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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 £41,880
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...
Relax... you have found a reliable extension builder in Seven Kings. Major Building Contractors Ltd is a friendly and reliable company based in Sev...
Decorating Building Service are here to help customers who need an Extension Builder in Seven Kings. We offer a competitive rate to complete all yo...
Need to find an Extension Builder near you for all your extension buildering work?
Sz Builders provides a local, trusted extension builderi...
Experienced extension builder ready to quote for your work. Render is the best extension builder in Seven Kings. No obligation free quotes and many...
From £42,176
MIHAI Martolea
Member since September 2026
Fedora and sons Ltd is a trusted extension builder serving customers in Seven Kings and the surrounding area. Contact us to today to get a competit...
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
Need an Extension Builder in Seven Kings? Tony Rutter has been helping local clients (10 mile radius) with their extension buildering jobs for many...

Hip to gable loft conversions range from the cheapest of £41,880 (Can design and Construction based in Ig11) to the dearest of £42,712 (Render based in IG1).
Comparing extension builders estimates for converting a hip to gable roof 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 do a hip to gable loft conversion in Seven Kings by posting a job with HaMuch and we will send it to extension builders in Seven Kings.
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 - £17,730

Two storey extension - £88,344

Build a timber frame extension - £26,230

Build a swimming pool - £81,230

Single storey extension - £59,592

Side return extension - £44,083

Install an RSJ - £2,430

Outbuilding - £10,230

Build a Mansard loft conversion - £52,230

Loft conversion - £35,903

Build a kitchen extension - £42,230

Hip to gable loft conversion - £42,230

Granny annexe - £87,230

Garden office - £10,230

Convert a Garage - £16,230

Garage - £18,730

Build a flat roof extension - £22,230

Build a dormer loft conversion - £42,230

Concrete foundations - £6,480

Convert a bungalow loft - £29,230

Convert a basement - £40,083