Driveway Washing and Sealing Costs in Ontario in 2026 | Price Calculator
The cost of pressure washing a driveway in Ontario is $0.30 to $0.55 per square foot and affected by surface material, driveway size, accessibility, and condition. For an average 400-600 square foot driveway, expect to pay $150 to $400 for pressure washing alone. Sealing costs vary by material: asphalt sealing runs $0.15 to $0.50 per square foot ($400-$800 total), concrete sealing costs $0.85 to $2.13 per square foot ($500-$1,200 total), and paver sealing ranges from $1.50 to $3.25 per square foot ($600-$1,950 total). Adding polymeric sand costs an additional $0.75 to $1.00 per square foot for labor plus materials.
Which factors affect pricing?
Driveway size is the primary cost factor. Larger driveways require more materials, equipment time, and labor. Pricing drops on a per-square-foot basis for larger projects due to economy of scale. A 200 square foot driveway might cost $0.55/sq ft while a 1,000 square foot driveway drops to $0.35/sq ft for the same service.
| Driveway Size | Pressure Washing Cost | Asphalt Sealing Cost | Concrete Sealing Cost | Paver Sealing Cost |
|---|---|---|---|---|
| 200 sq ft | $110-$150 | $80-$150 | $170-$425 | $300-$650 |
| 400 sq ft | $150-$250 | $150-$300 | $340-$850 | $600-$1,300 |
| 600 sq ft | $180-$330 | $225-$450 | $510-$1,280 | $900-$1,950 |
| 800 sq ft | $240-$400 | $300-$600 | $680-$1,700 | $1,200-$2,600 |
| 1,000 sq ft | $300-$500 | $375-$750 | $850-$2,130 | $1,500-$3,250 |
Surface condition affects labor time and material usage. Heavily stained driveways need pre-treatment chemicals and multiple cleaning passes. Deep cracks require extra filler material. Damaged pavers need removal and replacement before sealing. Contractors charge more for poor-condition driveways—often adding $50-$200 to base pricing.
Accessibility impacts equipment choices and labor efficiency. Driveways with narrow side access force smaller equipment and slower work. Properties without water access need contractors to bring water tanks. Steep slopes require special techniques to prevent sealer from running. Limited access adds 10-30% to standard pricing.
Surface material determines which services apply and at what cost. Pavers always cost more than asphalt or concrete due to joint work, polymeric sand, and detailed cleaning required. Stamped or decorative concrete costs more than plain broom-finish concrete because texture holds more dirt and requires careful sealer application.
| Material | Pressure Washing | Polymeric Sand Removal | Polymeric Sand Install | Sealing | Total (400 sq ft) |
|---|---|---|---|---|---|
| Plain Asphalt | $0.30-$0.40/sq ft | N/A | N/A | $0.15-$0.50/sq ft | $180-$360 |
| Plain Concrete | $0.30-$0.45/sq ft | N/A | N/A | $0.85-$2.13/sq ft | $460-$1,032 |
| Standard Pavers | $0.40-$0.55/sq ft | $0.50-$0.75/sq ft | $0.75-$1.00/sq ft | $1.50-$3.25/sq ft | $1,260-$2,220 |
| Decorative Pavers | $0.45-$0.60/sq ft | $0.60-$0.85/sq ft | $0.85-$1.10/sq ft | $1.75-$3.50/sq ft | $1,460-$2,460 |
Oil stains and specialized cleaning needs increase costs. Heavy oil staining requires degreasers and hot water pressure washing. Efflorescence removal needs acidic cleaners. Rust stains need oxalic acid treatment. Each specialized treatment adds $50-$150 depending on severity and surface area affected.
Geographic location within Ontario creates price variations. Toronto and GTA services run 10-20% higher than rural areas due to higher operating costs and demand. Travel charges apply when properties are far from the contractor’s base—typically $50-$100 for locations beyond 30 km from their service area.
What problems does pressure washing solve?
Pressure washing tackles visible dirt, oil stains, tire marks, mold, mildew, and organic buildup that make driveways look neglected. Oil stains from vehicles penetrate asphalt and concrete, creating dark spots that spread over time. Tire marks leave black rubber deposits that ordinary cleaning can’t remove. Mold and mildew grow in shaded areas, creating slippery green or black patches that pose safety risks.
