Preparing Your RV for Summer: Essential Maintenance Tips
RV Summer Maintenance Washington | Mobile RV Service along Washington’s I-5 Corridor
Summer’s calling—are you ready to roll? Before you hit the open road to chase 70 or park beachside for the season, your RV needs eyes on it. Skipping summer prep can turn your relaxing getaway into a roadside repair situation which is not cheap.
Here’s a breakdown of the must-do RV summer maintenance tasks we recommend for Washington RVers. Whether you’re a weekend warrior or a full-timer cruising by the PNW, these tips will help keep you moving without issue.
1. Inspect and Reseal the Roof
Water leaks don’t take summer off. UV rays can crack and dry out sealants fast, especially on TPO or EPDM roofs.
Clean the roof (carefully)
Inspect all sealants around vents, skylights, AC units
Reseal with RV-specific lap sealant if needed
Put 303 Aerospace Protectant on plastic components.. Your skylights, AC covers and vent lids if you want UV protection on these roof fixtures.
One heavy rain can cost thousands if you don’t catch it. Stay ahead of it. If you suspect water damage, we are happy to take a look for you if you’re in the area.
2. Check A/C and Ventilation
Don’t wait for a 95-degree day to realize your AC isn’t blowing cold.
Clean or replace air filters (thicker filters will cause the AC to run harder)
Test the unit and thermostat function before you leave on a trip. Use a thermometer in the cold air vent, you should see a 15-20 degree difference on average from the ambient temperature outside.
Consider an AC soft start for smoother operation long term
If your rooftop AC is dead or weak, we can swap it roadside or at your site.
3. Flush and Sanitize the Fresh Water System
That funky taste? Probably from water left in the lines over winter… Just a PSA, we don’t recommend drinking your RV’s water (if at all possible.)
Sanitize with diluted bleach or RV-specific sanitizer
Run the solution through the system and rinse thoroughly
Replace any leaky hoses or cracked fittings, including silicon compression cone washers.
Want a crisp clean taste all summer? Install an inline water filter before your city water inlet. This makes a huge difference. Water filtration systems are also possible if you would like.
4. Inspect Tires and Brake Components
Summer heat expands air pressure and exposes weak spots in old rubber. Check all your tires, RV, trailer, tow vehicle etc.
Check tire pressure and tread
Look for sidewall cracking or dry rot.
Cracks in between tread the tread pattern.
If you have grease-able bearings and can’t recall when they were last repacked, it would be a good idea to schedule a bearing repack with us.
Blowouts on I-5 are no joke. You risk thousands in damage if your tire damages your fiberglass during a blow-out, not to mention the cost of time and money if your trip is delayed.. then there is the repair cost. Schedule a tire check and bearing repack before your trip.
5. Test Propane and Appliances
Safety first—always test your propane lines for leaks using soapy water.
Verify propane level
Check for leaks at connections
Test each appliance (fridge, stove, furnace—even if it’s summer!)
Keep a working carbon monoxide and propane detector onboard at all times.
We Come to You
Let us handle the dirty work so you can focus on the adventure. Whether you're parked in Bellingham, Everett, or Skagit County, we come to you for mobile RV maintenance and repairs—no waiting rooms, no dealerships, just professional service at your site. We are 5 star rated on google and warranty our repairs.
