Professional patio sealing usually costs $1.50-$4 per square foot, or about $450-$1,200 for a 300-square-foot patio. The surface material, cleaning and repair needs, sealer type, and local labor rates can move the quote substantially; DIY materials often cost less but do not include labor or tool rental.
| Item | Low | Average | High | Notes |
|---|---|---|---|---|
| Professional concrete sealing | $300 | $675 | $1,200 | 200-400 sq ft; basic cleaning and sealer |
| Professional paver sealing | $400 | $900 | $1,800 | Includes typical application; joint sand may cost extra |
| Professional natural-stone sealing | $500 | $1,050 | $2,000 | Porous or specialty stone may require more product |
| DIY sealer and supplies | $60 | $180 | $400 | For roughly 200-400 sq ft; excludes equipment rental |
Typical patio sealing prices by surface and size
For a standard, accessible patio in sound condition, contractors commonly charge $1.50-$3 per square foot for concrete and $2-$4.50 per square foot for pavers. Natural stone often runs $2.50-$5 per square foot because it may need a compatible penetrating product and careful application. These estimates generally cover routine washing and one application, not major repairs or stripping old coatings.
A 300-square-foot patio usually costs about $450-$1,200 to seal professionally. A straightforward concrete slab may fall near $450-$750, while pavers with joint-sand work can reach $900-$1,350. A small patio may have a minimum service charge, so the per-square-foot rate can be higher below about 150-200 square feet.
Assumptions: U.S. contractor pricing, standard-grade sealer, normal access, and a patio needing no extensive coating removal or masonry repair. Rates vary by local labor costs, surface condition, product coverage, and whether the contractor includes cleaning in the quoted price.
What concrete, paver, and stone line items add to a quote
A patio-sealing estimate may bundle preparation and application, or list them separately. Comparing line items helps show whether a low bid leaves out cleaning, repairs, or materials needed for a durable result. A quote should identify the surface area, sealer type, number of coats, and any work beyond routine preparation.
| Quote item | Typical price | What it covers | Cost note |
|---|---|---|---|
| Wash and surface prep | $0.30-$0.90 per sq ft | Cleaning, rinsing, and drying | Heavy algae or grease adds time |
| Concrete sealer and application | $0.70-$2.10 per sq ft | Standard acrylic or penetrating sealer | Decorative finishes may cost more |
| Paver sealer application | $1.20-$3.25 per sq ft | Sealer suited to paver material | Joint stabilization may be separate |
| Joint sand and touch-up | $0.50-$1.50 per sq ft | Refilling or stabilizing paver joints | Depends on joint depth and washout |
| Old coating removal | $1-$3 per sq ft | Stripping or mechanical removal | May be required before recoating |
Some contractors quote a combined price rather than separate rates. Ask whether the total includes detergent, pressure washing, minor crack filling, sealer, and cleanup. Taxes and local disposal charges may also appear, although routine wash water is not always billed as a separate disposal item.
Labor can account for a large share of the bill when preparation is difficult or the patio has many edges. A crew may charge by area, by the hour, or through a minimum project fee, so the quoted total matters more than a single labor line.
How square footage, porosity, and coating condition change the price
Area is the clearest pricing variable: doubling the patio size usually increases sealer and labor costs, but not always at exactly twice the rate. Larger open areas are faster to cover per square foot. Steps, narrow borders, built-in planters, and many furniture obstructions slow the crew and increase masking or handwork.
Material porosity affects the amount of sealer required. Dense, smooth concrete may need less product than rough, exposed-aggregate concrete or porous stone. A surface that absorbs the first coat quickly may need a second coat, adding roughly $0.50-$1.50 per square foot, depending on product and labor.
Patios larger than 500 square feet can receive a lower unit rate, while patios under 150 square feet may face a minimum charge. For pavers, joints deeper than about 1 inch or visibly washed-out sand can require extra material and labor. For concrete, widespread peeling or a prior film-forming coating can make stripping necessary rather than simple resealing.
Cracks, spalling, efflorescence, oil stains, and persistent mildew can change the work plan. Minor spot treatment may add $50-$200; patching or grinding multiple damaged areas can add several hundred dollars. Sealer should not be used to hide structural movement or active moisture problems, which may need separate diagnosis and repair.
How long patio sealing takes and what labor includes
A typical 200-400-square-foot patio takes a two-person crew about 3-6 hours on site for cleaning, masking, and application, with additional drying time before the surface can be used. If the patio requires stripping, paver sanding, or several repair steps, the job may take a full day or require separate visits.
Contractor labor rates commonly work out to about $50-$100 per worker-hour, though many companies set a minimum service price instead of billing hourly. The work usually includes moving light obstacles, cleaning the surface, allowing it to dry, applying sealer, and basic cleanup. Furniture removal, extensive masking, or moving heavy grills may be excluded.
Drying and weather windows can matter as much as the application time. Concrete and pavers generally need to be dry before sealing, and rain or high humidity may delay work. Ask how long the surface must stay dry after application and when foot traffic, furniture, or pets can return; product directions vary.
