Samuele Paolini
Need an Extension Builder in Sandridge? Samuele Paolini has been helping local clients (5 mile radius) with their extension buildering jobs for ma...
Torrington Design
NIECEIC / NAAPIT GASSAFE WATER REGULATIONS We offer services towards completion of high end construction projects to dis...
"Did callout made safe my elctrical work thanks" - reviewed 16/05/23, REECYRUSSO
Ali Alagoz
Propello is an established and experienced local extension builder in Sandridge. Please contact us for a free, no obligation quote and competitive...
Rafal Szczepanski
Our homes need to be regularly maintained and from time to time they need to be rejuvenated, modernised and enhanced. When it comes to building wor...
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
Bill Matharu
Matharu Buildings is an established extension buildering business in Sandridge. We come highly recommended and provide competitive quotes for your ...
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
Edmond Begu
EB Construction & Building Ltd are here to help customers who need an Extension Builder in Sandridge. We offer a competitive rate to complete all y...
Relax... you have found a reliable extension builder in Sandridge. M & A UK Ltd is a friendly and reliable company based in Sandridge who consider ...

A flat roof extension ranges from the cheapest of £22,000 (EB Construction & Building Ltd based in HP2) to the dearest of £23,584 (Propello based in E17), 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 Sandridge by posting a job with HaMuch. We'll send it to extension builders in Sandridge.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Build A Flat Roof Extension near St Albans | £63 | £288 |
| Build A Flat Roof Extension near Hatfield | £64 | £283 |
| Build A Flat Roof Extension near Harpenden | £86 | £315 |
| Build A Flat Roof Extension near Welwyn Garden City | £42 | £268 |
| Build A Flat Roof Extension near Potters Bar | £43 | £273 |
| Build A Flat Roof Extension near Borehamwood | £42 | £270 |
| Build A Flat Roof Extension near Hemel Hempstead | £42 | £270 |
| Build A Flat Roof Extension near Dacorum | £42 | £269 |
| Build A Flat Roof Extension near Bushey | £42 | £276 |
| Build A Flat Roof Extension near Hertford | £46 | £289 |
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 - £17,909

Two storey extension - £88,613

Build a timber frame extension - £26,409

Build a swimming pool - £81,409

Single storey extension - £63,176

Side return extension - £46,099

Install an RSJ - £2,609

Outbuilding - £10,409

Build a Mansard loft conversion - £52,409

Loft conversion - £37,583

Build a kitchen extension - £42,409

Hip to gable loft conversion - £42,409

Granny annexe - £87,409

Garden office - £10,409

Convert a Garage - £16,409

Garage - £18,909

Build a flat roof extension - £22,409

Build a dormer loft conversion - £42,409

Concrete foundations - £6,659

Convert a bungalow loft - £29,409

Convert a basement - £42,099