Where we work around St Albans

As the crow flies, St Albans is roughly 7 miles from Watford.

We also cover Harpenden, Hatfield, Hemel Hempstead and Welwyn Garden City.

Postcode districts	AL1, AL2, AL4, AL3
Council area	Hertfordshire
County or area	Hertfordshire

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.

Tank jacket and pipe lagging in the loft
Eaves ventilation kept clear
Gaps in the existing layer filled

Why book with us in St Albans

Eaves kept clear

Insulation is held back from the eaves so the loft can still ventilate.

We measure before we quote

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

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.

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 St Albans?

£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 St Albans

How soon can you visit a home in St Albans?

We call you back to agree a time that suits you, and confirm the date in writing. Availability changes week to week, so we will give you the earliest slot we have.

Will I get a written quote for work in St Albans?

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

Do you charge extra to travel to St Albans?

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

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.

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.

Loft insulation top-up in St Albans