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Select your affordable WD25 extension builder
Watford, WD25
J Pellow & Son Ltd are here to help customers who need an Extension Builder in WD25. We offer a competitive rate to complete all your extension bui...
T N Roofing is an established extension buildering business in WD25. We come highly recommended and provide competitive quotes for your work.
Our building services company Conversion Property and Electrical Services has 17 years of experience in the industry. We have been helping customer...
Relax... you have found a reliable extension builder in WD25. Tonybuild is a friendly and reliable company based in WD25 who consider no job as too...
Emilian Czeiszperger
Watford, WD25
Hello I am Emilian , the proud owner of Eeoc Ltd, A little about me With many happy and returning customers over the last 14 years, y...
From £9,880
Relax... you have found a reliable extension builder in WD25. Crown Building is a friendly and reliable company based in WD25 who consider no job a...
From £9,912
Experienced extension builder ready to quote for your work. Progressive Design London is the best extension builder in WD25. No obligation free quo...
From £10,144
Primrose Projects is an established and experienced local extension builder in WD25. Please contact us for a free, no obligation quote and competit...
From £10,264
Need an Extension Builder in WD25? EMA Contractors has been helping local clients (20 mile radius) with their extension buildering jobs for many ye...
From £10,088
Need an Extension Builder in WD25? PM HOBBS BUILDING SERVICES has been helping local clients (10 mile radius) with their extension buildering jobs ...

Outbuilding costs in WD25 range from the cheapest of £9,880 (Crown Building based in WD24) to the dearest of £11,072 (Eeoc based in WD25), but these are just estimates.
Comparing extension builders estimates for building an outbuilding gives you an idea of who will be better value, but the best way to compare costs is to get actual quotes.
Get rates and quotes to build an outbuilding in WD25 by posting a job with HaMuch and we will send it to extension builders.
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| Outbuilding in Garston |
| Outbuilding in North Watford |
| Outbuilding in Potters Bar |
| Outbuilding in Watford |
| Outbuilding in Abbots Langley |
| Outbuilding in Watford |
| Outbuilding in West Watford |
| Outbuilding in Bushey Heath |
| Outbuilding in Kings Langley |
| Outbuilding in Radlett |
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 - £17,698

Two storey extension - £88,296

Build a timber frame extension - £26,198

Build a swimming pool - £81,198

Single storey extension - £58,952

Side return extension - £43,723

Install an RSJ - £2,398

Outbuilding - £10,198

Build a Mansard loft conversion - £52,198

Loft conversion - £35,603

Build a kitchen extension - £42,198

Hip to gable loft conversion - £42,198

Granny annexe - £87,198

Garden office - £10,198

Convert a Garage - £16,198

Garage - £18,698

Build a flat roof extension - £22,198

Build a dormer loft conversion - £42,198

Concrete foundations - £6,448

Convert a bungalow loft - £29,198

Convert a basement - £39,723