For paver driveways, pressure washing removes efflorescence—a white chalky residue caused by salt deposits rising to the surface. Weeds push through joints where polymeric sand has degraded. Dirt accumulates in paver texture, dulling the original color. Organic matter like leaves and pollen breaks down into stains that bond with the surface.
Asphalt driveways develop a dull gray appearance as the original black color fades from UV exposure and oxidation. Surface deterioration begins with small cracks that trap water. Concrete shows similar aging with surface dirt embedding into the porous material. Heavy traffic grinds this dirt deeper, making it permanent without pressure washing.
The buildup isn’t just cosmetic. Trapped moisture accelerates freeze-thaw damage in Ontario winters. Each freeze cycle expands trapped water, creating larger cracks. Organic matter holds moisture against the surface, speeding up deterioration. Oil breaks down asphalt binders, weakening the pavement structure.
How does pressure washing work?
Professional pressure washers use machines producing 3,000 to 4,000 PSI (pounds per square inch) with 2.5 to 4.0 GPM (gallons per minute) flow rate. Gas-powered units deliver the pressure needed for driveways, unlike electric models designed for lighter tasks. The high-pressure water stream breaks the bond between dirt and the surface.
The process starts with sweeping loose debris—leaves, dirt, small stones—that could scratch the surface or clog equipment. Operators inspect for major cracks, loose pavers, or structural issues that pressure washing might worsen. Pre-treatment with degreasers attacks oil stains. Contractors apply the cleaning solution and let it sit for 10-15 minutes to break down petroleum bonds.
Surface cleaners attach to the pressure washer wand with rotating nozzles under a protective hood. This setup delivers even cleaning while preventing the spray pattern from creating visible lines on the driveway. The rotating action scours the surface uniformly. For edges, corners, and detailed areas, technicians switch to a wand with a 25-degree or 15-degree nozzle tip.
The cleaning moves from the highest point downward, using gravity to help rinse away loosened material. Overlapping passes ensure complete coverage. Operators maintain consistent distance and speed to avoid creating patterns or damaging the surface. Too close or too slow can etch concrete, strip asphalt, or dislodge pavers.
Hot water pressure washing costs more but cuts through grease and oil faster. The heat melts petroleum-based stains that cold water can’t budge. For heavily soiled driveways, the extra cost saves time and produces better results. Chemical cleaners boost effectiveness—alkaline solutions for organic stains, acidic solutions for mineral deposits and efflorescence.
After washing, the driveway must dry completely. Concrete and pavers need 24-48 hours depending on weather. Asphalt dries faster but still requires at least 24 hours before sealing. Moisture trapped under sealer causes adhesion failure, bubbling, and premature wear.
What problems does polymeric sand solve?
Polymeric sand addresses weed growth, ant colonization, joint washout, and paver shifting in interlocking driveways. Regular sand washes away with rain and allows weeds to root between pavers. Ants excavate regular sand to build colonies, creating voids that let pavers settle unevenly. Without stable joints, pavers rock under traffic and edges spread apart.
Joint sand provides the friction that locks pavers together. When it washes out, individual pavers move independently. This movement chips edges and creates tripping hazards. Water penetrates the open joints and undermines the base layer. In winter, freeze-thaw cycles expand gaps and accelerate deterioration.
Polymeric sand contains adhesive polymers that activate with water. Once cured, the sand hardens into a semi-flexible bond that resists erosion and blocks weed seeds. The polymer coating repels water while allowing some vapor transmission. This keeps the joint material in place during heavy rain while preventing moisture from pooling.
The sand comes in tan, gray, and black colors to match or complement paver tones. Color-matched joints create a unified appearance. The hardened surface resists power washing for future maintenance, unlike regular sand that blows away.
How is polymeric sand removed and installed?
Removing old polymeric sand requires breaking the polymer bond without damaging pavers. Contractors start by pressure washing at 3,000+ PSI with a narrow degree nozzle (15 or 25 degrees) aimed directly into joints. The high-pressure stream cuts through the hardened sand. For heavily bonded sand, technicians make multiple passes from different angles.
Some situations need chemical intervention. Polymeric sand removers are acidic solutions that dissolve the polymer coating. The chemical gets applied to joints, allowed to sit for 15-30 minutes, then flushed with pressure washing. This works for sand bonded to paver sides where mechanical removal risks damage.
After removing the bulk of old sand, technicians use specialized joint scrapers or wire brushes for remaining residue. The goal is clean, empty joints at least 1.5 inches deep for proper new sand installation. Shallow joints don’t provide enough material to lock pavers. Debris or residual old sand prevents new polymeric sand from bonding to paver sides.
