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Experienced extension builder ready to quote for your work. HB Construction is the best extension builder in SG5. No obligation free quotes and man...
Need an Extension Builder in SG5? WILLMOTT DIXON CONSTRUCTION LI has been helping local clients (20 mile radius) with their extension buildering jo...
Need an Extension Builder in SG5? M SPINDLER CONSTRUCTION LTD has been helping local clients (20 mile radius) with their extension buildering jobs ...
From £37,575
M P BUILDING LIMITED is an established and experienced local extension builder in SG5. Please contact us for a free, no obligation quote and compet...
From £30,975
Need an Extension Builder in SG5? L P L Property Services Limited has been helping local clients (20 mile radius) with their extension buildering j...
From £37,125
Experienced extension builder ready to quote for your work. Specialist Building Refurbishm is the best extension builder in SG5. No obligation free...
From £36,825
Our building services company David Douglas Developments has over 30 years’ experience, and built an established reputation of providing customer...
From £36,450
Realise Your Luxury Dream Home With The Design And Build Partner You Can Trust.At MG Design & Build we have over 25 years of experience in the cons...
From £35,325
Need an Extension Builder in SG5? Gilbert & Gregson Construction Ltd has been helping local clients (20 mile radius) with their extension builderin...
From £34,950
Draincall Services Ltd is a trusted extension builder serving customers in SG5 and the surrounding area. Contact us to today to get a competitive q...

Comparing extension builders estimates for Loft conversion gives you an idea of who will be better value but the best way to compare costs is to get actual quotes.
What to do - Get rates and quotes for the cost of a loft conversion in SG5 by posting your job to extension builders in SG5.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Loft Conversion near Letchworth | £44 | £283 |
| Loft Conversion near North Hertfordshire | £44 | £283 |
| Loft Conversion near Hitchin | £43 | £283 |
| Loft Conversion near Stevenage | £44 | £282 |
| Loft Conversion near Biggleswade | £41 | £268 |
| Loft Conversion near Mid Bedfordshire | £42 | £276 |
| Loft Conversion near Luton | £42 | £279 |
| Loft Conversion near Ampthill | £38 | £258 |
| Loft Conversion near Harpenden | £45 | £282 |
| Loft Conversion near East Hertfordshire | £44 | £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 - £17,746

Two storey extension - £88,370

Build a timber frame extension - £26,246

Build a swimming pool - £81,246

Single storey extension - £59,928

Side return extension - £44,272

Install an RSJ - £2,446

Outbuilding - £10,246

Build a Mansard loft conversion - £52,246

Loft conversion - £36,060

Build a kitchen extension - £42,246

Hip to gable loft conversion - £42,246

Granny annexe - £87,246

Garden office - £10,246

Convert a Garage - £16,246

Garage - £18,746

Build a flat roof extension - £22,246

Build a dormer loft conversion - £42,246

Concrete foundations - £6,496

Convert a bungalow loft - £29,246

Convert a basement - £40,272