Solid wall insulation · Hampshire
Solid wall insulation in Waterlooville
From Waterlooville to Havant, we price solid wall insulation after a measured survey — no guesswork, and no work starts until the price is agreed in writing. On solid-walled houses in Waterlooville, the gable or the most weather-exposed wall is often the place to start.
- Free survey in PO7 and nearby
- Guide price from £75 per m² + scaffold, 0% VAT
- Fixed written price before work starts
Free survey in Waterlooville
Postcode, service and a phone number is all we need.
What you get
- Breathable options for stone and lime-mortared walls
- External insulation keeps room sizes and treats cold bridges well
- In England and Wales, Building Regulations apply when more than half of a wall is treated
- Both can be done in stages, elevation by elevation or room by room

Before we quote in Waterlooville
Surveys in Waterlooville also cover the surrounding PO7 district and towns such as Havant and Portsmouth. Waterlooville sits around 16 miles from Southampton. Homes across the South East range from inter-war semis and post-war estates, which are mostly cavity-walled, to older solid-walled cottages and Victorian town terraces.
Exposure to wind-driven rain varies across Hampshire: sheltered town streets fare better than walls on high ground or facing the prevailing weather, and the render, beads and cill details are chosen with that in mind.
For Waterlooville homeowners weighing external against internal insulation, the survey sets out both with prices.
- Postcode district
- PO7
- County or area
- Hampshire
- Nation
- England
- Nearby
- Havant, Portsmouth, Fareham, Gosport
England: planning and regulations
Planning in Waterlooville follows England's national rules: similar-looking finishes on houses are usually permitted, while flats, commercial premises, conservation areas and streets under an Article 4 direction need an application.
Insulating or re-rendering more than half of a wall's area brings in Part L of the Building Regulations, so building control is notified and the wall is upgraded to about 0.30 W/m²K where practical.
External or internal — which is better?
External insulation keeps the wall warm, reduces cold bridging at floors and party walls, renews the outside, and doesn't shrink rooms — but it changes the look and needs scaffolding. Internal insulation keeps the façade unchanged and can be done room by room, but loses 50–100mm of floor space per wall and needs careful detailing to avoid condensation at joists and corners.
Solid wall insulation prices in Waterlooville
| Item | Guide price | Notes |
|---|---|---|
| External (EWI) | £105–£210 per m²0% VAT | By board and finish |
| Internal (IWI) | £75–£130 per m²0% VAT | Plus making good |
| Survey and written recommendation | Free with a quote |
Confirmed by a fixed written quote after survey. 0% VAT: installing insulation in a home is zero-rated until 31 March 2027, so these figures are the total; 5% applies from 1 April 2027.
What happens next
Enquiry
Send your postcode and a few details.
Measured survey
Walls, damp, eaves, cills and services recorded.
Written price
A fixed price with the specification attached.
Work and handover
Installed, inspected and documents handed over.
Solid wall insulation in Waterlooville: questions
Is solid wall insulation worth it?
For many solid-walled homes it's one of the biggest single improvements to comfort, because the walls are often the largest heat-loss area. Savings depend on the home and heating, so we don't promise a figure.
Does solid wall insulation cause condensation?
It can if detailed poorly, particularly internally. A condensation risk check for the proposed build-up and careful detailing at joists, reveals and corners avoid it.
Can I do one wall at a time?
Yes. Many owners start with the coldest or most exposed elevation, often a gable end.
Do you cover Waterlooville?
Yes — we survey and quote solid wall insulation in Waterlooville (PO7) and nearby Havant, Portsmouth and Fareham, with a fixed written price before any work starts.