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Sean Smithers
Our building services company SDS Constructions has been established for many years and have been providing customers in Dagenham and the surroundi...
From £6,130
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 Ilford. No obligation free quotes and many happ...
Decorating Building Service are here to help customers who need an Extension Builder in Ilford. We offer a competitive rate to complete all your ex...
Kunshi Services UK Ltd is a trusted extension builder serving customers in Ilford and the surrounding area. Contact us to today to get a competitiv...
From £6,426
MIHAI Martolea
Member since September 2026
Ilford, IG1
Fedora and sons Ltd is a trusted extension builder serving customers in Ilford and the surrounding area. Contact us to today to get a competitive q...
Catalin CIOBANU
Experienced extension builder ready to quote for your work. CC&D BUILDING LTD is the best extension builder in Ilford. No obligation free quotes an...
Shaik Jamal
Welcome to RTC Plumbers! With over 15 years of experience, we offer a range of plumbing services from simple repairs to complex installations, each...
Need to find an Extension Builder near you for all your extension buildering work?
ESK Builders provides a local, trusted extension builder...
Need an Extension Builder in Ilford? MD Building & Project Management Ltd has been helping local clients (10 mile radius) with their extension buil...

Concrete foundations range from the £5,666 (RTC Plumbers based in RM6) to £6,962 (Render based in IG1) in Ilford.
Comparing extension builders estimates for laying concrete foundations gives you an idea of who will be better value, but the best way to compare costs is to get actual quotes.
Find out the exact cost of laying concrete foundations in Ilford by posting a job with HaMuch. We will send it to extension builders who can give you a detailed quote.
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 - £17,674

Two storey extension - £88,262

Build a timber frame extension - £26,174

Build a swimming pool - £81,174

Single storey extension - £58,488

Side return extension - £43,462

Install an RSJ - £2,374

Outbuilding - £10,174

Build a Mansard loft conversion - £52,174

Loft conversion - £35,385

Build a kitchen extension - £42,174

Hip to gable loft conversion - £42,174

Granny annexe - £87,174

Garden office - £10,174

Convert a Garage - £16,174

Garage - £18,674

Build a flat roof extension - £22,174

Build a dormer loft conversion - £42,174

Concrete foundations - £6,424

Convert a bungalow loft - £29,174

Convert a basement - £39,462