Where we work around Portstewart

Portstewart sits about 27 miles from Derry/Londonderry, measured in a straight line.

We work in neighbouring Coleraine and Limavady too.

Postcode districts	BT55, BT56
Council area	Causeway Coast and Glens
County or area	County Londonderry

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
Tank jacket and pipe lagging in the loft
Eaves ventilation kept clear

Why book with us in Portstewart

Downlights made safe

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

Eaves kept clear

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

Plain-English advice

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

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.

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

£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 Northern Ireland

Northern Ireland has its own Building Regulations, with energy guidance in Technical Booklet F1. Upgrading loft insulation may count as a thermal alteration, so check with your council's building control. How the rules work across the UK.

Questions about a loft insulation top-up in Portstewart

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

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

Do you cover all of BT55?

Yes, we cover the BT55 postcode district and the districts around Portstewart.

How do I pay for work in Portstewart?

Payment terms are set out on your quote. We never ask for payment on the doorstep or in cash.

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 Portstewart