If your sealer has failed, another coat will not fix it
This is the job people call us about after someone else has been. The driveway was sealed two years ago, it looked good for a season, and now it is cloudy, or blotchy, or it has gone sticky in the sun and picks up every leaf that lands on it.
The instinct is to put another coat on. It is the wrong instinct, and it is expensive, because the new coat sits on top of the failed one and locks the problem in permanently. The old sealer has to come off first.
We have stripped layers and layers of failed sealer off a single driveway before now. It is one of the most satisfying jobs we do, because the paver underneath is almost always fine — it was never the paver that failed.
How to tell a failed sealer from a dirty one
A dirty surface is even. A failed sealer is not. Look for:
(If the surface has gone white rather than patchy, run through failed sealer or efflorescence first — salt coming out of the paver and a clouded film look almost identical and need opposite treatment.)
- A white or milky haze, especially in the low spots. That is moisture trapped under the sealer film, and it usually means the surface was sealed before it was properly dry.
- Patchiness — glossy in places, flat in others, with hard edges between them where a roller or sprayer overlapped.
- Flaking or peeling, often starting at the edges and at the apron by the street.
- Tackiness in the afternoon heat, picking up leaves, dirt and tire marks. That is usually too many coats, or a coat applied too thick.
- Crescent-shaped scuffs where you turn the wheel. Hot tires lifting a soft coat.
If the surface is simply dull and evenly dirty, you do not need this page — you need an ordinary clean, re-sand and seal, which is a smaller job.
Why sealers fail here
Almost always one of four things, and none of them are the homeowner’s fault:
- Sealed over moisture. Concrete pavers hold water for far longer than they look like they do. In a Southwest Florida summer, a surface that was pressure washed in the morning is not dry that afternoon, whatever it looks like.
- The wrong product for the surface. A solvent-based sealer over a coat that was water-based, or a product meant for a different material entirely.
- Too much of it. More coats do not mean more protection. Past a point they mean a thicker film that cannot breathe, and a film that cannot breathe clouds.
- No re-sanding first. Sealing empty joints gives the coat nothing to key into at the edges.
What we actually do
- Strip the failed coat. A stripper, dwelling properly, then removal. Depending on how many layers are under there this can take more than one pass, and we will tell you that up front rather than discovering it on the day.
- Wash back to bare paver. The middle photo of the sequence we have posted on Facebook is this stage, and it is worth seeing: the driveway looks pale and dull, and that is correct. Bare paver is not meant to look good.
- Re-sand every joint. Fresh sand, and we can match the color to the paver rather than defaulting to grey.
- Seal properly. Water-based, applied at the right rate, once the surface is genuinely dry. Protects against mould, weeds and fading, and does not trap what is underneath.
The before-and-after on this page is one of those jobs. Same driveway, same week.
The honest part about cost
Stripping is more work than sealing, so it costs more than sealing, and anyone who tells you otherwise has not looked at your driveway properly. What it is not is a replacement — the pavers under a failed coat are almost always sound, and stripping them is a fraction of what tearing out and relaying would be.
We walk the property before quoting, and if the answer is that the coat can be left another season we will say so.
What you get from us
Our paver sealing carries a two-year warranty, which is the whole point of doing it properly the second time. Licensed and insured. Free estimates, usually same-day. One customer put it best in his Google review — honest and upfront with his work and his pricing, which is what you want from whoever is fixing someone else’s mistake.