Call Now — (888) 216-9551 — Same-Day Scheduling
Pressure Tested Before & After  ·  Mastic Sealant  ·  Every Leak Point Found  ·  Guaranteed
Duct Sealing · New Canaan, CT

Duct Sealing in New Canaan, CT —
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 New Canaan, CT

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

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

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

Why Correct Sealant Materials Last While Duct Tape Fails in New Canaan, CT

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

Call Now — (888) 216-9551
Where Leaks Occur

Where Duct Leaks Occur and Why They Develop in New Canaan, CT

At Every Unsealed Duct Joint Throughout the System in New Canaan

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

At Branch Takeoffs From the Main Trunk Line in New Canaan, CT

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

At Register Boot Connections in Walls and Ceilings in New Canaan

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

Why Original Installation Sealant Fails Over Time in New Canaan, CT

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

What Leakage Costs You

What Duct Leakage Costs You in New Canaan, CT

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 New Canaan, CT

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

What Return Duct Leaks Do to Your Indoor Air Quality in New Canaan, CT

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

Call Now — (888) 216-9551
Our Sealing Process

MBM's Duct Sealing Process in New Canaan, CT

1

Pressure Testing to Establish Total Leakage in New Canaan

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

2

Systematic Leak Location Through the Accessible System in New Canaan, CT

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

3

Correct Sealant Selected for Each Leak Point in New Canaan

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

4

Every Leak Point Sealed Completely in New Canaan, CT

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

5

Post-Sealing Pressure Test to Confirm the Result in New Canaan

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

Sealant Materials

What MBM Uses to Seal Duct Leaks in New Canaan, CT

Mastic Sealant — The Professional Standard in New Canaan

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

UL 181-Rated Foil Tape for Specific Applications in New Canaan, CT

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

Standard Duct Tape Is Never Used in New Canaan

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

Why MBM

Why Choose MBM Air Duct Cleaning for Duct Sealing in New Canaan, CT

Pressure Tested Before and After — Documented Improvement in New Canaan

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

Every Accessible Leak Point Sealed in New Canaan, CT

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

Correct Materials That Maintain Effectiveness Long Term in New Canaan

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

Every Sealing Service Guaranteed in New Canaan, CT

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

Call Now — (888) 216-9551
Pricing

Duct Sealing Cost in New Canaan, CT

All pricing confirmed upfront before work begins in New Canaan. No surprises in New Canaan, CT.

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

Pressure tested before and after. Every leak found. Correct materials. Guaranteed. MBM Air Duct Cleaning in New Canaan, CT.

Call now for same-day scheduling in New Canaan.

Call Now — (888) 216-9551
Service Area

Serving New Canaan, CT and Surrounding Areas

Downtown New Canaan

Homes, condos, apartments in New Canaan, CT

North New Canaan

Full north-side coverage in New Canaan, CT

South New Canaan

All south-side communities in New Canaan

East New Canaan

East-end homes and properties in New Canaan, CT

West New Canaan

Full west-side coverage in New Canaan

Surrounding Areas

Call to confirm availability in New Canaan, CT

Call Now — (888) 216-9551
FAQ

Duct Sealing FAQs in New Canaan, CT

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

Ducts Losing Conditioned Air? Call MBM Air Duct Cleaning in New Canaan, CT Today.

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

Call Now — (888) 216-9551

Our HVAC & Air Duct Services in New Canaan, CT

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

Serving These Locations

Air Duct Cleaning Monte Sereno, CAAir Duct Cleaning Parkers Prairie, MNAir Duct Cleaning Lakeview Estates, GAAir Duct Cleaning Downingtown, PAAir Duct Cleaning Wildwood Crest, NJAir Duct Cleaning Cottage Grove, ORAir Duct Cleaning Beverly Hills, MIAir Duct Cleaning West Brownsville, PAAir Duct Cleaning Pleasureville, KYAir Duct Cleaning Saucier, MSAir Duct Cleaning Willowick, OHAir Duct Cleaning Machias, WAAir Duct Cleaning Mount Cobb, PAAir Duct Cleaning Mason, TXAir Duct Cleaning Gilcrest, COAir Duct Cleaning Maitland, FLAir Duct Cleaning Berrien Springs, MIAir Duct Cleaning Rangely, COAir Duct Cleaning New Franklin, OHAir Duct Cleaning California Polytechnic State University, CAAir Duct Cleaning First Mesa, AZAir Duct Cleaning Pendleton, INAir Duct Cleaning Cedarville, ARAir Duct Cleaning Gettysburg, SDAir Duct Cleaning New York Mills, NYAir Duct Cleaning New Castle Northwest, PAAir Duct Cleaning Kimberly, WIAir Duct Cleaning Lake Grove, NYAir Duct Cleaning Palmdale, PAAir Duct Cleaning Chesterbrook, PAAir Duct Cleaning Kerman, CAAir Duct Cleaning Seaside Park, NJAir Duct Cleaning Richwood, WVAir Duct Cleaning Rutherford, PAAir Duct Cleaning Soledad, CAAir Duct Cleaning Lasalle, ILAir Duct Cleaning Crosby, MNAir Duct Cleaning Lyndon, KSAir Duct Cleaning Battle Ground, WAAir Duct Cleaning Brackettville, TXAir Duct Cleaning Tappan, NYAir Duct Cleaning Lofall, WAAir Duct Cleaning Parkesburg, PAAir Duct Cleaning Lakeland Highlands, FLAir Duct Cleaning Veedersburg, INAir Duct Cleaning Kenmore, WAAir Duct Cleaning Brookdale, CAAir Duct Cleaning Johnson City, TXAir Duct Cleaning Fairland, OKAir Duct Cleaning Mccleary, WA