Loft insulation top-up in East Sussex

Where we work around East Sussex

We work across the East Sussex and Brighton and Hove council areas.

Postcode areas: BN, RH and TN.

Councils	East Sussex and Brighton and Hove
Postcode areas	BN, RH, TN
Towns listed	12

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 wet, dirty, matted or full of droppings, laying fresh wool on top just buries the problem, so we say so and price removal instead. More about a loft insulation top-up.

Depth check and photos before and after
Eaves ventilation kept clear
Cross layer to a total of 270 to 300 mm

Why book with us in East Sussex

Downlights made safe

Fire-rated covers or a clear zone around recessed lights.

Photos of the finished loft

You see the work done without climbing the ladder.

Clear contact details

Your quote says who to call with questions before, during and after the work.

Plain-English advice

We explain what we find in plain English, and say so when nothing needs doing.

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

£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). The Energy Saving Trust puts a typical professionally installed loft at about £750 from bare joists, or £600 to top up from 120 mm.

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.

Funding in England

ECO4, the energy supplier scheme, runs until 31 December 2026 for eligible households, with no supplier scheme to follow it.
The Great British Insulation Scheme closed on 31 March 2026.
The Warm Homes Plan, announced in January 2026, funds upgrades for low-income households, including through councils under Warm Homes: Local Grant.
Check what is open for your address on GOV.UK before agreeing to any funded offer.

GOV.UK: find ways to save energy in your home

Questions about a loft insulation top-up in East Sussex

Which council covers my address in East Sussex?

Councils in East Sussex include East Sussex and Brighton and Hove. Your council matters for building control questions and some funding schemes.

Are your prices the same across East Sussex?

Yes. Our guide prices are the same everywhere we work, and they include normal travel. Your fixed price depends on your loft, not your postcode.

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.

Can new insulation go on top of old insulation?

Yes, if the old layer is dry, clean and reasonably even. If it is damp, contaminated or badly compressed we recommend removing it first.