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Select your affordable HA4 extension builder
Mario Prajar Building Services is an established and experienced local extension builder in HA4. Please contact us for a free, no obligation quote ...
Need to find an Extension Builder near you for all your extension buildering work?
MAX CONSTRUCTION LTD provides a local, trusted extension...
Ruislip, HA4
Relax... you have found a reliable extension builder in HA4. C T Edwards is a friendly and reliable company based in HA4 who consider no job as too...
Relax... you have found a reliable extension builder in HA4. Building Service and Support Ltd is a friendly and reliable company based in HA4 who c...
Ruislip, HA4
ALG Renovations is a well established, trustworthy, reliable and professional operation with over 17 years experience myself in the trade, base...
DeHavilland Design and Build have more than 12 years of experience working on major refurbishments, extensions and renovations in Central & West Lo...
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
J B N BUILDING SERVICES LIMIT are here to help customers who need an Extension Builder in HA4. We offer a competitive rate to complete all your ex...
Greater London, HA4
Relax... you have found a reliable extension builder in HA4. The Property Planner is a friendly and reliable company based in HA4 who consider no j...
Nicola
Welcome to Homeworks Roofing Services, we work on roof tops of private homes and listed buildings across Middlesex, West London and Ruislip.

Garage conversions in HA4 typically range from £15,880 (MAX CONSTRUCTION LTD based in HA4) to £16,408 (J B N BUILDING SERVICES LIMIT based in HA4), but the only way to get an accurate cost for your specific project is to get quotes.
Post a job with HaMuch and we'll send it to extension builders in HA4 who will be happy to help.
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 - £17,695

Two storey extension - £88,293

Build a timber frame extension - £26,195

Build a swimming pool - £81,195

Single storey extension - £58,904

Side return extension - £43,696

Install an RSJ - £2,395

Outbuilding - £10,195

Build a Mansard loft conversion - £52,195

Loft conversion - £35,580

Build a kitchen extension - £42,195

Hip to gable loft conversion - £42,195

Granny annexe - £87,195

Garden office - £10,195

Convert a Garage - £16,195

Garage - £18,695

Build a flat roof extension - £22,195

Build a dormer loft conversion - £42,195

Concrete foundations - £6,445

Convert a bungalow loft - £29,195

Convert a basement - £39,696