Tools & materials
- Deck cleaner
- Stiff brush or pressure washer (low setting)
- Exterior deck stain or sealer
- Roller, pad or brush
- Painter's tape
Step by step
- Step 1
Do the water test: sprinkle water on the deck. If it soaks in within minutes, it's time to seal.
- Step 2
Replace any rotted boards and set popped nails or screws.
- Step 3
Clean the deck with deck cleaner and a brush, rinse and let it dry 24–48 hours.
- Step 4
Tape off siding and doors. Work in the shade on a dry day with no rain forecast for 24 hours.
- Step 5
Apply thin, even coats of sealer along 2–3 boards at a time, back-brushing to work it in.
- Step 6
Let it dry fully before walking on it (check the label).
When to stop and call ProFix
If you see any of these, stop and call us:
- Boards are soft, rotted or the deck feels bouncy
- Railings or stairs are loose
- Ledger board connection to the house shows rot
Not in the mood to DIY? A ProFix pro can handle it for you in Chicago Metro and Dallas–Fort Worth, with a written price before work starts.
Related guides
These guides are general information for simple repairs. You're responsible for your own safety and for following local codes and your lease or HOA rules. When in doubt, stop and call a licensed professional. All DIY guides