Free Insulation for Park Homes
Park homes (also known as mobile homes or residential park homes) are some of the hardest homes to heat in the UK. Their lightweight construction means heat escapes rapidly through thin walls, floors, and roofs. The good news: ECO4 now covers park homes, providing free insulation specifically designed for these structures — and if you don't claim benefits, the LA Flex route can still qualify you.
Insulation is just one part of the picture. For heating, boiler upgrades, cladding and solar too, see our full guide to government grants for park homes.
| Insulation Type | What It Does | Typical Savings |
|---|---|---|
| External wall cladding | Rigid insulation boards + weather-resistant cladding fitted to outside walls | £200-£400/year |
| Floor insulation | Insulation fitted beneath the park home's suspended floor | £100-£200/year |
| Roof insulation | Over-roof system or insulation above existing ceiling | £100-£200/year |
Why Park Homes Need Specialist Insulation
Park homes are fundamentally different from brick-built houses. Standard insulation methods don't work. Here are the unique challenges:
- Single-skin walls — park homes have thin walls with no cavity, so cavity wall insulation is impossible
- Suspended floors — the floor sits above the ground on a chassis, with cold air circulating underneath
- Lightweight roofs — minimal insulation in the original construction, often just a thin layer
- Thermal bridging — the metal chassis and frame conduct cold into the home
- Condensation risk — poor insulation causes warm air to meet cold surfaces, creating damp and mould
- Structural weight limits — insulation must be lightweight to avoid overloading the structure
ECO4 installers who specialise in park homes use approved insulation systems engineered specifically for lightweight timber and metal construction. These are not the same products used in brick-built houses.
External Wall Cladding
External wall cladding is the most impactful insulation measure for park homes. The process involves:
- Fitting rigid insulation boards to the outside of the existing walls
- Covering the insulation with weather-resistant cladding (typically PVC or composite)
- Sealing all joints to prevent draughts and moisture ingress
- Improving the appearance of the park home (many residents say it looks brand new)
External cladding typically takes 3-5 days to install and can reduce wall heat loss by up to 50%. It also provides an additional layer of weather protection.
Floor Insulation
Park home floors lose significant heat because they're suspended above the ground. Floor insulation involves fitting rigid insulation boards or spray foam to the underside of the floor. Skirting around the base of the park home is also improved to reduce cold air circulation underneath.
Important: There are approximately 85,000 park homes in England alone, and most were built before modern insulation standards. If your park home was built before 2005, it almost certainly qualifies for insulation improvements under ECO4.
Roof Insulation
Park home roofs are often the weakest point for heat loss. Two main approaches are used:
- Over-roof system — a new insulated roof built over the existing one, creating an air gap and adding significant insulation
- Internal ceiling insulation — insulation added above the existing ceiling (reduces room height slightly)
An over-roof system is generally preferred because it also provides better waterproofing and doesn't reduce internal space.
Park home insulation methods compared
Because a park home can't take standard cavity or loft insulation, installers use three specialist methods. Here's how they compare at a glance:
| Method | How it's fitted | Best for |
|---|---|---|
| External wall wrap (cladding) | Rigid insulation boards fixed to the outside of the walls, then finished with weather-resistant PVC or composite cladding | The biggest single improvement — thin single-skin walls losing heat |
| Floor insulation | Insulation fitted to the underside of the suspended floor, with skirting improved around the base to cut the airflow underneath | Cold floors and draughts rising from beneath the home |
| Roof insulation | An over-roof system built above the existing roof, or insulation added above the ceiling | Heat lost through a lightweight, poorly insulated roof |
Most park homes benefit from all three fitted together as a package, which is how ECO4 usually funds the work — as a whole-home upgrade rather than a single measure.
Who Qualifies for Free Park Home Insulation?
You qualify for free park home insulation through ECO4 if you receive a qualifying benefit:
- Pension Credit (Guarantee or Savings Credit)
- Universal Credit
- Income Support
- Housing Benefit
- Income-based JSA or income-related ESA
- Child Tax Credit (income below £16,480)
- Working Tax Credit (income below £16,480)
Through GBIS, park homes in council tax band energy grants A-D can qualify for free insulation with no benefits requirement.
Site Owner Permission
If you own your park home but rent the pitch, you will typically need the site owner's permission for external work such as wall cladding and over-roof systems. Most site owners are happy to agree because insulation improves the appearance and value of homes on their site. The ECO4 installer will handle the consent process for you.
Grants vs paying for park home insulation yourself
Specialist park-home insulation is not cheap to buy privately, because the products and fitting are engineered for lightweight construction. If you qualify for a grant, the difference is stark:
| Route | What you pay | Worth knowing |
|---|---|---|
| ECO4 or LA Flex grant | £0 for qualifying households | Fully funded external cladding, floor and roof insulation; the installer arranges the park-home assessment and site-owner consent |
| Warm Homes: Local Grant | £0 for eligible lower-income households (England) | Council-run; can cover insulation and heating together; runs to March 2028 |
| Paying privately | The full installed cost | No eligibility test and you choose the timing, but you fund the whole specialist system yourself |
For most park home residents on a qualifying benefit or a low income, the grant route is the obvious choice — you get the same specialist work at no cost. If you're not sure which schemes you qualify for, see the full guide to government grants for park homes, or check your eligibility below.