Diagnosis first, then the right fix
Kitchener Asphalt Paving Pros repairs asphalt driveways, parking lots and private lanes across Waterloo Region, and every repair starts with a diagnosis rather than a price per bucket. We probe the base, read the crack pattern and check where water sits before choosing between crack sealing, a saw-cut patch, an infrared repair or a new coat of sealer.
Homeowners usually call in spring, when a pothole opens by the garage or the edge along the lawn starts to crumble. Property managers, condo boards and plaza owners call about the same damage at a larger scale: trip hazards at store entrances, sunken rings around catch basins and cracked drive lanes that need attention before another winter.
Since 2013 our crews have completed more than 2,500 paving and repair jobs, so we know which fixes hold on Kitchener clay and which ones are back after one thaw. That record is also why we will sometimes tell you a repair is not worth your money and a resurface or replacement is.
Repair services
We offer five repair and maintenance services, each with its own page covering method, materials, weather limits and price. Most driveways and lots need two or three of them together, in the right order.
Our asphalt patching and pothole repair removes the failed asphalt and soft base inside square saw cuts, then rebuilds the hole with compacted stone and hot mix. It is the permanent fix for potholes, broken edges and small areas of base failure.
With hot-pour crack filling and sealing, rubberized sealant is melted on site and pressed into cleaned, dried cracks. It is the cheapest repair we do and the one that prevents most of the others.
Our infrared asphalt repair softens the damaged area with radiant heat and blends in rejuvenator and fresh hot mix. The repair fuses to the pavement around it, which suits catch basin rings, birdbaths and trip hazards.
Coal-tar-free driveway sealing and sealcoating slows oxidation and keeps salt and oil from soaking in. It protects sound asphalt, so we repair cracks and holes before any sealer goes down.
Hot-water asphalt power washing at controlled pressure lifts oil, salt film and grime without stripping fine stone from the surface. Customers book it alone in spring or as the first step of a sealcoat.
Widespread base failure calls for asphalt removal and replacement. A worn surface on a sound structure is usually better value as an asphalt resurfacing overlay than as a patchwork of repairs.
Why asphalt fails
Freeze-thaw cycles break asphalt by letting water in, freezing it and then removing the support it leaves behind. A Waterloo Region winter swings above and below 0 C dozens of times, and each swing repeats the damage.
The cycle runs in four stages. Most repair calls we get in March and April are stage four on a driveway or lot that showed stage one the autumn before.
Rain and snowmelt enter through open cracks, seams and porous, oxidized asphalt. On the clay and silt till under much of Kitchener, that water has nowhere to drain, so it sits in the base.
Water expands about 9% as it freezes, pushing the asphalt up and widening every crack it fills. Frost reaches about 1.2 m (4 ft) deep here, far below any driveway base, so drainage matters more than depth.
When the ice melts, the lifted asphalt settles onto base that is now wet, loose and weaker than before. The surface looks intact but is bridging a soft spot.
Tires flex the unsupported asphalt until it cracks into pieces and pops out as a pothole. Road salt adds to the damage by speeding up ravelling on unsealed, grey asphalt.
Soil changes the pace. Sandy ground on the Waterloo Moraine under west Kitchener and Waterloo drains faster and heaves less, while clay neighbourhoods see the same cracks turn into potholes within one or two winters.
Breaking the cycle at stage one is cheap: sealed cracks and a sealed surface keep water out of the base. Every stage after that costs more to fix.
Diagnosis
The right repair depends on what caused the damage, not on how bad it looks. A wide crack on a sound base is a quick sealing job, while a small patch of alligator cracking can mean the base underneath has failed.
Use the table to read your own driveway or lot, then the notes below for quick checks you can do yourself before we visit.
A crack you can fit a pencil into is past what a cold-pour filler can hold. Cracks that run straight across the driveway at fairly even spacing are thermal and move every season, so they need routed hot-pour sealing.
Our driveway crack sealing service covers how we decide between filling and sealing each crack.
Press the edge of the hole with your boot. If pieces break away and the stone underneath is wet or muddy, the base is involved and needs a saw-cut asphalt patch.
Shallow dips on firm ground, especially around catch basins, are often a better fit for seamless infrared patching.
Cracks that join into small blocks like reptile skin, often in wheel paths or below a downspout, mean the base has given up. Sealing them only hides the problem for a season.
One or two small areas can be cut out and rebuilt. When the pattern covers a large share of the surface, driveway removal and replacement is the repair that lasts.
Pour a cup of water on the asphalt. If it darkens and soaks in within a minute, the surface is porous and due for coal-tar-free sealcoating.
