How HaMuch saves you money
Post your job for free
We send your job to ALL HA4 extension builders
Compare quotes
Available extension builders in HA4 reply
Save Money
Select your affordable HA4 extension builder
Post your job
Mario Prajar Building Services
Mario Prajar Building Services is an established and experienced local extension builder in HA4. Please contact us for a free, no obligation quote ...
"Outbuilding" - HA4, job posted 16/03/26
MAX CONSTRUCTION LTD
Need to find an Extension Builder near you for all your extension buildering work?
MAX CONSTRUCTION LTD provides a local, trusted extension...
"Cost to build a single storey extension rear roughly 4x5 and build a dormer loft conversion with ceilings lowered to get height in loft on a terraced house." - HA4, job posted 17/09/25
C T Edwards
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...
"Outbuilding" - HA4, job posted 11/03/25
Building Service and Support Ltd
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...
"Two storey extension" - RUISLIP, job posted 04/12/24
ALG Renovations
Ruislip, HA4
ALG Renovations is a well established, trustworthy, reliable and professional operation with over 17 years experience myself in the trade, base...
"Extension double story" - HA4, job posted 04/04/24
DeHavilland Design & Build Limited
DeHavilland Design and Build have more than 12 years of experience working on major refurbishments, extensions and renovations in Central & West Lo...
J B S Development & Construction Ltd
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
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...
The Property Planner
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...
Homeworks Roofing
Nicola
Welcome to Homeworks Roofing Services, we work on roof tops of private homes and listed buildings across Middlesex, West London and Ruislip.
£40/hr
£253/day
RMB Building and Development Ltd
Experienced extension builder ready to quote for your work. RMB Building and Development Ltd is the best extension builder in HA4. No obligation fr...
£43/hr
£270/day
OM BUILDERS
Relax... you have found a reliable extension builder in HA4. OM BUILDERS is a friendly and reliable company based in HA4 who consider no job as too...
£43/hr
£273/day
Floyd Andrews Building Service
Ruislip, HA4
Relax... you have found a reliable extension builder in HA4. Floyd Andrews Building Service is a friendly and reliable company based in HA4 who con...
£38/hr
£243/day
Excelsior Construction Ltd
Excelsior Construction Ltd is an established and experienced local extension builder in HA4. Please contact us for a free, no obligation quote and ...
£38/hr
£241/day
SL9 Building Services
Greater London, HA4
Need to find an Extension Builder near you for all your extension buildering work?
SL9 Building Services provides a local, trusted extensio...
£44/hr
£274/day
Oldfield Construction
Need to find an Extension Builder near you for all your extension buildering work?
Oldfield Construction provides a local, trusted extensio...
£41/hr
£258/day
Adica Limited
london, HA4
We cover the entire London area and the home counties. With many years experience, we are best placed to help you with all your conversion, extensi...
£48/hr
£300/day
Harrow Roofing and Building Limited
A Roofing company which prides itself on quality and superior service. As a company we have decades of experience within the industry and have diff...
£43/hr
£271/day
Robin Services Ltd
Greater London, HA4
Trusted and professional extension builder in HA4. Experienced in all extension buildering work and keeping within budget and on quote. Robin Servi...
£40/hr
£249/day
Platinum Star Constructions Ltd
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
Quickly find an Extension Builder in HA4
Use these steps to find Extension Builders in HA4 for FREE!
- Post your job: Click "Get quotes" and briefly describe your job.
- Enter your details: We’ll match you with Extension Builders in HA4. We’ll notify you via text or email when an Extension Builder is available to quote.
- Select your Extension Builder: Compare Extension Builders interested in working with you. You can use HaMuch to safely message local HA4 Extension Builders or phone them directly - you’re in control!
Local Extension Builders in London Boroughs
Job estimates from extension builders near 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.
Build a timber frame extension - £26,168
Garden office - £10,168
Granny annexe - £87,168
Build a flat roof extension - £22,168
Convert a Garage - £16,168
Hip to gable loft conversion - £42,168
Convert a bungalow loft - £29,168
Build a dormer loft conversion - £42,168
Build a swimming pool - £81,168
Build a Mansard loft conversion - £52,168
Concrete foundations - £6,418
Underpin a building - £17,668
Two storey extension - £88,252
Convert a basement - £39,390
Side return extension - £43,390
Loft conversion - £35,325
Garage - £18,668
Single storey extension - £58,360
Outbuilding - £10,168
Install an RSJ - £2,368
Build a kitchen extension - £42,168
People in HA4 searching for a Extension Builder also viewed...
The Largest Database of UK Trade Rates
At HaMuch we know what tradespeople charge because we have the largest database of rates anywhere in the UK. If you want quotes for jobs at the right price for you, post your jobs with HaMuch and get your home improvements kickstarted straight away!