Barnet's housing runs from Victorian and Edwardian terraces in New Barnet and Chipping Barnet to the broad 1930s semis that line much of the borough — a large share built before cavity walls became standard.
Solid-wall homes in Barnet are among the harder properties to keep warm, because the brick has no cavity to trap heat. External wall insulation tackles that directly, adding an insulating render system to the outside that warms the walls, cuts heat loss and updates the look of the house.
EWI is a continuous insulating layer fixed to the outside of your home, finished with a weatherproof render. Because it sits outside, your rooms keep their floor space, and the masonry stays warmer.
We don't quote specific savings figures — your surveyor explains what results are realistic for your property.
A real surveyor visits, measures up and checks wall build-up, damp risks, access and planning context. You receive an itemised written quote covering the system, render type, detailing and scaffolding. We install boards, reinforcing mesh and render with a daily clean-down, then finish with inspection, sign-off and warranty paperwork.
The 1930s semis that line the Northern line corridor through Woodside Park, Whetstone and Totteridge are classic EWI candidates: solid nine-inch brick, timber-framed bays and a rendered or tile-hung first floor that is often ready for renewal. The detailing around those bays, and around the side returns many of these houses gained later, is where a job is won or lost.
One honest caveat: Hampstead Garden Suburb falls inside the borough, and external changes there are tightly controlled by the Hampstead Garden Suburb Trust. Street-facing EWI is rarely realistic in the Suburb, and we say so at survey rather than after a refused application. The Victorian terraces of New Barnet and Chipping Barnet carry no such restriction on most streets.
We cover Chipping Barnet, New Barnet, High Barnet, Whetstone, Totteridge and nearby EN and N postcodes, specialising in older solid-wall and period homes.
Yes — for the better. You choose the render colour and texture, and we detail the windows, sills and eaves so the finish looks deliberate and well-kept, not bolted on.
Usually not on visible elevations, because the Trust's rules on external alterations are strict. The survey will tell you plainly what is realistic for your house rather than talking you into a doomed application.
We specialise in solid-wall and period homes across London and surrounding areas, including:
One short form. One real surveyor. Zero pressure.