From £17,844
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £17,684
Ilford, IG1
Need to find an Extension Builder near you for all your extension buildering work?
Sz Builders provides a local, trusted extension builderi...
From £17,788
We are Haze Construction ltd, a young construction firm with plenty of experience. Our team has over 35 years of experience in the construction ind...
From £17,924
Ilford Essex, IG1
A firm that believes in quality, doesn't cut on the key values that creates a ideal home or business. We take on all jobs working to your budget
From £17,588
Relax... you have found a reliable extension builder in Ilford. Gill Builders is a friendly and reliable company based in Ilford who consider no jo...
From £17,492
Ilford, IG1
Sky Property Group is a trusted extension builder serving customers in Ilford and the surrounding area. Contact us to today to get a competitive qu...
From £17,892
Red Knight Design & Build is a trusted extension builder serving customers in Ilford and the surrounding area. Contact us to today to get a competi...
From £17,476
Ilford Greater London, IG1
Relax... you have found a reliable extension builder in Ilford. Jstar Construction + SH Architects is a friendly and reliable company based in Ilfo...
From £17,396
Experienced extension builder ready to quote for your work. Jhon is the best extension builder in Ilford. No obligation free quotes and many happy ...
From £17,532
Ilford, IG1
M & S Builders is a trusted extension builder serving customers in Ilford and the surrounding area. Contact us to today to get a competitive quote ...

Underpinning ranges from £17,396 (Jhon based in IG1) to £17,924 (Essex Building Construction based in IG1), but the final cost will depend on the method of underpinning used, how much of your foundations need underpinning and where you live.
Comparing extension builders estimates for underpinning gives you an idea of who will be better value but the best way to compare costs is to get actual quotes.
Get quotes to underpin your home in Ilford by posting a job with HaMuch and we will send it to extension builders in Ilford.
Whether you’re looking to extend your kitchen with a side return extension or you want to convert your basement into a liveable space, read our cost guides to get an idea of how much each project costs before getting a more accurate quote from our database of reliable tradespeople.

Underpin a building - £17,662

Two storey extension - £88,242

Build a timber frame extension - £26,162

Build a swimming pool - £81,162

Single storey extension - £58,232

Side return extension - £43,318

Install an RSJ - £2,362

Outbuilding - £10,162

Build a Mansard loft conversion - £52,162

Loft conversion - £35,265

Build a kitchen extension - £42,162

Hip to gable loft conversion - £42,162

Granny annexe - £87,162

Garden office - £10,162

Convert a Garage - £16,162

Garage - £18,662

Build a flat roof extension - £22,162

Build a dormer loft conversion - £42,162

Concrete foundations - £6,412

Convert a bungalow loft - £29,162

Convert a basement - £39,318