House Extensions near you

Single and double storey extensions, design to finish. Find verified builders who specialise in house extensions, compare reviews and get free quotes.

Builders for house extensions

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Brighton Builders

Builder·Brighton

5.0(6 reviews)

Trusted local builders with 20 years experience. Fully insured.

6 reviewsView profile →

Ali Builders

Builder

What to check before hiring

FMB or TrustMark membership
Examples of completed projects
Structural and building control sign-off experience
A detailed written contract and payment schedule

Typical cost: £150–£300 per day per builder; extensions from £1,500–£2,500 per m².

Other builder services

Loft Conversions

Convert unused loft space into rooms.

Renovations

Full property refurbishments and remodels.

Garage Conversions

Turn a garage into usable living space.

Brickwork & Repointing

Brick laying, repairs and repointing.

Structural Work

Knock-throughs, steel beams and load-bearing changes.