Static caravan maintenance splits into two jobs: watching for problems before they get expensive, and doing the small, regular tasks that keep your holiday home in good condition. Skip both and British weather will find the gaps, mostly through damp, a stressed chassis, or a gas appliance nobody's checked in years.
This guide covers what falls to you as the owner and what your park operator handles, from routine cleaning through to winterising your caravan and keeping it safe to use. Treat it as a working checklist rather than a one-off read.
Key takeaways
- General upkeep, cleaning, vents, gas and electrical checks, is mostly common sense, but skipping it is where costly problems start.
- Condensation and damp are the biggest year-round risk to a static caravan's structure and value.
- Gas and electrical safety checks are a legal requirement if you let your caravan out, and good practice even if you don't.
- Draining down properly before winter prevents the single most expensive repair: burst pipes.
General Static Caravan Maintenance
Most static caravan maintenance is simple and doesn't take much time, provided you stay ahead of it. These are the basics worth doing year-round; winterising gets its own section further down.
- Keep it clean. A damp, warm cloth around the exterior stops debris building up and causing damage.
- Open windows and doors regularly. Static caravans get stuffy fast, and moving air helps control damp. Lock up whenever you leave, even for a few minutes.
- Clear fallen leaves. Left on the roof, they hold moisture and damage the roofing membrane.
- Service the boiler every three years, and turn it off when the caravan is empty.
- Manage your vents. Close air vents when the caravan is unoccupied, but leave wall and floor vents open to keep air circulating and reduce damp. Keep them clear of obstructions.
- Leave the fridge freezer door open when it's switched off, to stop mould growing inside.
- Turn off gas and electricity when the caravan isn't in use. Ask your park operator about annual safety check fees.
The same advice applies before a storm. Secure anything that isn't fixed down, and check your guttering and roof once it passes.
Maintenance schedule at a glance
A quick reference for how often the main jobs need doing, and whose job it usually is.
| Task | How often | Usually your job or the park's? |
|---|---|---|
| Exterior clean and gutter check | Every 1 to 3 months | You |
| Chassis inspection (rust, corrosion, fixings) | Annually | You, or a contractor the park recommends |
| Gas safety check | Annually | You arrange; park may require proof |
| Electrical (PAT) testing | Annually | You arrange; park may require proof |
| Ventilation and damp check | Monthly, more in winter | You |
| Draining down for winter | Once, before you leave for the season | Either; many parks offer this as a paid service |
| Snow and ice clearance at your pitch | As needed | You (park keeps access routes clear) |
Does a Static Caravan Chassis Need Maintenance?
Every static caravan sits on a chassis, usually galvanised, painted, or a mix of both. Check it regularly for rust and damage. Galvanised chassis hold up best against corrosion, and it's worth paying for galvanisation upfront if you have the choice.
Routine chassis maintenance means paint spraying plus regular oiling and greasing to keep it stable. Watch for loosening, corrosion or rust, and lubricate the corner steadies, hitch head, jockey wheel and wheels. Chassis damage isn't always obvious, so it pays to look closely rather than glance.
If you're unsure what to check, ask your park operator. They can often point you to a local contractor who sprays, oils and lubricates chassis professionally, and it's a quick job once you know what you're doing.
Damp, Condensation and Moisture
Condensation is the biggest recurring problem static caravan owners face, especially in winter when the inside of your caravan is warmer than the walls outside. Warm, moist air meets a cold surface and turns to water, which is why windows fog up first.
It doesn't take much to produce it. A family of four in a typical three-bedroom house generates around 14 litres of water vapour a week just from cooking, washing, bathing and breathing. In a space as compact as a static caravan, that moisture has nowhere to go unless you help it out.
Left unchecked, condensation turns into mould and mildew, most often in corners, ceilings, window frames and cupboards you don't check often. Beyond the cosmetic damage, mould spores can trigger sinus problems, bronchitis and skin irritation, and are a particular risk if anyone in the caravan has asthma.
Leaks and Poor Drainage: The Other Sources of Damp
Condensation isn't the only source of moisture. Leaks through the roof, walls or floor, caused by wear, poor construction, or storm damage, are just as likely to cause damp if they go unnoticed. Inspect your caravan regularly for signs of damage and check the seals around doors and windows stay tight.
Poor drainage around the caravan matters too. If water can't drain away from the base, it pools against the foundation and works its way in. Make sure your caravan sits level and that drainage around the pitch is adequate, and raise it with your park operator if water is collecting where it shouldn't.