Regional patio sealing rates from rural markets to coastal cities
Local labor, travel distance, and contractor demand affect the final price. In lower-cost rural and small-town markets, straightforward work may land near the bottom of the ranges. Large metro areas and high-cost coastal markets can run about 15%-35% higher, especially where labor is expensive or access and parking are difficult.
Climate and surface exposure influence preparation and product choice more than they set a fixed regional rate. Freeze-thaw conditions can expose cracks and make repairs important; hot, sunny patios may need a sealer suited to ultraviolet exposure. In humid areas, mildew removal and drying delays can add labor or rescheduling costs.
For a 300-square-foot concrete patio, a regional swing of 20% can mean roughly $100-$200 on a typical quote. Request estimates from contractors who work with the specific local surface and climate. Compare what each bid includes rather than treating a broad regional average as a guaranteed price.
Cleaning, old sealer removal, and paver sand add-ons
Routine cleaning is sometimes included, but deep cleaning can be billed separately at around $0.30-$0.90 per square foot. Stubborn grease, rust, algae, or years of embedded dirt may need specialty cleaner or repeated treatment. Allow roughly $50-$200 for a modest spot-treatment charge, with larger or heavily stained surfaces costing more.
Removing an incompatible or failing coating can add $1-$3 per square foot. This work may involve chemical stripping, scraping, or mechanical abrasion, and the method depends on the old product and substrate. Applying a new sealer over a peeling film can lead to poor adhesion and another premature expense.
Paver patios may need fresh joint sand after washing. A typical allowance is $0.50-$1.50 per square foot for refilling or stabilizing joints, but extensive washout can raise the price. Repairs to loose or sunken pavers are usually separate and may be priced by the area repaired or by a minimum labor charge.
Confirm add-ons before approving the quote, especially stripping, joint sand, and crack repair. Ask the contractor to distinguish necessary preparation from optional upgrades and to explain the condition that triggers each charge. This makes competing bids easier to compare and reduces surprise costs.
Three sample quotes for common patio sealing jobs
| Patio and scope | Work estimate | Approximate total | Price basis |
|---|---|---|---|
| 200-sq-ft concrete slab, sound condition | Wash and one coat; about 3 labor hours | $350-$600 | $1.75-$3 per sq ft |
| 350-sq-ft paver patio, joints need sand | Wash, joint touch-up, and sealer; 5-7 labor hours | $850-$1,400 | $2.40-$4 per sq ft |
| 450-sq-ft porous stone, extra preparation | Deep clean and two-coat product; 7-9 labor hours | $1,350-$2,250 | $3-$5 per sq ft |
These examples assume ordinary access and locally typical labor rates. The paver estimate allows for moderate joint-sand work, not replacement of a large number of loose pavers. The stone example assumes a product compatible with the specific stone; unusual finishes or extensive stain removal can exceed the range.
Use the scope and unit rate to test whether a quote fits the project. If a bid is far below similar estimates, check whether it omits surface cleaning, a second coat, joint work, or removal of old sealer. A higher quote may be reasonable when it includes repairs or a more costly material-specific product.
DIY sealing versus hiring a patio contractor
DIY sealer generally costs $0.30-$1 per square foot for common concrete products, with supplies such as cleaner, brushes, rollers, and protective equipment adding about $30-$100. A pressure-washer rental may cost $40-$100 per day. Premium stone products can raise material spending to $1-$2 per square foot, depending on coverage and number of coats.
DIY can save labor on a simple, clean slab, but product coverage and surface dryness are important. Applying too much film-forming sealer can leave a cloudy or slippery finish, while sealing damp pavers may trap moisture. Homeowners should follow the product label for temperature, drying time, and application method.
A professional is more likely to make financial sense when the patio needs stripping, repairs, or specialized paver or stone treatment. For a basic job, compare the DIY material-and-rental total with contractor quotes and include the value of setup, cleanup, and the risk of correcting an uneven application.
Lower the patio sealing bill without skipping preparation
Clear furniture, planters, rugs, and toys before the crew arrives. Confirm whether the contractor charges for moving items, and ask whether the homeowner can handle simple removal safely. Providing unobstructed access can reduce labor time, especially on patios with many small sections or tight corners.
Compare at least three written quotes using the same square footage, cleaning scope, product type, and coat count. Ask for separate prices for optional joint sand, repairs, and old-coating removal. A lower material price is not necessarily a saving if the product is unsuitable for the surface or the bid excludes essential preparation.
Choose the least expensive sealer that fits the patio material and exposure, not an unnecessary premium finish. If the existing coating is intact and the surface is clean, ask whether a maintenance coat is appropriate instead of full stripping. Scheduling during a contractor’s less-busy period may help, but the patio still needs suitable dry weather and application conditions.
Seal only after fixing active drainage or moisture issues; otherwise the coating may fail and require costly removal. For pavers, request a quote with and without joint-sand work if the joints are still stable. For concrete, distinguish small cosmetic cracks from repairs that need a separate masonry professional.