Where we work around Bangor, Gwynedd

Nearby, we also cover Llangefni and Caernarfon.

Postcode districts	LL59, LL57
Council area	Isle of Anglesey
County or area	Gwynedd

What is different about insulating a flat's loft?

In most leasehold flats the loft belongs to the freeholder, so the managing agent or freeholder must agree to the work. We can quote for a single flat or the whole block, and work to the managing agent's access and insurance requirements. More about loft insulation for a flat.

Single-flat or whole-block quotes
Photos and a completion note for the managing agent or factor
Fire compartment walls left intact

Why book with us in Bangor, Gwynedd

Plain-English advice

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

Tank and pipes protected

Every insulation job includes a tank jacket and pipe lagging, so nothing freezes in a colder loft.

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.

How much does loft insulation for a flat cost in Bangor, Gwynedd?

£495 to £845One top-floor flat, from bare joists. 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 Wales

Wales has its own Approved Document L. Insulation alone is not normally notified, but conversions need building control. How the rules work across the UK.

Rented homes

Privately rented homes in Wales fall under the same minimum energy efficiency rules as England: at least band E now, rising to band C for all tenancies in scope by 1 October 2030.

Questions about loft insulation for a flat in Bangor, Gwynedd

Do you charge extra to travel to Bangor, Gwynedd?

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

Can a landlord in Bangor, Gwynedd book work for a tenanted house?

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

What do I need to do before you arrive in Bangor, Gwynedd?

Clear a path to the hatch and, if you can, move stored items away from the area we will be working in. Tell us about anything heavy or fragile.

Is there VAT on loft insulation in flats?

Flats are residential, so installing insulation is zero-rated until 31 March 2027.

Who pays for loft insulation in a block of flats?

If the loft is common parts, the freeholder usually arranges it and recovers the cost through the service charge, according to the lease.

Loft insulation for flats in Bangor, Gwynedd