From £22,328
Mayfair developers have been in the construction industry for over a decade. Our passion is to transform old spaces into new usable homes for our c...
From £22,080
HED Builders Ltd - Building The Dream is a trusted extension builder serving customers in ME8 and the surrounding area. Contact us to today to ge...
From £22,048
HED Builders Ltd is a London based construction company specialising in the exclusive private housing market. Founded by Chris Hambrook and Marcin ...
From £21,920
DG Building Services Kent Limited is an established and experienced local extension builder in ME8. Please contact us for a free, no obligation quo...
From £22,200
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £22,080
We are a family run business with over 30 years experience in the roofing industry. We pride ourselves on our high standards of workmanship and cus...
From £21,960
Need to find an Extension Builder near you for all your extension buildering work?
McCready's Lofts & Refurbishments provides a local, trus...
From £21,944
Top Form Construction are here to help customers who need an Extension Builder in ME8. We offer a competitive rate to complete all your extension b...
From £21,904
Zeppelin Construction Ltd is a construction company based in Gillingham, Kent. We offer a wide range of construction services to both domestic and ...

A flat roof extension ranges from the cheapest of £21,904 (Zeppelin Construction Ltd based in ME7) to the dearest of £22,424 (Des Durant General Building based in ME5), 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 ME8 by posting a job with HaMuch. We'll send it to extension builders in ME8.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Build A Flat Roof Extension near Gillingham | £39 | £253 |
| Build A Flat Roof Extension near Chatham | £39 | £254 |
| Build A Flat Roof Extension near Rochester | £39 | £254 |
| Build A Flat Roof Extension near Sittingbourne | £35 | £246 |
| Build A Flat Roof Extension near Maidstone | £40 | £255 |
| Build A Flat Roof Extension near Larkfield | £41 | £253 |
| Build A Flat Roof Extension near Swale | £35 | £241 |
| Build A Flat Roof Extension near Gravesend | £40 | £260 |
| Build A Flat Roof Extension near Canvey Island | £39 | £256 |
| Build A Flat Roof Extension near Northfleet | £41 | £261 |
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 - £17,589

Two storey extension - £88,133

Build a timber frame extension - £26,089

Build a swimming pool - £81,089

Single storey extension - £56,776

Side return extension - £42,499

Install an RSJ - £2,289

Outbuilding - £10,089

Build a Mansard loft conversion - £52,089

Loft conversion - £34,583

Build a kitchen extension - £42,089

Hip to gable loft conversion - £42,089

Granny annexe - £87,089

Garden office - £10,089

Convert a Garage - £16,089

Garage - £18,589

Build a flat roof extension - £22,089

Build a dormer loft conversion - £42,089

Concrete foundations - £6,339

Convert a bungalow loft - £29,089

Convert a basement - £38,499