Paver Sealing Cost Calculator

Foot traffic off for 24 to 48 hours. Vehicles off for 48 to 72. No furniture or planters for 48 to 72 hours, and no dragging anything across the surface for two weeks while the film keeps hardening.

Before you pay the balance, walk the whole surface in daylight and photograph it. You're checking for missed spots, uneven sheen, and edge coverage. Photograph the product container too; it's the only proof of what actually went down.

Then write the date on your calendar. At year two, drop water on the surface. Beads mean you're fine, immediate absorption means you're due.

Two bids on one 400 sq ft patio, three times apart. Neither contractor is lying. They're pricing different scopes and neither one wrote that down.

Paver sealing is four separate services sold as one line item: pressure cleaning, joint re-sanding, sealer, and stripping whatever is already on there. A cheap bid usually drops two of the four.

Look at the bottom row. Stripping alone can cost more than every other line combined. That's the row the $400 bid assumes away.

Solvent-based sealers contain volatile organic compounds (VOCs) regulated in many states. Water-based formulas avoid this. Labor eats 50% to 65% of a legit job.

BLS Occupational Employment Statistics wage tables are why the same scope prices differently in Boston than in Ohio; a two-person crew runs $400 to $800 a day and covers 1,000 to 1,500 sq ft. Add 15% to 25% overhead and 20% to 35% margin and anything under $0.80/sq ft all-in stops adding up.

Change the job type dropdown above from fresh seal to strip-reseal. That single switch is the whole gap between the two bids on your table.

Ask each bidder for the four services priced separately. A contractor who can't itemize them is quoting a guess.

Your pavers were sealed five years ago and the finish is going patchy. The question worth $400 to $1,000 on a 400 sq ft patio: new coat on top, or strip first?

Strip it if any of these apply: the sealer is flaking, peeling, or cloudy white; more than two existing coats are on the surface; or you're switching sealer chemistry.

The mechanism is adhesion. A film sealer bonds to what it touches. If it touches a layer that's already lifting off the paver, the new film lifts with it, and the milky look means water is trapped underneath and has nowhere to go.

Top-coating that surface buys you one season before it delaminates and you pay for the strip anyway, plus a wasted reseal.

The xylene test (per OSHA 29 CFR 1926) tells you which chemistry you have. Dab a little xylene on a rag in a hidden corner and rub.

If the finish softens or goes tacky, it's solvent-based acrylic. If nothing happens, it's water-based or penetrating. Do this before you buy product, not after.

If you didn't apply the existing sealer yourself and nobody can name the product, treat it as a strip job. Guessing wrong costs $1.00 to $2.50 per sq ft in stripping plus the full reseal you already paid for.

Set the job type dropdown above to strip-reseal and the estimate already carries the stripping cost, so you're comparing quotes against the right number.

Timing is a price variable, not a scheduling detail. Book at the wrong time and you pay twice: once at peak rates, again when the sealer hazes and has to come off.

Cure window: 50F to 90F, humidity under 65%, no rain 24 hours either side. Above 90F the solvent flashes off faster than the film can level and you get bubbles. Below 50F the film doesn't coalesce and the color shifts. Over 65% humidity, water-based sealer clouds while it's still wet.

Nationally that puts you in April to May or September to October. Florida and the Southeast run the opposite calendar: November through March is the window, and June through September is the season that kills solvent-based sealer in 12 to 18 months of UV and afternoon storms.

Northern crews discount 10% to 20% for late-fall bookings because demand falls off, not because the work gets worse. The temperature window is the constraint, not the crew.

New pavers are a separate rule. Leave them bare 60 to 90 days so efflorescence can work its way out. Seal before that and you lock white blotches in permanently.

Call in the shoulder month before your region's peak and ask for the off-season rate by name. These regional figures are market estimates, so treat them as a sanity check on your bids rather than a fixed price.

You've got a bid in hand and no way to tell a careful contractor from one who'll be unreachable when the finish goes cloudy. Five questions sort them in about four minutes.

1. "What product are you applying, and can I see the data sheet?" The product name gives you coverage rate, finish, and expected life. Refusal to name it is the answer.
2. "Does the price include re-sanding the joints with polymeric sand?" Sealer locks the joint sand in place. Seal over depleted, ant-tunneled sand and you've preserved the problem.
3. "How many coats, and what's the dry time between them?" Two thin coats 30 to 60 minutes apart is the standard. One thick coat traps solvent and peels inside 6 to 12 months.
4. "What's your written warranty if it hazes or peels?" One to two years on workmanship, in writing. Anyone who says it never fails hasn't sealed enough pavers.
5. "Are you stripping the existing sealer or going over it?" If they say going over is fine, ask for that assessment in writing with the warranty behind it.

Walk away from the door-knocker. The pattern is documented by consumer protection offices: a truck stops, someone has leftover material from a job down the street, price is good today only, cash only, no contract. What goes on the pavers is unknown and the truck is gone by evening.

Two more hard rules on money. Never more than 25% deposit, and never wire or Zelle an individual for a job over $200, because neither has any chargeback path.

A card fee of 2% to 3% is cheap insurance on a $700 job, and asking for the 5% to 10% cash discount is fair game once you trust the contractor.

Verify liability insurance before anyone touches a travertine pool deck. Sealing is maintenance, so your homeowner's policy covers none of it, and paver manufacturer warranties cover the paver, never what's applied on top.

The sealer is cheap. That's the trap. Application isn't the hard part; surface prep and weather timing are, and those are what fail.

Real DIY cost on a 400 sq ft patio: $0.15 to $0.30 per sq ft in sealer, so $60 to $120, plus $40 to $80 for cleaner, $50 to $150 for a pump sprayer, and $50 to $100 a day for a pressure washer rental if you don't own one.

Total lands at $180 to $350. A pro doing the same patio all-in is $600 to $1,300.

Now the third column nobody prints. A failed DIY job that needs professional stripping and resealing runs $1,000 to $3,500 on top of what you already spent. That's roughly three to five times the pro price you were trying to avoid.

DIY is a fair bet when all of these hold: 200 to 600 sq ft of flat concrete pavers, first seal ever, you have or can rent a pressure washer, and the forecast gives you a 50F to 90F day under 65% humidity with no rain either side.

Hire it out when any of these is true: solvent-based sealer already on the surface, a pool deck where wet slip resistance is a liability question, natural stone like travertine or slate, existing haze or efflorescence, or a driveway with oil staining.

There is a third sealer type worth knowing: penetrating silane-siloxane sealers (market estimate: $1.50 to $2.50/sq ft installed) soak into the paver rather than forming a film on top.

No stripping at end of life, just reapply. Safe for pool decks. Right for homeowners who want protection without any gloss at all. Lifespan runs 3 to 5 years.

Do a low-visibility side yard first if you're learning. Set the area input above to just that section and see what the practice run costs before you commit the whole patio.

Fix the base before you seal anything. Hollow-sounding or rocking pavers mean the base has moved, and sealer does not fix settlement; that job is closer to a concrete calculator estimate for a new base than to a maintenance coat.