Name: Extension Builder
Brand: HaMuch
SKU: extension-renovation
Rating: 4.75 (16 reviews)

Find affordable CT11 extension builders

Prices range from cheapest £23/hour and £180/day (Christian Builders Margate Ltd) to £31/hour and £241/day (Teekay solutions Limited) - average £26/hr and £206/day

HaMuch is Excellent

Local CT11 extension builders & latest jobs

"Side return extension" - CT11, job posted 31/08/26

"Quote for a insurance claim" - CT9, job posted 13/08/26

"Extending already existing extension by about a meter with some loft windows, there’s already kitchen extension in place but I want to take it further to the other side, I can provide photos and examples" - CT1, job posted 01/08/26

"Looking to research how much a side return kitchen extension before deciding to go ahead with it. Alternatively, looking for a smaller extension to the rear of kitchen." - MARGATE, job posted 29/09/25

"Side return extension" - THANET, job posted 29/09/25

"Granny annexe" - THANET, job posted 07/05/25

"Rear small extension 3metres from back of house across the width of house with bi fold doors. Partial Removal of internal wall lintel to load bearing wall." - THANET, job posted 15/02/25

"Loft conversion" - THANET, job posted 30/12/24

"RSJ installation, knock internal walls down in kitchen" - CT9, job posted 20/12/24

"Loft conversion" - THANET, job posted 14/10/24

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 CT11 extension builders rates

Compare CT11 extension builders rates (excluding VAT or callout charges)
Location in UK	Hourly Rate	Daily Rate
Extension Builders near Margate	£27	£208
Extension Builders near Ramsgate	£27	£208
Extension Builders near Broadstairs	£27	£208
Extension Builders near Thanet	£27	£207
Extension Builders near Deal	£26	£199
Extension Builders near Herne Bay	£28	£213
Extension Builders near Canterbury	£31	£232
Extension Builders near Dover	£29	£226
Extension Builders near Whitstable	£28	£214
Extension Builders near Folkestone	£31	£233

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 - £25,648

Garden office - £9,648

Granny annexe - £86,648

Build a flat roof extension - £21,648

Convert a Garage - £15,648

Hip to gable loft conversion - £41,648

Convert a bungalow loft - £28,648

Build a dormer loft conversion - £41,648

Build a swimming pool - £80,648

Build a Mansard loft conversion - £51,648

Concrete foundations - £5,898

Underpin a building - £17,148

Two storey extension - £87,472

Convert a basement - £33,540

Side return extension - £37,540

Loft conversion - £30,450

Garage - £18,148

Single storey extension - £47,960

Outbuilding - £9,648

Install an RSJ - £1,848

Build a kitchen extension - £41,648

More extensions & conversions cost guides...

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