The 10 builders from Google's results for Barnet, ranked on Google rating, online presence and other factors. Updated 10 September 2026.
on GoogleHadley, Barnet
JB Construction Barnet Ltd carries out property refurbishments, garage conversions, and home improvements across Hadley, Barnet, and North London. The team fits new kitchens and bathrooms as well as providing landscaping services for domestic properties.
07932 071440 169 High St, Hadley, Barnet EN5 5SU
on GoogleBarnet
Designplus Build provides loft conversions, house extensions and kitchen remodelling in Barnet, Finchley, Edgware and Golders Green. The construction team also undertakes complete property refurbishments across Mill Hill and Hendon.
on GoogleLondon
Alstruct Ltd provides house extensions, loft conversions and basement conversions for homeowners in Chiswick and West London. Its services also include groundworks, full property renovations and garden landscaping.
020 8080 8240 15B Raven Rd, London E18 1HB
on GooglePopes Dr, London
LCCL Construction is a design and build company converting lofts, extending houses and renovating homes across East London. It works in areas such as Hackney, Walthamstow, Leyton and Bow, where much of the housing is Victorian terraces, and provides architectural design as part of its service.
020 8037 7332 3rd Floor, Hathaway House, Popes Dr, London N3 1QF
on GoogleLondon
Pro Gressivedesign London constructs residential properties and carries out building projects across Barnet and Greater London. Working directly with clients and project professionals, the company focuses on individual home construction and detailed building work.
01923 865118 18 Totteridge Village, London N20 8JP
on GoogleAbridge, London
Nilo Construction builds home extensions across North and West London. The firm constructs rear, side, and double-storey additions to create extra living space for residential properties.
07539 757211 1 Church Ln, Abridge, London RM4 1AH
on GoogleLondon
Barnet Builders handles property refurbishments across Southgate, Cockfosters, Barnet and Finchley. Its construction team carries out house updates ranging from single room modifications to full home transformations for local residents.
0800 006 2000 119 Finchley Park, London N12 9JJ
on GoogleBethnal Green, London
Recommended Builders In Cambridge 2026 is a building firm based in Bethnal Green, London.
020 8003 2856 148 Cambridge Heath Rd, Bethnal Green, London E1 5QJ
Barnet
Plus Rooms provides house and kitchen extension services to homeowners in Richmond-upon-Thames and across South West London. The company manages projects from design through to construction, handling planning regulatory requirements along the way. Its team also builds loft conversions.
Barnet
Bn Building constructs house extensions, converts lofts and manages property renovations across Barnet. The company works on home updates and structural alterations to help property owners alter their living spaces.
In Barnet, small structural job typically costs £1,700 – £6,000. Labour in Greater London runs 16% above the UK median, which accounts for most of the difference from the same job elsewhere.
These are the firms from Google's results for "builders barnet". They are ranked on Google rating, online presence and other factors.
The figures above are Barnet ranges. These explain what drives them, so you can read a quote properly.
Per-square-metre rates for light, standard and full renovations, prices job by job, rates by region, and the VAT, fees and contingency that sit on top of the build.
2026 prices for single and double garage conversions by garage type and room, what a quote should include, the fees and VAT around the build, and the rules in each UK nation.
Which jobs are notifiable, how the application routes work, what building control inspects, and what a completion certificate is worth when you come to sell.
For anything over about £10,000, yes. The JCT Home Owner contract is short, plain English and free to buy. It fixes the payment schedule and the process if things go wrong, which is exactly what an informal arrangement does not.
Materials up front is reasonable. A large percentage of the total is not. Stage payments against completed work are the norm, and a firm insisting on 50% before starting is a warning sign.