Indoor Air
Ductwork Inspection, Sealing & Redesign
Most HVAC problems are really duct problems. We inspect, seal, balance, and redesign where your ducts are failing you.
Call us when
You're dealing with one of these.
- Some rooms are boiling, others are freezing
- The furnace runs constantly but the house is still uncomfortable
- Vents blow cold air even when the furnace is running
- Energy bills don't match the equipment's efficiency rating
- You just finished a basement, addition, or reno and need duct rework
- Visible tears, mouse damage, or disconnected duct sections
What's included
Every ductwork job includes:
- Full duct inspection — including the returns, not just the supplies
- Static pressure and airflow measurements (most installers skip this — it's diagnostic gold)
- Leak detection and sealing (mastic or Aeroseal) on accessible runs
- Balancing dampers to fix room-to-room temperature differences
- Design and install for additions, basement finishes, or undersized returns
- Insulation in unconditioned spaces (attic, crawlspace)
Pricing
Inspection is a flat fee.
Any sealing, balancing, or redesign work is quoted in writing before we proceed.
Warranty
In writing, on every invoice.
2-year labour warranty on sealing and new ductwork runs.
FAQ
Ductwork: your top questions
My furnace is brand new but one room is still cold — why?
Almost always ductwork: undersized returns, a closed or blocked damper, a kinked flex run, an unbalanced system, or a leaky run dumping conditioned air into the attic. Equipment upgrades can't compensate for duct problems.
What is Aeroseal?
A process that pressurizes your ducts and injects an aerosolized sealant that plugs leaks from the inside. Great for inaccessible runs (slab-embedded, walled-in). Not necessary for most homes with accessible basement ductwork — mastic works fine there.
How do I know if my ducts are undersized?
Telltale signs: high static pressure on the furnace, whistling vents, loud blower, short-cycling, or rooms that just never get comfortable. A static pressure test at the service call tells us in about 5 minutes.
Service area
Mississauga and the GTA, plus two hours out.
Greater Toronto Area and up to 2 hours out — London, Kitchener, Barrie, Kingston, Niagara.
Open 24/7
Ready when you are.
Most GTA calls get same-day service. Pick up the phone or drop your postal code — we'll call you back with a real ETA.
Mississauga, ON · Greater Toronto Area and up to 2 hours out — London, Kitchener, Barrie, Kingston, Niagara.