
Add space, value, and luxury to your property with our award-winning extension and conversion services. From concept to completion, we handle everything.
Whether you're building out, building up, or building down — we have the expertise to deliver exceptional results.

Single and double-storey rear extensions, side return extensions, and wraparound extensions that seamlessly blend with your existing property.

Dormer, hip-to-gable, and mansard loft conversions that maximise your roof space with stunning natural light and bespoke finishes.

Specialist basement conversions, underpinning, and subterranean extensions — unlocking premium living space beneath your property.
A seamless, stress-free journey from your first call to moving into your new space.
We visit your property, discuss your vision, and provide expert advice on the best approach for your project.
Our architects create detailed plans, handle planning applications, and ensure Building Regulations compliance.
Our skilled team executes the build with precision, keeping you updated at every stage with a dedicated project manager.
Final inspection, snagging, and handover of your transformed space — complete with all certifications and guarantees.






"PropFix built our rear extension and it completely transformed how we live. The open-plan kitchen-diner with bi-fold doors opening to the garden is everything we dreamed of."
Sarah & James Mitchell
Ilford, Essex — Full House Extension
Explore our full range of property transformation services.
Get a free, no-obligation quote for your project. Our team will visit your property, understand your vision, and deliver a detailed proposal within 48 hours.
Free consultation · No obligation · Response within 24 hours