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Pressure Tested Before & After  ·  Mastic Sealant  ·  Every Leak Point Found  ·  Guaranteed
Duct Sealing · Glen Ellyn, IL

Duct Sealing in Glen Ellyn, IL —
Call Now for Same-Day Scheduling.

Pressure testing before sealing quantifies total leakage. Every leak point located and sealed with correct materials. Post-sealing pressure test documents the improvement. Every service guaranteed.

Pressure Tested Before & After
Mastic Sealant
Every Leak Point Found
Guaranteed
Professional Duct Sealing

Professional Duct Sealing in Glen Ellyn, IL

Your energy bills are higher than they should be for the amount of heating and cooling your home requires in Glen Ellyn. Certain rooms will not reach the right temperature regardless of how long the HVAC runs in Glen Ellyn, IL. You have had the equipment checked and it is working correctly in Glen Ellyn. If the equipment is fine but the home is not comfortable and the bills are high, the problem is almost certainly in the distribution system in Glen Ellyn, IL. Specifically, in duct leaks that are allowing conditioned air to escape into unconditioned attic or crawl space before it reaches the rooms you are paying to heat and cool in Glen Ellyn.

Duct leakage happens at every unsealed joint between duct sections, at every branch takeoff from the trunk line, at every register boot connection in the walls and ceilings, and at the connections where the duct system meets the air handler in Glen Ellyn, IL. The Department of Energy estimates that typical residential duct systems lose 20 to 30 percent of conditioned air through leakage in Glen Ellyn. For a home spending $200 per month on heating and cooling, that is $40 to $60 per month escaping through duct leaks to the attic or crawl space in Glen Ellyn, IL.

MBM Air Duct Cleaning finds and seals duct leaks throughout Glen Ellyn, IL in Glen Ellyn. Pressure testing before sealing to quantify the total leakage in Glen Ellyn, IL. Systematic identification of every specific leak point through the accessible system in Glen Ellyn. Correct sealant materials applied to every leak point in Glen Ellyn, IL. Post-sealing pressure testing to document the improvement with measured numbers in Glen Ellyn. And a guarantee on every sealing service in Glen Ellyn, IL. Call now for same-day scheduling in Glen Ellyn.

Why Correct Sealant Materials Last While Duct Tape Fails in Glen Ellyn, IL

Standard duct tape uses a rubber-based adhesive that performs at room temperature but dries and loses adhesion when repeatedly exposed to the temperature extremes that duct systems experience during HVAC operation in Glen Ellyn. A supply duct carrying cold conditioned air through a 130-degree summer attic cycles through extreme temperatures with every cooling cycle in Glen Ellyn, IL. Standard duct tape adhesive is not formulated for this cycling and fails within a few seasons in Glen Ellyn. Mastic sealant remains flexible after curing and maintains its seal through years of thermal cycling in Glen Ellyn, IL. UL 181-rated foil tape maintains adhesion for 20 years or more in normal duct system conditions in Glen Ellyn.

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Where Leaks Occur

Where Duct Leaks Occur and Why They Develop in Glen Ellyn, IL

At Every Unsealed Duct Joint Throughout the System in Glen Ellyn

Every connection between duct sections is a potential leak point in Glen Ellyn, IL. In most residential installations, these joints were mechanically fastened without sealant during installation in Glen Ellyn. Over years of thermal cycling that expands and contracts the ductwork with every HVAC cycle, even joints that were initially sealed with standard duct tape have failed as the tape dried and lost adhesion in Glen Ellyn, IL.

At Branch Takeoffs From the Main Trunk Line in Glen Ellyn, IL

Branch takeoffs split conditioned air from the main trunk line into the individual branch runs serving each room in Glen Ellyn. They have multiple edges and angles that create significant potential leak area if not correctly sealed in Glen Ellyn, IL. Branch takeoff leaks are among the largest individual leak points in typical residential duct systems in Glen Ellyn.

At Register Boot Connections in Walls and Ceilings in Glen Ellyn

The register boot connects the branch duct run to the wall, ceiling, or floor opening where the supply register mounts in Glen Ellyn, IL. The connection between the flexible duct and the boot collar and the connection between the boot and the surrounding framing are both common significant leak points in Glen Ellyn. Conditioned air escaping at the boot level leaks into the wall or ceiling cavity rather than through the register into the room in Glen Ellyn, IL.

