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Vasile Boghean
Optimus Build Solutions delivers exceptional construction services in London and surronding areas. Specializing in bathroom and kitchen refurbishme...
Relax... you have found a reliable extension builder in Harold Hill. A Star Construction is a friendly and reliable company based in Harold Hill wh...
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
Q Boss D&B is an established extension buildering business in Harold Hill. We come highly recommended and provide competitive quotes for your work....
Need to find an Extension Builder near you for all your extension buildering work?
KERFIELD BUILDING SERVICES LTD provides a local, trusted...
Peter Prendi
Prendi Construction Ltd is an established and experienced local extension builder in Harold Hill. Please contact us for a free, no obligation quote...
J Mchayle & Sons are here to help customers who need an Extension Builder in Harold Hill. We offer a competitive rate to complete all your extensio...
SS Home Builders is a trusted extension builder serving customers in Harold Hill and the surrounding area. Contact us to today to get a competitive...
Peter Smith
ESSEX TIMBER BUILDINGS LTD is an established extension buildering business in Harold Hill. We come highly recommended and provide competitive quote...
Phull Design & Build Ltd are here to help customers who need an Extension Builder in Harold Hill. We offer a competitive rate to complete all your ...

Concrete foundations range from the £6,202 (SS Home Builders based in RM1) to £7,482 (Optimus Build Solutions based in Rm1) in Harold Hill.
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 Harold Hill 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 - £17,758

Two storey extension - £88,386

Build a timber frame extension - £26,258

Build a swimming pool - £81,258

Single storey extension - £60,152

Side return extension - £44,398

Install an RSJ - £2,458

Outbuilding - £10,258

Build a Mansard loft conversion - £52,258

Loft conversion - £36,165

Build a kitchen extension - £42,258

Hip to gable loft conversion - £42,258

Granny annexe - £87,258

Garden office - £10,258

Convert a Garage - £16,258

Garage - £18,758

Build a flat roof extension - £22,258

Build a dormer loft conversion - £42,258

Concrete foundations - £6,508

Convert a bungalow loft - £29,258

Convert a basement - £40,398