The Complete Seasonal HVAC Cleaning Calendar for Stony Plain & Spruce Grove Homeowners

January and February are the coldest months in Stony Plain and Spruce Grove, with average lows between -18°C and -22°C and cold snaps that regularly push beyond -35°C. Your furnace is running at peak demand, often 18 to 20 hours per day. This is not the time for major cleaning projects. It is the time for vigilant monitoring.

• ✓Check your furnace filter every 3-4 weeks. During deep winter, filters clog 30-40% faster than in milder months because the system runs nearly non-stop. A clogged filter at -35°C can cause your furnace to overheat and shut down, which is a genuine emergency. Pull the filter out, hold it up to a light. If you cannot see light through it, replace it immediately.
• ✓Clear snow and ice from exterior exhaust and intake vents after every major snowfall. This is critical. Your furnace exhaust vent (the PVC pipe on the side of your house) needs to be clear for safe operation. A blocked exhaust can cause carbon monoxide to back up into your home. After any snowfall of 10 centimetres or more, go outside and make sure both the exhaust and fresh air intake are fully clear. Brush off any snow, ice, or frost buildup.
• ✓Test all carbon monoxide (CO) detectors. Press the test button on every CO detector in your home at least once during deep winter. If any detector is older than 7 years, replace it now. CO poisoning risk is highest during the coldest months when furnaces run continuously and windows are sealed.
• ✓Check thermostat batteries. If your thermostat uses batteries, replace them now. A dead thermostat battery at 3 AM during a -35°C cold snap is a miserable experience. Many thermostats will display a low battery indicator, but do not wait for it.
• ✓Monitor for unusual furnace behaviour. Listen for new sounds like grinding, squealing, or repeated clicking. Watch for short-cycling, where the furnace turns on and off every 5-10 minutes instead of running steadily. Note any cold rooms or uneven heating. Write these observations down so you can share them when booking your fall furnace cleaning.

March in Stony Plain is deceptive. Some days feel like spring, but average temperatures still hover around -5°C to -10°C, and we regularly get cold snaps back down to -20°C or below. Your furnace is still working hard, but the end of the heavy heating season is in sight.

• ✓Replace your furnace filter. After four to five months of heavy winter use, your filter has taken a beating even if you have been replacing it monthly. Put a fresh one in as you head into the final stretch of heating season.
• ✓Compile your winter observations. Remember those unusual sounds, smells, or performance issues you noticed in January and February? Write them all down in one place. This list will be valuable when you book your professional furnace cleaning in September. It helps the technician know what to pay extra attention to.
• ✓Continue clearing exterior vents after snowfalls. March snowstorms in Parkland County can be heavy and wet, packing tightly around vent pipes. Stay vigilant until overnight lows are consistently above -10°C.
• ✓Start thinking about spring cleaning appointments. If your duct cleaning is due (every 3-5 years) or your dryer vent has not been cleaned in over a year, March is a great time to book your April or May appointment with Home Pros Group. Spring slots fill up fast.

April and May mark the sweet spot for several professional cleaning services. Your furnace has just finished its heaviest work period, your ducts have been circulating air non-stop for six months, and before AC season starts, your system gets a brief rest. This is the ideal window for deep cleaning.

DIY Homeowner Tasks

• ✓Replace your furnace filter one final time for the season. Start the off-season with a clean filter so dust does not settle on a dirty one and compound over the summer.
• ✓Open windows on mild days (above 5°C) for fresh air exchange. After six months of sealed-up winter living, your indoor air is stale. Take advantage of those first warm spring days to flush it out naturally. Even 20-30 minutes of open windows makes a noticeable difference.
• ✓Vacuum register covers and return air grilles. A quick vacuuming of the visible dust on your vent covers takes five minutes and improves airflow immediately.