How to Prevent Condensation
- Ventilate well. Open windows and roof vents whenever you can, especially after returning from time away, and fit window restrictors if you want to ventilate securely.
- Use extractor fans. Run bathroom and kitchen extractors during and after cooking or showering, and leave them on a few minutes longer than feels necessary.
- Wipe down wet surfaces as soon as you notice them, rather than waiting for mould to take hold.
- Don't dry clothes indoors, and make sure your tumble dryer vents outside.
- Cover pans while cooking and let your heating warm the caravan gradually rather than blasting it.
- Use a dehumidifier, or bowls of salt or cat litter as a low-cost alternative moisture trap.
- Check your insulation and glazing are up to standard, particularly on older models.
Caravans built to the residential BS3632 standard are designed for year-round use and generally manage condensation better, since they're built with fuller insulation and ventilation. Caravans built to the European EN1647 standard are intended for seasonal use only, so expect more condensation if you use one outside the main season.
Gas and Electrical Safety
Gas and electrical safety matters whether you use the caravan yourself or let it out. Static caravans are compact, which raises the risk if something does go wrong, so it's worth treating safety checks as non-negotiable rather than optional extras.
Fit smoke alarms and test them regularly, and keep a fire blanket and extinguisher on site for small fires. If a fire takes hold, get everyone out immediately and call emergency services rather than trying to fight it yourself.
Fit a carbon monoxide alarm too. CO is odourless and dangerous, and an alarm is the only reliable way to catch a leak early. Never adjust your caravan's ventilation or flues yourself; leave that to your park operator or a Gas Safe registered engineer.
Annual Checks and Letting Requirements
Arrange a gas safety check every year, typically around £100, covering your appliances and flues. If you let your caravan out, you're legally required to give tenants a valid gas safety certificate, either before their stay or within 28 days of the check.
Electrical safety works the same way. PAT testing your appliances annually is standard practice, and becomes a legal requirement the moment you let the caravan to anyone. Keep flammable items away from heaters and electrical units, avoid overloading sockets, and unplug anything showing signs of overheating or damaged cabling immediately.
Winterising Your Static Caravan (Draining Down)
Whether you're leaving your caravan for the winter or keeping it on-site, draining down is the single most important job on this list. It involves switching off and clearing any water left in your systems before you go, and it's what stands between you and a burst pipe.
Some park operators will drain your caravan down for a fee; ask what's included before you decide whether to do it yourself. If you do it yourself, switch off all water and gas supplies first, then open your external drainage plugs. Leave any self-contained central heating system alone unless you know what you're doing. Finish by draining all remaining water from the caravan completely.
Snow, Ice and Other Winter Checks
Clearing snow and ice from your own pitch is your responsibility, though the park must keep access routes safe under UK law. It's worth paying for extra winter cover from your park if it's offered.
Before you leave for the season: secure loose items, clean the exterior, and check decking or skirting for anything that needs fixing. Lock up properly, and consider putting valuables like TVs into storage rather than leaving them on show. If you can, ask a neighbour on the park to keep an eye on your caravan while you're away.
A thorough check every few months is what stands between a static caravan that lasts twenty years and one that needs a new chassis at ten. Most of the expensive repairs we see start as something small nobody looked at.
— Justin Allitt, Sell My Group
Static Caravan Maintenance: The Bottom Line
None of this takes much time once it's a habit. Stay on top of general upkeep, keep moisture under control, treat gas and electrical safety as essential rather than optional, and drain down properly every winter. Do that, and you'll get a longer lifespan out of your static caravan and fewer surprises along the way. If you're ever unsure, your park operator is the first person to ask.
Book a gas safety check and PAT test every year, and inspect the chassis, roof and seals at least once a year too. General cleaning and vent checks are best done every one to three months.
You need one if you let the caravan to tenants, either before their stay or within 28 days of the check. If you only use it yourself, it isn't a legal requirement, but an annual check is still strongly recommended.
Ventilate well, run extractor fans when cooking or showering, wipe down wet surfaces promptly, and use a dehumidifier through the colder months. Check your insulation and glazing too if the caravan is an older model.
It's switching off your water and gas supplies and clearing any water left in the caravan's systems before winter, to stop pipes freezing and bursting while you're away.
Most of it, yes. General cleaning, vent checks and basic inspections don't need a professional. Gas and electrical safety checks should always go to a qualified, Gas Safe registered engineer or electrician.