Herts Loft Ltd is an established extension buildering business in SG13. We come highly recommended and provide competitive quotes for your work.
Relax... you have found a reliable extension builder in SG13. Up and Out Builds Ltd is a friendly and reliable company based in SG13 who consider n...
From £87,424
Hopson Bros Services is a trusted extension builder serving customers in SG13 and the surrounding area. Contact us to today to get a competitive qu...
From £87,224
Experienced extension builder ready to quote for your work. Groome & Sons Ltd is the best extension builder in SG13. No obligation free quotes and ...
From £87,384
D E BRACKEN BUILDING SERVICES is an established and experienced local extension builder in SG13. Please contact us for a free, no obligation quote ...
From £87,160
R & T Complete Building Services is an established and experienced local extension builder in SG13. Please contact us for a free, no obligation quo...
From £87,352
Trusted and professional extension builder in SG13. Experienced in all extension buildering work and keeping within budget and on quote. J J Roofin...
From £87,272
Landmark General Builders Ltd are here to help customers who need an Extension Builder in SG13. We offer a competitive rate to complete all your ex...
From £87,128
Nicholas James Home Improvements Ltd are here to help customers who need an Extension Builder in SG13. We offer a competitive rate to complete all ...
From £87,000
Need to find an Extension Builder near you for all your extension buildering work?
J B R Contracts provides a local, trusted extension buil...

Building a granny annexe ranges from £87,000 (J B R Contracts based in SG14) to £87,456 (Up and Out Builds Ltd based in SG12), but these are just estimates that can help give you an idea of who will be better value in your area.
The best thing to do is to get quotes to build a granny annexe in SG13 by posting a job with HaMuch. We will send it to extension builders in SG13 who will be happy to help you.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Granny Annexe near Hertford | £46 | £290 |
| Granny Annexe near Ware | £47 | £296 |
| Granny Annexe near Hoddesdon | £46 | £296 |
| Granny Annexe near Welwyn Garden City | £42 | £269 |
| Granny Annexe near Cheshunt | £48 | £285 |
| Granny Annexe near Hatfield | £65 | £285 |
| Granny Annexe near East Hertfordshire | £44 | £289 |
| Granny Annexe near Potters Bar | £43 | £273 |
| Granny Annexe near Harlow | £43 | £288 |
| Granny Annexe near Epping Forest | £44 | £273 |
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 - £17,759

Two storey extension - £88,389

Build a timber frame extension - £26,259

Build a swimming pool - £81,259

Single storey extension - £60,184

Side return extension - £44,416

Install an RSJ - £2,459

Outbuilding - £10,259

Build a Mansard loft conversion - £52,259

Loft conversion - £36,180

Build a kitchen extension - £42,259

Hip to gable loft conversion - £42,259

Granny annexe - £87,259

Garden office - £10,259

Convert a Garage - £16,259

Garage - £18,759

Build a flat roof extension - £22,259

Build a dormer loft conversion - £42,259

Concrete foundations - £6,509

Convert a bungalow loft - £29,259

Convert a basement - £40,416