Professional Cleaning (Book with Home Pros Group)

• ★Schedule duct cleaning if it has been 3-5 years. Spring is the best time for duct cleaning in Stony Plain and Spruce Grove. Your ducts have just accumulated an entire winter's worth of dust, pet dander, and debris. Cleaning them now means you start fresh before AC season, and you will not have to shut down your heating during the cleaning process since you barely need heat anymore. Home Pros Group charges a flat $345 for furnace and duct cleaning with unlimited vents. See our full duct cleaning cost and service guide for a detailed breakdown.
• ★Get your dryer vent cleaned. After running your dryer all winter with heavy loads of sweaters, jackets, and blankets, lint buildup in the vent duct is at its peak. Spring cleaning your dryer vent reduces fire risk and improves dryer performance. Add it to your duct cleaning appointment for just $60 (or $149 standalone).

Summer in Stony Plain and Spruce Grove brings welcome warmth, with temperatures regularly reaching 25°C to 30°C. If you have central air conditioning, your HVAC system transitions from heating to cooling. Even if you do not run AC, there are important tasks to handle.

DIY Homeowner Tasks

• ✓Inspect all exterior vent covers for pest nests. Birds, wasps, and mice love building nests in dryer vents, furnace exhaust pipes, and fresh air intakes during the warm months. Walk around your home and check every vent opening. Remove any visible nests or debris carefully (wear gloves). If the nest is deep inside the vent, call a professional.
• ✓If you have central AC, check or replace the filter monthly. Your AC uses the same furnace filter. A dirty filter reduces cooling efficiency significantly, and your system has to run longer to cool the house, driving up electricity bills.
• ✓Clear vegetation around outdoor AC condenser units. Keep at least 60 centimetres of clearance around your outdoor unit. Trim back shrubs, remove grass clippings, and clear any debris that has accumulated around the base.

Professional Cleaning (Book with Home Pros Group)

• ★AC coil cleaning. If you run central air conditioning, a professional AC coil cleaning ensures your system cools efficiently. Dirty evaporator coils can reduce cooling output by up to 30%, meaning higher electricity bills and a less comfortable home. Home Pros Group offers AC coil cleaning for $60 when added to a furnace and duct cleaning appointment.

August sits right in the middle of Alberta's wildfire season, which typically runs from late June through September. In recent years, Parkland County has experienced some of the worst air quality in the world during active fire seasons. The 2023 and 2024 wildfire seasons brought Air Quality Health Index readings of 10+ (very high risk) to Stony Plain and Spruce Grove for days at a time, with visible smoke thick enough to obscure the sun.

Wildfire smoke is not just unpleasant. It contains extremely fine particulate matter (PM2.5) that penetrates deep into your lungs and passes through standard furnace filters like they are not even there. Your HVAC system becomes your primary line of defence, but only if you manage it properly.

DIY Homeowner Tasks for Wildfire Season

• ✓Upgrade to a MERV 13 filter during active smoke events. Standard MERV 8 filters catch about 20% of PM2.5 particles. MERV 13 filters catch up to 85%. They cost more ($20-$40 versus $5-$15) but the difference in air quality is significant. Check that your furnace can handle a MERV 13 by looking at the manufacturer specifications. Most modern furnaces can.
• ✓Run your furnace fan continuously on the “Fan ON” setting. Even when you do not need heating or cooling, running the fan circulates air through your filter continuously, essentially turning your HVAC system into a whole-home air purifier. This is far more effective than a single portable air purifier.
• ✓Check your filter every 1-2 weeks during heavy smoke. Wildfire smoke can clog a new filter in as little as 7-14 days. Keep a spare filter on hand so you can swap immediately when needed.
• ✓Keep all windows and doors closed during smoke events. Seal any obvious air leaks around windows or doors with temporary weather stripping if needed. Let your HVAC system filter the air rather than letting unfiltered smoke inside.

Note: If your home experienced significant wildfire smoke exposure over the summer, consider booking a professional duct cleaning in the fall. Smoke particles settle inside ductwork and recirculate every time your furnace runs.

