A clogged filter makes your system work harder, raising bills and shortening its life.
- How often
- Every 3 mo
- Who
- DIY
- Cost
- $10–$30
- Time
- 10 min
Frozen coils or a burned-out blower motor — a $1,500+ repair.
How & when to do itFurnace, AC, filters. Below is everything your heating & cooling needs to stay safe and efficient — sorted into what's critical, what saves money, and what's optional. Each task shows how often to do it, whether it's DIY, and what it typically costs.
A clogged filter makes your system work harder, raising bills and shortening its life.
Frozen coils or a burned-out blower motor — a $1,500+ repair.
How & when to do itYour AC pulls humidity from the air and drains it away; algae and sludge clog that line over time.
A backed-up drain overflows the pan and leaks water into ceilings and walls.
How & when to do itAn annual tune-up catches small failures before peak summer/winter load.
A mid-heatwave breakdown when every tech is booked.
How & when to do itDirty outdoor coils can't shed heat, so the system runs longer and works harder to cool.
Reduced efficiency, higher bills, and early compressor wear in peak heat.
How & when to do it