Find affordable Sefton extension builders
- Local extension builders Sefton
- Job estimates from extension builders near you
- Compare Sefton extension builders rates
| Low | Average | High |
|---|---|---|
| £2 | £29 | £100 |
| Average hourly rate from 57 extension builders in Sefton ex VAT or callout | ||
Average Sefton extension builder hourly rate is £29
Range from the cheapest, mostly independent, £3 per day (T&T Building Contractors) to the dearest, normally the best, £90 per hour and £320 per day (Crosby Property Maintenance).
Comparing hourly and daily rates of extension builders gives you an idea of who will be better value but the best way to compare costs is to get actual quotes.
What to do - Click 'Get quotes' and describe your job and we will send it to your local extension builders for FREE.

Local extension builders Sefton
T&T Building Contractors
£2/hour
£3/day
Extension Builder in Liverpool, L23. Working within a 20 mile radius.
Areas Covered - North west
"Flat roof extension"
FORMBY
KOR BUILDING SERVICES
£26/hour
£185/day
KOR BUILDING SERVICES is an established and experienced local extension builder in Sefton. Please contact us for a free, no obligation quote and competitive rates. Covering a 20 mile radius.
Crosby Property Maintenance
£90/hour
£320/day
Extension Builder in Sefton, L23. Covering 20 mile radius.
Crosby Property Maintenance is a trusted Extension Builder serving customers in Sefton and the surrounding area. Contact us to today to get a competitive quote for work in Sefton. We offer value for money and quality to our customers, we pride ourselves on the positive feedback.
BTC Bernstef Ltd
£27/hour
£191/day
Extension Builder in Sefton, L23. Working within a 20 mile radius.
BTC Bernstef Ltd is an established business in Sefton. We come highly recommended and provide competitive quotes for your work.
J.L Construction
£25/hour
£250/day
Extension Builder in Sefton, L22. Working within a 20 mile radius.
J.L Construction is an established business in Sefton. We come highly recommended and provide competitive quotes for your work.
PARKFIELD CONSTRUCTION LTD
£26/hour
£181/day
Extension Builder in Sefton, L22. Working within a 20 mile radius.
PARKFIELD CONSTRUCTION LTD is an established business in Sefton. We come highly recommended and provide competitive quotes for your work.
A Build Create @ Space
£27/hour
£191/day
Extension Builder in Sefton, L22. Covering 20 mile radius.
A Build Create @ Space is a trusted Extension Builder serving customers in Sefton and the surrounding area. Contact us to today to get a competitive quote for work in Sefton. We offer value for money and quality to our customers, we pride ourselves on the positive feedback.
Sbetts Building
£26/hour
£181/day
Need to find an Extension Builder near you for all your work?
Sbetts Building provides a local, trusted service in and around Sefton. Homeowners and landlords choose us for our excellent knowledge, experience and reliability plus reasonable call-out fees if applicable and no obligation quotes.
Altea Property Repairs
£40/hour
£200/day
Extension Builder in Waterloo, Liverpool, L22. Working within a 20 mile radius.
Recommended by many clients, I offer a Precision Quality Building & Engineering Service: Carpentry Joinery and structural work, Guttering Soffit and Fascia. I work in Steel, Wood, Concrete & just about anything. So I'm ready for any challenge- and...
Areas Covered - Crosby, Liverpool, Wirral
Sali Construction Ltd
£25/hour
£200/day
Extension Builder in liverpool, L22. Working within a 20 mile radius.
Hello .Professional and fast service
OLIA CONSTRUCTION LTD
£26/hour
£184/day
Relax... you have found a reliable extension builder in Sefton. OLIA CONSTRUCTION LTD is a friendly and reliable company based in Sefton who consider no job as too big or too small. Qualified, professional extension builders with years of experience in the industry.
Jones Landscaping
£26/hour
£180/day
Trusted and professional extension builder in Sefton. Experienced in all work and keeping within budget and on quote. Jones Landscaping have many happy customers in Sefton, testimonials available.
CJ Construction
£27/hour
£191/day
CJ Construction are here to help customers who need an Extension Builder in Sefton. We offer a competitive rate to complete all your jobs to professional standards.
KM Building Services
£27/hour
£186/day
