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

Duct Sealing in Clewiston, FL —
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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 Clewiston, FL

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

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

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

Why Correct Sealant Materials Last While Duct Tape Fails in Clewiston, FL

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

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Where Leaks Occur

Where Duct Leaks Occur and Why They Develop in Clewiston, FL

At Every Unsealed Duct Joint Throughout the System in Clewiston

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

At Branch Takeoffs From the Main Trunk Line in Clewiston, FL

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

At Register Boot Connections in Walls and Ceilings in Clewiston

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

Why Original Installation Sealant Fails Over Time in Clewiston, FL

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

What Leakage Costs You

What Duct Leakage Costs You in Clewiston, FL

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 Clewiston, FL

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

What Return Duct Leaks Do to Your Indoor Air Quality in Clewiston, FL

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

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Our Sealing Process

MBM's Duct Sealing Process in Clewiston, FL

1

Pressure Testing to Establish Total Leakage in Clewiston

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

2

Systematic Leak Location Through the Accessible System in Clewiston, FL

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

3

Correct Sealant Selected for Each Leak Point in Clewiston

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

4

Every Leak Point Sealed Completely in Clewiston, FL

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

5

Post-Sealing Pressure Test to Confirm the Result in Clewiston

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

Sealant Materials

What MBM Uses to Seal Duct Leaks in Clewiston, FL

Mastic Sealant — The Professional Standard in Clewiston

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

UL 181-Rated Foil Tape for Specific Applications in Clewiston, FL

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

Standard Duct Tape Is Never Used in Clewiston

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

Why MBM

Why Choose MBM Air Duct Cleaning for Duct Sealing in Clewiston, FL

Pressure Tested Before and After — Documented Improvement in Clewiston

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

Every Accessible Leak Point Sealed in Clewiston, FL

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

Correct Materials That Maintain Effectiveness Long Term in Clewiston

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

Every Sealing Service Guaranteed in Clewiston, FL

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

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Pricing

Duct Sealing Cost in Clewiston, FL

All pricing confirmed upfront before work begins in Clewiston. No surprises in Clewiston, FL.

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

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

Call now for same-day scheduling in Clewiston.

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Service Area

Serving Clewiston, FL and Surrounding Areas

Downtown Clewiston

Homes, condos, apartments in Clewiston, FL

North Clewiston

Full north-side coverage in Clewiston, FL

South Clewiston

All south-side communities in Clewiston

East Clewiston

East-end homes and properties in Clewiston, FL

West Clewiston

Full west-side coverage in Clewiston

Surrounding Areas

Call to confirm availability in Clewiston, FL

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FAQ

Duct Sealing FAQs in Clewiston, FL

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

Ducts Losing Conditioned Air? Call MBM Air Duct Cleaning in Clewiston, FL Today.

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

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Our HVAC & Air Duct Services in Clewiston, FL

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

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