Who we help · Flats and blocks of flats
Mid-rise block (11–18 m)
Usual measures: Non-combustible EWI (mineral wool), roof, windows. Watch-out: Fire risk appraisal of external walls (PAS 9980).
Priced after survey
Block of flats energy and fabric survey
From £1,500 per block
Whole-block survey, sample EPCs, options report for freeholders and leaseholders.
Start a block enquiryCredited against your works if you go ahead.
Read the full guide: Blocks of flats
Open the guideAt a glance
Construction, heat loss and watch-outs
- Typical construction
- Frame or masonry
- Where heat is lost
- Walls, roof, balconies
- Usual measures
- Non-combustible EWI (mineral wool), roof, windows
- Watch-outs
- Fire risk appraisal of external walls (PAS 9980)
Fire safety for this height
Blocks of 11–18 m follow Approved Document B and a fire risk appraisal of the external walls (PAS 9980). We use non-combustible mineral wool EWI.Leaseholder consultation
Section 20 consultation applies where any leaseholder will pay more than £250 towards the works. We provide costed options and resident information packs.Recommended
The insulation we usually recommend
External wall insulation (EWI)
A complete certified build-up of insulation board, mesh and render from one system holder.
Insulated cladding and EWI
Non-combustible mineral wool EWI and rainscreen systems.
Flat roof warm deck
PIR insulation over the deck with a new single-ply, GRP, EPDM or felt covering.
Fire-stopping and cavity barriers
Cavity barriers and fire-stopping installed with EWI, cavity and loft works.
Narrow and hard-to-treat cavities
Specialist bead or wool systems for narrow, stone-faced, exposed or high-rise cavities.
Funding for blocks
Whole-block works may be funded through the Warm Homes: Social Housing Fund for social landlords, ECO4 for eligible households while it's open, council schemes or landlord EPC C plans.Begin your project
Planning works on a block of flats?
Tell us about the building and we'll arrange the right survey, then a priced, phased proposal.