The installation starts with completely dry pavers—no damp spots, no rain in the forecast for 24 hours. Even morning dew can activate polymers prematurely. Contractors pour sand over the pavers and sweep it into joints using a push broom. Multiple passes from different directions pack sand evenly.
Excess sand on the paver surface gets swept thoroughly. Any sand left on top will bond to the paver face during activation, creating a hazy film that’s difficult to remove. A leaf blower removes fine dust from paver texture and crevices. This step is critical—polymer dust creates the worst hazing problems.
Activation uses a fine mist spray from a garden hose with a shower nozzle setting. The water must penetrate the full joint depth without creating puddles or runoff on the paver surface. Too much water dilutes polymers and weakens the bond. Too little water leaves dry spots that won’t cure. The mist settles the sand and starts the chemical reaction.
As the water soaks in, the top layer of sand changes color—turning darker and starting to bond. Contractors mist the entire surface systematically, watching for complete saturation. If puddles form, they gently blow them off the pavers. Any polymer-rich water on the surface must be removed immediately before it dries into a haze.
After initial activation, the polymeric sand needs 24-48 hours to cure without any traffic. Light rain after 2-3 hours won’t damage properly installed sand, but heavy rain within the first hour can wash it out. Most products reach full strength in 48 hours but continue hardening for up to 30 days.
What problems does sealing solve?
Sealing protects against UV fading, water damage, oil stains, salt intrusion, and surface deterioration. Unsealed surfaces absorb water, which expands during freezing and creates cracks. Oil and grease penetrate porous surfaces and become permanent. Road salt in winter accelerates concrete spalling and asphalt breakdown.
For pavers, sealing enhances color by darkening the surface and making hues more vibrant. It stabilizes polymeric sand joints by forming a protective cap over the sand surface. This prevents joint erosion from power washing and reduces weed growth. The sealer fills tiny surface pores that trap dirt, making future cleaning easier.
Asphalt sealing restores the rich black color lost to oxidation. Unsealed asphalt turns gray within 6-12 months as UV rays break down surface binders. The sealer replenishes these binders and creates a waterproof layer. This prevents water from seeping into small cracks and extending them.
Concrete sealing stops moisture penetration that leads to spalling—the flaking of the surface layer. It blocks salt from penetrating and attacking the concrete’s internal structure. Sealed concrete sheds water instead of absorbing it, keeping the surface drier and safer in freezing temperatures.
Asphalt sealing applies a protective coating that penetrates surface pores and forms a waterproof barrier. The sealer contains asphalt emulsions, fillers, and additives that rejuvenate aged pavement. Coal tar and asphalt-based sealers are the main product types used in Ontario.
Preparation starts with crack filling. Cracks wider than 1/4 inch get filled with rubberized crack filler that flexes with pavement movement. This prevents water from entering through cracks and undermining the base. The filler needs 4-24 hours to cure before sealing proceeds.
After pressure washing and drying, contractors edge the driveway perimeter. Edging cuts a clean line where the driveway meets grass, sidewalks, or garage floors. This prevents sealer from spreading onto adjacent surfaces and creates professional-looking borders.
Sealer arrives in 5-gallon pails and needs thorough mixing. Settling during storage separates heavier components from liquid. Mixing with a drill-mounted paddle ensures uniform consistency. Some products need dilution with water—typically 0-20% depending on temperature and application method.
Application uses squeegees, brushes, or spray equipment. Squeegee application pushes sealer into surface pores and provides better penetration. Workers pour sealer onto the asphalt in ribbons, then spread it with long-handled squeegees using overlapping strokes. This method applies thicker coats and works well for rough surfaces.
Spray application covers large areas faster and creates a thinner, more uniform coat. Airless sprayers atomize the sealer into fine droplets that settle evenly. This method uses less material but requires skilled operators to avoid overspray and ensure proper coverage.
Most driveways get two coats applied in opposite directions. The first coat seals surface pores. After it dries (4-8 hours), the second coat builds thickness and fills remaining pores. Two thin coats outperform one thick coat by reducing drying time and improving adhesion.
Temperature matters critically. Air and pavement temperature must stay above 10°C (50°F) during application and for 24 hours after. Sealer applied in cold conditions won’t cure properly. Hot weather (above 32°C/90°F) causes too-fast drying and poor penetration.
