Guide · Calgary new builds
Calgary Seasonal Home Maintenance Calendar
60+ maintenance tasks organized by season to protect your Calgary home from harsh weather, prevent costly damage, and maintain warranty coverage.
Calgary's extreme weather demands year-round attention. From -30C winters to summer hailstorms, chinook-driven freeze-thaw cycles to bone-dry air that cracks everything -- this city is hard on homes. A new build is not immune. In fact, new homes settle and shift in their first few years, making regular maintenance even more important. This calendar covers everything you need to stay ahead of problems.
Spring Maintenance (March - May)
Spring is inspection season. Winter did its damage -- now is the time to find it and fix it before it gets worse. Calgary springs are wet, and water is your home's biggest enemy.
Roof Inspection
Check for missing or damaged shingles. Calgary's freeze-thaw cycles and chinook winds are brutal on roofing. Look for curling, cracking, or shingles that have blown off. If you see granules in your gutters, your shingles are deteriorating. Do not walk on the roof yourself -- use binoculars or hire a professional.
Check Sump Pump Operation
Spring snowmelt and rain can overwhelm your sump pit. Pour a bucket of water into the pit and verify the pump activates and discharges properly. Check that the discharge line is clear and directed away from your foundation. Consider a battery backup sump pump -- power outages during spring storms are when you need it most.
Gutter Cleaning
Clear debris and check that downspouts direct water at least 6 feet away from your foundation. In a new build, the grading around your home may still be settling -- make sure water flows away from the house, not toward it.
Foundation Inspection
Walk the perimeter and look for new cracks. Hairline cracks are normal in new builds as concrete cures and the house settles. Cracks wider than 1/4 inch or horizontal cracks warrant a call to your builder (if under warranty) or a foundation specialist.
HVAC Spring Service
Schedule AC tune-up before summer (technicians get booked up by June). Change furnace filter. Clean HRV/ERV filters and core. Switch your HRV from winter to summer mode.
Exterior Caulking
Re-seal windows, doors, and trim where caulking has cracked or separated. Calgary's temperature swings cause caulking to expand and contract more than almost any other Canadian city.
Grading Check
The soil around your foundation should slope away from the house. In new builds, fill dirt settles significantly in the first 2-3 years. If water pools near your foundation, add soil to re-establish proper drainage.
Summer Maintenance (June - August)
Summer in Calgary means hail, UV damage, and getting exterior projects done before fall hits.
Post-Hail Inspection
After any hailstorm, inspect your roof, siding, windows, window screens, and AC condenser unit. Document everything with photos and video before calling your insurance company. Calgary averages 8-12 significant hailstorms per summer. File your claim promptly -- insurers get overwhelmed after major events.
Clean Dryer Vent
Disconnect the dryer and clean the full vent line from the dryer to the exterior vent cap. Lint buildup is a fire hazard and reduces dryer efficiency. In new builds, the vent run can be long (especially if the laundry is upstairs), making this even more important.
AC Condenser Cleaning
Cottonwood fluff and poplar seeds clog the outdoor condenser coils every June. Gently rinse with a garden hose (not a pressure washer). Clear at least 2 feet of space around the unit. This alone can reduce your cooling costs by 10-15%.
Exterior Painting & Deck Staining
Best time for deck staining and exterior touch-ups. Calgary's dry air and UV exposure fade finishes fast.
Check Attic for Pests
New communities adjacent to fields and open land can attract mice, squirrels, and birds looking for nesting spots. Check your attic for droppings, nesting material, or chewed wiring. Seal any gaps around vents and soffits.
Fall Maintenance (September - November)
Fall is your last chance to prepare for winter. Calgary's first snowfall can come as early as September, so do not wait until November. Get these done by mid-October at the latest.
Furnace Inspection & Tune-Up
Book a professional tune-up before heating season. They will clean the burners, check the heat exchanger for cracks, test safety controls, and ensure proper combustion. Replace the furnace filter. Test your CO (carbon monoxide) detector -- this is non-negotiable.
Winterize Outdoor Plumbing
Disconnect ALL garden hoses (even frost-free hose bibs can freeze if the hose is left connected). Shut off the interior valve to outdoor taps. Drain the sprinkler system -- a professional blowout costs $50-80 and prevents hundreds of dollars in pipe repairs.
Gas Fireplace Service
If you have a gas fireplace, have it inspected and cleaned annually. Check that the pilot light works, the glass is not cracked, and the venting is clear. Builder-installed fireplaces sometimes have loose connections that need tightening after the first year.
Weather Stripping & Door Sweeps
Check and replace worn stripping around doors and windows. A drafty door can increase your heating bill by $100+/month. Garage doors are especially prone to seal failure.
Insulate Exposed Pipes
Any pipes in unheated spaces (garage, crawl space, exterior walls) should be insulated with foam pipe sleeves. Frozen pipes are one of the most common and expensive winter emergencies in Calgary.
Test Garage Door Auto-Reverse
Place a 2x4 flat on the ground where the door closes. The door should reverse when it contacts the wood. Also test the photo-eye sensors. This is a safety issue, especially with kids and pets.
Final Gutter Clean
Clean gutters again after leaves have fallen. Clogged gutters in winter lead to ice dams, which lead to water damage inside your home.
Winter Maintenance (December - February)
Winter is about prevention and monitoring. Your home is working its hardest during these months. Pay attention to it.
