Insulation, solar and EV charging in Havant
Havant borough runs from the Emsworth shoreline up through Bedhampton, Leigh Park and Waterlooville to the edge of the South Downs. It is twenty-five minutes from our yard along the A27, and it contains one of the largest post-war housing estates in the south of England.
Havant's housing and what goes wrong with it
Leigh Park was built by Portsmouth City Council from the late 1940s to the 1970s to rehouse families from the bombed city, and at its peak it was one of the biggest council estates in Europe. Thousands of those houses are now privately owned, nearly all cavity-walled, and a great many were filled with mineral wool under the schemes of the 2000s. Fifteen years on, the pattern we see is slumped fibre with cold voids at the top of the walls and damp at the base, and mould in the north-facing bedrooms.
Waterlooville, Cowplain, Purbrook and Horndean grew through the 1960s to 1980s as private estates, with 50mm to 75mm cavities and generally better brickwork. Emsworth and Bedhampton have older cores with some solid-walled Victorian stock near the harbour, and the shoreline houses take serious wind-driven rain off Chichester Harbour.
Lofts across the borough are often still at the original depth, and Leigh Park's shallow-pitched roofs make eaves ventilation a frequent problem once insulation is added, which is why we fit eaves trays on every job there.
What Havant homes typically need
- Cavity wall insulation removal across Leigh Park, Bedhampton and the Emsworth shoreline.
- Bonded bead re-insulation for houses whose walls are sound once the old fill is out.
- Loft insulation and ventilation in Leigh Park and Waterlooville.
- Solar panels on the big, simple roofs of Waterlooville and Horndean detached houses.
Typical Havant houses and what we usually look for
This is general local knowledge about the houses, not a list of finished jobs.
1950s to 70s semis in Leigh Park
Cavity walls, many filled in the 2000s. We look for slumped fibre and mould in the north-facing bedrooms.
1960s bungalows in Bedhampton and Waterlooville
Big lofts that are often thin, and a good fit for topping up.
Detached houses in Horndean and Cowplain
Large, simple roofs that suit solar and a battery.
Grants in Havant
Havant Borough Council is part of the Portsmouth-led consortium that runs the Warm Homes: Local Grant locally as Warmer Homes, operated by Agility Eco. It is currently oversubscribed, with a waiting list. 598 Havant postcodes are on the government's eligible list, concentrated in PO9 5, PO9 4 and PO7 8, which covers a lot of Leigh Park. If you bought your Leigh Park house under right to buy and it is rated EPC D to G, you may well qualify. We have applied to join the Warmer Homes installer network and are not confirmed on it yet.
Warm Homes: Local Grant guideNow open
Warm Homes Loan — solar and battery finance
The Warm Homes Loan Scheme opened on 27 October 2026. It gives homeowners a lower-interest loan — up to £15,000 for solar panels and a further £15,000 for battery storage. No means test. We provide the written MCS quote a lender needs; you apply to a participating lender and we install once funding is confirmed.
Get a lender-ready quoteHavant FAQs
How do I book a survey in Havant?
Call 0800 7022181 or book online and we will arrange a time that suits you. The survey is free.
Which Havant estates have cavity walls?
Leigh Park, Warren Park, West Leigh, Bedhampton's post-war streets, and almost all of Waterlooville, Cowplain, Purbrook and Horndean. The older parts of Havant town centre and Emsworth near the harbour are sometimes solid.