Driveway sealing
Driveway Sealing Cost: Concrete Sealers, Prep and How Often to Reseal
Quick reference: the terms that change the price
Four terms explain most of the gap between two quotes for the same job.
Cost by area
| Area | Typical professional cost | Example |
|---|---|---|
| 100 sq ft | $200 to $300 | Small pad, walkway |
| 200 sq ft | $400 to $600 | Patio |
| 400 sq ft | $800 to $1,200 | Small driveway |
| 576 sq ft | $575 to $1,700 | Two-car driveway |
| 1,000 sq ft | $2,000 to $3,000 | Large driveway |
Larger jobs cost less per square foot because the setup and mobilisation are spread over more area. Small jobs are often priced at a minimum call-out.
What a sealing quote includes
A proper quote includes cleaning, a moisture test, crack and joint preparation, the sealer, the application and the cure plan. Some contractors price cleaning and crack filling separately, especially if the driveway has oil stains or wide joints.
Ask what is excluded. A quote for sealing a cracked, dirty driveway without prep is a coating that will fail within a season.
Sealer types and what they cost
| Sealer | Cost per gallon | Best for |
|---|---|---|
| Acrylic | $35 to $80 | Patios, decorative concrete |
| Polyurethane | $20 to $90 | Driveways, high traffic |
| Epoxy | $40 to $125 | Garages, interior floors |
| Penetrating | Varies | Exterior slabs, natural look |
A gallon covers roughly 200 to 300 sq ft, depending on the product and the surface. Two coats are common on a driveway, so the material for a 576 sq ft driveway is about 4 to 6 gallons.
When to seal a concrete driveway
New concrete should cure for about 28 days, and many contractors recommend waiting 28 to 90 days before the first sealer. Sealing too early traps moisture and can cause a white haze or peeling.
Old concrete should be sealed when the surface starts to look dry, dusty or faded, and before winter. A simple test: pour a small amount of water on the slab. If it beads, the sealer is still working; if it soaks in, it is time to reseal.
Preparation: the step that decides the result
Clean the slab thoroughly, remove oil and tyre marks, and let it dry. Fill cracks with an appropriate filler and repair spalls before sealing. Joints should be cleaned and refilled with a flexible sealant if the old sealant has failed.
Do not seal over a wet slab or in the heat of direct sun. Moisture under a film-forming sealer causes bubbles, haze and peeling, and the fix is stripping the whole slab.
How the sealer is applied
Most sealers are sprayed or rolled in thin, even coats. A sprayer covers large areas quickly; a roller gives more control on a small job. Two thin coats are better than one thick coat, which can puddle and dry unevenly.
Keep traffic off for 24 to 48 hours, and vehicles off for 48 to 72 hours, depending on the product and weather. Cool, dry weather with no rain forecast is ideal.
Weather and timing
Sealer needs dry conditions and moderate temperatures, usually above 50F and below 90F. Rain within 24 hours can ruin a fresh coat. Humidity slows curing, so a humid day may need longer before traffic.
Spring and early autumn are the practical windows in most climates. Sealing in late autumn risks a freeze before the sealer cures.
DIY or a professional
DIY sealing is one of the few concrete jobs that a careful homeowner can do well. A kit, a roller, a sprayer and a few hours will seal a small driveway for $40 to $200 in materials. The risks are uneven coats, sealing a wet slab and using the wrong product.
A professional is worth it for a large driveway, a decorative surface or a slab with cracks and stains. The preparation is the part most DIY jobs skip.
How often to reseal
Most concrete driveways need resealing every two to three years. High traffic, de-icing salt and strong sun shorten the interval; a sheltered patio can go three to five years. Reseal before the old coat wears through, not after the surface starts to dust.
Over-sealing is a real problem: too many coats build a film that can peel. If the surface looks glossy and thick, it does not need another coat.
Sealing versus repairing
Sealing protects a sound driveway. It does not fill structural cracks, restore a spalled surface or level a settled slab. Those jobs are patching, resurfacing and lifting, and they should come before the sealer.
A driveway with wide cracks and a failing base needs a repair plan, not another coat of sealer. Sealing over a problem hides it for a season and makes the real repair harder.
A worked example: a 576 sq ft driveway
A two-car driveway of 576 sq ft, cleaned and sealed with a polyurethane sealer in two coats: at $2 to $3 per square foot that is $1,152 to $1,728, near the top of the published range for a driveway that size. With crack filling and joint repair, add $150 to $400.
The same job DIY is about $80 to $200 in materials, plus a weekend. The saving is real, but the preparation and the even coverage are the difference between a good result and a patchy one.
Mistakes that waste a sealing job
- Sealing a wet or dirty slab, so the sealer peels or hazes.
- Applying one thick coat instead of two thin ones.
