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

Duct Sealing in Thiensville, WI —
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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 Thiensville, WI

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

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

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

Why Correct Sealant Materials Last While Duct Tape Fails in Thiensville, WI

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

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Where Leaks Occur

Where Duct Leaks Occur and Why They Develop in Thiensville, WI

At Every Unsealed Duct Joint Throughout the System in Thiensville

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

At Branch Takeoffs From the Main Trunk Line in Thiensville, WI

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

At Register Boot Connections in Walls and Ceilings in Thiensville

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

Why Original Installation Sealant Fails Over Time in Thiensville, WI

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

What Leakage Costs You

What Duct Leakage Costs You in Thiensville, WI

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 Thiensville, WI

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 Thiensville. The conditioned air that leaks out before reaching the register does not reach the room in Thiensville, WI. Rooms at the end of long duct runs with multiple leak points along the way receive the cumulative effect of all those leaks in Thiensville. 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 Thiensville, WI.

What Return Duct Leaks Do to Your Indoor Air Quality in Thiensville, WI

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

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Our Sealing Process

MBM's Duct Sealing Process in Thiensville, WI

1

Pressure Testing to Establish Total Leakage in Thiensville

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

2

Systematic Leak Location Through the Accessible System in Thiensville, WI

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

3

Correct Sealant Selected for Each Leak Point in Thiensville

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

4

Every Leak Point Sealed Completely in Thiensville, WI

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

5

Post-Sealing Pressure Test to Confirm the Result in Thiensville

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

Sealant Materials

What MBM Uses to Seal Duct Leaks in Thiensville, WI

Mastic Sealant — The Professional Standard in Thiensville

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

UL 181-Rated Foil Tape for Specific Applications in Thiensville, WI

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

Standard Duct Tape Is Never Used in Thiensville

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

Why MBM

Why Choose MBM Air Duct Cleaning for Duct Sealing in Thiensville, WI

Pressure Tested Before and After — Documented Improvement in Thiensville

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

Every Accessible Leak Point Sealed in Thiensville, WI

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

Correct Materials That Maintain Effectiveness Long Term in Thiensville

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

Every Sealing Service Guaranteed in Thiensville, WI

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

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Pricing

Duct Sealing Cost in Thiensville, WI

All pricing confirmed upfront before work begins in Thiensville. No surprises in Thiensville, WI.

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

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

Call now for same-day scheduling in Thiensville.

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Service Area

Serving Thiensville, WI and Surrounding Areas

Downtown Thiensville

Homes, condos, apartments in Thiensville, WI

North Thiensville

Full north-side coverage in Thiensville, WI

South Thiensville

All south-side communities in Thiensville

East Thiensville

East-end homes and properties in Thiensville, WI

West Thiensville

Full west-side coverage in Thiensville

Surrounding Areas

Call to confirm availability in Thiensville, WI

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FAQ

Duct Sealing FAQs in Thiensville, WI

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

Ducts Losing Conditioned Air? Call MBM Air Duct Cleaning in Thiensville, WI Today.

Duct leakage pays for conditioned air that heats and cools your attic and crawl space instead of your living spaces every month in Thiensville. 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 Thiensville, WI. Call now for same-day scheduling in Thiensville.

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Our HVAC & Air Duct Services in Thiensville, WI

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

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