Loft and cavity wall insulation · England
Loft and cavity wall insulation in the North West
Social landlords in the North West can use us for insulation top-ups and for extracting failed cavity fill that is causing damp.
We take on loft and cavity wall insulation for social landlords across the North West: housing associations, councils, ALMOs and supported housing providers in all 35 council areas, to the rules that apply in England.
Where in the North West do we carry out loft and cavity wall insulation?
We cover every council area in the North West. Choose one to see who owns the social homes there and the local guide price.
- Blackburn with Darwen
- Blackpool
- Bolton
- Burnley
- Bury
- Cheshire East
- Cheshire West and Chester
- Chorley
- Cumberland
- Fylde
- Halton
- Hyndburn
- Knowsley
- Lancaster
- Liverpool
- Manchester
- Oldham
- Pendle
- Preston
- Ribble Valley
- Rochdale
- Rossendale
- Salford
- Sefton
- South Ribble
- St. Helens
- Stockport
- Tameside
- Trafford
- Warrington
- West Lancashire
- Westmorland and Furness
- Wigan
- Wirral
- Wyre
What is included?
- Cavity suitability survey, including borescope inspection
- Cavity wall insulation injection
- Boarded walkways, hatch insulation and draught-proofing
- Loft ventilation checks and remedial vents
- Pipe and tank insulation
Which rules apply in the North West?
PAS 2035:2023 sets the whole-house retrofit process (assessment, coordination, design, installation and evaluation), and PAS 2030:2023 covers installation. Most government-backed retrofit schemes require both, with TrustMark lodgement. We confirm in writing, before appointment, how each measure in your scope will meet those requirements.
What does it cost in the North West?
Our guide range for cavity wall insulation in the North West is £950–£2,750 per home. That is the UK range of £950–£2,700 (published figure) adjusted by a regional cost factor of 1.01 (VOA Rating Cost Guide 2026: 1.01–1.02); figures are before VAT where the source states it. Every job is priced after survey; specification, access and the condition of the homes will move the figure.
How do we deliver it?
Loft work includes checking that the eaves are still ventilating once the new insulation is down, because blocked eaves cause condensation in the roof space.
Common questions
Which council areas in the North West do you cover for loft and cavity wall insulation?
All 35: Blackburn with Darwen, Blackpool, Bolton, Burnley, Bury, Cheshire East, Cheshire West and Chester, Chorley, Cumberland, Fylde, Halton, Hyndburn, Knowsley, Lancaster, Liverpool, Manchester, Oldham, Pendle, Preston, Ribble Valley, Rochdale, Rossendale, Salford, Sefton, South Ribble, St. Helens, Stockport, Tameside, Trafford, Warrington, West Lancashire, Westmorland and Furness, Wigan, Wirral, Wyre.
Can you remove failed cavity insulation?
Yes. Extraction is common where old fill has become wet and is bridging damp to the inner wall.
How deep should loft insulation be?
Current guidance for most lofts is around 270mm of mineral wool, or equivalent, but your specification and funding scheme set the target.