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

Find affordable Gosforth extension builders

Prices range from cheapest £16/hour and £130/day (OCC Construction) to £48/hour and £360/day (Premier Preservations Ltd) - average £34/hr and £248/day

HaMuch is Excellent

Local Gosforth extension builders & latest jobs

"Job Title: Internal Wall Removal & Structural Steel Installation (Calcs Ready) Job Description: Hi, I am looking for a reliable, experienced general builder for a structural project at my home in Newcastle.The project involves removing two internal walls:A load-bearing living room wall. I already..." - NE7, job posted 21/06/26

"Dormer loft conversion" - NE6, job posted 16/05/26

"Dormer loft conversion hip to gable" - NE7, job posted 20/02/26

"Install 2 RSJs." - NE3, job posted 05/11/25

"Hi we’re looking for a quote into getting a small extension built We have bathroom and kitchen on back of house and wanting to open kitchen up We have a wall in between the kitchen and bathroom which needs knocking down for the extension to work otherwise it won’t be needed looking to find out..." - NE3, job posted 15/10/25

"Loft conversion" - NE8, job posted 26/07/25

"Loft conversion" - JESMOND, job posted 17/07/25

"Loft conversion" - GATESHEAD, job posted 06/06/25

"Dormer loft conversion" - NEWCASTLE UPON TYNE, job posted 01/04/25

"Hip to gable loft conversion" - NEW, job posted 04/02/25

"Dormer loft conversion" - NEWCASTLE UPON TYNE, job posted 15/01/25

"Two storey extension" - GATESHEAD, job posted 01/01/25

"Connect kitchen with garage and new bedroom" - NE5, job posted 19/08/24

"Timber frame extension" - NEWCASTLE-UPON-TYNE, job posted 18/07/24

"Loft conversion" - NEWCASTLE-UPON-TYNE, job posted 16/07/24

"Loft conversion" - NEWCASTLE-UPON-TYNE, job posted 13/05/24

"I need quote for extension" - NE1, job posted 11/05/24

"Loft conversion" - GATESHEAD, job posted 19/04/24

"Loft conversion" - NEWCASTLE-UPON-TYNE, job posted 03/04/24

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 Gosforth extension builders rates

Compare Gosforth extension builders rates (excluding VAT or callout charges)
Location in UK	Hourly Rate	Daily Rate
Extension Builders near Longbenton	£33	£233
Extension Builders near Newcastle Upon Tyne	£33	£235
Extension Builders near Gateshead	£33	£236
Extension Builders near Wallsend	£34	£245
Extension Builders near Cramlington	£36	£256
Extension Builders near Hebburn	£34	£246
Extension Builders near North Tyneside	£35	£253
Extension Builders near Whitley Bay	£38	£268
Extension Builders near Jarrow	£34	£262
Extension Builders near Tynemouth	£36	£257

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 - £26,016

Garden office - £10,016

Granny annexe - £87,016

Build a flat roof extension - £22,016

Convert a Garage - £16,016

Hip to gable loft conversion - £42,016

Convert a bungalow loft - £29,016

Build a dormer loft conversion - £42,016

Build a swimming pool - £81,016

Build a Mansard loft conversion - £52,016

Concrete foundations - £6,266

Underpin a building - £17,516

Two storey extension - £88,024

Convert a basement - £37,680

Side return extension - £41,680

Loft conversion - £33,900

Garage - £18,516

Single storey extension - £55,320

Outbuilding - £10,016

Install an RSJ - £2,216

Build a kitchen extension - £42,016

More extensions & conversions cost guides...

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