From £45,370
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £43,570
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 £44,740
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 £46,270
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 £42,490
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 £41,410
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 £45,910
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 £41,230
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 £40,330
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 £41,860
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 ...

Comparing extension builders estimates for Side return extension gives you an idea of who will be better value but the best way to compare costs is to get actual quotes.
What to do - Get rates and quotes for a side return extention by posting your job to extension builders in Ilford.
"Side return extension" - REDBRIDGE, job posted 11/08/25
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