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Select your affordable Thanet extension builder
Brendan Healy
All building work , all hoyse maintenance. House extension and refurbishment works.
At Wells & Co we offer a comprehensive building service. We specialise in Period properties, bespoke renovations and steel fabrication.Along with o...
Christian Builders Margate Ltd is a multi-service company founded by Nick Christian. We operate with a highly skilled team of designers, tradesmen,...
GDB CONSTRUCTION is a trusted extension builder serving customers in Thanet and the surrounding area. Contact us to today to get a competitive quot...
Festim Kastrati
We been for almost 15 years in the building trade,
we are easy going and willing to work with our client and to archive the best r...
Need to find an Extension Builder near you for all your extension buildering work?
Bespoke building projects provides a local, trusted exte...
From £22,032
Jordan Pink
Monarch Builders South East Ltd is an established and experienced local extension builder in Thanet. Please contact us for a free, no obligation qu...
From £21,928
Teekay solutions Limited is an established and experienced local extension builder in Thanet. Please contact us for a free, no obligation quote and...
From £21,504
Christian Builders Margate Ltd is an established and experienced local extension builder in Thanet. Please contact us for a free, no obligation quo...
From £21,600
Relax... you have found a reliable extension builder in Thanet. Paragon Stone Design is a friendly and reliable company based in Thanet who conside...

A flat roof extension ranges from the cheapest of £21,312 (B H G M Ltd based in CT7) to the dearest of £22,032 (Monarch Builders South East Ltd based in CT9), but these are just estimates. While they give you an idea of who will be better value, the best way to compare costs is to get real quotes.
Find out how much your flat roof extension will cost in Thanet by posting a job with HaMuch. We'll send it to extension builders in Thanet.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Build A Flat Roof Extension near Thanet | £27 | £207 |
| Build A Flat Roof Extension near Margate | £27 | £208 |
| Build A Flat Roof Extension near Ramsgate | £27 | £208 |
| Build A Flat Roof Extension near Broadstairs | £27 | £208 |
| Build A Flat Roof Extension near Herne Bay | £28 | £213 |
| Build A Flat Roof Extension near Deal | £26 | £199 |
| Build A Flat Roof Extension near Canterbury | £31 | £232 |
| Build A Flat Roof Extension near Whitstable | £28 | £214 |
| Build A Flat Roof Extension near Dover | £29 | £226 |
| Build A Flat Roof Extension near Faversham | £34 | £235 |
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.

Underpin a building - £17,167

Two storey extension - £87,501

Build a timber frame extension - £25,667

Build a swimming pool - £80,667

Single storey extension - £48,344

Side return extension - £37,756

Install an RSJ - £1,867

Outbuilding - £9,667

Build a Mansard loft conversion - £51,667

Loft conversion - £30,630

Build a kitchen extension - £41,667

Hip to gable loft conversion - £41,667

Granny annexe - £86,667

Garden office - £9,667

Convert a Garage - £15,667

Garage - £18,167

Build a flat roof extension - £21,667

Build a dormer loft conversion - £41,667

Concrete foundations - £5,917

Convert a bungalow loft - £28,667

Convert a basement - £33,756