Oil spots must be cleaned and primed first, or they bleed through the sealer, which is why driveway power washing usually comes first.
| Damage | What it means | Repair method | Where to start |
|---|---|---|---|
| Hairline cracks under about 6 mm (1/4 in) | Surface shrinkage from age and sun; little movement | Clean, fill and then seal the surface | Crack filling |
| Working cracks 6 to 25 mm (1/4 to 1 in) that widen in winter | Thermal cracks that open in cold and close in heat | Rout and seal with hot-pour rubberized sealant | Routed crack sealing |
| Potholes | Water got under the surface and the base lost support | Saw-cut full-depth patch, or infrared on a sound base | Pothole repair |
| Alligator cracking | Fatigue failure of the base under traffic or water | Full-depth patch if small; replacement if widespread | Removal and replacement |
| Settled areas near catch basins | Base washed out or settled around the structure | Infrared reshaping, or base repair and patch | Infrared repair |
| Oxidized grey, rough surface | UV has dried the binder and fine stone is loosening | Sealcoat if sound; overlay if ravelling is deep | Sealcoating or resurfacing |
| Oil and fuel stains | Petroleum is softening the binder | Degrease, wash, prime, then seal | Power washing |
The big decision
Repair when the base is sound and the damage is limited to a few areas. Resurface when the structure is sound but the whole surface is worn, and replace when the base has failed or the pavement is near the end of its 15 to 25 year life.
We judge it on four things: base condition, age, crack width and depth, and the share of the surface that is damaged. As a working rule, once roughly a quarter to a third of the surface needs patching, repairs stop being the cheaper choice.
| Factor | Repair | Resurface (overlay) | Replace |
|---|---|---|---|
| Base condition | Sound; no sinking or heaving | Sound, with only a few soft spots to fix first | Soft, wet, heaving or sinking in several places |
| Pavement age | Any age, if the base is good | Usually 10 to 20 years old | Near or past 15 to 25 years |
| Crack width and depth | Isolated cracks, sealable | Many surface cracks, not through the base | Wide, deep or alligator cracking |
| Share of surface damaged | Under about a quarter | Wear is spread across the whole surface | More than about a third, or the base itself |
| Drainage | Water drains well | Slope can be kept with tie-ins milled at the garage and street | Water ponds or runs toward the house |
| Typical cost before HST | From $250 for crack filling; patches $8 to $15 per sq ft | $3.00 to $4.50 per sq ft | $5.50 to $8.50 per sq ft; $7.00 to $11.00 for a full rebuild |
| What you get | Stops the damage spreading | 8 to 15 more years | A new 15 to 25 year driveway |
An overlay laid over a failing base will crack again along the old cracks below it. Our warranty does not cover those reflective cracks, so we will recommend full asphalt replacement when the base is the problem.
If the structure is sound and the surface is simply tired, asphalt resurfacing gives a new top for about half the cost of replacing the whole driveway.
Pricing
Most residential asphalt repairs in Kitchener cost between $250 and $900 before HST, and commercial repairs are priced by the foot, the square foot or the day. The table shows typical ranges for each repair type and what moves the price.
| Repair | Residential | Commercial | What changes the price |
|---|---|---|---|
| Crack filling and sealing | $250 to $600 for a typical driveway | $1.00 to $2.50 per linear foot, routing extra | Total crack length, width and whether cracks need routing |
| Patching and pothole repair | $350 minimum; small patches $8 to $15 per sq ft | $6 to $12 per sq ft, full depth | Depth, base repair, number of areas per visit |
| Infrared repair | $450 to $900 for the first area, up to about 1.8 m by 1.8 m (6 ft by 6 ft) | Day rate $2,500 to $4,000 | How many areas can be grouped into one visit |
| Sealcoating | $0.25 to $0.45 per sq ft, $250 minimum | $0.18 to $0.30 per sq ft | Area, surface porosity, crack and oil-spot prep |
| Power washing | $150 to $350 per driveway | $0.08 to $0.20 per sq ft | Area, stain severity, moss and access |
Grouping repairs saves money because the crew, saw, roller and hot mix arrive once. A spring visit that patches, crack seals and books the sealcoat costs less than three separate calls.
Every quote lists each repair by location and size, so you can see exactly what you are paying for.
FAQ
These are the questions we hear most when someone shows us a damaged driveway or lot. Each service page answers the detailed questions for its own repair.
Yes, but permanent hot-mix repairs need the paving season, roughly late April to mid-November with air at 5 C and rising. Outside that window, cold patch makes a hole safe until spring, and infrared asphalt repair can stretch the season on dry days because its hot box keeps mix workable for hours.
Not at first. New asphalt is jet black and older asphalt has oxidized to grey, so a patch stands out until it weathers.
Sealing the whole driveway the season after the repair evens out the colour, and our driveway sealing service can be booked for then.
Replace when the base has failed: alligator cracking across large areas, sinking or heaving that returns each spring, water pooling against the garage, or patches that keep failing. Our driveway replacement page explains how we rebuild the base so the problem does not come back.
Yes, most of our repair work is on asphalt laid by someone else. Our 1-year labour warranty covers the patches and crack fills we apply, but not new damage caused by an old base we did not build.
Fix them as soon as conditions allow, because every freeze-thaw cycle makes the hole wider and the base underneath wetter. A temporary fill in winter followed by a permanent pothole repair in spring costs less than letting one pothole become three.
Free assessment
Send photos of the cracks, potholes or stains, or book a site visit and we will walk the driveway or lot with you and explain what caused the damage. We answer the phone seven days a week, Sundays included, so a pothole you spot on the weekend does not have to wait until Monday.