Should I Seal My Patio or Driveway? Pros, Cons and Costs
Quick answer: Should I Seal My Patio or Driveway
Sealing is worth it for most block paving, imprinted concrete and natural stone patios. A good sealer locks in joint sand, resists oil and stains, slows weed and algae growth and enhances colour. It lasts around 3 to 5 years on driveways. It must be applied to clean, completely dry paving, or it can turn cloudy.
Key takeaways on should i seal my patio or driveway
- Sealing protects, it does not clean - always clean first.
- Choose a breathable sealer for natural stone.
- Matt, satin and wet-look finishes are available.
- Re-seal every 3 to 5 years depending on traffic.
Benefits of sealing
- Binds kiln-dried sand in the joints, reducing weeds.
- Makes oil, food and drink spills easier to wipe up.
- Reduces algae and moss growth.
- Restores and enhances faded colour.
Downsides to consider
- Wet-look sealers can be slippery when wet.
- Poor application on damp paving can leave a white haze.
- It is not permanent and needs re-applying.
Which sealer for which surface
| Surface | Recommended sealer |
|---|---|
| Block paving | Polyurethane or acrylic joint-stabilising sealer |
| Indian sandstone | Breathable impregnating sealer |
| Imprinted concrete | Solvent-based acrylic |
| Porcelain | Usually not needed |
Timber decks need an oil or decking stain instead - see the advice from deck building professionals on looking after timber.
Should I Seal My Patio or Driveway: frequently asked questions
How long after cleaning can I seal a patio?
Wait until it is completely dry, usually 24 to 72 hours of dry weather after cleaning.
Does sealing stop weeds?
It greatly reduces them by hardening the joint sand, but seeds can still land and grow on top over time.
Can you seal a patio in winter?
Most sealers need temperatures above about 5°C and no rain for 24 hours, so spring to early autumn is best.