Name: Extension Builder
Brand: HaMuch
SKU: extension-renovation
Rating: 4.7 (10 reviews)

Find affordable IP1 extension builders

Prices range from cheapest £20/hour and £162/day (Caley & Son) to £74/hour and £371/day (Universal Property Services Ltd) - average £35/hr and £241/day

HaMuch is Excellent

Local IP1 extension builders & recently posted jobs

"4x3m Single storey extension" - IP5, job posted 14/04/26

"Dormer loft conversion" - IPSWICH, job posted 30/03/26

"Two storey extension" - IPSWICH, job posted 05/03/26

"Single storey extension" - IP4, job posted 01/02/26

"Cost of a loft conversion" - IP2, job posted 31/10/25

"I am looking for house to buy Ipswich, i have narrow down to few houses, but i would like to know extensions like bulding a shower ensuite, conservatory, heating replacements etc on these houses. Because i am taking the extension cost also into account along with the buying cost. it would be..." - IP1, job posted 25/09/25

"Remove a wall and build a side extension" - IP4, job posted 02/07/25

"Loft conversion" - NORTH EAST IPSWICH, job posted 25/06/25

"Build an outbuilding" - IP6 9, job posted 28/02/25

"Underpinning" - IPSWICH, job posted 16/01/25

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 IP1 extension builders rates

Compare IP1 extension builders rates (excluding VAT or callout charges)
Location in UK	Hourly Rate	Daily Rate
Extension Builders near Ipswich	£33	£235
Extension Builders near Harwich	£34	£248
Extension Builders near Felixstowe	£31	£231
Extension Builders near Stowmarket	£30	£221
Extension Builders near Tendring	£31	£226
Extension Builders near Suffolk Coastal	£28	£215
Extension Builders near Colchester	£33	£230
Extension Builders near Sudbury	£34	£229
Extension Builders near Clacton-on-Sea	£31	£232
Extension Builders near Bury St Edmunds	£34	£251

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 - £25,928

Garden office - £9,928

Granny annexe - £86,928

Build a flat roof extension - £21,928

Convert a Garage - £15,928

Hip to gable loft conversion - £41,928

Convert a bungalow loft - £28,928

Build a dormer loft conversion - £41,928

Build a swimming pool - £80,928

Build a Mansard loft conversion - £51,928

Concrete foundations - £6,178

Underpin a building - £17,428

Two storey extension - £87,892

Convert a basement - £36,690

Side return extension - £40,690

Loft conversion - £33,075

Garage - £18,428

Single storey extension - £53,560

Outbuilding - £9,928

Install an RSJ - £2,128

Build a kitchen extension - £41,928

More extensions & conversions cost guides...

People in IP1 searching for a Extension Builder also viewed...

Painter and Decorator

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!

Appliance Repair Specialist

Conservatory Specialist