Heating & CoolingHire a professionalBest in spring
Professional duct inspection & sealing
Leaky ducts lose 20–30% of conditioned air before it reaches your rooms.
How often
Every 3–5 years
Time needed
3 hrs (pro)
Typical cost
$300–$700
Helps avoid
~$900
How to do it
This job is best handled by a licensed professional — HomeGuard can help you find one near you.
Common questions
How often should you professional duct inspection & sealing?
Every 3–5 years. Best in spring.
How much does it cost to professional duct inspection & sealing?
Typically $300 to $700 in parts and supplies. Skipping it risks roughly $900 in repair or replacement costs.
How long does it take?
About 3 hrs (pro).
Can I professional duct inspection & sealing myself?
This one should be done by a licensed professional. It involves systems where a mistake is dangerous or costly.
Which of these does your home actually need?
Answer a few questions about your home and HomeGuard builds your personalized maintenance schedule — the right tasks, at the right time of year, for your appliances and climate.
Build my free scheduleMore heating & cooling maintenance
Replace HVAC air filter
Every 3 months · 10 min
Annual HVAC professional tune-up
Once a year · 2 hrs (pro)
Prepare furnace for winter
Once a year · 30 min
Clean outdoor AC condenser
Once a year · 1 hr
Clear AC condensate drain line
Once a year · 30 min
Vacuum vents and return grilles
Every 3 months · 30 min