Relax... you have found a reliable extension builder in Sefton. KM Building Services is a friendly and reliable company based in Sefton who consider no job as too big or too small. Qualified, professional extension builders with years of experience in the industry.
Gemini Building Services
£22.5/hour
£180/day
Extension Builder in Bootle, L20. Working within a 20 mile radius.
We constantly cover all aspects of building, we employ every trade needed for all building services needed. All to suit our customers needs and budgets.
Areas Covered - All Merseyside areas
Bob the Builder
£27/hour
£192/day
Extension Builder in Sefton, L20.
Need an Extension Builder in Sefton? Bob the Builder has been helping local clients (20 mile radius) with their jobs for many years. Get a quote today.
Derek J Platt & Co
£27/hour
£191/day
Need to find an Extension Builder near you for all your work?
Derek J Platt & Co provides a local, trusted service in and around Sefton. Homeowners and landlords choose us for our excellent knowledge, experience and reliability plus reasonable call-out fees if applicable and no obligation quotes.
Red Avex Ltd
£28/hour
£196/day
Red Avex Ltd are here to help customers who need an Extension Builder in Sefton. We offer a competitive rate to complete all your jobs to professional standards.
John Scarisbrick
£20/hour
£160/day
Extension Builder in Ormskirk, L39. Working within a 20 mile radius.
Local reliable family business
Free estimates
Clean friendly service
KTS
£27/hour
£191/day
Need to find an Extension Builder near you for all your work?
KTS provides a local, trusted service in and around Sefton. Homeowners and landlords choose us for our excellent knowledge, experience and reliability plus reasonable call-out fees if applicable and no obligation quotes.
The most important thing is do avoid handing over cash or paying large sums in advance. Be wary of paying cash for a cheaper job, i.e. to avoid VAT, you may be going down a slippery slope of not doing things properly which may eventually mean your job is also not done properly.
Agree when you intend to pay, ideally after you are satisfied with the completed job. If it is a big job agree a schedule of staged payments which is fair to both parties.
To avoid bad tradespeople and to ensure you can find them should they not answer a mobile;
- Get proper contact details and check them yourself
- Check if the company is verified on the Companies House website
- Get phone details, ideally a land line or 0800 number and check it
- Get a physical office address
Get quotes in writing by email or in person if possible. Getting quotes online or by text is ok (make sure you accept the offer by replying). For large projects make a written agreement, schedule of works and snagging plans as part of a working document. Also;
- Agree expected quality of workmanship and materials in advance
- When will work start and when will project be finished, what happens if project over runs ?
- How long is the guarantee on work and materials eg 12 months
- Discuss onsite behaviour in advance (no smoking, swearing or using mobile phones for non-work purposes)
- Agree that your Extension Builder will remove all debris and rubbish and what level of tidying up you want after job
Compare Sefton extension builders rates
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Extension Builders near Sefton | £29 | £187 |
| Extension Builders near Crosby | £29 | £190 |
| Extension Builders near Formby | £20 | £145 |
| Extension Builders near Bootle | £29 | £202 |
| Extension Builders near Maghull | £28 | £189 |
| Extension Builders near Wallasey | £29 | £203 |
| Extension Builders near Kirkby | £29 | £210 |
| Extension Builders near Liverpool | £28 | £199 |
| Extension Builders near Ormskirk | £25 | £179 |
| Extension Builders near Birkenhead | £28 | £200 |
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.

Timber frame extension - £25,608

Garden office - £9,608

Granny annexe - £86,608

Flat roof extension - £21,608

Garage conversion - £15,608

Hip to gable loft conversion - £41,608

Bungalow loft conversion - £28,608

Dormer loft conversion - £41,608

Swimming pool - £80,608

Mansard loft conversion - £51,608

Concrete foundation - £5,858

Underpinning - £17,108

Two storey extension - £87,412

Basement conversion - £33,090

Side return extension - £37,090

Loft conversion - £30,075

Garage - £18,108

Single storey extension - £47,160

Outbuilding - £9,608

RSJ installation - £1,808

Kitchen extension - £41,608
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