From £17,772
Romsey, SO51
Ibcon Construction is an established and experienced local extension builder in Romsey. Please contact us for a free, no obligation quote and compe...
From £17,684
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...
From £17,412
Romsey, SO51
BUY BUILDER LTD is an established extension buildering business in Romsey. We come highly recommended and provide competitive quotes for your work....
From £17,460
Romsey, SO51
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £17,540
Experienced extension builder ready to quote for your work. Grant Construction is the best extension builder in Romsey. No obligation free quotes a...
From £17,404
Our building services company KT Carpentry & Building Services has been helping customers in Southampton, Winchester, Brockenhurst and Portsmouth b...
From £16,788
ROMSEY, SO51
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 £17,564
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £17,372
General Building Services (Southampton) Ltd is a trusted extension builder serving customers in Romsey and the surrounding area. Contact us to toda...
From £16,348
Romsey, SO51
We specialise in Epoxy Resin and Polyurethane floor coatings and screeds (very durable and seamless flooring), designed for retail, factories, manu...

Underpinning ranges from £16,348 (Floortrak Limited based in SO51) to £17,772 (Ibcon Construction 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 Romsey by posting a job with HaMuch and we will send it to extension builders in Romsey.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Underpin A Building near Romsey | £32 | £230 |
| Underpin A Building near Chandler's Ford | £34 | £245 |
| Underpin A Building near Totton | £34 | £243 |
| Underpin A Building near Eastleigh | £34 | £244 |
| Underpin A Building near Southampton | £34 | £243 |
| Underpin A Building near Test Valley | £37 | £261 |
| Underpin A Building near New Forest | £32 | £245 |
| Underpin A Building near Winchester | £37 | £266 |
| Underpin A Building near Hedge End | £34 | £244 |
| Underpin A Building near Locks Heath | £33 | £240 |
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 - £17,334

Two storey extension - £87,752

Build a timber frame extension - £25,834

Build a swimming pool - £80,834

Single storey extension - £51,688

Side return extension - £39,637

Install an RSJ - £2,034

Outbuilding - £9,834

Build a Mansard loft conversion - £51,834

Loft conversion - £32,198

Build a kitchen extension - £41,834

Hip to gable loft conversion - £41,834

Granny annexe - £86,834

Garden office - £9,834

Convert a Garage - £15,834

Garage - £18,334

Build a flat roof extension - £21,834

Build a dormer loft conversion - £41,834

Concrete foundations - £6,084

Convert a bungalow loft - £28,834

Convert a basement - £35,637