How to Winterize Your RV in BC: Top Tips From the BCRV Experts

By: BCRV Sales   |   30 Oct 2026
rv in the winter fields

Summer adventures might be over, but there's still one important job left before putting your RV away for the season: winterization!

Between freezing temperatures, heavy rainfall, and unpredictable mountain weather, British Columbia winters can be tough on recreational vehicles. Without proper preparation, your RV could face frozen plumbing, water damage, battery problems, and costly repairs.

At BCRV Sales in Chilliwack, we help RV owners throughout Abbotsford, Hope, Mission, and the Fraser Valley protect their investments year-round.

Not sure where to start? Here are our top tips for getting your RV winter-ready!

1. Drain and Protect Your RV's Plumbing System

Water damage is one of the biggest risks of storing an RV through winter.

When water freezes inside plumbing lines, fittings, pumps, or tanks, it expands and can cause cracks or leaks.

Start by draining your fresh water tank, grey water tank, black water tank, and water heater according to your RV manufacturer's instructions.

Next, protect the plumbing using the winterization method specified for your RV. This may involve compressed air, RV-specific antifreeze, or a combination of both.

Remember to protect faucets, showerheads, toilets, outside showers, and other plumbing fixtures.

Important: Never use automotive antifreeze in your RV's drinking-water system. Only use products specifically approved for RV potable-water plumbing.

If you're unsure about the process, our RV service department in Chilliwack offers professional winterization to help prevent expensive freeze damage.

2. Inspect Your Roof, Windows, and Exterior Seals

Winter in the Fraser Valley isn't just about cold temperatures. It's also about rain!

Even small gaps around roof vents, windows, doors, and exterior seams can allow moisture into your RV.

Before storing your unit, inspect:

  • Roof seams and sealant.
  • Windows and door seals.
  • Skylights and roof vents.
  • Exterior compartments.

Slide-out seals and weatherstripping.

Look for cracking, peeling sealant, water stains, or signs of moisture intrusion.

If repairs are needed, use sealants approved for your RV's roofing and exterior materials.

Our technicians can also assist with roof repairs and maintenance to help protect your RV from BC's wet winter weather.

3. Prepare Your RV Battery for Storage

Cold weather and extended periods of inactivity can take a toll on RV batteries.

Before storage, fully charge your battery and follow the manufacturer's recommendations for disconnecting, removing, or maintaining it.

Depending on your battery type, a compatible maintenance charger may help prevent discharge.

If removing the battery, store it somewhere dry and protected from extreme temperatures, following the manufacturer's safety instructions.

Lithium batteries require particular attention because charging restrictions can apply in freezing conditions.

For owners who enjoy travelling beyond the Fraser Valley, our RV dealership near Hope, BC page also highlights the importance of choosing and maintaining RVs suited to mountain conditions.

4. Clean Your RV Inside and Out

Nobody wants to open their RV in spring and discover unpleasant odours, mould, or unwanted visitors!

Before storage, give the interior a thorough cleaning.

Remove food, toiletries, garbage, and anything that might attract rodents. Wipe down countertops, clean appliances, vacuum upholstery, and empty the refrigerator.

Leave the fridge and freezer doors slightly open after cleaning and drying them.

Outside, wash away road grime, dirt, and debris. Pay particular attention to the roof, awnings, wheel wells, and undercarriage.

Allow everything to dry thoroughly before covering or closing your RV for the season.

Schedule a Winterization

5. Prevent Moisture, Mould, and Pest Problems

BC's damp winter climate makes moisture management especially important.

Use RV-compatible moisture absorbers or a suitable dehumidification method, and check the unit periodically during storage.

Inspect openings around plumbing, wiring, storage compartments, and the undercarriage for potential pest entry points.

Seal gaps using appropriate materials without obstructing required ventilation.

You should also remove bedding, cushions, and fabrics that could trap moisture, or store them according to your RV's recommendations.

Whether you own a motorhome or a travel trailer, these precautions can help prevent unpleasant surprises in spring.

6. Check Tires, Brakes, and Storage Conditions

Your RV's tires need attention even when you're not travelling!

Inflate tires according to the manufacturer's storage recommendations and inspect them for damage or unusual wear.

Choose a firm, level storage surface whenever possible, and use appropriate wheel chocks.

Avoid relying solely on the parking brake during extended storage without checking your RV manufacturer's guidance.

If storing outdoors, consider UV-resistant tire covers and an RV cover designed for your particular unit.

Owners shopping for their next RV can also explore our RV selection near Abbotsford, including models with features suited to extended-season travel.

7. Don't Forget Propane and Safety Equipment

Before winter storage, turn off propane appliances and secure the propane supply according to your RV manufacturer's instructions.

Inspect accessible hoses and connections for visible damage, but leave propane repairs and pressure testing to qualified professionals.

Check smoke alarms, carbon monoxide detectors, and fire extinguishers.

For motorhomes, follow the chassis manufacturer's fuel, fluid, and engine-storage recommendations as well.

These simple checks help keep your RV ready for safe use when camping season returns.

8. Schedule Professional RV Winterization in Chilliwack

Winterizing an RV involves more than draining a few tanks.

Different RVs have different plumbing layouts, appliances, heating systems, and storage requirements. Missing even one component could lead to expensive damage.

At BCRV Sales, our Red Seal-certified technicians provide professional winterization, seasonal inspections, repairs, and parts support.

Whether you're preparing a fifth wheel, motorhome, truck camper, or travel trailer, our team can help.

We proudly serve RV owners from Chilliwack, Abbotsford, Hope, Mission, Agassiz, and surrounding BC communities.

Get Winter-Ready With BCRV Sales!

Proper winterization protects your RV, reduces the risk of costly repairs, and makes getting back on the road easier when spring arrives.

Don't wait for the first hard freeze to start preparing!

Visit BCRV Sales' service centre at 40990 Yale Road, Chilliwack, BC, or call (604) 823-4848 to discuss your winterization needs.

Ready to book an appointment? Contact BCRV Sales today!

Protect your RV this winter so you're ready for every adventure ahead!

Schedule a Winterization

 

 

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