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

Duct Sealing in Ellicott, CO —
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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 Ellicott, CO

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

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

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

Why Correct Sealant Materials Last While Duct Tape Fails in Ellicott, CO

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

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Where Leaks Occur

Where Duct Leaks Occur and Why They Develop in Ellicott, CO

At Every Unsealed Duct Joint Throughout the System in Ellicott

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

At Branch Takeoffs From the Main Trunk Line in Ellicott, CO

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

At Register Boot Connections in Walls and Ceilings in Ellicott

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

Why Original Installation Sealant Fails Over Time in Ellicott, CO

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

What Leakage Costs You

What Duct Leakage Costs You in Ellicott, CO

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 Ellicott, CO

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

What Return Duct Leaks Do to Your Indoor Air Quality in Ellicott, CO

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

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Our Sealing Process

MBM's Duct Sealing Process in Ellicott, CO

1

Pressure Testing to Establish Total Leakage in Ellicott

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

2

Systematic Leak Location Through the Accessible System in Ellicott, CO

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

3

Correct Sealant Selected for Each Leak Point in Ellicott

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

4

Every Leak Point Sealed Completely in Ellicott, CO

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

5

Post-Sealing Pressure Test to Confirm the Result in Ellicott

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

Sealant Materials

What MBM Uses to Seal Duct Leaks in Ellicott, CO

Mastic Sealant — The Professional Standard in Ellicott

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

UL 181-Rated Foil Tape for Specific Applications in Ellicott, CO

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

Standard Duct Tape Is Never Used in Ellicott

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

Why MBM

Why Choose MBM Air Duct Cleaning for Duct Sealing in Ellicott, CO

Pressure Tested Before and After — Documented Improvement in Ellicott

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

Every Accessible Leak Point Sealed in Ellicott, CO

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

Correct Materials That Maintain Effectiveness Long Term in Ellicott

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

Every Sealing Service Guaranteed in Ellicott, CO

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

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Pricing

Duct Sealing Cost in Ellicott, CO

All pricing confirmed upfront before work begins in Ellicott. No surprises in Ellicott, CO.

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

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

Call now for same-day scheduling in Ellicott.

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Service Area

Serving Ellicott, CO and Surrounding Areas

Downtown Ellicott

Homes, condos, apartments in Ellicott, CO

North Ellicott

Full north-side coverage in Ellicott, CO

South Ellicott

All south-side communities in Ellicott

East Ellicott

East-end homes and properties in Ellicott, CO

West Ellicott

Full west-side coverage in Ellicott

Surrounding Areas

Call to confirm availability in Ellicott, CO

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FAQ

Duct Sealing FAQs in Ellicott, CO

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

Ducts Losing Conditioned Air? Call MBM Air Duct Cleaning in Ellicott, CO Today.

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

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Our HVAC & Air Duct Services in Ellicott, CO

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

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