Numerous companies advertise HVAC-duct cleaning, claiming that having your ducts cleaned prevents health problems. Before hiring one of these companies, you should ask a few questions. For instance, ...

Years of hands-on HVAC system analysis across Colorado show a clear pattern: indoor air problems rarely start in living spaces—they start inside the ductwork.

If you suspect mold, cleaning ducts won’t do much good. Mold always begins with moisture, and the ducts themselves are unlikely to be the source of the problem. The most likely culprits are the ...

Air duct cleaning can be expensive and it may not improve indoor air quality in your home. Some or all of the mortgage lenders featured on our site are advertising partners of NerdWallet, but this ...