Why Original Installation Sealant Fails Over Time in Glen Ellyn, IL

Systems sealed with standard duct tape develop leakage as the tape dries, cracks, and loses adhesion from temperature cycling in Glen Ellyn. Standard duct tape on duct joints typically fails within three to five seasons of thermal cycling in Glen Ellyn, IL. Joints that were sealed with standard tape appear sealed when first applied and are open to leakage again within a few years in Glen Ellyn.

What Leakage Costs You

What Duct Leakage Costs You in Glen Ellyn, IL

20–30%
DOE: Conditioned Air Lost
$40–$60
Per Month Wasted at $200/mo
$600+
Annual Waste at $200/mo Budget

How Leaking Ducts Create Comfort Problems Room by Room in Glen Ellyn, IL

Supply duct leakage between the trunk line and the registers means rooms furthest from the air handler receive less conditioned air than they were designed to receive in Glen Ellyn. The conditioned air that leaks out before reaching the register does not reach the room in Glen Ellyn, IL. Rooms at the end of long duct runs with multiple leak points along the way receive the cumulative effect of all those leaks in Glen Ellyn. The room that is always too hot in summer and too cold in winter is often at the end of a duct run with multiple unsealed joints in Glen Ellyn, IL.

What Return Duct Leaks Do to Your Indoor Air Quality in Glen Ellyn, IL

Return duct leaks draw air from the surrounding unconditioned space into the return airstream in Glen Ellyn. A return duct leak in an attic draws hot, dusty attic air into the air handler in summer in Glen Ellyn, IL. A return duct leak in a crawl space draws crawl space air including moisture, mold spores, and soil particulate into the system in Glen Ellyn. This unconditioned air bypasses the filter and is distributed throughout the home in Glen Ellyn, IL.

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Our Sealing Process

MBM's Duct Sealing Process in Glen Ellyn, IL

1

Pressure Testing to Establish Total Leakage in Glen Ellyn

MBM Air Duct Cleaning performs a duct pressure test before any sealing begins in Glen Ellyn, IL. A calibrated fan is connected to the duct system and pressurized to a standard test pressure in Glen Ellyn. The measured airflow represents the total leakage rate and provides the baseline for comparing with the post-sealing result in Glen Ellyn, IL.

2

Systematic Leak Location Through the Accessible System in Glen Ellyn, IL

With the system pressurized, MBM technicians work through the accessible duct system to locate every specific leak point in Glen Ellyn. Every branch takeoff. Every duct joint. Every register boot connection. Every plenum seam and air handler connection in Glen Ellyn, IL. Every identified leak point is marked for sealing in Glen Ellyn.

3

Correct Sealant Selected for Each Leak Point in Glen Ellyn

Mastic sealant for most duct joint and connection applications in Glen Ellyn, IL. UL 181-rated foil tape for specific sheet metal seam applications in Glen Ellyn. The correct material for the specific application in Glen Ellyn, IL.

4

Every Leak Point Sealed Completely in Glen Ellyn, IL

MBM systematically seals every identified leak point in the accessible duct system in Glen Ellyn. Mastic applied at the correct thickness to cover the full joint gap and bond to the duct surfaces on both sides in Glen Ellyn, IL. Every identified leak point addressed before the post-sealing pressure test in Glen Ellyn.

5

Post-Sealing Pressure Test to Confirm the Result in Glen Ellyn

After all identified leak points are sealed, MBM repeats the pressure test to measure the post-sealing leakage rate in Glen Ellyn, IL. The before and after measurements quantify the leakage reduction achieved by the sealing in Glen Ellyn. Documented evidence of the result provided to the homeowner in Glen Ellyn, IL.

Sealant Materials

What MBM Uses to Seal Duct Leaks in Glen Ellyn, IL

Mastic Sealant — The Professional Standard in Glen Ellyn

Mastic is a water-based sealant specifically formulated for duct system applications in Glen Ellyn, IL. It remains flexible after curing, maintaining its seal through the thermal cycling that duct systems experience in Glen Ellyn. It does not dry out, crack, or lose adhesion from temperature cycling the way standard duct tape does in Glen Ellyn, IL.

