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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...
Vasile Boghean
Romford, RM1
Optimus Build Solutions delivers exceptional construction services in London and surronding areas. Specializing in bathroom and kitchen refurbishme...
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 Romford? Tony Rutter has been helping local clients (10 mile radius) with their extension buildering jobs for many yea...
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...
Relax... you have found a reliable extension builder in Romford. A Star Construction is a friendly and reliable company based in Romford who consid...
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
Romford Essex, RM1
Q Boss D&B is an established extension buildering business in Romford. We come highly recommended and provide competitive quotes for your work.
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Building a granny annexe ranges from £86,416 (RTC Plumbers based in RM6) 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 Romford by posting a job with HaMuch. We will send it to extension builders in Romford 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 - £17,753

Two storey extension - £88,379

Build a timber frame extension - £26,253

Build a swimming pool - £81,253

Single storey extension - £60,056

Side return extension - £44,344

Install an RSJ - £2,453

Outbuilding - £10,253

Build a Mansard loft conversion - £52,253

Loft conversion - £36,120

Build a kitchen extension - £42,253

Hip to gable loft conversion - £42,253

Granny annexe - £87,253

Garden office - £10,253

Convert a Garage - £16,253

Garage - £18,753

Build a flat roof extension - £22,253

Build a dormer loft conversion - £42,253

Concrete foundations - £6,503

Convert a bungalow loft - £29,253

Convert a basement - £40,344