- Sealing in direct sun or heat, causing bubbles.
- Skipping crack and joint repair before sealing.
- Sealing too often and building a film that cracks.
Driveway maintenance that protects the sealer
Keep the driveway clean, remove oil and leaves, and avoid de-icing salt in the first winter after sealing. Extend downspouts so water does not sit at the edge, and fix ponding before it softens the base.
A sealed driveway is easier to clean and resists freeze-thaw damage. The sealer is the cheap part of driveway care; the base and drainage are what decide how long the slab lasts.
Choosing a sealing contractor
Ask what sealer they use, how many coats, whether cleaning and crack filling are included, and how long to keep traffic off. Ask for the coverage rate and the total square footage.
Compare the same scope. A cheap quote that skips cleaning or uses one thin coat is not a saving; it is a shorter-lived job.
Sealing concrete versus sealing asphalt
Concrete and asphalt need different sealers. Concrete takes an acrylic, polyurethane or penetrating sealer; asphalt takes an asphalt emulsion sealer, usually every two to three years. Using the wrong product on either surface damages it.
The price per square foot is similar, but asphalt sealing is usually cheaper because the material is cheaper. Do not let a contractor seal a concrete driveway with an asphalt product, and vice versa.
How to test whether the sealer is still working
Pour a cup of water on the slab. If it beads and sits on the surface, the sealer is still working. If it soaks in and darkens the concrete, the sealer has worn through and it is time to reseal.
Repeat the test on a dry day, not straight after rain, and check both the traffic lane and the edge of the slab where water stands.
Check in several places, especially where tyres run and where water stands. The traffic lanes wear first, so a driveway can need resealing in the middle before the edges.
Sealing plus crack repair: the combined price
Most driveways that need sealing also have a few cracks. Crack filling at $1.75 to $2 per square foot for the cracked area, or $150 to $400 for a handful of cracks, is usually added to the sealing quote.
If the cracks are wide or the slab is settling, the repair is bigger than a tube of filler. Sealing should wait until the repair is done, because a sealer over a moving crack will crack again.
Sealing stamped and coloured concrete
Stamped and coloured concrete usually has a decorative sealer, often acrylic, to protect the colour and the release agent. A gloss sealer deepens the colour; a matte sealer looks more natural. Resealing every two to three years keeps the finish from fading.
Do not use a high-gloss sealer on a sloped driveway or pool deck without a slip-resistant additive. Decorative concrete can be slippery when wet.
HOA rules, permits and neighbourhood standards
Some HOAs regulate driveway colour and finish, and some cities require a permit for major driveway work. Sealing usually needs no permit, but changing the colour or resurfacing may.
Check the rules before a decorative seal or a colour change. A driveway that violates the HOA can be expensive to correct.
Sealing a driveway on a slope
A sloped driveway sheds water faster, which is good, but a glossy sealer can be slippery. Ask for a slip-resistant additive and avoid a heavy gloss on steep sections. The sealer still needs to be applied evenly, because a thick coat on a slope will puddle at the bottom.
Water should run to a drain or the street, not toward the garage. If the slope sends water into the garage, fix the grading before sealing.
Cost factors that raise a sealing quote
Oil stains, heavy cracking, wide joints, poor access and a very large area all add cost. A driveway with a failed sealer that must be stripped costs more than a first-time seal. A decorative surface needs a compatible sealer.
Ask for the line items: cleaning, crack filling, sealer, coats and mobilisation. A quote that is much lower than the others usually has a missing line.
Winter, salt and freeze-thaw protection
Sealing before winter is one of the best things you can do for a concrete driveway in a cold climate. A good sealer slows water absorption, which reduces freeze-thaw damage and scaling from de-icing salt.
Do not seal if the temperature is forecast to drop below the product minimum, and avoid salt on a freshly sealed driveway for the first winter. Sand is a safer de-icer on new concrete.
What to ask before you book a sealing job
Ask what sealer, how many coats, the coverage rate, whether cleaning and crack filling are included, and the cure time. Ask for the square footage they will seal and the total price.
Get the start date and the weather plan in writing. A sealing job that gets rained on is a wasted coat, and rescheduling should be part of the quote.
What sealing does not fix
Sealing is a protective coat, not a repair. It does not fill structural cracks, restore a spalled surface, level a settled slab or stop water that is getting under the concrete. Those problems need patching, resurfacing or lifting first.
A sealer over a failing slab hides the damage for one season and makes the real repair harder to diagnose. Fix the concrete, then seal it.
Sealing a shared, sloped or commercial driveway
A shared driveway needs agreement from the other owners before sealing, especially if the sealer changes the appearance. Commercial driveways usually need a heavier-duty sealer and a slip-resistant finish, and the job may need to be scheduled outside business hours.
Ask about access and closure for the cure time. A commercial driveway that must stay open can be sealed in sections.
