Rafter insulation in Sandown
We fit rafter insulation for homes in Sandown and across the Isle of Wight, starting with a free survey and a fixed written quote.
Postcode districts we cover here include PO36 and PO37, inside the Isle of Wight council area. The island is reached by ferry, so travel is priced separately and shown on the quote before you book.

Where we work around Sandown
Sandown is about 7 miles from Newport (Isle of Wight) as the crow flies.
We work in neighbouring Shanklin, Ryde, Newport (Isle of Wight) and Cowes too.
| Postcode districts | PO36, PO37 |
|---|---|
| Council area | Isle of Wight |
| County or area | Isle of Wight |
What is rafter insulation?
Because the whole roof slope, the gables and the party walls now have to be insulated, this costs much more than insulating the floor and saves less heat for the money. We check the roof underlay first: a breathable membrane and a felt with no ventilation gap need different build-ups to avoid condensation. More about rafter insulation.
- Insulated plasterboard lining where specified
- Vapour control layer where the design needs one
- Build-up designed for your type of roof underlay
Why book with us in Sandown
Clear contact details
Your quote says who to call with questions before, during and after the work.
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.
No pressure selling
You get everything in writing and decide in your own time.
Plain-English advice
We explain what we find in plain English, and say so when nothing needs doing.
How much does rafter insulation cost in Sandown?
Part of this work can be zero-rated as energy-saving materials until 31 March 2027, and part is standard-rated. If VAT applies, your quote shows which is which.
Building regulations in England
In England, a loft insulated across more than half its area should reach a U-value of 0.16 W/m²K. Insulation alone is not usually notified to building control. How the rules work across the UK.
Questions about rafter insulation in Sandown
Can a landlord in Sandown book work for a tenanted house?
Yes. We can arrange access with the tenant directly and send you photos once the work is finished.
Will I get a written quote for work in Sandown?
Yes. Every quote is in writing with the work, the price and what is included, so you can compare it properly.
What do I need to do before you arrive in Sandown?
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 insulating between the rafters better than the loft floor?
Not for saving energy alone. Insulating the floor heats less space and costs far less. Rafter insulation is the right answer when the loft itself needs to be warm.
Will it cause condensation?
It can if the build-up is wrong for the roof. Old bitumen felt needs a ventilation gap behind the insulation; a modern breathable membrane may not. We check before we design it.