Drying takes 24-48 hours for foot traffic and 48-72 hours before vehicles can park. Full cure takes up to 30 days. During curing, avoid sharp turns from stationary positions—these twist forces can mark or damage the new sealer.
Concrete sealing uses either penetrating sealers or film-forming sealers depending on the desired result and surface conditions. Penetrating sealers absorb into concrete pores and react chemically with the material. Film-forming sealers create a protective layer on the surface.
Silane and siloxane penetrating sealers are the standard for driveways in Ontario’s climate. These molecules are small enough to penetrate deep into concrete pores where they chemically bond and form a water-repellent barrier. The treated concrete sheds water while remaining breathable—vapor can still escape, preventing moisture from being trapped inside.
This breathability prevents subsurface moisture from being trapped, which is critical in freeze-thaw climates. Trapped moisture expands during freezing and creates internal pressure that cracks concrete. Penetrating sealers stop external water from entering while allowing internal moisture to escape.
Acrylic film-forming sealers create a visible coating on the concrete surface. They enhance color, create sheen levels from matte to high gloss, and provide good stain resistance. Acrylic sealers work well on decorative stamped or colored concrete where appearance enhancement is desired.
The tradeoff with film-forming sealers is reduced breathability and the need for more frequent reapplication. They wear off from traffic and UV exposure. In high-traffic areas like driveways, acrylic sealers may need reapplication every 1-3 years versus 3-7 years for penetrating sealers.
Application of penetrating sealers uses pump sprayers or rollers. The liquid absorbs into concrete within minutes, leaving no visible coating. Two coats applied 15-30 minutes apart ensure complete saturation. Excess sealer that pools on the surface gets back-rolled to spread it evenly before absorption.
Film-forming acrylic sealers apply with rollers, sprayers, or brushes. Rollers provide the most control and even coverage for residential driveways. The application goes on in thin, even coats. Thick applications create bubbling, clouding, or uneven gloss. Most require two coats with 2-4 hours between coats.
Concrete must be completely dry before sealing—at least 24-48 hours after pressure washing depending on humidity and temperature. Moisture trapped under the sealer causes white haze, bubbling, or adhesion failure. The concrete should be at least 28 days old for new installations to allow complete curing.
Temperature requirements mirror asphalt sealing: apply when air and surface temperature exceed 10°C (50°F) with no rain forecast for 24 hours. Lower temperatures slow curing. Rain before curing washes away sealer or creates spotting.
Paver sealing follows polymeric sand installation and curing. The sealer coats both the paver surface and the top of joint sand, locking everything in place. Water-based acrylic sealers are most common for residential driveways due to lower odor, easier cleanup, and good UV resistance.
Sealers come in different sheen levels: natural (no gloss), satin (slight sheen), and wet-look (high gloss). Natural finish maintains the original paver appearance while providing protection. Wet-look creates a darker, richer color with visible sheen similar to wet pavers. The choice depends on personal preference—functionality is equivalent.
Solvent-based sealers penetrate deeper and last longer than water-based versions but cost more and have strong odors during application. They’re preferred for high-traffic commercial areas. For residential driveways, water-based sealers offer the best balance of performance, cost, and application ease.
Joint sand stabilizers are sealer formulations designed specifically to harden polymeric sand. They penetrate the sand and form a tougher bond than polymeric activation alone. This extra hardness resists erosion from future pressure washing and makes joints more resistant to weed penetration.
Application starts with completely clean, dry pavers—at least 48 hours after polymeric sand activation. Any moisture in the pavers or sand causes clouding. Contractors test dryness by taping plastic sheets to the paver surface overnight. If condensation forms underneath, the pavers need more drying time.
The sealer gets poured into a paint tray. Rollers with 1/2-inch nap apply the sealer in thin, even coats working from one end of the driveway to the other. Overlapping roller strokes prevent streaking. The sealer initially looks milky but dries clear.
Avoiding puddles is critical. Excess sealer in paver texture or joints creates white haze or uneven gloss when dry. If puddles form, the applicator immediately back-rolls to redistribute the sealer before it starts setting. Low spots and textured pavers absorb more sealer and may need extra attention.
Most installations use two coats applied 2-4 hours apart. The first coat saturates the pavers and partially seals the surface. The second coat builds film thickness and ensures complete coverage. Applying two thin coats produces better results than one thick coat—better adhesion, faster drying, more even appearance.
