Name: Extension Builder
Brand: HaMuch
SKU: extension-renovation
Rating: 4.68 (20 reviews)

Need help with a job?

Find affordable Allenton extension builders

Prices range from cheapest £24/hour and £206/day (BRICKON CONSTRUCTION LIMITED) to £35/hour and £283/day (Rowes Building Ltd) - average £31/hr

HaMuch is Excellent

Local Allenton extension builders

"Single storey extension" - DE3, job posted 01/09/26

"Single storey extension" - DE22, job posted 26/08/26

"RSJ installation" - DERBY, job posted 28/04/26

"Loft conversion" - DERBY, job posted 16/01/26

"Dormer loft conversion" - DERBY, job posted 24/09/25

"Side return extension" - DERBY, job posted 22/08/25

"RSJ installation" - DERBY, job posted 11/07/25

"Hip to gable loft conversion" - DE21, job posted 26/04/25

"Two storey extension" - DERBY, job posted 15/04/25

"Loft conversion" - DERBY, job posted 01/04/25

"Two storey extension" - DERBY, job posted 22/03/25

"Hi, we need to get 3 x6 rear single story extension build all the foundations are ready and inspected by the building rugs its ready to build now ." - DERBY, job posted 14/02/25

"Side return extension" - DERBY, job posted 04/01/25

"We are looking for a quote for a 3by 7m side extention" - DE72, job posted 07/10/24

"We are looking for a quote for a 7byy 3m side extention" - DE72, job posted 07/10/24

"We are looking for a quote to build a side extention 7by 3m" - DE72, job posted 07/10/24

"Two storey extension" - DE24, job posted 29/09/24

What are the best ways to avoid problems when paying the Extension Builder?

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

Before the job starts should I agree standards of quality and behaviour?

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 Allenton extension builders rates

Compare Allenton extension builders rates (excluding VAT or callout charges)
Location in UK	Hourly Rate	Daily Rate
Extension Builders near Derby	£30	£228
Extension Builders near Erewash	£31	£233
Extension Builders near Long Eaton	£32	£248
Extension Builders near Ilkeston	£31	£235
Extension Builders near Amber Valley	£31	£238
Extension Builders near Swadlincote	£31	£248
Extension Builders near Belper	£32	£244
Extension Builders near Burton upon Trent	£32	£255
Extension Builders near Heanor	£31	£236
Extension Builders near Broxtowe	£33	£240

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 - £25,864

Garden office - £9,864

Granny annexe - £86,864

Build a flat roof extension - £21,864

Convert a Garage - £15,864

Hip to gable loft conversion - £41,864

Convert a bungalow loft - £28,864

Build a dormer loft conversion - £41,864

Build a swimming pool - £80,864

Build a Mansard loft conversion - £51,864

Concrete foundations - £6,114

Underpin a building - £17,364

Two storey extension - £87,796

Convert a basement - £35,970

Side return extension - £39,970

Loft conversion - £32,475

Garage - £18,364

Single storey extension - £52,280

Outbuilding - £9,864

Install an RSJ - £2,064

Build a kitchen extension - £41,864

More extensions & conversions cost guides...

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