We send your job to ALL Becontree Heath extension builders
Available extension builders in Becontree Heath reply
Select your affordable Becontree Heath extension builder
Sean Smithers
Our building services company SDS Constructions has been established for many years and have been providing customers in Dagenham and the surroundi...
Vasile Boghean
Optimus Build Solutions delivers exceptional construction services in London and surronding areas. Specializing in bathroom and kitchen refurbishme...
From £86,880
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...
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...
Experienced extension builder ready to quote for your work. Render is the best extension builder in Becontree Heath. No obligation free quotes and ...
Need an Extension Builder in Becontree Heath? Tony Rutter has been helping local clients (10 mile radius) with their extension buildering jobs for ...
Decorating Building Service are here to help customers who need an Extension Builder in Becontree Heath. We offer a competitive rate to complete al...
Relax... you have found a reliable extension builder in Becontree Heath. Sevcan Construction is a friendly and reliable company based in Becontree ...
Kunshi Services UK Ltd is a trusted extension builder serving customers in Becontree Heath and the surrounding area. Contact us to today to get a c...

Building a granny annexe ranges from £86,880 (Can design and Construction based in Ig11) to £88,232 (Optimus Build Solutions based in Rm1), but these are just estimates that can help give you an idea of who will be better value in your area.
The best thing to do is to get quotes to build a granny annexe in Becontree Heath by posting a job with HaMuch. We will send it to extension builders in Becontree Heath who will be happy to help you.
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 - £17,858

Two storey extension - £88,536

Build a timber frame extension - £26,358

Build a swimming pool - £81,358

Single storey extension - £62,152

Side return extension - £45,523

Install an RSJ - £2,558

Outbuilding - £10,358

Build a Mansard loft conversion - £52,358

Loft conversion - £37,103

Build a kitchen extension - £42,358

Hip to gable loft conversion - £42,358

Granny annexe - £87,358

Garden office - £10,358

Convert a Garage - £16,358

Garage - £18,858

Build a flat roof extension - £22,358

Build a dormer loft conversion - £42,358

Concrete foundations - £6,608

Convert a bungalow loft - £29,358

Convert a basement - £41,523