New-build loft insulation in Portstewart
Portstewart is inside the area we cover in County Londonderry. For trade loft insulation we provide per-plot pricing to your specification.
That includes addresses in BT55 and BT56. The local authority is Causeway Coast and Glens.

Where we work around Portstewart
Portstewart sits about 27 miles from Derry/Londonderry, measured in a straight line.
Other towns close by include Coleraine and Limavady.
| Postcode districts | BT55, BT56 |
|---|---|
| Council area | Causeway Coast and Glens |
| County or area | County Londonderry |
How does trade loft insulation work?
For new dwellings and extensions, the insulation has to match the design that achieved compliance, so we work from your SAP or U-value calculation and the specified product. We can install between and over the ceiling ties, fit eaves ventilation trays and loft hatches, and leave a boarded access route to services. More about trade loft insulation.
- Eaves trays and hatch upstands
- Supply and fit to your specification
- Photo evidence for building control
Why book with us in Portstewart
Works to your programme
We price per plot and fit around your build programme and site rules.
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.
Clear contact details
Your quote says who to call with questions before, during and after the work.
Tidy work
Dust sheets on the route in and every bit of packaging taken away.
How much does trade loft insulation cost in Portstewart?
Trade prices are shown before any VAT. Work on new dwellings is normally zero-rated; extensions and refurbishment are normally standard-rated, and the construction reverse charge may apply. Each quote shows the VAT treatment.
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 trade loft insulation in Portstewart
Do you cover all of BT55?
Yes, we cover the BT55 postcode district and the districts around Portstewart.
Will I get a written quote for work in Portstewart?
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 Portstewart?
Not normally. Our guide prices include normal travel to Portstewart. If an address needs a ferry or an unusually long journey, we tell you the cost before you book.
Which products do you fit?
Whatever the specification calls for, usually mineral wool rolls or loose fill, so the as-built matches the SAP calculation.
Can you provide photos for building control?
Yes. Every stage is photographed, and depth is recorded against the specification.
