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Select your affordable N19 extension builder
SJ Expert Building Services are here to help customers who need an Extension Builder in N19. We offer a competitive rate to complete all your exten...
SLS BUILDERS LIMITED is a trusted extension builder serving customers in N19 and the surrounding area. Contact us to today to get a competitive quo...
Darren Bergin
Relax... you have found a reliable extension builder in N19. First guard Roofing is a friendly and reliable company based in N19 who consider no jo...
Andreas Thomas Demetri is a trusted extension builder serving customers in N19 and the surrounding area. Contact us to today to get a competitive q...
DLER SINGH D S BUILDERS are here to help customers who need an Extension Builder in N19. We offer a competitive rate to complete all your extension...
From £16,344
Need an Extension Builder in N19? BM Lofts Limited has been helping local clients (5 mile radius) with their extension buildering jobs for many yea...
From £16,256
Michael Collins Builders are experts in domestic conversions and extensions - drawing on over 25 years experience in the trade. We have built up a ...
From £16,040
Maddison & sons pride ourselves on attention to detail at the highest level.With an extensive background As Mains Contractors in construction fabri...
From £16,136
Our building services company Brothers Group have been helping customers in North, East and West London and the surrounding area by providing profe...

Garage conversions in N19 typically range from £15,976 (SLS BUILDERS LIMITED based in NW5) to £16,344 (BM Lofts Limited based in N4), but the only way to get an accurate cost for your specific project is to get quotes.
Post a job with HaMuch and we'll send it to extension builders in N19 who will be happy to help.
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 - £17,645

Two storey extension - £88,217

Build a timber frame extension - £26,145

Build a swimming pool - £81,145

Single storey extension - £57,896

Side return extension - £43,129

Install an RSJ - £2,345

Outbuilding - £10,145

Build a Mansard loft conversion - £52,145

Loft conversion - £35,108

Build a kitchen extension - £42,145

Hip to gable loft conversion - £42,145

Granny annexe - £87,145

Garden office - £10,145

Convert a Garage - £16,145

Garage - £18,645

Build a flat roof extension - £22,145

Build a dormer loft conversion - £42,145

Concrete foundations - £6,395

Convert a bungalow loft - £29,145

Convert a basement - £39,129