Question 1

How Can I Seal a Leaking Air Duct to Improve HVAC Efficiency?

Accepted Answer

You can seal a leaking air duct effectively with Aeroseal, a professional process that seals leaks from the inside to boost HVAC efficiency. Most efficiency loss comes from hidden gaps at duct seams that let conditioned air escape before it reaches rooms. With Aeroseal, we run a diagnostic pretest to measure your exact leakage percentage, inject sealant particles that only stick to leaks, and finish in about an hour with just 1–2 oz. of material left in the ducts, then show your before-and-after results on a computer analysis. This inside-out method avoids opening walls, can save up to 30 percent on energy, and comes with our quality duct sealing guarantee. We perform this work across the Chicago area, including Morton Grove, often in older homes where access is tight. If ducts are damaged and reachable, repair or replace sections; if leaks are hidden, Aeroseal is the clean fix. On test day, the sharp drop in CFM leakage is your proof it worked. Skip tapes on concealed ducts and start with a professional leakage test to confirm the problem.
Updated: 2026-04-02
Need help in Morton Grove, IL? Call (847) 440-5642 or book online. "From the thoughtful estimating process to the minimally invasive duct placements and attention to detail, even the clean up - we couldn't have asked for a better experience." — Adam B.

Question 2

How much does air duct replacement cost for a typical home?

Accepted Answer

Air duct replacement cost for a typical home varies widely and is confirmed only after an on-site inspection. The biggest cost drivers are the size of the system, how complex the layout is, and how easy the ducts are to reach. Many homes don’t need full replacement; if the ductwork is structurally sound but leaky or dirty, Aeroseal duct sealing or professional duct cleaning can restore comfort and efficiency. In the Wilmette area, older homes often have hidden runs behind plaster, which can affect labor time and material choices. We provide free estimates with no-surprise pricing. Expect pricing to reflect these specifics: - Total duct length and number of runs to be replaced - Material selected (sheet metal, flex, or ductboard) and fittings - Access conditions (attic, crawl space, finished walls/ceilings) - Added work like new boots/registers or return-air changes - Post-work testing and balancing, or choosing Aeroseal as an alternative If you’re weighing repair vs. replacement, start with a duct leakage test to pinpoint what truly needs work.
Updated: 2026-03-28
Need help in Wilmette, IL? Call (847) 440-5642 or book online. "Greg was courteous, efficient and knowledgeable. He replaced an old piece of ductwork in my HVAC system with a custom made duct and vent box." — Maurine B.

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