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

Duct Sealing in Martinsville, 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 Martinsville, IL

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

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

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

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

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Where Leaks Occur

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

At Every Unsealed Duct Joint Throughout the System in Martinsville

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

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

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

At Register Boot Connections in Walls and Ceilings in Martinsville

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

Why Original Installation Sealant Fails Over Time in Martinsville, IL

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

What Leakage Costs You

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

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

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

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Our Sealing Process

MBM's Duct Sealing Process in Martinsville, IL

1

Pressure Testing to Establish Total Leakage in Martinsville

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

2

Systematic Leak Location Through the Accessible System in Martinsville, IL

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

3

Correct Sealant Selected for Each Leak Point in Martinsville

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

4

Every Leak Point Sealed Completely in Martinsville, IL

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

5

Post-Sealing Pressure Test to Confirm the Result in Martinsville

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

Sealant Materials

What MBM Uses to Seal Duct Leaks in Martinsville, IL

Mastic Sealant — The Professional Standard in Martinsville

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

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

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

Standard Duct Tape Is Never Used in Martinsville

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

Why MBM

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

Pressure Tested Before and After — Documented Improvement in Martinsville

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

Every Accessible Leak Point Sealed in Martinsville, IL

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

Correct Materials That Maintain Effectiveness Long Term in Martinsville

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

Every Sealing Service Guaranteed in Martinsville, IL

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

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Pricing

Duct Sealing Cost in Martinsville, IL

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

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

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

Call now for same-day scheduling in Martinsville.

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Service Area

Serving Martinsville, IL and Surrounding Areas

Downtown Martinsville

Homes, condos, apartments in Martinsville, IL

North Martinsville

Full north-side coverage in Martinsville, IL

South Martinsville

All south-side communities in Martinsville

East Martinsville

East-end homes and properties in Martinsville, IL

West Martinsville

Full west-side coverage in Martinsville

Surrounding Areas

Call to confirm availability in Martinsville, IL

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FAQ

Duct Sealing FAQs in Martinsville, IL

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

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

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Our HVAC & Air Duct Services in Martinsville, IL

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

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