From £22,016
Relax... you have found a reliable extension builder in Southwold. Aldeburgh Landscaping is a friendly and reliable company based in Southwold who ...
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 £22,024
Reapy property management carry out the following: - Brick / block work - Foundations - Underground drainage - Soft and hard lands...
From £21,472
Experienced extension builder ready to quote for your work. K & M Property Maintenance is the best extension builder in Southwold. No obligation fr...
From £21,560
Garden Wall & Building Specialists is an established and experienced local extension builder in Southwold. Please contact us for a free, no obligat...
From £22,072
S R BUILDERS is an established extension buildering business in Southwold. We come highly recommended and provide competitive quotes for your work....
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 £21,648
Need to find an Extension Builder near you for all your extension buildering work?
Home & Garden Services provides a local, trusted extensi...

A flat roof extension ranges from the cheapest of £21,472 (K & M Property Maintenance based in NR31) to the dearest of £22,072 (S R BUILDERS based in NR31), 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 Southwold by posting a job with HaMuch. We'll send it to extension builders in Southwold.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Build A Flat Roof Extension near Waveney | £24 | £200 |
| Build A Flat Roof Extension near Lowestoft | £24 | £197 |
| Build A Flat Roof Extension near Gorleston-on-Sea | £25 | £205 |
| Build A Flat Roof Extension near Suffolk Coastal | £28 | £215 |
| Build A Flat Roof Extension near Great Yarmouth | £13 | £132 |
| Build A Flat Roof Extension near Norwich | £25 | £200 |
| Build A Flat Roof Extension near Stowmarket | £30 | £221 |
| Build A Flat Roof Extension near Felixstowe | £31 | £231 |
| Build A Flat Roof Extension near Ipswich | £33 | £235 |
| Build A Flat Roof Extension near Harwich | £34 | £248 |
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 - £17,258

Two storey extension - £87,636

Build a timber frame extension - £25,758

Build a swimming pool - £80,758

Single storey extension - £50,152

Side return extension - £38,773

Install an RSJ - £1,958

Outbuilding - £9,758

Build a Mansard loft conversion - £51,758

Loft conversion - £31,478

Build a kitchen extension - £41,758

Hip to gable loft conversion - £41,758

Granny annexe - £86,758

Garden office - £9,758

Convert a Garage - £15,758

Garage - £18,258

Build a flat roof extension - £21,758

Build a dormer loft conversion - £41,758

Concrete foundations - £6,008

Convert a bungalow loft - £28,758

Convert a basement - £34,773