If you only take action one month of the entire year, make it September. This is when you book your professional furnace cleaning. Here is why the timing is critical:

• 1.Your furnace has been sitting idle all summer. Dust, cobwebs, and debris have settled on internal components. Starting the heating season without cleaning means all of that gets burned off or blown through your home.
• 2.You beat the rush. Every year, thousands of Parkland County homeowners wait until the first cold snap in October to remember their furnace. By then, HVAC cleaning companies are booked solid for weeks. Booking in September means you get your preferred date and time.
• 3.You have time to address issues. If the cleaning reveals heavy buildup, potential problems, or anything that needs attention from an HVAC technician, you have weeks to deal with it before you actually need the furnace running daily.
• 4.Wildfire residue. If Alberta had an active fire season (increasingly common), your system may have accumulated smoke particles that need professional removal before winter.

Professional Cleaning (Book with Home Pros Group)

• ★Book your professional furnace and duct cleaning now. Home Pros Group's flat-rate $345 service covers your furnace interior (blower fan, heat exchanger surfaces, burner assembly) plus all supply and return ductwork with unlimited vents. No surprise charges, no upsells. Read our complete furnace cleaning guide for details on what the service includes.
• ★Add dryer vent cleaning for $60. Get it all done in one appointment before winter starts.
• ★Add AC coil cleaning for $60. If you ran central air all summer, get the coil cleaned while the technician is there.

October in Stony Plain brings the first real freezes. Average highs drop from about 10°C at the start of the month to near 0°C by the end, and overnight lows regularly dip to -10°C or below. Most homes start running their furnace daily by mid-October. This is your last chance to prepare.

• ✓Install a fresh furnace filter. Start the heating season with a brand new filter. MERV 8 to MERV 11 is the sweet spot for most Parkland County homes, balancing filtration with airflow.
• ✓Test your furnace before you need it. On a cool evening in early October, turn your thermostat to heat and set it a few degrees above room temperature. Let the furnace run for 30 minutes. Listen for unusual sounds, check that warm air is coming from all registers, and notice any burning smells (a brief burning smell on the first run is normal as dust burns off, but it should clear within 15-20 minutes).
• ✓Clear all exterior vents one more time. Remove any leaves, garden debris, or bird nests that accumulated during summer and early fall. Ensure exhaust and intake vents are completely unobstructed.
• ✓Set your thermostat's winter schedule. Program your heating schedule for the season. A reasonable starting point for Parkland County homes is 20-21°C during the day and 17-18°C at night. Adjust based on comfort.
• ✓Test all CO detectors again. With heating season about to start, make sure every CO detector in your home is working. This is a twice-a-year task that takes 30 seconds per detector.

Missed your September furnace cleaning? Call Home Pros Group at (825) 435-9977 to book in early October. Availability fills quickly once the cold hits, so do not wait any longer.

By November, winter has arrived in Parkland County. Average temperatures in Stony Plain drop to -8°C to -15°C in November and continue falling into December, with cold snaps that reach -25°C to -30°C. Your furnace is now running most of the day and night. If you had it professionally cleaned in September, you are in great shape. Now it is about monitoring and maintenance.

• ✓Check your furnace filter monthly. Set a recurring reminder on the first of each month. November and December filters tend to clog faster as the system transitions from intermittent to continuous operation.
• ✓Monitor indoor humidity levels. As Alberta's dry winter air takes hold, indoor humidity can plummet to 10-15% without a humidifier. Target 30-45% relative humidity. Excessively dry air causes cracked woodwork, static electricity, and irritated airways. If your furnace has a built-in humidifier, make sure it is turned on and working. Replace the humidifier pad or panel at the start of each season.
• ✓Clear snow from exterior vents after each snowfall. This becomes a recurring winter task. After every snowfall of 5 centimetres or more, check your exhaust and intake vents. This is especially important for homes where the vents are on the north side of the house, where drifting is more common.
• ✓Listen for changes in furnace performance. As temperatures drop, your furnace works harder. Pay attention to any new sounds, changes in how often the system cycles, or rooms that are not heating evenly. Catching problems early in the season is much better than discovering them during a -35°C cold snap in January.
• ✓Holiday hosting prep. If you are hosting family for the holidays, extra bodies in the house mean more dust, dander, and moisture. Check your filter a week before guests arrive and consider running the fan continuously during large gatherings to keep air circulating.