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Select your affordable Collier Row 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...
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
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 Collier Row. A Star Construction is a friendly and reliable company based in Collier Row wh...
Q Boss D&B is an established extension buildering business in Collier Row. 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 Collier Row. Please contact us for a free, no obligation quote...
Hikmet Guven
skilled worker who specializes in completing a wide range of building and renovation projects

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 Collier Row by posting a job with HaMuch. We will send it to extension builders in Collier Row 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 - £17,747

Two storey extension - £88,371

Build a timber frame extension - £26,247

Build a swimming pool - £81,247

Single storey extension - £59,944

Side return extension - £44,281

Install an RSJ - £2,447

Outbuilding - £10,247

Build a Mansard loft conversion - £52,247

Loft conversion - £36,068

Build a kitchen extension - £42,247

Hip to gable loft conversion - £42,247

Granny annexe - £87,247

Garden office - £10,247

Convert a Garage - £16,247

Garage - £18,747

Build a flat roof extension - £22,247

Build a dormer loft conversion - £42,247

Concrete foundations - £6,497

Convert a bungalow loft - £29,247

Convert a basement - £40,281