Pergolas are built to live outdoors, but sun, dust, rain and time all take a toll. Regular, simple maintenance keeps your structure safe and looking good.
Wood pergolas
- Clean annually: wash off dust, pollen and mildew with a gentle cleaner and soft brush. Avoid high-pressure washing that can damage wood fibers.
- Inspect the finish: when water stops beading or color fades, it’s time to re-seal or re-stain. Sun-exposed faces usually need attention first.
- Touch up paint: repaint areas where paint cracks or peels to keep moisture out.
- Check for damage: look for cracks, soft spots, insect activity and loose fasteners.
- Keep posts dry: make sure post bases keep wood off wet soil or concrete and that sprinklers don’t spray the structure constantly.
Aluminum pergolas
- Wash periodically with mild soap and water to remove dust and grime.
- Avoid abrasives that can scratch the powder coat.
- Check fasteners and connections once a year.
- Touch up scratches with manufacturer-recommended touch-up paint.
Louvered pergolas
- Clean blades and gutters regularly, especially under trees.
- Keep downspouts clear so water drains properly when blades are closed.
- Follow the manufacturer’s guidance for motors, sensors and seals, and keep warranty records.
All pergolas
- Check footings for movement or settling.
- Inspect add-ons like lights, fans and screens for wear and secure mounting.
- Manage plants: heavy vines add weight and hold moisture, so prune regularly.
- Look after electrical: have a licensed electrician address any damaged fixtures or wiring.
A simple seasonal routine
Spring: clean, inspect finish and fasteners. Summer: check sun-exposed surfaces. Fall: clear leaves from roofs and gutters. Winter: check drainage after storms.
Comparing materials? Read wood vs. aluminum pergolas.
Signs your pergola needs attention
- Water no longer beads on wood surfaces.
- Gray, faded or blotchy wood color.
- Cracks, splits or soft spots in posts or beams.
- Loose, rusted or missing fasteners.
- Posts that are no longer plumb, or footings that have shifted.
- Sagging string lights, screens or curtains.
- Gutters on louvered or solid roofs overflowing during rain.
Re-staining a wood pergola: the basics
- Clean the wood and let it dry thoroughly.
- Lightly sand rough or weathered areas.
- Apply a quality exterior stain or sealer suited to the species, following the manufacturer’s instructions.
- Pay attention to end grain and the tops of beams, which take the most weather.
When to call a professional
Structural concerns, such as cracked beams, decay at post bases or movement in footings, should be evaluated by a qualified professional. Electrical issues with fixtures or wiring should be handled by a licensed electrician.
Talk it through with GaziBoys
Every backyard is different, and the best answer for your home depends on your space, your sun exposure and how you want to use it. GaziBoys is based in Burbank and works with homeowners across Greater Los Angeles. Request a free estimate or call (747) 344-7727 to talk about your project.