UL 181-Rated Foil Tape for Specific Applications in Glen Ellyn, IL

UL 181-rated foil tape is tested and rated specifically for HVAC duct applications in Glen Ellyn. Unlike standard duct tape, it maintains its adhesion through the temperature cycling of duct system operation in Glen Ellyn, IL. Appropriate for specific sheet metal seam applications in Glen Ellyn.

Standard Duct Tape Is Never Used in Glen Ellyn

Standard silver duct tape is not rated for duct system applications in Glen Ellyn, IL. Its rubber-based adhesive dries and loses adhesion from temperature cycling in Glen Ellyn. MBM Air Duct Cleaning never uses standard duct tape for duct sealing work in Glen Ellyn, IL.

Why MBM

Why Choose MBM Air Duct Cleaning for Duct Sealing in Glen Ellyn, IL

Pressure Tested Before and After — Documented Improvement in Glen Ellyn

MBM performs pressure testing before and after every duct sealing service in Glen Ellyn, IL. The before and after measurements document the leakage reduction achieved in Glen Ellyn. Documented improvement, not assumed improvement in Glen Ellyn, IL.

Every Accessible Leak Point Sealed in Glen Ellyn, IL

MBM seals every identified leak point in the accessible duct system in Glen Ellyn. Not a representative sample. Not the most obvious points only in Glen Ellyn, IL. Every identified leak point in Glen Ellyn.

Correct Materials That Maintain Effectiveness Long Term in Glen Ellyn

Mastic sealant and UL 181-rated foil tape that maintain their effectiveness through the thermal cycling of long-term HVAC operation in Glen Ellyn, IL. Never standard duct tape in Glen Ellyn.

Every Sealing Service Guaranteed in Glen Ellyn, IL

Every MBM Air Duct Cleaning duct sealing service is guaranteed in Glen Ellyn. If the sealing does not produce the expected improvement within the guarantee period, we return and address it at no additional charge in Glen Ellyn, IL.

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Pricing

Duct Sealing Cost in Glen Ellyn, IL

All pricing confirmed upfront before work begins in Glen Ellyn. No surprises in Glen Ellyn, IL.

Small system — up to 10 vents in Glen Ellyn$300 to $600
Standard residential system — 10 to 20 vents in Glen Ellyn, IL$500 to $1,000
Large residential system — 20 or more vents in Glen Ellyn$800 to $1,500+
Aeroseal treatment for inaccessible leaks in Glen Ellyn, IL$1,500 to $3,000+

A sealing service that reduces leakage by 15 to 20 percentage points returns that proportional energy cost reduction on every subsequent energy bill in Glen Ellyn, IL. For a home spending $200 per month on heating and cooling, a 15 percent leakage reduction saves approximately $30 per month in Glen Ellyn. A sealing service costing $500 to $1,000 pays for itself in energy savings within 18 to 36 months in most cases in Glen Ellyn, IL. Every month after payback is net return on the investment in Glen Ellyn.

Pressure tested before and after. Every leak found. Correct materials. Guaranteed. MBM Air Duct Cleaning in Glen Ellyn, IL.

Call now for same-day scheduling in Glen Ellyn.