Drying time before foot traffic is 4-8 hours; vehicle traffic requires 24-48 hours. Full cure takes 7 days. During this time, avoid parking in the same spot repeatedly and don’t make sharp steering turns from stationary positions.
Resealing frequency depends on traffic, weather exposure, and sealer quality. Most residential paver driveways need resealing every 2-4 years. High-traffic areas or south-facing driveways with intense sun exposure may need annual resealing.
How long do projects take?
Pressure washing a typical 400-600 square foot driveway takes 2-4 hours including setup, cleaning, and cleanup. The actual washing time is 45-90 minutes. The rest covers equipment setup, pre-treatment application, spot treatment of tough stains, and post-cleaning inspection.
Larger driveways (800-1,200 square feet) take 4-6 hours. Complex layouts with curves, multiple parking pads, or heavy staining extend the timeline. Paver driveways take longer than asphalt or concrete because each paver joint needs individual attention and the textured surface holds more dirt.
The 24-48 hour drying period before sealing is critical. Rushing this step causes sealer failure. Weather affects drying time—sunny, warm days allow sealing the next day, while cool, humid conditions may require 48-72 hours.
Asphalt sealing application takes 3-5 hours for a standard driveway including edging, mixing sealer, applying two coats, and cleanup. The first coat dries in 4-8 hours before the second coat application. Total project time from start to final cure spans 2-3 days: Day 1 pressure washing, Day 2-3 drying, Day 3-4 sealing, then 24-48 hours before vehicle use.
Concrete sealing moves faster because single-coat penetrating sealers are common. Application takes 2-3 hours including surface prep and sealer application. Drying time before traffic is shorter—often 4-8 hours for foot traffic, 24 hours for vehicles. Total project time is 2 days: Day 1 pressure washing, Day 2 sealing (after drying), Day 3 full use.
Paver projects take the longest due to polymeric sand work. After pressure washing (Day 1), the driveway needs 24-48 hours to dry before polymeric sand installation (Day 2-3). The polymeric sand needs 24-48 hours to cure before sealing (Day 3-5). Sealing application takes 4-6 hours for pavers due to careful joint treatment. After sealing, another 24-48 hours before vehicle traffic. Total project time spans 5-8 days from start to full use.
Weather can extend timelines significantly. Rain delays work at any stage. High humidity slows drying and curing. Cold temperatures below 10°C stop work entirely. Spring and summer projects proceed fastest. Fall projects face weather uncertainty. Winter work is impossible in most of Ontario.
Multiple driveways or large commercial projects may span several days for just the application phase. Crews work in sections, allowing part of the driveway to remain accessible while other areas cure.
Municipal Information
FAQs
Asphalt driveways need sealing every 2-3 years. Concrete driveways sealed with penetrating sealers last 5-7 years between applications, while acrylic film sealers need reapplication every 2-3 years. Paver driveways require sealing every 2-4 years depending on traffic and sun exposure. Visual inspection helps determine timing—if water no longer beads on the surface or color has faded significantly, resealing is due.
No. The surface must be completely dry before sealing. Concrete and pavers require 24-48 hours of drying time after pressure washing. Asphalt needs at least 24 hours. Trapped moisture under sealer causes bubbling, poor adhesion, and white haze. Weather conditions affect drying time—humid or cool days require longer waiting periods than hot, sunny days.
White residue is usually efflorescence, which occurs when water-soluble salts from the pavers or base material rise to the surface and crystallize. Pressure washing can temporarily worsen efflorescence by introducing moisture. The white deposits are cosmetic, not structural damage. They typically fade over time or can be removed with efflorescence cleaners before sealing. Proper sealing prevents future efflorescence by blocking moisture penetration.
Haze on pavers comes from polymeric sand dust or sealer residue left on the surface before activation. On all surfaces, applying sealer to damp areas creates clouding. Uneven application—too thick in some spots, too thin in others—causes color variation. Temperature extremes during application affect how sealer penetrates and cures. Proper surface preparation, complete drying, even application technique, and working within temperature guidelines prevent these issues.
Sealing doesn’t prevent structural cracking from settling, freeze-thaw damage to the base, or heavy load stress. It prevents surface water penetration that accelerates crack formation and extension. Existing cracks must be filled before sealing. Sealing protects the surface but doesn’t address underlying structural issues. Regular maintenance including crack filling, proper drainage, and timely resealing extends driveway life by preventing small problems from becoming major repairs.
