Builders across North London & Hertfordshire
Kev Construct is based in Edgware, Middlesex, and builds loft conversions, house extensions, renovations, kitchens, bathrooms and external wall insulation across North London and the neighbouring Hertfordshire towns. From our HA8 base we cover Enfield, Barnet, Watford, Harrow, Southgate, Finchley, Potters Bar and St Albans - helping local homeowners create the space their family needs without moving home, rated 9.67/10 across 50+ verified Checkatrade reviews.
A local team, rarely more than a short drive from your door
We work across a compact, well-connected patch of North London and south Hertfordshire, so our team is rarely more than a short drive from your door. Being genuinely local matters on a building project: it means we can pop round for the free home visit, keep to the agreed programme, and be on hand quickly if you have a question once the work is underway. John runs the sites, Marian sets out clear quotes with no hidden fees, and Dan and Niko lead the build.
Choose your town below to see the services we offer there, the kinds of local projects we take on, and how to book your free home visit. Wherever you are within our area, you get the same fixed-price approach and the same tidy, respectful team on site.
Builders across North London & south Hertfordshire
From our Edgware base we regularly work across the N, NW, EN, HA, WD and AL postcodes and the boroughs in between. Tell us your postcode when you call and we will confirm straight away and book a free home visit.
Edgware
Our registered office is 116 Littlefield Road, HA8 0TF, and most of our work sits within a short radius of it. Loft conversions, rear extensions, full renovations and external insulation across HA8 and neighbouring HA7.
North London
Victorian terraces, 1930s semis and post-war family homes. Recent work includes a rear kitchen extension on a 1930s semi, a dormer loft adding a fourth bedroom, and full ground-floor renovations - much of it repeat and referral.
Enfield
Edwardian villas, inter-war semis and newer estates. Dormer and hip-to-gable lofts are especially popular here, alongside rear extensions, whole-house refurbishments and complete kitchen and bathroom fit-outs.
Barnet
A high-value area of larger family homes where lofts and extensions often pay for themselves. Box-dormer and mansard conversions, double-storey side extensions and careful whole-house renovations across High Barnet, New Barnet, Whetstone and Totteridge.
Watford
Our proven external wall insulation and rendering specialism - with recent 10/10 verified reviews for EWI and render in WD18 and WD24 - plus extensions, renovations and loft conversions across the WD postcodes.
Harrow
From Wealdstone terraces to larger homes around Harrow on the Hill. Dormer and hip-to-gable lofts, rear extensions, full kitchen and bathroom refits, and external insulation - just next door to our recent Wembley (HA0) refurbishment.
Southgate
Southgate's distinctive 1930s Metro-land semis suit extending and converting particularly well. Hip-to-gable and rear-dormer lofts, side-return kitchen extensions and sympathetic refurbishments around Oakwood and New Southgate.
Finchley
Edwardian terraces, 1930s semis and larger detached homes across Finchley Central, East Finchley and North Finchley. Dormer and mansard lofts, side-return kitchen extensions and high-standard bathroom refurbishments.
Potters Bar
Roomy semis and detached family homes on larger plots - ideal for a generous extension. Single and double-storey extensions, dormer lofts and full downstairs renovations across EN6 and the south Hertfordshire villages.
St Albans
Period cottages, Victorian villas and larger family homes where sympathetic work matters. Mansard, dormer and Velux lofts, rear kitchen extensions and careful renovations - like our recent plastering and flooring project just over in Welwyn (AL7).
Hertfordshire
Beyond Watford, Potters Bar and St Albans, we work out across south Hertfordshire from our Edgware base - extensions, renovations, loft conversions and external wall insulation for homeowners a short drive over the border.
One trusted local team for the whole project
Whichever town you are in, you only need one team. We handle everything from first drawing to final coat of paint, with a fixed price agreed in writing after a free home visit.
Loft conversions
Dormer, mansard, hip-to-gable and Velux - the quickest way to add a bedroom, ensuite or home office without extending your footprint.
House extensions
Single-storey, double-storey, rear and side-return builds that enlarge the kitchen and living space.
Home renovations
Full refurbishments and sympathetic period-property updates - plastering, flooring, decorating and reconfigured layouts.
Kitchens & bathrooms
Complete strip-out and refit to a high standard, as a standalone job or part of a larger build.
Building & EWI / rendering
External wall insulation and modern render finishes for a warmer, better-looking home with lower bills.
A builder your neighbours may already know
Kev Construct Ltd is a limited company (Company No. 12080875), rated 9.67/10 from 50+ verified reviews on Checkatrade, where we have been a member since 2019. Every project is covered by the £1,000 Checkatrade Guarantee and quoted at a fixed price, so you know the cost before we start.
We offer free estimates, undertake insurance work, and work on both domestic and commercial projects. Being local to Edgware means we are quick to visit, easy to reach throughout your project, and never far away if you have a question once the work is underway.
What our customers say.
“John and the whole crew were a pleasure to work with. Fast, great communication, finished on time and to a high quality.”
“Dan and Niko put real care into the work; Marian set everything out clearly with no hidden fees. They went above and beyond.”
“We're an architecture practice and have worked with Kev Construct for years. Reliable, trustworthy, excellent finishes.”
Ready to add the space
your family needs?
Tell us your postcode and what you have in mind, and we'll arrange a free home visit anywhere across our area. You'll get a clear, fixed price in writing - with no pressure and no hidden fees.
- Free home visit & survey across our area
- Fixed price in writing - no surprises
- Local Edgware team · rated 9.67/10 on Checkatrade
Prefer to talk? 07838 662 225