Crawlspace & Under-Floor Duct Repair
I repair crawlspace and under-floor ductwork: reconnecting fallen runs, replacing crushed sections, and sealing and supporting ducting so heated air reaches the rooms above.
What I do
- Reconnect disconnected and fallen duct runs
- Replace crushed or damaged sections
- Seal leaking joints losing heat to the crawlspace
- Re-support sagging ducting off the ground
- Insulate runs in cold crawlspaces
Common problems I fix
- Ducts disconnected so heat dumps under the floor
- Crushed runs blocking airflow to rooms above
- Cold floors and rooms that never warm up
- Sagging, unsupported, or rodent-damaged ducting
Good-fit projects
- Older homes with under-floor duct distribution
- Cold-floor and uneven-heating complaints
- Homes after crawlspace or foundation work
- Pre-purchase or renovation duct assessments
In homes that distribute heat through the crawlspace, the ducting under the floor does the work no one sees, until rooms go cold. Over time these runs disconnect, get crushed, sag off their supports, or leak at every joint. I repair crawlspace and under-floor ductwork so heated air reaches the rooms above.
Why rooms stay cold while the furnace runs
In a home with under-floor ducting, cold rooms usually mean a duct has come apart or been crushed in the crawlspace, so heated air is dumping into the crawlspace instead of the living space. I trace the runs, reconnect and replace the damaged sections, and seal the joints so the heat goes where it belongs.
What I fix down there
Crawlspace ducting fails in predictable ways: fallen and disconnected runs, crushed sections, sagging unsupported duct, leaking joints, and rodent damage. I reconnect and replace what’s damaged, support the ducting properly off the ground, seal it, and insulate runs in cold crawlspaces.
Common in older Sea to Sky homes
A lot of older homes in the corridor were built with under-floor duct distribution that has had decades to settle, sag, and come apart. A crawlspace duct assessment often explains a stubborn cold-room or high-heating-bill problem.
Where I provide this service
I serve Squamish, Whistler, Pemberton, and nearby Sea to Sky communities. See service areas.
Related services
Frequently Asked Questions
Why are my floors and rooms cold even though the furnace runs?
In homes with under-floor ducting, the cause is often a disconnected or crushed duct in the crawlspace dumping heated air under the floor instead of into the rooms. I reconnect, replace, and reseal the affected runs so heat reaches where it should.
Do you work in tight or low crawlspaces?
Yes. Crawlspace ducting is exactly where a lot of duct problems hide. I access the runs, reconnect and replace damaged sections, support the ducting off the ground, and seal the joints so the system stops leaking heat.