Loft insulation top-up in Mid Glamorgan

Where we work around Mid Glamorgan

This takes in the Bridgend, Merthyr Tydfil and Rhondda Cynon Taf council areas.

That covers the CF postcode areas.

Councils	Bridgend, Merthyr Tydfil and Rhondda Cynon Taf
Postcode areas	CF
Towns listed	8

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 wet, dirty, matted or full of droppings, laying fresh wool on top just buries the problem, so we say so and price removal instead. More about a loft insulation top-up.

Depth check and photos before and after
Cross layer to a total of 270 to 300 mm
Gaps in the existing layer filled

Why book with us in Mid Glamorgan

Eaves kept clear

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

Downlights made safe

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

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.

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

£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). The Energy Saving Trust puts a typical professionally installed loft at about £750 from bare joists, or £600 to top up from 120 mm.

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.

Funding in Wales

Warm Homes Nest, run for the Welsh Government, offers free improvements to eligible low-income households.
ECO4, the energy supplier scheme, runs until 31 December 2026 for eligible households.
Check Nest's eligibility checker before agreeing to any funded offer.

Welsh Government: Warm Homes Nest

Questions about a loft insulation top-up in Mid Glamorgan

Which council covers my address in Mid Glamorgan?

Councils in Mid Glamorgan include Bridgend, Merthyr Tydfil and Rhondda Cynon Taf. Your council matters for building control questions and some funding schemes.

Can you quote for several properties in Mid Glamorgan?

Yes. Landlords and agents can send a list of addresses and we will survey them in as few visits as we can.

Can new insulation go on top of old insulation?

Yes, if the old layer is dry, clean and reasonably even. If it is damp, contaminated or badly compressed we recommend removing it first.

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.