Where we work around Clapham

Clapham sits about 3 miles from central London, measured in a straight line.

We work in neighbouring Battersea, Brixton, Chelsea and Streatham too.

Postcode districts	SW4, SW8, SW11, SW2
County or area	Greater London

What is a loft insulation top-up?

Before we quote we measure the existing layer in several places and check its condition. If it is dry, even and not contaminated, we keep it and lay the top-up across it at right angles. More about a loft insulation top-up.

Cross layer to a total of 270 to 300 mm
Eaves ventilation kept clear
Tank jacket and pipe lagging in the loft

Why book with us in Clapham

Honest about grants

If you might qualify for funding, we tell you before we quote.

Tidy work

Dust sheets on the route in and every bit of packaging taken away.

Fixed written price

The price on the quote is the price you pay. It only changes if you change the job, or if we find something hidden, such as rot, and you agree the change in writing first.

We measure before we quote

Existing depth, joist spacing, wiring and the tank are checked, not guessed.

How much does a loft insulation top-up cost in Clapham?

£395 to £545Terraced house, average loft, topping up from about 100 mm. Free survey and a fixed written quote before any work.

Installing insulation in a home is zero-rated for VAT until 31 March 2027 and 5% after that, under HMRC's rules for energy-saving materials (notice 708/6).

Work out a guide price for your loft

Building regulations in England

In England, a loft insulated across more than half its area should reach a U-value of 0.16 W/m²K. Insulation alone is not usually notified to building control. How the rules work across the UK.

Questions about a loft insulation top-up in Clapham

Do you cover all of SW4?

Yes, we cover the SW4 postcode district and the districts around Clapham.

Do you charge extra to travel to Clapham?

Not normally. Our guide prices include normal travel to Clapham. If an address needs a ferry or an unusually long journey, we tell you the cost before you book.

Can a landlord in Clapham book work for a tenanted house?

Yes. We can arrange access with the tenant directly and send you photos once the work is finished.

Which way should the top-up layer run?

Across the joists, at right angles to the first layer. That covers the tops of the joists, which otherwise let heat escape along the timber.

Is it worth topping up 100 mm of loft insulation?

Often, if the existing layer is in good condition and you also want a warmer house or a better EPC. On bill savings alone, a top-up from about 100 mm takes decades to pay back, so the case is strongest when it is done alongside other loft work.

Loft insulation top-up in Clapham