Where we work around Merthyr Tydfil

Merthyr Tydfil sits about 7 miles from Rhondda, measured in a straight line.

We also cover Aberdare, Rhondda, Tonypandy and Pontypridd.

Postcode districts	CF47, CF48
Council area	Merthyr Tydfil
County or area	Mid Glamorgan

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
Depth check and photos before and after
Cross layer to a total of 270 to 300 mm

Why book with us in Merthyr Tydfil

Photos of the finished loft

You see the work done without climbing the ladder.

We measure before we quote

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

Tidy work

Dust sheets on the route in and every bit of packaging taken away.

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 Merthyr Tydfil?

£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 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.

Questions about a loft insulation top-up in Merthyr Tydfil

Will I get a written quote for work in Merthyr Tydfil?

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

How do I pay for work in Merthyr Tydfil?

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

Is loft work in Merthyr Tydfil different from anywhere else?

The method is the same, but older terraces, cottages and newer estates each have their own quirks: lath ceilings, low pitches or trussed roofs. We plan for the loft we find.

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.

Loft insulation top-up in Merthyr Tydfil