How to maintain a freshly sealed driveway
Keep traffic off for the cure time, avoid washing the surface for a few days, and use a pH-neutral cleaner instead of harsh detergents. Wipe up oil promptly, because oil that sits on a sealer can stain it.
Check the surface each spring. If water stops beading, plan the next coat. A driveway that is resealed on time is easier to clean and lasts longer.
The first year after sealing
In the first month, avoid harsh cleaners, de-icing salt and heavy equipment on the new sealer. In the first winter, use sand instead of salt where possible and keep snow from piling against the garage door.
By the first spring, check the surface for wear at the traffic lanes. A driveway that still beads after a winter was sealed correctly; one that soaks in may need a second coat.
What a good sealer looks like after curing
A good sealer leaves an even sheen or a natural matte finish, with no puddles, bubbles or hazy patches. The colour should look richer than before, not painted. Slight variation is normal on older concrete.
If the surface looks patchy or glossy in some areas and dull in others, the coats were uneven. That is a workmanship issue, not a product issue.
A simple sealing checklist
Clean and dry the slab, repair cracks and joints, check the forecast, apply two thin coats, keep traffic off for the cure time and note the date. That list is the whole job, and skipping any line shortens the life of the sealer.
Write the date on the calendar for the next reseal. A driveway that is maintained on a two to three year cycle never reaches the stage where the surface starts to dust. Keep the product name and the date with the house records, so the next owner knows what was used and when the next coat is due.
Driveway sealing cost calculator
Enter the driveway area and pick a sealer tier to see the professional range.
Estimates, not quotes. Ranges from our October 2026 research. See the price index.
| Line | What it covers | Typical share |
|---|---|---|
| Cleaning and prep | Pressure washing, degreasing, drying | $0.50 to $1 /sq ft |
| Crack and joint repair | Filling cracks, refilling joints | $100 to $400 |
| Sealer material | 2 coats, acrylic or polyurethane | $0.40 to $1 /sq ft |
| Labour and equipment | Sprayer, roller, crew time | $1 to $2 /sq ft |
| Mobilisation | Travel and setup | $100 to $300 |
What this guide does not cover
Some jobs depend on things a national range cannot see. These are the ones where you need a local quote or an engineer.
- Structural repair, slab lifting or replacement.
- Removal of existing coatings or hazardous materials.
- Decorative resurfacing or stamped overlays.
- Commercial or municipal specifications.
- Warranty on sealer wear, which depends on traffic and weather.
Driveway sealing prices and contractors by state
Ranges here are national with a checked month. Local prices move with labour rates, climate and permit rules, so check your state before comparing bids.
Run the full calculator for your own dimensions: open the calculator →
Questions about driveway sealing cost
How much does it cost to seal a concrete driveway?
About $2 to $3 per sq ft professionally, or $575 to $1,700 for a typical two-car driveway.
How much does DIY sealing cost?
About $40 to $200 in materials for a small driveway, plus tools if you do not own them.
How often should I seal my driveway?
Every two to three years in most climates; more often with heavy traffic or salt.
When can I seal new concrete?
After about 28 days of curing, often 28 to 90 days depending on the product.
How long before I can drive on it?
Usually 48 to 72 hours for vehicles, 24 hours for foot traffic, depending on the sealer.
Does sealing fix cracks?
No. Cracks should be filled before sealing; sealing only protects the surface.
Can I seal a wet driveway?
No. The slab must be dry or the sealer will not bond.
What is the best sealer for a driveway?
A polyurethane or acrylic sealer suitable for exterior concrete; ask for a slip-resistant finish if needed.
How much sealer do I need?
About 1 gallon per 200 to 300 sq ft, per coat. A 576 sq ft driveway needs 4 to 6 gallons for two coats.
Is sealing worth it?
Yes for a sound slab: it slows water, salt and staining and makes cleaning easier.
Can I seal over an old sealer?
Only if the old coat is sound and clean. A peeling or flaking sealer must be removed first.
Does sealing make concrete slippery?
A glossy film can. Ask for a slip-resistant additive, especially on sloped driveways.
How long does sealer last?
Two to three years on a driveway, longer on a sheltered patio.
Should I seal before winter?
Yes, sealing before the first freeze helps, provided the sealer cures before the cold.
What is the difference between sealing and resurfacing?
Sealing is a thin protective coat; resurfacing is a new surface layer over a sound slab.
Sealing ranges from published concrete sealing cost research (digitalestimating.com concrete sealing guide, 2026) and sealer material prices from the same source, cross-checked against the LocalServiceHQ price index. Application and cure guidance follows common manufacturer and contractor practice.
Estimates, not quotes. National ranges checked October 2026; local quotes vary by city, access and finish. · What changed on this page · Report a correction