Extensions.
Single and double storey extensions, side returns, wrap-arounds, orangeries and garage conversions. We match you with one vetted UK builder who works to approved drawings, keeps building control on side and delivers space that looks like it was always part of the house.
What we cover
Every type of extension project.
Single storey rear
Open-plan kitchen and living extensions with bifold or sliding doors, roof lanterns and level thresholds into the garden.
Double storey
Two storey extensions that add both living space downstairs and a bedroom or bathroom above, built to match your existing brickwork.
Side returns and wrap-arounds
Infilling the side alley on a Victorian or Edwardian home to create a wide, bright kitchen and dining space.
Orangeries and garden rooms
Glazed extensions with insulated roofs that stay usable through winter, not conservatories that overheat in summer.
Garage conversions
Converting an attached garage into a habitable room with proper insulation, floor build-up, damp proofing and heating.
Structural openings
Steel beams and knock-throughs with calculations from a structural engineer and building control sign-off.
How it works
Three simple steps.
- Step 01
Tell us about the space you need
Share your rough footprint, what the new space is for and your budget range. Drawings help but are not required.
- Step 02
We appoint the right builder
We match one vetted extension builder suited to your postcode, project size and timeline. No bidding war, no chasing.
- Step 03
Start with confidence
Review your itemised quote, agree the build programme, then begin. Every project sits behind our workmanship guarantee of up to £1,000.
What is included
Every match comes with these standards.
Included
Written, itemised quotes
Groundworks, structure, roofing, glazing, first and second fix, finishes and VAT priced separately so nothing is hidden.
Included
Regulations handled
Your builder works to approved drawings and arranges building control inspections through to final sign-off.
Included
Workmanship guarantee
Twelve-month workmanship guarantee of up to £1,000 on every extension project matched through TradeTrust.
FAQ
Extension questions, answered.
How much does an extension cost in the UK?+
A single storey rear extension typically runs £2,000 to £3,000 per square metre depending on specification and region, with double storey work often costing less per square metre. Your written quote sets out the exact figure for your property.
How long does an extension take to build?+
A standard single storey extension usually takes eight to fourteen weeks on site. Double storey and wrap-around projects generally run four to six months, including groundworks and finishes.
Do I need planning permission?+
Many rear extensions fall under permitted development, but size, height and boundary distances all matter. Your builder will confirm whether a full application, prior approval or permitted development applies before work begins.
Can we stay in the house during the build?+
Most homeowners do. Your builder will agree how access, dust protection and any temporary kitchen arrangements are handled before the first day on site.
Ready to start
Get your free quote today.
Tell us about your project. We will match you with vetted contractors within 48 hours.