Leaky ducts quietly waste money and comfort. On Aeroseal day, we prep your system, run a pre-test so you see the baseline, inject a computer-controlled sealant inside the ductwork, and verify results with a post-test and printed report. Most homes see a major leakage reduction—often in the 70–90% range (NREL). Learn more about the service on our Aeroseal page.

Why seal ducts at all?

Even small leaks add up. ENERGY STAR notes that leaky ducts can reduce heating and cooling efficiency by ~20%. Sealing restores performance and can lower energy use while improving comfort room-to-room.

What to do before we arrive

• Clear access to the furnace/air handler and main returns.
• Plan for 4–8 hours on a typical Utah County home (size/layout can vary).
• If you’re also booking air duct cleaning, we do that first so sealing locks in a clean system and gives cleaner before/after data.

Pro tip: Combining Cleaning + Aeroseal in one visit often delivers the biggest comfort jump.

Step-by-step: Your Aeroseal install day

1) Walkthrough & protection

We lay down floor protection, mask supply/return registers as needed, and stage the Aeroseal equipment near the air handler.

2) Pre-seal leakage test (baseline)

We pressurize the duct system to the standard 25 Pascals and measure leakage in CFM25 (cubic feet per minute at 25 Pa). This provides a hard number to compare before/after and aligns with common code testing practices (PNNL Building America guide).

3) System isolation & setup

We temporarily block the coil and isolate the ducts so sealant particles go only where the leaks are. The software maps leak points in real time.

4) Computer-controlled sealing

The Aeroseal machine introduces a water-based aerosol sealant into the duct interior. Particles accumulate at leak edges and bridge the gap—no cutting open walls or ceilings required (NREL).

5) Live progress you can see

You’ll see a live graph of leakage dropping as the system seals. We target a dramatic reduction—what most homeowners experience is ~70–90% fewer leaks (NREL).

6) Post-seal test & report

We repeat the CFM25 test at 25 Pa and print your before/after report. You keep the documentation for your records (and any incentive paperwork, if applicable).

What results should I expect?

• Far less leakage: Typical results are 70–90% reduction with a certificate of completion (NREL).
• Higher delivered airflow & comfort: Sealed ducts help more conditioned air reach rooms—smoothing hot/cold spots (ENERGY STAR).
• Energy savings potential: Reducing leakage means your system works less to maintain setpoint.

Cleaning + Aeroseal = best-practice sequence

We recommend professional air duct cleaning before sealing so you lock in a clean system and avoid embedding debris at leak edges. For the full picture, read Air Duct Cleaning + Aeroseal: The Ultimate Energy-Saving Duo.

How long does it last?

Inside-the-duct sealing has strong third-party backing; aerosol-based methods regularly achieve 70–90% leak reduction and are designed for durable performance (NREL).

FAQs

Will it make a mess?
No—this is an inside-the-duct process. We protect floors and registers; the sealant is contained within the ductwork, and we ventilate the space as standard practice.

Does it smell?
There can be a mild, short-lived odor during sealing. We keep areas ventilated; it dissipates quickly after we’re done.

Do I need a Duct Blaster test if I’m not building a new home?
You don’t need it for code on an existing home, but the pre/post test is your proof that sealing worked (see CFM25/25 Pa details in the PNNL guide).

Are there rebates or tax credits?
Incentives change. IRS 25C currently recognizes insulation and air sealing materials/systems that meet IECC criteria (subject to annual caps and eligibility). We’ll point you to current resources and provide documentation—always confirm with your tax professional.