From £22,016
Relax... you have found a reliable extension builder in Leiston. Aldeburgh Landscaping is a friendly and reliable company based in Leiston who cons...
From £21,632
We can take you dream into reality with our team of experienced tradesmen we cover every aspect of building and landscaping including plastering, e...
From £21,576
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £21,768
After 6 years as a member of the Which? Trusted Traders scheme D.A.Elias Builders are proud to receive our latest Certificate, ensuring we...
From £21,296
Caley & Son are here to help customers who need an Extension Builder in Leiston. We offer a competitive rate to complete all your extension builder...
From £22,024
Reapy property management carry out the following: - Brick / block work - Foundations - Underground drainage - Soft and hard lands...
From £21,560
Garden Wall & Building Specialists is an established and experienced local extension builder in Leiston. Please contact us for a free, no obligatio...
From £22,024
NEIL WYLIE BUILDERS LIMITED is a trusted extension builder serving customers in Leiston and the surrounding area. Contact us to today to get a comp...
From £21,808
Need to find an Extension Builder near you for all your extension buildering work?
Swan Builders Ltd provides a local, trusted extension bu...
From £21,960
BOOTH DESIGN AND BUILD LTD are here to help customers who need an Extension Builder in Leiston. We offer a competitive rate to complete all your ex...

A flat roof extension ranges from the cheapest of £21,296 (Caley & Son based in IP3) to the dearest of £22,024 (Reapy property management based in Ip15), 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 Leiston by posting a job with HaMuch. We'll send it to extension builders in Leiston.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Build A Flat Roof Extension near Suffolk Coastal | £28 | £215 |
| Build A Flat Roof Extension near Waveney | £24 | £200 |
| Build A Flat Roof Extension near Felixstowe | £31 | £231 |
| Build A Flat Roof Extension near Lowestoft | £24 | £197 |
| Build A Flat Roof Extension near Ipswich | £33 | £235 |
| Build A Flat Roof Extension near Stowmarket | £30 | £221 |
| Build A Flat Roof Extension near Harwich | £34 | £248 |
| Build A Flat Roof Extension near Gorleston-on-Sea | £25 | £205 |
| Build A Flat Roof Extension near Tendring | £31 | £226 |
| Build A Flat Roof Extension near Norwich | £25 | £200 |
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 - £17,266

Two storey extension - £87,650

Build a timber frame extension - £25,766

Build a swimming pool - £80,766

Single storey extension - £50,328

Side return extension - £38,872

Install an RSJ - £1,966

Outbuilding - £9,766

Build a Mansard loft conversion - £51,766

Loft conversion - £31,560

Build a kitchen extension - £41,766

Hip to gable loft conversion - £41,766

Granny annexe - £86,766

Garden office - £9,766

Convert a Garage - £15,766

Garage - £18,266

Build a flat roof extension - £21,766

Build a dormer loft conversion - £41,766

Concrete foundations - £6,016

Convert a bungalow loft - £28,766

Convert a basement - £34,872