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

Duct Sealing in Altamonte Springs, 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 Altamonte Springs, FL

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

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

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

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

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Where Leaks Occur

Where Duct Leaks Occur and Why They Develop in Altamonte Springs, FL

At Every Unsealed Duct Joint Throughout the System in Altamonte Springs

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

At Branch Takeoffs From the Main Trunk Line in Altamonte Springs, FL

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

At Register Boot Connections in Walls and Ceilings in Altamonte Springs

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

Why Original Installation Sealant Fails Over Time in Altamonte Springs, FL

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

What Leakage Costs You

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

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

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

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Our Sealing Process

MBM's Duct Sealing Process in Altamonte Springs, FL

1

Pressure Testing to Establish Total Leakage in Altamonte Springs

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

2

Systematic Leak Location Through the Accessible System in Altamonte Springs, FL

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

3

Correct Sealant Selected for Each Leak Point in Altamonte Springs

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

4

Every Leak Point Sealed Completely in Altamonte Springs, FL

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

5

Post-Sealing Pressure Test to Confirm the Result in Altamonte Springs

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

Sealant Materials

What MBM Uses to Seal Duct Leaks in Altamonte Springs, FL

Mastic Sealant — The Professional Standard in Altamonte Springs

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

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

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

Standard Duct Tape Is Never Used in Altamonte Springs

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

Why MBM

Why Choose MBM Air Duct Cleaning for Duct Sealing in Altamonte Springs, FL

Pressure Tested Before and After — Documented Improvement in Altamonte Springs

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

Every Accessible Leak Point Sealed in Altamonte Springs, FL

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

Correct Materials That Maintain Effectiveness Long Term in Altamonte Springs

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

Every Sealing Service Guaranteed in Altamonte Springs, FL

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

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Pricing

Duct Sealing Cost in Altamonte Springs, FL

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

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

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

Call now for same-day scheduling in Altamonte Springs.

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Service Area

Serving Altamonte Springs, FL and Surrounding Areas

Downtown Altamonte Springs

Homes, condos, apartments in Altamonte Springs, FL

North Altamonte Springs

Full north-side coverage in Altamonte Springs, FL

South Altamonte Springs

All south-side communities in Altamonte Springs

East Altamonte Springs

East-end homes and properties in Altamonte Springs, FL

West Altamonte Springs

Full west-side coverage in Altamonte Springs

Surrounding Areas

Call to confirm availability in Altamonte Springs, FL

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FAQ

Duct Sealing FAQs in Altamonte Springs, FL

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

Ducts Losing Conditioned Air? Call MBM Air Duct Cleaning in Altamonte Springs, 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 Altamonte Springs. 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 Altamonte Springs, FL. Call now for same-day scheduling in Altamonte Springs.

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Our HVAC & Air Duct Services in Altamonte Springs, FL

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

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