Find affordable Seaham extension builders now

Extension builders rates in Seaham range from £32/hour £226/day (David Robertson builders ) to £42/hour £624/day (RAINTON CONSTRUCTION LTD). To see prices and availability now for your job click green button.

HaMuch is Excellent

How HaMuch saves you money

Post your job for free

Post your job for free

We send your job to ALL Seaham extension builders

Compare quotes

Compare quotes

Available extension builders in Seaham reply

Save Money

Save Money

Select your affordable Seaham extension builder

Post your job

£37/hr

£226/day

Last active Oct 26
Get quotes

DHB Builders

Trusted and professional extension builder in Seaham. Experienced in all extension buildering work and keeping within budget and on quote. DHB Buil...

"Build a two storey extension" - SR2, job posted 27/11/25

£37/hr

£229/day

Last active Oct 26
Get quotes

LJP Roofing

LJP Roofing are here to help customers who need an Extension Builder in Seaham. We offer a competitive rate to complete all your extension builderi...

"Build a dormer loft conversion" - SR3, job posted 02/09/25

£42/hr

£263/day

Last active Oct 26
Get quotes

RAINTON CONSTRUCTION LTD

RAINTON CONSTRUCTION LTD is an established and experienced local extension builder in Seaham. Please contact us for a free, no obligation quote and...

"Garage conversion" - DH4, job posted 18/05/24

£36/hr

£242/day

Last active Sep 26
Get quotes

Building Craft Ltd

Building Craft Ltd is an established extension buildering business in Seaham. We come highly recommended and provide competitive quotes for your wo...

£35/hr

£248/day

Last active Sep 26
Get quotes

COUSINS BUILDG & RFING SRV LTD

Ian

Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...

£32/hr

£624/day

Last active Jul 26
Get quotes

David Robertson builders

David Robertson

Trusted and professional extension builder in Seaham. Experienced in all extension buildering work and keeping within budget and on quote. David R...

£35/hr

£239/day

Last active Mar 26
Get quotes

STEVE MULVANEY BUILDING

STEVE MULVANEY BUILDING are here to help customers who need an Extension Builder in Seaham. We offer a competitive rate to complete all your extens...

£35/hr

£239/day

Get quotes

Home Grown NE

Our building services company Home Grown NE has been providing professional, trustworthy building services to customers throughout the North-East f...

£38/hr

£259/day

Get quotes

J T Lofts

Homeowners look no further if you want a qualified extension builder to work in your home. J T Lofts are tidy and neat, providing a quality extensi...

Compare Seaham extension builders rates

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.

More extensions & conversions cost guides...

People in Seaham 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!