From £22,176
Relax... you have found a reliable extension builder in TN25. Clint Construction is a friendly and reliable company based in TN25 who consider no j...
From £22,184
ARTISAN CONSTRUCTION is an established and experienced local extension builder in TN25. Please contact us for a free, no obligation quote and compe...
From £22,384
MWM CARPENTRY LTD is a trusted extension builder serving customers in TN25 and the surrounding area. Contact us to today to get a competitive quote...
From £22,016
Trusted and professional extension builder in TN25. Experienced in all work and keeping within budget and on quote. C & K BUILDERS have many happy...
From £22,248
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of work in TN25 an...
From £21,984
County Construction are a reliable and reputable company that work across the County. We are a family-run business with a good reputation and have ...
From £22,088
FPS Construction is an established and experienced local extension builder in TN25. Please contact us for a free, no obligation quote and competiti...
From £22,160
Neil Baxter Construction are here to help customers who need an Extension Builder in TN25. We offer a competitive rate to complete all your jobs t...
From £22,096
Relax... you have found a reliable extension builder in TN25. P F Construction t/a is a friendly and reliable company based in TN25 who consider no...
From £21,936
ARIA DESIGN & BUILD is an established business in TN25. We come highly recommended and provide competitive quotes for your work.

A flat roof extension ranges from the cheapest of £21,936 (ARIA DESIGN & BUILD based in TN25) to the dearest of £22,384 (MWM CARPENTRY LTD based in TN25), 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 TN25 by posting a job with HaMuch. We'll send it to extension builders in TN25.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Build A Flat Roof Extension near Ashford | £30 | £213 |
| Build A Flat Roof Extension near Hythe | £27 | £196 |
| Build A Flat Roof Extension near Folkestone | £27 | £203 |
| Build A Flat Roof Extension near Faversham | £31 | £211 |
| Build A Flat Roof Extension near Canterbury | £28 | £211 |
| Build A Flat Roof Extension near Swale | £31 | £214 |
| Build A Flat Roof Extension near Whitstable | £24 | £184 |
| Build A Flat Roof Extension near Dover | £25 | £199 |
| Build A Flat Roof Extension near Sittingbourne | £31 | £217 |
| Build A Flat Roof Extension near Herne Bay | £24 | £184 |
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 - £17,627

Two storey extension - £88,191

Build a timber frame extension - £26,127

Build a swimming pool - £81,127

Single storey extension - £57,544

Side return extension - £42,931

Install an RSJ - £2,327

Outbuilding - £10,127

Build a Mansard loft conversion - £52,127

Loft conversion - £34,943

Build a kitchen extension - £42,127

Hip to gable loft conversion - £42,127

Granny annexe - £87,127

Garden office - £10,127

Convert a Garage - £16,127

Garage - £18,627

Build a flat roof extension - £22,127

Build a dormer loft conversion - £42,127

Concrete foundations - £6,377

Convert a bungalow loft - £29,127

Convert a basement - £38,931