Loft and cavity wall insulation · East of England
Loft and cavity wall insulation in Hertsmere
Social landlords in Hertsmere can use us for insulation top-ups and for extracting failed cavity fill that is causing damp.
Social landlords in Hertsmere can appoint us for loft and cavity wall insulation, from a single home to a programme. Most social homes in Hertsmere belong to housing associations after the council transferred its stock. We work to the Decent Homes Standard and to your own specification.
Hertsmere at a glance
- Council
- Hertsmere Borough Council
- Region
- East of England
- County
- Hertfordshire
- Council homes
- Transferred to housing associations
- Housing standard
- Decent Homes Standard (England)
- Damp and mould timescales
- Awaab's Law (since 27 Oct 2025)
- Population
- 105,471 (2020 estimate)
- Regional price factor
- 1.04 (our estimate)
Council housing status from Housing Revenue Account records (MHCLG and the 2012 HRA list, updated for later transfers) and council publications, checked October 2026. Population: ONS 2020 mid-year estimate.
Who owns the social homes in Hertsmere?
Most social homes in Hertsmere are owned by housing associations, following the transfer of the council's homes to housing association ownership. Hertsmere Borough Council remains the strategic housing authority, with duties on homelessness and housing need.
What do we cover in Hertsmere?
- Cavity wall insulation injection
- Extraction of failed or unsuitable cavity fill
- Loft insulation top-ups to current recommended depths
- Boarded walkways, hatch insulation and draught-proofing
- Pipe and tank insulation

How do we deliver it?
Where we extract failed fill, we inspect the wall ties and the cavity while it is open and report what we find.
Which rules apply in Hertsmere?
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.
Decent Homes Standard (England) · More about loft and cavity wall insulation
What does loft and cavity wall insulation cost in Hertsmere?
Our guide range for cavity wall insulation in Hertsmere is £1,000–£2,800 per home. That is the UK range of £950–£2,700 (published figure) adjusted by a regional cost factor of 1.04 (our own estimate); 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.
Questions about loft and cavity wall insulation in Hertsmere
Does Hertsmere Borough Council still own council homes?
Most social homes in Hertsmere are owned by housing associations, following the transfer of the council's homes to housing association ownership. Hertsmere Borough Council remains the strategic housing authority, with duties on homelessness and housing need.
Which housing standard applies in Hertsmere?
Social homes in England must meet the Decent Homes Standard, enforced through the Regulator of Social Housing's Safety and Quality Standard. A reformed standard, confirmed in January 2026, must be met by 2035 at the latest.
Do you also work near Hertsmere?
Yes. We take on loft and cavity wall insulation across the East of England, including Barnet, Watford, Harrow and St Albans, and in every other UK nation.
Other works we carry out in Hertsmere
- Communal area refurbishment
- Estate and external works
- Kitchen replacement programmes
- Supported and sheltered housing refurbishment
- Bathroom replacement programmes
- Cyclical and external decoration
- Acquisition and temporary accommodation refurbishment
- Void property works
- Whole-house retrofit
- Fire stopping and compartmentation
- Electrical remedial works and rewires
- Brickwork, pointing and render repairs