Ice Dam Prevention
Remove heavy snow buildup from roof edges with a roof rake (from the ground -- never climb on an icy roof). Ice dams form when heat escapes through the attic, melts roof snow, and it refreezes at the eaves. The trapped water backs up under the shingles and leaks into your home. Proper attic insulation and ventilation prevent this.
Monitor Indoor Humidity
Keep humidity between 30-40% in winter. Too high and you get condensation on windows and frost buildup in the attic. Too low and you get static, cracked skin, and wood floors that gap and squeak. A hygrometer ($15-20) is essential. Your HRV helps control this -- make sure it is running on the correct winter speed.
Furnace Filter -- Monthly
Replace monthly during heavy use (December through March). A dirty filter makes your furnace work harder, increases your gas bill, and can cause the heat exchanger to overheat and crack -- a $3,000-5,000 repair. A $10 filter every month is the cheapest insurance you will buy.
Keep Snow Away from Gas Meter & HRV Intake
Your gas meter, furnace intake/exhaust vents, and HRV intake/exhaust are usually on the side of your house. Snow and ice buildup can block these vents, causing your furnace to shut down (at best) or creating a carbon monoxide hazard (at worst). Clear them after every significant snowfall.
Check Attic for Frost
See the detailed section below. Attic frost is a major issue in Calgary new builds that many homeowners do not discover until it melts in spring and causes water damage.
Attic Frost -- A Calgary-Specific Problem
Attic frost is one of the most common and least understood problems in Calgary homes -- especially new builds. If you only learn about one thing from this guide, make it this.
What Is Attic Frost?
In winter, warm moist air from inside your home leaks into the attic through gaps around light fixtures, plumbing stacks, electrical wires, attic hatches, and bathroom exhaust fan ducts. When this warm air hits the cold underside of your roof sheathing, the moisture condenses and freezes -- forming a layer of frost (sometimes inches thick) on the plywood.
The real problem comes in spring, or during a chinook, when that frost melts all at once. The water drips down through the insulation, soaks your ceiling drywall, and you discover brown stains, bubbling paint, or actual dripping water. By then, the damage is done.
Why New Builds Are Especially Vulnerable
Construction moisture: New homes contain thousands of litres of water in the concrete, drywall compound, paint, and wood. This moisture evaporates over the first 1-2 years, creating much higher indoor humidity than a dry, established home.
Air sealing gaps: Even well-built homes have air leakage points from the living space into the attic. Common culprits: poorly sealed pot lights, bathroom fan housings, plumbing stack penetrations, and the attic hatch.
Bathroom fans vented improperly: Sometimes bathroom exhaust fans are not properly connected to the roof vent, or the duct comes loose. Instead of venting moisture outside, it dumps it directly into the attic.
Warning Signs
- Water stains on ceilings, especially in spring or after a chinook
- Ice buildup along the roof edge (ice dams)
- Excessive condensation on upper floor windows
- Musty smell in the attic
- Visible frost on the underside of the roof sheathing (check during cold weather)
- Mold or dark staining on attic wood
Prevention
Run your HRV. This is the single most effective thing you can do. The HRV removes excess moisture from your home. Run it on the higher winter speed during the first 2 years.
Keep indoor humidity at 30-35% in winter. Buy a hygrometer. If your humidity is above 40% when it is below -10C outside, you are pushing too much moisture into the attic.
Always use bathroom fans when showering. Run them for 20-30 minutes after showering, not just during.
Use kitchen range hood when cooking. Boiling water and cooking generate significant moisture.
Check attic ventilation. Make sure soffit vents are not blocked by insulation and that roof vents are clear. Proper ventilation allows cold dry air to flush moisture out of the attic.
Seal air leaks. Have a professional air sealing done around pot lights, plumbing penetrations, and the attic hatch. This is often a warranty item if done in year one.
Learn more about attic frost: atticfrost.com is a great resource with detailed information about attic frost causes, prevention, and remediation specific to Calgary and Alberta homes. Highly recommended reading for new homeowners.
Year-Round Tasks
Test Smoke & CO Detectors -- Monthly
Press the test button. Replace batteries annually. Replace the entire unit every 10 years.
Check Water Heater Temperature -- Quarterly
Should be set to 120F (49C). Higher wastes energy and scalds. Lower risks bacterial growth.
Run Water in Unused Fixtures -- Monthly
Run water in basement bathrooms, floor drains, and any fixture you do not use regularly. The P-trap dries out and allows sewer gas into your home. A 30-second flush prevents this.
Check Washing Machine Hoses -- Quarterly
Look for bulging, cracking, or wet spots. Burst washing machine hoses are one of the top causes of home water damage. Replace rubber hoses with braided stainless steel hoses.
Source note
- Sources
- Jurisdiction
- Alberta, Canada (Calgary and surrounding municipalities)
- Applies to
- New construction homes purchased from a builder in Calgary and the surrounding Alberta municipalities.
- Last reviewed
- 2026-09-03
- Limitations
- General information written for Alberta buyers. It does not describe any specific builder's contract, any specific lot, or your financial situation.
- What you should verify
- The exact wording of your purchase agreement, the builder's current incentive sheet, warranty enrolment for the specific home, and any figure you intend to rely on.
Browse every guide in the learning centre, or start with how new build construction works in Calgary.