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

Duct Sealing in Murphysboro, IL —
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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 Murphysboro, IL

Your energy bills are higher than they should be for the amount of heating and cooling your home requires in Murphysboro. Certain rooms will not reach the right temperature regardless of how long the HVAC runs in Murphysboro, IL. You have had the equipment checked and it is working correctly in Murphysboro. 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 Murphysboro, 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 Murphysboro.

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 Murphysboro, IL. The Department of Energy estimates that typical residential duct systems lose 20 to 30 percent of conditioned air through leakage in Murphysboro. 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 Murphysboro, IL.

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

Why Correct Sealant Materials Last While Duct Tape Fails in Murphysboro, 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 Murphysboro. A supply duct carrying cold conditioned air through a 130-degree summer attic cycles through extreme temperatures with every cooling cycle in Murphysboro, IL. Standard duct tape adhesive is not formulated for this cycling and fails within a few seasons in Murphysboro. Mastic sealant remains flexible after curing and maintains its seal through years of thermal cycling in Murphysboro, IL. UL 181-rated foil tape maintains adhesion for 20 years or more in normal duct system conditions in Murphysboro.

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Where Leaks Occur

Where Duct Leaks Occur and Why They Develop in Murphysboro, IL

At Every Unsealed Duct Joint Throughout the System in Murphysboro

Every connection between duct sections is a potential leak point in Murphysboro, IL. In most residential installations, these joints were mechanically fastened without sealant during installation in Murphysboro. 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 Murphysboro, IL.

At Branch Takeoffs From the Main Trunk Line in Murphysboro, IL

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

At Register Boot Connections in Walls and Ceilings in Murphysboro

The register boot connects the branch duct run to the wall, ceiling, or floor opening where the supply register mounts in Murphysboro, 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 Murphysboro. Conditioned air escaping at the boot level leaks into the wall or ceiling cavity rather than through the register into the room in Murphysboro, IL.

Why Original Installation Sealant Fails Over Time in Murphysboro, IL

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

What Leakage Costs You

What Duct Leakage Costs You in Murphysboro, 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 Murphysboro, 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 Murphysboro. The conditioned air that leaks out before reaching the register does not reach the room in Murphysboro, 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 Murphysboro. 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 Murphysboro, IL.

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

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

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Our Sealing Process

MBM's Duct Sealing Process in Murphysboro, IL

1

Pressure Testing to Establish Total Leakage in Murphysboro

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

2

Systematic Leak Location Through the Accessible System in Murphysboro, IL

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

3

Correct Sealant Selected for Each Leak Point in Murphysboro

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

4

Every Leak Point Sealed Completely in Murphysboro, IL

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

5

Post-Sealing Pressure Test to Confirm the Result in Murphysboro

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

Sealant Materials

What MBM Uses to Seal Duct Leaks in Murphysboro, IL

Mastic Sealant — The Professional Standard in Murphysboro

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

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

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

Standard Duct Tape Is Never Used in Murphysboro

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

Why MBM

Why Choose MBM Air Duct Cleaning for Duct Sealing in Murphysboro, IL

Pressure Tested Before and After — Documented Improvement in Murphysboro

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

Every Accessible Leak Point Sealed in Murphysboro, IL

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

Correct Materials That Maintain Effectiveness Long Term in Murphysboro

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

Every Sealing Service Guaranteed in Murphysboro, IL

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

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Pricing

Duct Sealing Cost in Murphysboro, IL

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

Small system — up to 10 vents in Murphysboro$300 to $600
Standard residential system — 10 to 20 vents in Murphysboro, IL$500 to $1,000
Large residential system — 20 or more vents in Murphysboro$800 to $1,500+
Aeroseal treatment for inaccessible leaks in Murphysboro, 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 Murphysboro, IL. For a home spending $200 per month on heating and cooling, a 15 percent leakage reduction saves approximately $30 per month in Murphysboro. A sealing service costing $500 to $1,000 pays for itself in energy savings within 18 to 36 months in most cases in Murphysboro, IL. Every month after payback is net return on the investment in Murphysboro.

