Loft insulation top-up in Southampton

Looking for a loft insulation top-up in Southampton? We cover Southampton and the rest of Hampshire, with a free survey and a fixed written quote.

We cover the SO14, SO15 and SO17 postcode districts, in the Southampton council area.

Guide price £395 to £545 Southampton, Hampshire

Where we work around Southampton

We work in neighbouring Hythe, Totton, Hedge End and Eastleigh too.

Postcode districts	SO14, SO15, SO17, SO19
Council area	Southampton
County or area	Hampshire

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.

Gaps in the existing layer filled
Depth check and photos before and after
Tank jacket and pipe lagging in the loft

Why book with us in Southampton

We measure before we quote

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

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.

Downlights made safe

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

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

£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 Southampton

Will I get a written quote for work in Southampton?

Yes. Every quote is in writing with the work, the price and what is included, so you can compare it properly.

Do you cover all of SO14?

Yes, we cover the SO14 postcode district and the districts around Southampton.

Is loft work in Southampton different from anywhere else?

The method is the same, but older terraces, cottages and newer estates each have their own quirks: lath ceilings, low pitches or trussed roofs. We plan for the loft we find.

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.

Can I still store things in the loft after a top-up?

Not directly on the insulation. A 270 mm layer stands well above the joists, so storage needs raised boarding on loft legs.