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Pressure Tested Before & After  ·  Mastic Sealant  ·  Every Leak Point Found  ·  Guaranteed
Duct Sealing · Cedar Mill, OR

Duct Sealing in Cedar Mill, OR —
Call Now for Same-Day Scheduling.

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 Cedar Mill, OR

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

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

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

Why Correct Sealant Materials Last While Duct Tape Fails in Cedar Mill, OR

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

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Where Leaks Occur

Where Duct Leaks Occur and Why They Develop in Cedar Mill, OR

At Every Unsealed Duct Joint Throughout the System in Cedar Mill

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

At Branch Takeoffs From the Main Trunk Line in Cedar Mill, OR

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

At Register Boot Connections in Walls and Ceilings in Cedar Mill

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

Why Original Installation Sealant Fails Over Time in Cedar Mill, OR

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

What Leakage Costs You

What Duct Leakage Costs You in Cedar Mill, OR

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 Cedar Mill, OR

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

What Return Duct Leaks Do to Your Indoor Air Quality in Cedar Mill, OR

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

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Our Sealing Process

MBM's Duct Sealing Process in Cedar Mill, OR

1

Pressure Testing to Establish Total Leakage in Cedar Mill

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

2

Systematic Leak Location Through the Accessible System in Cedar Mill, OR

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

3

Correct Sealant Selected for Each Leak Point in Cedar Mill

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

4

Every Leak Point Sealed Completely in Cedar Mill, OR

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

5

Post-Sealing Pressure Test to Confirm the Result in Cedar Mill

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

Sealant Materials

What MBM Uses to Seal Duct Leaks in Cedar Mill, OR

Mastic Sealant — The Professional Standard in Cedar Mill

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

UL 181-Rated Foil Tape for Specific Applications in Cedar Mill, OR

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

Standard Duct Tape Is Never Used in Cedar Mill

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

Why MBM

Why Choose MBM Air Duct Cleaning for Duct Sealing in Cedar Mill, OR

Pressure Tested Before and After — Documented Improvement in Cedar Mill

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

Every Accessible Leak Point Sealed in Cedar Mill, OR

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

Correct Materials That Maintain Effectiveness Long Term in Cedar Mill

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

Every Sealing Service Guaranteed in Cedar Mill, OR

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

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Pricing

Duct Sealing Cost in Cedar Mill, OR

All pricing confirmed upfront before work begins in Cedar Mill. No surprises in Cedar Mill, OR.

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

Pressure tested before and after. Every leak found. Correct materials. Guaranteed. MBM Air Duct Cleaning in Cedar Mill, OR.

Call now for same-day scheduling in Cedar Mill.

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Service Area

Serving Cedar Mill, OR and Surrounding Areas

Downtown Cedar Mill

Homes, condos, apartments in Cedar Mill, OR

North Cedar Mill

Full north-side coverage in Cedar Mill, OR

South Cedar Mill

All south-side communities in Cedar Mill

East Cedar Mill

East-end homes and properties in Cedar Mill, OR

West Cedar Mill

Full west-side coverage in Cedar Mill

Surrounding Areas

Call to confirm availability in Cedar Mill, OR

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FAQ

Duct Sealing FAQs in Cedar Mill, OR

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

Ducts Losing Conditioned Air? Call MBM Air Duct Cleaning in Cedar Mill, OR Today.

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

Call Now — (888) 216-9551

Our HVAC & Air Duct Services in Cedar Mill, OR

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

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