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

Call now for same-day scheduling in Murphysboro.

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Service Area

Serving Murphysboro, IL and Surrounding Areas

Downtown Murphysboro

Homes, condos, apartments in Murphysboro, IL

North Murphysboro

Full north-side coverage in Murphysboro, IL

South Murphysboro

All south-side communities in Murphysboro

East Murphysboro

East-end homes and properties in Murphysboro, IL

West Murphysboro

Full west-side coverage in Murphysboro

Surrounding Areas

Call to confirm availability in Murphysboro, IL

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FAQ

Duct Sealing FAQs in Murphysboro, IL

The clearest indicators in Murphysboro 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 Murphysboro, IL. Pressure testing is the definitive way to quantify the leakage in your specific system in Murphysboro.
A duct pressure test connects a calibrated fan to the duct system and pressurizes it to a standard test pressure in Murphysboro. The airflow required to maintain that pressure is measured in Murphysboro, IL. The measured airflow represents the total leakage rate of the system in Murphysboro. MBM Air Duct Cleaning performs pressure testing before and after every duct sealing service in Murphysboro, 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 Murphysboro. In systems with particularly poor sealing or failed original sealant, the loss can exceed 30 percent in Murphysboro, IL.
Duct cleaning before duct sealing allows the mastic sealant to bond to clean duct surfaces in Murphysboro. Applying mastic to duct surfaces coated with accumulated dust and debris reduces the bond quality and long-term sealing effectiveness in Murphysboro, IL. MBM Air Duct Cleaning recommends cleaning before sealing when both services are needed and can coordinate both in a single visit in Murphysboro.
Mastic is a water-based sealant specifically formulated for duct system applications in Murphysboro. It remains flexible after curing and maintains its seal through the thermal cycling that duct systems experience during operation in Murphysboro, IL. Standard duct tape uses a rubber-based adhesive that dries and loses adhesion from temperature cycling, failing within a few seasons in Murphysboro.
Yes. Return duct leaks in crawl spaces draw crawl space air including its elevated moisture content into the return airstream in Murphysboro. The additional moisture enters the air handler and is distributed throughout the home in Murphysboro, IL. Indoor relative humidity rises despite the air conditioner running because the additional crawl space moisture load overwhelms the system's dehumidification capacity in Murphysboro.
Aeroseal is a technology that seals duct leaks from inside the pressurized duct system in Murphysboro. Aerosolized sealant particles are introduced into the system and travel to leak points where they accumulate and seal the gap in Murphysboro, 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 Murphysboro.
Mastic duct sealant maintains its sealing effectiveness for the life of the duct system when correctly applied in Murphysboro. UL 181-rated foil tape maintains adhesion for 20 years or more in normal duct system conditions in Murphysboro, IL. Both materials significantly outlast standard duct tape in duct system applications in Murphysboro.
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 Murphysboro. The reduction in leakage translates directly to reduced energy consumption for the same heating and cooling output in Murphysboro, IL.
Yes for systems with return duct leaks in unconditioned spaces in Murphysboro. Return duct leaks in attics and crawl spaces draw unconditioned air including dust, moisture, and mold spores into the return airstream in Murphysboro, IL. Sealing these leaks eliminates the pathway and keeps the circulated air to what is drawn from the living spaces in Murphysboro.
Duct sealing costs in Murphysboro 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 Murphysboro, IL. All pricing confirmed upfront before work begins in Murphysboro.
Yes. Every MBM Air Duct Cleaning duct sealing service is guaranteed in Murphysboro. If the sealing does not produce the expected improvement within the guarantee period, we return and address it at no additional charge in Murphysboro, IL.
Call Today

Ducts Losing Conditioned Air? Call MBM Air Duct Cleaning in Murphysboro, 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 Murphysboro. 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 Murphysboro, IL. Call now for same-day scheduling in Murphysboro.

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Our HVAC & Air Duct Services in Murphysboro, IL

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

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