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Frequently Asked Questions (FAQs)

Q1: What types of concrete repair services are available in Calgary?

Calgary contractors typically offer a wide range of concrete repair services, including crack filling and sealing, spalling repair, concrete resurfacing, foundation crack repair, driveway and sidewalk restoration, garage floor leveling, and structural concrete patching. Some companies also offer decorative concrete restoration and waterproofing treatments.

Q2: How do I know if my concrete needs repair or full replacement?

Minor issues such as hairline cracks, surface scaling, or small chips usually call for repair rather than replacement. Full replacement is generally recommended when there is extensive structural damage, widespread sinking or heaving, deep or widening cracks that compromise integrity, or when repair costs would exceed 70–80% of replacement costs. A professional assessment from a Calgary concrete contractor can give you a definitive answer.

Q3: What causes concrete to crack or deteriorate in Calgary?

Calgary’s climate is a leading contributor to concrete damage. The main causes include:

• Freeze-thaw cycles  water seeps into pores, freezes, expands, and fractures the surface
• De-icing salts  commonly used on driveways and walkways, accelerating surface spalling
• Ground movement and soil settling  especially in areas with clay-heavy soil
• Heavy loads  vehicles or equipment exceeding the concrete’s load capacity
• Poor initial installation  inadequate curing, low-quality mix, or insufficient reinforcement
• Tree root intrusion  roots growing beneath slabs can lift and crack concrete

Q4: How much does concrete repair cost in Calgary?

Costs vary depending on the scope and type of repair. As a general guide:

• Crack filling/sealing: $5–$15 per linear foot
• Surface resurfacing: $3–$10 per square foot
• Driveway repair: $300–$2,500+ depending on extent of damage
• Foundation crack repair: $500–$3,000+ per crack
• Slab leveling (mudjacking): $500–$1,500 per area

Always request a detailed written quote from at least two or three local Calgary contractors before proceeding.

Q5: Does insurance cover concrete repair in Calgary?

It depends on the cause of the damage. Home insurance may cover sudden, accidental damage (e.g., a vehicle impact or burst pipe causing a slab to crack). Gradual deterioration, freeze-thaw damage, or normal wear and tear is typically excluded. Foundation repairs may be covered under specific riders or policies. Check with your insurance provider and review your policy details carefully.

Q6: What is the best time of year to repair concrete in Calgary?

Late spring through early fall (May to September) is the optimal window. Concrete repair materials require temperatures above 10°C (50°F) to cure properly. Calgary’s winters are too cold for most standard repair work, though some contractors use heated enclosures or specialized cold-weather compounds for emergency repairs during colder months.

Q7: Can concrete be repaired in winter in Calgary?

Yes, but it requires special precautions. Contractors may use heated tents or blankets, accelerated-cure concrete mixes, or cold-weather admixtures to allow work to proceed safely. Expect higher costs for winter repairs due to additional equipment and labor requirements. Minor crack sealing with epoxy or polyurethane can sometimes be performed in cooler conditions.

Q8: What methods are used for concrete crack repair?

The most common methods used by Calgary professionals include:

• Epoxy injection is ideal for structural cracks; it bonds concrete back together with high-strength epoxy
• Polyurethane foam injection  best for active water-leaking cracks; flexible and waterproof
• Routing and sealing  the crack is widened, cleaned, and filled with sealant
• Stitching  metal staples are anchored across a crack to prevent further movement
• Concrete patching  damaged sections are removed and filled with repair mortar

Q9: How long does concrete repair take?

Most residential repairs are completed within a single day. Larger or more complex projects, such as foundation repairs or full driveway resurfacing, may take two to five days. Curing time is separate; most repair materials reach workable strength within 24-48 hours, but full cure can take 7-28 days, depending on the product and conditions.

Q10: Will repaired concrete look the same as the original?

Not always. Color and texture matching is possible with skilled contractors and quality materials, but some variation is common, especially on weathered or stained existing concrete. Decorative overlays or full resurfacing can help achieve a more uniform appearance. If aesthetics are a priority, discuss color-matching options with your contractor upfront.