Your furnace and your A/C don’t ask for much. A filter change here, a once-over there, and they’ll keep running like clockwork for years.
Skip that upkeep, though, and they don’t just quit on you. They become less efficient over time, working harder for the same results, while your energy bill rises without any clear reason.
Most people think a tune-up is just about avoiding a breakdown. That’s part of it, but the bigger cost is the energy you’re wasting every day your system runs dirty or out of tune.
So how much are we actually talking about?

What a furnace tune-up saves you
A few numbers worth knowing:
- A badly clogged filter can waste up to 20% of a furnace’s efficiency
- Alberta households use about 100 GJ of natural gas a year on average, the highest of any province
- Heating alone makes up about 64% of total household energy use
When you look at the numbers, it’s easy to see why a dirty filter is especially costly in Alberta. Heating uses more energy than anything else in the home, so wasting even a little can have a bigger impact on your bills.
What a furnace tune-up actually checks:
- Filter condition and airflow
- Burner and ignition system
- Heat exchanger condition
- Blower motor and belts
- Thermostat accuracy
- Carbon monoxide levels
This isn’t an exhaustive list, but most of it isn’t something you can check on your own, which is really the case for getting a professional furnace tune-up.
What an A/C tune-up saves you
Cooling costs less than heating in Alberta overall, but the same energy waste applies:
- A clogged A/C filter can cut cooling efficiency by 5-15%
- Low refrigerant forces the compressor to work harder for less cooling, which costs more
- The average Alberta household uses about 7,200 kWh of electricity a year, and a struggling A/C can push that number up fast
It doesn’t take much to tip your A/C into working overtime, especially in summer. A dirty filter and low refrigerant can turn a normal energy bill into one that makes you look twice.
What an A/C tune-up actually checks:
- Refrigerant levels
- Coil condition, both indoor and outdoor
- Airflow and filter condition
- Condenser fan motor
- Electrical connections
- Clearing drain lines
A professional technician checks all of these and more during an A/C tune-up, before they turn into breakdowns and big repair bills.

What happens if you skip tune-ups
Wasted energy is only half the problem. A furnace or A/C system running dirty or low on refrigerant is also working harder than it needs to, and that’s exactly what wears it out faster. Put tune-ups off long enough and a cheap fix can turn into a huge repair bill, or even a full system replacement.
Enjoy year-round comfort
If remembering a furnace tune-up every fall and an A/C tune-up every spring sounds like one more thing you’ll forget, ATCO Energy’s HVAC Maintenance Plan handles it all for you. You’ll get an annual tune-up, multi-point inspection, plus discounts on parts and repairs if anything needs fixing.
Frequently asked questions about furnace and A/C tune-ups
How much money can a furnace tune-up actually save me?
It depends how neglected the system was. A badly clogged filter alone can waste up to 20% of your furnace's efficiency, and since heating already makes up about 64% of your home’s energy use, that inefficiency shows up fast on an your natural gas bill.
How often should I get a furnace tune-up?
Every 2 years at minimum for a gas furnace, though most people just book one every fall before the cold hits.
Does a dirty air filter really affect my A/C bill?
Yes. A clogged filter chokes off airflow to the coil, which can cut cooling efficiency by 5-15%.
Can I just change the filter myself instead of booking a tune-up?
Changing the filter helps, but it’s not the whole picture. Refrigerant levels, ignition issues, duct leaks, amongst other things don’t show up unless a certified tech actually checks.
Is a tune-up worth it if my furnace or A/C is fairly new?
Yes. Even a brand-new system loses efficiency without upkeep, and skipping maintenance can void your warranty.
What’s included in ATCO Energy’s tune-up service?
A multi-point inspection covering everything that keeps your furnace or A/C running the way it should, so small issues get caught early instead of turning into a bigger repair, or a wasted month of energy.







