Duct Sealing
Professional duct sealing — close the leaks, save 15-30% on HVAC bills, and improve every room's comfort.
About This Service
Average ductwork loses 25-40% of conditioned air through gaps, joints, and bad connections. We use mastic sealant (the gold standard) plus mesh and tape on accessible joints, and Aeroseal aerosol-based sealant for inaccessible runs (a process that seals from inside the duct system). Tested before and after with a duct blaster for verifiable improvement.nnMost Colorado homes see 15-30% HVAC savings after sealing.
What's Included
- Mastic + Aeroseal sealing methods
- Duct blaster verification testing
- 15-30% HVAC energy savings typical
- Xcel rebates available
Signs You Need Duct Sealing
If any of these sound familiar, it's time to schedule service.
Some rooms barely get airflow
High utility bills
Dust around registers
Ducts in unconditioned spaces
Frequently Asked Questions
Common questions about duct sealing in Colorado.
Can I get a quote for duct sealing?
Yes — pricing depends on the method: mastic sealing for accessible ducts (basement/attic) and Aeroseal for inaccessible runs. Many homes use both. Call for a free quote.
How much will I save?
Typical Colorado homes save 15–30% on HVAC energy after professional sealing, with payback often within 2–4 years.
Why not just use duct tape?
Despite the name, fabric duct tape fails within 1-2 years on ductwork. Mastic sealant lasts 30+ years. Foil tape works but mastic is better. Pros never use cloth duct tape.
What's Aeroseal?
Aeroseal is an aerosol sealant blown through your duct system that seeks out leaks and seals from the inside. It's the only way to seal inaccessible ducts (in walls, between floors, etc).
Does Xcel offer rebates for duct sealing?
Yes — Xcel Energy offers rebates for verified duct sealing in Colorado homes. We help you apply for whatever you qualify for.
Our Professionalism Is Reflected in Our Customer's Feedback.
Don't just take our word for it — hear from Colorado homeowners who trust us with their comfort.
"MrFixer installed our new furnace right before the cold snap. Professional, on time, and incredibly fair pricing. Our home has never been warmer!"
"Called at 11pm with a broken AC in July. They were at our door within an hour. Fixed it fast. Cannot recommend enough for emergency repairs."
"Replaced our 17-year-old AC and added a smart thermostat. The crew showed up exactly on time, walked us through every option without pressure, and finished a full install in one day. Energy bill dropped 30% in the first month. Couldnt be happier."
"We have used MrFixer for annual maintenance for 3 years now. Always thorough, always honest. They found an issue last year that saved us thousands."
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