How HaMuch saves you money
Post your job for free
We send your job to ALL Portland extension builders
Compare quotes
Available extension builders in Portland reply
Save Money
Select your affordable Portland extension builder
Post your job
D WHYTON BUILDING SERVICES LTD
Portland, DT5
D WHYTON BUILDING SERVICES LTD is a trusted extension builder serving customers in Portland and the surrounding area. Contact us to today to get a ...
"Sash window repair old period property" - DT4, job posted 29/01/26
WEYMOUTH ROOFING CO.
WEYMOUTH ROOFING CO. is an established and experienced local extension builder in Portland. Please contact us for a free, no obligation quote and c...
£34/hr
£274/day
J FLANN BUILDING & MAINTENANCE
Need to find an Extension Builder near you for all your extension buildering work?
J FLANN BUILDING & MAINTENANCE provides a local, trusted...
£32/hr
£254/day
Design Properties & Renovations
Design Properties & Renovations is an established and experienced local extension builder in Portland. Please contact us for a free, no obligation ...
£40/hr
£317/day
Roofix and Build Ltd
Our building services company Roofix and Build Ltd have twenty years experience of helping customers in Weymouth and the surrounding area by provid...
£32/hr
£251/day
Harbour Property Improvements Limited
We are a small business priding oueselves on high quality works carried out with care and attention. We use a select few subcontractors to help com...
£34/hr
£268/day
Upcycle Interiors Limited
Weymouth based property Investment and Re-development: Upcycling discarded materials to provide bespoke interior refurbishments, full property reno...
£27/hr
£256/day
DM Building & Property Maintenance
Danny McGrady
DM Building & Property Maintenance is a trusted extension builder serving customers in Portland and the surrounding area. Contact us to today to ge...
£30/hr
£252/day
Dorset Showhomes Ltd
Dorset Showhomes Ltd is an established extension buildering business in Portland. We come highly recommended and provide competitive quotes for you...
£40/hr
£317/day
Chris Larner building services
Chris Larner building services is a trusted extension builder serving customers in Portland and the surrounding area. Contact us to today to get a ...
Compare Portland extension builders rates
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Extension Builders near Weymouth | £33 | £260 |
| Extension Builders near Dorchester | £30 | £230 |
| Extension Builders near Poole | £38 | £250 |
| Extension Builders near Bournemouth | £38 | £257 |
| Extension Builders near Yeovil | £34 | £294 |
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 - £26,104

Garden office - £10,104

Granny annexe - £87,104

Build a flat roof extension - £22,104

Convert a Garage - £16,104

Hip to gable loft conversion - £42,104

Convert a bungalow loft - £29,104

Build a dormer loft conversion - £42,104

Build a swimming pool - £81,104

Build a Mansard loft conversion - £52,104

Concrete foundations - £6,354

Underpin a building - £17,604

Two storey extension - £88,156

Convert a basement - £38,670

Side return extension - £42,670

Loft conversion - £34,725

Garage - £18,604

Single storey extension - £57,080

Outbuilding - £10,104

Install an RSJ - £2,304

Build a kitchen extension - £42,104
People in Portland 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!