery whilst improving code structure.
Continuous Validation
Automated test suite validates every change. Static analysis tools catch regressions early. Peer review ensures quality and knowledge sharing across the team, building collective code ownership.
Analysis & Safety First
Analyse codebase to understand existing patterns, identify pain points, and map dependencies. Write characterisation tests to capture existing behaviour and build approval tests for complex logic. Establish full understanding and regression safety before making changes.
Incremental Extraction
Extract small, focused classes from large files. Introduce interfaces and abstractions gradually. Each refactoring ships independently to production, maintaining continuous delivery whilst improving code structure.
Continuous Validation
Automated test suite validates every change. Static analysis tools catch regressions early. Peer review ensures quality and knowledge sharing across the team, building collective code ownership.
Business Impact of Clean Code
Measurable Improvements
Faster Feature Development
80% faster changes
Clean, well-structured code reduces the time needed to add new features. Developers spend less time deciphering legacy logic.
Fewer Production Bugs
10x deploy frequency
Testable code with clear boundaries reduces defect rates. Improved separation of concerns makes bugs easier to isolate and fix.
Easier Onboarding
2-week onboarding
New developers understand well-factored code faster. Clear abstractions and documented patterns reduce ramp-up time.
Reduced Technical Debt
50% debt reduction
Systematic refactoring pays down technical debt incrementally. Code quality metrics improve measurably over time.
Faster Feature Development
80% faster changes
Clean, well-structured code reduces the time needed to add new features. Developers spend less time deciphering legacy logic.
Fewer Production Bugs
10x deploy frequency
Testable code with clear boundaries reduces defect rates. Improved separation of concerns makes bugs easier to isolate and fix.
Easier Onboarding
2-week onboarding
New developers understand well-factored code faster. Clear abstractions and documented patterns reduce ramp-up time.
Reduced Technical Debt
50% debt reduction
Systematic refactoring pays down technical debt incrementally. Code quality metrics improve measurably over time.
Common Refactoring Patterns
Proven techniques we apply to legacy PHP codebases
Extract Class
Break large classes into focused units. Move related methods and properties into cohesive classes with single responsibilities.
Introduce Interface
Define contracts between components. Enable dependency inversion and make code testable through interface-based design.
Replace Conditionals
Transform complex if/switch statements into polymorphic class hierarchies. Use Strategy pattern for behaviour variation.
Repository Pattern
Isolate data access logic from business logic. Create clean boundaries for persistence concerns and enable easier testing.
Extract Service
Move business logic from controllers/models into dedicated service classes. Improve reusability and testability.
Value Objects
Replace primitive obsession with immutable value objects. Encapsulate validation and business rules within domain concepts.
Characterisation Tests
Capture existing behaviour in tests before refactoring. Build safety harness to prevent regressions during structural changes.
Incremental Delivery
Ship refactoring changes continuously to production. Avoid long-lived feature branches that become merge nightmares.
Extract Class
Break large classes into focused units. Move related methods and properties into cohesive classes with single responsibilities.
Introduce Interface
Define contracts between components. Enable dependency inversion and make code testable through interface-based design.
Replace Conditionals
Transform complex if/switch statements into polymorphic class hierarchies. Use Strategy pattern for behaviour variation.
Repository Pattern
Isolate data access logic from business logic. Create clean boundaries for persistence concerns and enable easier testing.
Extract Service
Move business logic from controllers/models into dedicated service classes. Improve reusability and testability.
Value Objects
Replace primitive obsession with immutable value objects. Encapsulate validation and business rules within domain concepts.
Characterisation Tests
Capture existing behaviour in tests before refactoring. Build safety harness to prevent regressions during structural changes.
Incremental Delivery
Ship refactoring changes continuously to production. Avoid long-lived feature branches that become merge nightmares.
When to Refactor Legacy Code
Strategic refactoring timing for maximum impact
Ready to eliminate your technical debt?
Transform unmaintainable legacy code into a clean, modern codebase that your team can confidently build upon.