How to seal a concrete driveway (and how often)

Sealing is the cheapest, highest-return thing you can do for a concrete driveway in Rochester — and the most commonly skipped. Water is what ages concrete here, and sealing is what keeps water and road salt out of the surface. Do it on schedule and a good slab lasts decades. Skip it and the same slab wears out years early. Here's how to seal a concrete driveway, and how often to do it in our climate.

How often to seal a concrete driveway

For most driveways and patios here, every 2–3 years is the right cadence. Our freeze-thaw winters and the road salt that comes with them are hard on sealer, so the shorter end of that range is safer for a driveway that sees a lot of salt and plowing. A simple test: if water stops beading on the surface, the sealer has worn thin and it's time to reseal.

When to seal — and when not to

Seal on a dry, mild day with no rain in the forecast for 24 hours, on a clean, fully dry surface. Don't seal in the cold or when rain is coming — sealer needs to cure. And don't seal brand-new concrete too soon: a fresh pour needs to cure first (here's the curing timeline), and you should skip de-icing salt entirely that first winter.

The basic steps

• Clean it thoroughly — remove dirt, oil and old flaking sealer so the new coat bonds. A proper power wash is the difference between sealer that lasts and sealer that peels
• Let it dry completely — trapped moisture clouds the sealer and ruins adhesion
• Fill any open cracks and joints before sealing so water can't get in behind the coat
• Apply thin, even coats and let each cure — thin and even beats thick and puddled every time
• Keep traffic off until it's fully cured

Why it matters more here

In a milder climate, skipping a sealing cycle is minor. In Rochester it isn't. Unsealed concrete drinks in water and salt, and freeze-thaw turns that moisture into surface scaling, spalling and cracks. Sealing is a small, repeatable cost that protects a big one — it's the same logic whether it's a driveway, a patio or a stamped surface that also needs its color protected.

Rather not do it yourself?

Sealing is straightforward but easy to get wrong — the prep is most of the job, and a bad coat has to come off before you can redo it. We clean and seal driveways, walkways and patios as part of our sealing & power washing service, and it's often the cheapest way to add years to concrete you already have. More upkeep advice on our concrete care tips page.