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Service Area

Serving Glen Ellyn, IL and Surrounding Areas

Downtown Glen Ellyn

Homes, condos, apartments in Glen Ellyn, IL

North Glen Ellyn

Full north-side coverage in Glen Ellyn, IL

South Glen Ellyn

All south-side communities in Glen Ellyn

East Glen Ellyn

East-end homes and properties in Glen Ellyn, IL

West Glen Ellyn

Full west-side coverage in Glen Ellyn

Surrounding Areas

Call to confirm availability in Glen Ellyn, IL

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FAQ

Duct Sealing FAQs in Glen Ellyn, IL

The clearest indicators in Glen Ellyn are energy bills that seem high relative to your usage, rooms that consistently will not reach the right temperature, an HVAC system that runs continuously without achieving comfort setpoint, higher than expected dust levels throughout the home, and humidity problems during cooling season in Glen Ellyn, IL. Pressure testing is the definitive way to quantify the leakage in your specific system in Glen Ellyn.
A duct pressure test connects a calibrated fan to the duct system and pressurizes it to a standard test pressure in Glen Ellyn. The airflow required to maintain that pressure is measured in Glen Ellyn, IL. The measured airflow represents the total leakage rate of the system in Glen Ellyn. MBM Air Duct Cleaning performs pressure testing before and after every duct sealing service in Glen Ellyn, IL.
The Department of Energy estimates that typical residential duct systems lose 20 to 30 percent of conditioned air through leakage before it reaches the living spaces in Glen Ellyn. In systems with particularly poor sealing or failed original sealant, the loss can exceed 30 percent in Glen Ellyn, IL.
Duct cleaning before duct sealing allows the mastic sealant to bond to clean duct surfaces in Glen Ellyn. Applying mastic to duct surfaces coated with accumulated dust and debris reduces the bond quality and long-term sealing effectiveness in Glen Ellyn, IL. MBM Air Duct Cleaning recommends cleaning before sealing when both services are needed and can coordinate both in a single visit in Glen Ellyn.
Mastic is a water-based sealant specifically formulated for duct system applications in Glen Ellyn. It remains flexible after curing and maintains its seal through the thermal cycling that duct systems experience during operation in Glen Ellyn, IL. Standard duct tape uses a rubber-based adhesive that dries and loses adhesion from temperature cycling, failing within a few seasons in Glen Ellyn.
Yes. Return duct leaks in crawl spaces draw crawl space air including its elevated moisture content into the return airstream in Glen Ellyn. The additional moisture enters the air handler and is distributed throughout the home in Glen Ellyn, IL. Indoor relative humidity rises despite the air conditioner running because the additional crawl space moisture load overwhelms the system's dehumidification capacity in Glen Ellyn.
Aeroseal is a technology that seals duct leaks from inside the pressurized duct system in Glen Ellyn. Aerosolized sealant particles are introduced into the system and travel to leak points where they accumulate and seal the gap in Glen Ellyn, IL. It is needed when significant leakage exists in duct sections in wall cavities or ceiling plenums that cannot be physically accessed for manual sealant application in Glen Ellyn.
Mastic duct sealant maintains its sealing effectiveness for the life of the duct system when correctly applied in Glen Ellyn. UL 181-rated foil tape maintains adhesion for 20 years or more in normal duct system conditions in Glen Ellyn, IL. Both materials significantly outlast standard duct tape in duct system applications in Glen Ellyn.
Yes. Sealing the duct system reduces the conditioned air loss the system was experiencing and delivers more of the conditioned air the HVAC produces to the living spaces in Glen Ellyn. The reduction in leakage translates directly to reduced energy consumption for the same heating and cooling output in Glen Ellyn, IL.
Yes for systems with return duct leaks in unconditioned spaces in Glen Ellyn. Return duct leaks in attics and crawl spaces draw unconditioned air including dust, moisture, and mold spores into the return airstream in Glen Ellyn, IL. Sealing these leaks eliminates the pathway and keeps the circulated air to what is drawn from the living spaces in Glen Ellyn.
Duct sealing costs in Glen Ellyn range from $300 to $600 for smaller systems, $500 to $1,000 for standard residential systems, $800 to $1,500 and above for larger systems, and $1,500 to $3,000 and above for systems requiring Aeroseal treatment in Glen Ellyn, IL. All pricing confirmed upfront before work begins in Glen Ellyn.
Yes. Every MBM Air Duct Cleaning duct sealing service is guaranteed in Glen Ellyn. If the sealing does not produce the expected improvement within the guarantee period, we return and address it at no additional charge in Glen Ellyn, IL.
Call Today

Ducts Losing Conditioned Air? Call MBM Air Duct Cleaning in Glen Ellyn, IL Today.

Duct leakage pays for conditioned air that heats and cools your attic and crawl space instead of your living spaces every month in Glen Ellyn. MBM Air Duct Cleaning quantifies the leakage with pressure testing, locates every specific leak point, seals every accessible leak with correct materials, confirms the improvement with post-sealing testing, and guarantees every service in Glen Ellyn, IL. Call now for same-day scheduling in Glen Ellyn.

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Our HVAC & Air Duct Services in Glen Ellyn, IL

Duct SealingHVAC RepairAir Conditioning RepairDryer Vent CleaningFurnace RepairHeat Pump RepairEmergency HVAC RepairCommercial HVAC RepairHVAC InstallationHVAC Replacement

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