We send your job to ALL IG1 extension builders
Available extension builders in IG1 reply
Select your affordable IG1 extension builder
From £9,880
Erald Kanani
Member since August 2025
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
Experienced extension builder ready to quote for your work. Render is the best extension builder in IG1. No obligation free quotes and many happy c...
Decorating Building Service are here to help customers who need an Extension Builder in IG1. We offer a competitive rate to complete all your exten...
From £10,176
MIHAI Martolea
Member since September 2026
Fedora and sons Ltd is a trusted extension builder serving customers in IG1 and the surrounding area. Contact us to today to get a competitive quot...
Ilford, IG1
M & S Builders is a trusted extension builder serving customers in IG1 and the surrounding area. Contact us to today to get a competitive quote for...
B J CULLEN BUILDERS are here to help customers who need an Extension Builder in IG1. We offer a competitive rate to complete all your extension bui...
Relax... you have found a reliable extension builder in IG1. Major Building Contractors Ltd is a friendly and reliable company based in IG1 who con...
Need to find an Extension Builder near you for all your extension buildering work?
Sz Builders provides a local, trusted extension builderi...
Ilford, IG1
Experienced extension builder ready to quote for your work. Jhon is the best extension builder in IG1. No obligation free quotes and many happy cus...
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...

Outbuilding costs in IG1 range from the cheapest of £9,880 (Can design and Construction based in Ig11) to the dearest of £10,712 (Render based in IG1), but these are just estimates.
Comparing extension builders estimates for building an outbuilding gives you an idea of who will be better value, but the best way to compare costs is to get actual quotes.
Get rates and quotes to build an outbuilding in IG1 by posting a job with HaMuch and we will send it to extension builders.
"Outbuilding" - IG5, job posted 01/01/70
| Borough in London |
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| Outbuilding in Ilford |
| Outbuilding in Manor Park |
| Outbuilding in Gants Hill |
| Outbuilding in Seven Kings |
| Outbuilding in Olympic Park |
| Outbuilding in Redbridge |
| Outbuilding in Barking |
| Outbuilding in Clayhill |
| Outbuilding in Forest Gate |
| Outbuilding in East Ham |
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 - £17,626

Two storey extension - £88,190

Build a timber frame extension - £26,126

Build a swimming pool - £81,126

Single storey extension - £57,528

Side return extension - £42,922

Install an RSJ - £2,326

Outbuilding - £10,126

Build a Mansard loft conversion - £52,126

Loft conversion - £34,935

Build a kitchen extension - £42,126

Hip to gable loft conversion - £42,126

Granny annexe - £87,126

Garden office - £10,126

Convert a Garage - £16,126

Garage - £18,626

Build a flat roof extension - £22,126

Build a dormer loft conversion - £42,126

Concrete foundations - £6,376

Convert a bungalow loft - £29,126

Convert a basement - £38,922