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

Duct Sealing in Lomira, 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 Lomira, WI

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

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

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

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

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Where Leaks Occur

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

At Every Unsealed Duct Joint Throughout the System in Lomira

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

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

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

At Register Boot Connections in Walls and Ceilings in Lomira

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

Why Original Installation Sealant Fails Over Time in Lomira, WI

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

What Leakage Costs You

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

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

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

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Our Sealing Process

MBM's Duct Sealing Process in Lomira, WI

1

Pressure Testing to Establish Total Leakage in Lomira

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

2

Systematic Leak Location Through the Accessible System in Lomira, WI

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

3

Correct Sealant Selected for Each Leak Point in Lomira

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

4

Every Leak Point Sealed Completely in Lomira, WI

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

5

Post-Sealing Pressure Test to Confirm the Result in Lomira

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

Sealant Materials

What MBM Uses to Seal Duct Leaks in Lomira, WI

Mastic Sealant — The Professional Standard in Lomira

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

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

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

Standard Duct Tape Is Never Used in Lomira

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

Why MBM

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

Pressure Tested Before and After — Documented Improvement in Lomira

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

Every Accessible Leak Point Sealed in Lomira, WI

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

Correct Materials That Maintain Effectiveness Long Term in Lomira

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

Every Sealing Service Guaranteed in Lomira, WI

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

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Pricing

Duct Sealing Cost in Lomira, WI

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

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

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

Call now for same-day scheduling in Lomira.

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Service Area

Serving Lomira, WI and Surrounding Areas

Downtown Lomira

Homes, condos, apartments in Lomira, WI

North Lomira

Full north-side coverage in Lomira, WI

South Lomira

All south-side communities in Lomira

East Lomira

East-end homes and properties in Lomira, WI

West Lomira

Full west-side coverage in Lomira

Surrounding Areas

Call to confirm availability in Lomira, WI

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FAQ

Duct Sealing FAQs in Lomira, WI

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

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

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Our HVAC & Air Duct Services in Lomira, WI

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

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