Duct repair & sealing — Aurora, CO
Your furnace is fine. Your ducts are bleeding.
ASSESSMENT TBD · SEALING TBD · REPAIR PER PROJECT
The average home loses 20–30% of its heated and cooled air through leaky ducts — into attics and crawlspaces, not rooms. In 80011's 1950s–70s homes, it's often worse. Sealing is the highest-ROI comfort fix most homeowners never hear about.
80011 · Oct 2026 — the leaks we find
What's included
Duct services, itemized.
- Duct assessment — visual inspection of accessible ductwork, pressure testing where warranted, written report with photos: TBD
- Duct sealing — mastic and metal tape on every accessible joint, seam, and connection (never "duct tape" — the irony is real): TBD per project
- Duct repair — disconnected runs reconnected, crushed flex replaced, damaged sections rebuilt: quoted per project, in writing
- Return-air fixes — undersized returns are the silent killer of airflow; we measure and correct
- Negative-pressure cleaning — for homes that need it: contained, negative-pressure cleaning with compressed-air agitation (the method that actually works)
- Post-work verification — we re-test and show you the before/after. Sealing you can't measure is a story, not a service
Symptom guide
Signs your ducts are the problem.
- Hot and cold rooms
- The #1 duct symptom. Air meant for the back bedroom is leaking into the attic instead.
- Dust that never stops
- Leaky return ducts pull dusty attic/crawlspace air straight into the system — and your lungs.
- High bills, weak airflow
- You're paying to heat the crawlspace. The furnace runs longer to deliver less comfort.
- Musty or "attic" smells
- Supply leaks create negative pressure that sucks unconditioned air in through every gap.
- New system, same problems
- A new furnace on leaky ducts performs like an old furnace. Ducts first, equipment second.
Sealing vs. cleaning
The honest order of operations.
Everyone asks about duct cleaning. Almost nobody asks about duct sealing — but sealing delivers 5–10x the comfort and savings. Here's our honest take:
- Seal first, always. Leaks waste energy every minute the system runs; dirt just sits there.
- Clean when warranted — post-renovation dust, heavy pet dander, visible buildup, or allergy complaints.
- Our cleaning method: negative pressure with compressed-air agitation — contained, no mess blown through your house.
- We'll talk you out of cleaning if your ducts are just dusty-normal and your money is better spent on sealing.
1960s ranch, original ducts, two rooms that never get comfortable. We've seen this house a hundred times — and sealing fixes it about eighty of them.
Process
Four steps.
Assess
We inspect accessible ductwork, test pressure, and photograph everything. You get the report — problems circled, not vague.
Quote
Written, per-project quote: sealing scope, repair scope, and what each fixes. Approve all of it or part of it.
Seal & repair
Mastic, metal tape, reconnected runs, corrected returns. No "duct tape" — that's a naming tragedy, not a material.
Verify
Re-test, show before/after, and confirm the rooms that were uncomfortable now aren't.
FAQ
Duct questions.
How much does duct sealing cost?
TBD depending on accessibility, linear footage, and whether sections need repair or replacement. The assessment (TBD) tells us exactly what your home needs — most need sealing, not replacement.
How do I know if my ducts are leaking?
Hot/cold rooms, endless dust, high bills with weak airflow, and musty smells are the classic signs. We verify with inspection and pressure testing — no guessing.
Is duct cleaning worth it?
Sometimes — after renovations, with heavy pet dander, or visible buildup. But sealing usually delivers far more. We'll tell you honestly which one your home needs, even if the answer is "neither."
Can you clean ducts with negative pressure?
Yes — negative-pressure cleaning with compressed-air agitation, fully contained. It's the method that actually removes debris instead of relocating it.
Stop heating your attic.
Duct assessment TBD — with photos, pressure readings, and a written quote. The highest-ROI visit we do.