Loft insulation in Gelligaer
Gelligaer is part of the area we cover in Gwent. For loft insulation, you get a free survey and a fixed written quote.
We cover the CF82, CF81 and NP12 postcode districts, in the Caerphilly council area.

Where we work around Gelligaer
As the crow flies, Gelligaer is roughly 12 miles from Newport (Gwent).
We also cover Blackwood, Caerphilly, Tredegar and Risca.
| Postcode districts | CF82, CF81, NP12 |
|---|---|
| Council area | Caerphilly |
| County or area | Gwent |
What is loft insulation?
We lay the first layer to the depth of the joists, usually 100 mm, so it fills each bay edge to edge with no gaps. The finished depth sits at 270 mm or more, the depth the Energy Saving Trust recommends. More about loft insulation.
- Tank jacket and pipe lagging in the loft
- Eaves kept clear, with ventilation trays where air could be blocked
- Waste packaging removed
Why book with us in Gelligaer
No pressure selling
You get everything in writing and decide in your own time.
Tidy work
Dust sheets on the route in and every bit of packaging taken away.
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.
Boarding done properly
Storage boards go on loft legs, never straight onto the insulation.
How much does loft insulation cost in Gelligaer?
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).
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 loft insulation in Gelligaer
Can a landlord in Gelligaer book work for a tenanted house?
Yes. We can arrange access with the tenant directly and send you photos once the work is finished.
Is loft work in Gelligaer 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 you visit Gelligaer outside working hours?
Ask about early, late or weekend appointments when you get in touch, and we will tell you honestly what we can offer.
Will loft insulation make my loft colder?
Yes, and that is expected. The insulation keeps the heat in the rooms below, so the loft above runs closer to the outdoor temperature. That is why pipes and the tank are lagged as part of the job.
Does loft insulation need building control approval?
On its own it usually does not, but the work still has to meet the energy standard. The rules differ across England, Wales, Scotland and Northern Ireland, so we confirm the position for your address on the quote.
Loft insulation in other towns
Other loft work in Gelligaer
- Loft insulation top-up in Gelligaer From £395
- Loft boarding in Gelligaer From £695
- Insulated loft hatches in Gelligaer From £245
- Pipe and tank lagging in Gelligaer From £95
- Period home loft insulation in Gelligaer From £995
- Loft ladder fitting in Gelligaer From £295
- Blown loft insulation in Gelligaer From £595
