Loft insulation in St Albans
We cover St Albans and the surrounding area for every kind of loft insulation job.
We cover postcodes including AL1, AL2 and AL4, in the Hertfordshire council area.
Loft services in St Albans
Insulate the loft
- Loft insulation in St Albans From £495
- Loft insulation top-up in St Albans From £395
- Blown loft insulation in St Albans From £595
- Natural loft insulation in St Albans From £995
- Rafter insulation in St Albans From £1,645
- Room-in-roof insulation in St Albans From £3,995
Boarding, hatches and ladders
- Loft boarding in St Albans From £695
- Insulated loft hatches in St Albans From £245
- Loft ladder fitting in St Albans From £295
Remove and replace
Ventilation and frost protection
- Loft ventilation in St Albans From £245
- Loft condensation investigation in St Albans From £145
- Pipe and tank lagging in St Albans From £95
Surveys and funding checks
- Loft insulation survey in St Albans From £95
- Thermal imaging survey in St Albans From £165
- Loft insulation grants check in St Albans No charge
Homes and buildings
Where we work around St Albans
As the crow flies, St Albans is roughly 7 miles from Watford.
We work in neighbouring Harpenden, Hatfield, Hemel Hempstead and Welwyn Garden City too.
| Postcode districts | AL1, AL2, AL4, AL3 |
|---|---|
| Council area | Hertfordshire |
| County or area | Hertfordshire |
Loft insulation in other towns
Building regulations in England
Insulating a loft is treated as renovating a thermal element when more than half of the ceiling area is insulated. Approved Document L sets a target U-value of 0.16 W/m²K, which is around 250 to 300 mm of mineral wool. Loft insulation on its own usually does not need a building notice, but it still has to meet that standard. Rafter insulation that forms part of a loft conversion is notifiable building work.
Funding in England
- ECO4, the energy supplier scheme, runs until 31 December 2026 for eligible households, with no supplier scheme to follow it.
- The Great British Insulation Scheme closed on 31 March 2026.
- The Warm Homes Plan, announced in January 2026, funds upgrades for low-income households, including through councils under Warm Homes: Local Grant.
- Check what is open for your address on GOV.UK before agreeing to any funded offer.
GOV.UK: find ways to save energy in your home
The Energy Saving Trust puts a typical professionally installed loft at about £750 from bare joists, or £600 to top up from 120 mm.
Questions about loft insulation in St Albans
Can you visit St Albans 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.
How soon can you visit a home in St Albans?
We call you back to agree a time that suits you, and confirm the date in writing. Availability changes week to week, so we will give you the earliest slot we have.
Do you charge extra to travel to St Albans?
Not normally. Our guide prices include normal travel to St Albans. If an address needs a ferry or an unusually long journey, we tell you the cost before you book.
What do I need to do before you arrive in St Albans?
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.
