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Pressure Tested Before & After  ·  Mastic Sealant  ·  Every Leak Point Found  ·  Guaranteed
Duct Sealing · Union Hill-Novelty Hill, WA

Duct Sealing in Union Hill-Novelty Hill, WA —
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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 Union Hill-Novelty Hill, WA

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

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 Union Hill-Novelty Hill, WA. The Department of Energy estimates that typical residential duct systems lose 20 to 30 percent of conditioned air through leakage in Union Hill-Novelty Hill. 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 Union Hill-Novelty Hill, WA.

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

Why Correct Sealant Materials Last While Duct Tape Fails in Union Hill-Novelty Hill, WA

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

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Where Leaks Occur

Where Duct Leaks Occur and Why They Develop in Union Hill-Novelty Hill, WA

At Every Unsealed Duct Joint Throughout the System in Union Hill-Novelty Hill

Every connection between duct sections is a potential leak point in Union Hill-Novelty Hill, WA. In most residential installations, these joints were mechanically fastened without sealant during installation in Union Hill-Novelty Hill. 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 Union Hill-Novelty Hill, WA.

At Branch Takeoffs From the Main Trunk Line in Union Hill-Novelty Hill, WA

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

At Register Boot Connections in Walls and Ceilings in Union Hill-Novelty Hill

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

Why Original Installation Sealant Fails Over Time in Union Hill-Novelty Hill, WA

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

What Leakage Costs You

What Duct Leakage Costs You in Union Hill-Novelty Hill, WA

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 Union Hill-Novelty Hill, WA

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

What Return Duct Leaks Do to Your Indoor Air Quality in Union Hill-Novelty Hill, WA

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

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Our Sealing Process

MBM's Duct Sealing Process in Union Hill-Novelty Hill, WA

1

Pressure Testing to Establish Total Leakage in Union Hill-Novelty Hill

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

2

Systematic Leak Location Through the Accessible System in Union Hill-Novelty Hill, WA

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

3

Correct Sealant Selected for Each Leak Point in Union Hill-Novelty Hill

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

4

Every Leak Point Sealed Completely in Union Hill-Novelty Hill, WA

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

5

Post-Sealing Pressure Test to Confirm the Result in Union Hill-Novelty Hill

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

Sealant Materials

What MBM Uses to Seal Duct Leaks in Union Hill-Novelty Hill, WA

Mastic Sealant — The Professional Standard in Union Hill-Novelty Hill

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

UL 181-Rated Foil Tape for Specific Applications in Union Hill-Novelty Hill, WA

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

Standard Duct Tape Is Never Used in Union Hill-Novelty Hill

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

Why MBM

Why Choose MBM Air Duct Cleaning for Duct Sealing in Union Hill-Novelty Hill, WA

Pressure Tested Before and After — Documented Improvement in Union Hill-Novelty Hill

MBM performs pressure testing before and after every duct sealing service in Union Hill-Novelty Hill, WA. The before and after measurements document the leakage reduction achieved in Union Hill-Novelty Hill. Documented improvement, not assumed improvement in Union Hill-Novelty Hill, WA.

Every Accessible Leak Point Sealed in Union Hill-Novelty Hill, WA

MBM seals every identified leak point in the accessible duct system in Union Hill-Novelty Hill. Not a representative sample. Not the most obvious points only in Union Hill-Novelty Hill, WA. Every identified leak point in Union Hill-Novelty Hill.

Correct Materials That Maintain Effectiveness Long Term in Union Hill-Novelty Hill

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

Every Sealing Service Guaranteed in Union Hill-Novelty Hill, WA

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

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Pricing

Duct Sealing Cost in Union Hill-Novelty Hill, WA

All pricing confirmed upfront before work begins in Union Hill-Novelty Hill. No surprises in Union Hill-Novelty Hill, WA.

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

Pressure tested before and after. Every leak found. Correct materials. Guaranteed. MBM Air Duct Cleaning in Union Hill-Novelty Hill, WA.

Call now for same-day scheduling in Union Hill-Novelty Hill.

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Service Area

Serving Union Hill-Novelty Hill, WA and Surrounding Areas

Downtown Union Hill-Novelty Hill

Homes, condos, apartments in Union Hill-Novelty Hill, WA

North Union Hill-Novelty Hill

Full north-side coverage in Union Hill-Novelty Hill, WA

South Union Hill-Novelty Hill

All south-side communities in Union Hill-Novelty Hill

East Union Hill-Novelty Hill

East-end homes and properties in Union Hill-Novelty Hill, WA

West Union Hill-Novelty Hill

Full west-side coverage in Union Hill-Novelty Hill

Surrounding Areas

Call to confirm availability in Union Hill-Novelty Hill, WA

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FAQ

Duct Sealing FAQs in Union Hill-Novelty Hill, WA

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

Ducts Losing Conditioned Air? Call MBM Air Duct Cleaning in Union Hill-Novelty Hill, WA Today.

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

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Our HVAC & Air Duct Services in Union Hill-Novelty Hill, WA

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

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