Duct Services in Southeast Michigan

Air duct replacement cost for a typical home is confirmed after an on-site inspection because scope, access, and code needs set the final price. The biggest cost driver is how much of the system must be redesigned or replaced versus reusing main trunks and boots. Material choice and working conditions (attic or crawlspace) add labor, and required permits or testing can add fees. We regularly perform whole-home duct change-outs near Howell and begin with a quick design review instead of guessing. A technician-quality quote should include proper sizing (Manual D) and a plan to test for leakage after sealing.

Key factors your estimator will check:

• Home size and number of supply/return runs
• Access limits: attic height, crawlspace, finished ceilings
• Duct type and insulation level
• Code upgrades, permit fees, and any asbestos or mold handling

Schedule a duct assessment to get an itemized quote and confirm if targeted repairs or air sealing can meet your needs. <br/> Updated: 2026-02-13 <br/> Need help in Howell, MI? Call (810) 215-9902 or book online.

Ductless heating and AC service ranges from $199 to $2,000. Repairing ducts and vents ranges from $249 to $2,499. Thermostat repairs range from $249 to $1,000. Pricing can depend on the brand, and for duct repairs it can also depend on the number of duct runs and the run lengths, including connectors.

To seal a leaking air duct and improve HVAC efficiency, shut off the system and seal accessible seams and joints with UL 181 foil tape or water-based mastic, not cloth duct tape. Most leaks start at connection points like plenums, takeoffs, and register boots, which waste air and pull in dust. A quick check with light smoke helps spot leaks, while a clean, dry surface is key for any seal to hold. For hidden or damaged sections, professional testing and sealing is the smarter path. Our team sees these duct issues often in the South Lyon area.

Do this in order:

• Clean dust and oil from metal, then wipe dry.
• Press UL 181 foil tape tightly over seams; use water-based mastic for gaps, reinforcing openings over 1/4 inch with fiberglass mesh.
• Seal the boot to drywall or subfloor with mastic or acrylic latex caulk.
• Re-insulate any bare runs in unconditioned spaces after the seal cures.

If you notice very low airflow, crushed flex, mold, or suspect asbestos wrap, stop and call a licensed HVAC pro. <br/> Updated: 2026-02-13 <br/> Need help in South Lyon, MI? Call (810) 215-9902 or book online.