Bailey Construction Services are here to help customers who need an Extension Builder in Lyndhurst. We offer a competitive rate to complete all you...
Trowel On is an established extension buildering business in Lyndhurst. We come highly recommended and provide competitive quotes for your work.
The business offers a full design service for both kitchens and bathrooms.We work with you to make the best use of your space and find prod...
Shy Browm
Experienced extension builder ready to quote for your work. Shay building LTD is the best extension builder in Lyndhurst. No obligation free quotes...
GDS Building & Maintenance Ltd is an established and experienced local extension builder in Lyndhurst. Please contact us for a free, no obligation ...
From £16,788
James Golby
All our work carries a life time guarantee , If we did it and you have a problem we want to know about it. Not the bloke in the pub or your next do...
From £17,428
Relax... you have found a reliable extension builder in Lyndhurst. 1st Oak Building Preservation & Maintenance is a friendly and reliable company b...
From £17,404
Clever Build & Design is an established extension buildering business in Lyndhurst. We come highly recommended and provide competitive quotes for y...
From £17,612
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...

Underpinning ranges from £16,788 (James Golby Construction based in SO51) to £17,684 (Novare Plumbing Ltd based in SO51), but the final cost will depend on the method of underpinning used, how much of your foundations need underpinning and where you live.
Comparing extension builders estimates for underpinning gives you an idea of who will be better value but the best way to compare costs is to get actual quotes.
Get quotes to underpin your home in Lyndhurst by posting a job with HaMuch and we will send it to extension builders in Lyndhurst.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Underpin A Building near New Forest | £32 | £245 |
| Underpin A Building near Totton | £34 | £243 |
| Underpin A Building near Southampton | £34 | £243 |
| Underpin A Building near Romsey | £32 | £230 |
| Underpin A Building near Eastleigh | £34 | £244 |
| Underpin A Building near Chandler's Ford | £34 | £245 |
| Underpin A Building near Christchurch | £36 | £251 |
| Underpin A Building near Hedge End | £34 | £244 |
| Underpin A Building near Locks Heath | £33 | £240 |
| Underpin A Building near Salisbury | £35 | £247 |
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 - £17,444

Two storey extension - £87,916

Build a timber frame extension - £25,944

Build a swimming pool - £80,944

Single storey extension - £53,880

Side return extension - £40,870

Install an RSJ - £2,144

Outbuilding - £9,944

Build a Mansard loft conversion - £51,944

Loft conversion - £33,225

Build a kitchen extension - £41,944

Hip to gable loft conversion - £41,944

Granny annexe - £86,944

Garden office - £9,944

Convert a Garage - £15,944

Garage - £18,444

Build a flat roof extension - £21,944

Build a dormer loft conversion - £41,944

Concrete foundations - £6,194

Convert a bungalow loft - £28,944

Convert a basement - £36,870