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.
Your energy bills are higher than they should be for the amount of heating and cooling your home requires in Novato. Certain rooms will not reach the right temperature regardless of how long the HVAC runs in Novato, CA. You have had the equipment checked and it is working correctly in Novato. 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 Novato, CA. 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 Novato.
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 Novato, CA. The Department of Energy estimates that typical residential duct systems lose 20 to 30 percent of conditioned air through leakage in Novato. 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 Novato, CA.
MBM Air Duct Cleaning finds and seals duct leaks throughout Novato, CA in Novato. Pressure testing before sealing to quantify the total leakage in Novato, CA. Systematic identification of every specific leak point through the accessible system in Novato. Correct sealant materials applied to every leak point in Novato, CA. Post-sealing pressure testing to document the improvement with measured numbers in Novato. And a guarantee on every sealing service in Novato, CA. Call now for same-day scheduling in Novato.
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 Novato. A supply duct carrying cold conditioned air through a 130-degree summer attic cycles through extreme temperatures with every cooling cycle in Novato, CA. Standard duct tape adhesive is not formulated for this cycling and fails within a few seasons in Novato. Mastic sealant remains flexible after curing and maintains its seal through years of thermal cycling in Novato, CA. UL 181-rated foil tape maintains adhesion for 20 years or more in normal duct system conditions in Novato.
Every connection between duct sections is a potential leak point in Novato, CA. In most residential installations, these joints were mechanically fastened without sealant during installation in Novato. 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 Novato, CA.
Branch takeoffs split conditioned air from the main trunk line into the individual branch runs serving each room in Novato. They have multiple edges and angles that create significant potential leak area if not correctly sealed in Novato, CA. Branch takeoff leaks are among the largest individual leak points in typical residential duct systems in Novato.
The register boot connects the branch duct run to the wall, ceiling, or floor opening where the supply register mounts in Novato, CA. 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 Novato. Conditioned air escaping at the boot level leaks into the wall or ceiling cavity rather than through the register into the room in Novato, CA.
Systems sealed with standard duct tape develop leakage as the tape dries, cracks, and loses adhesion from temperature cycling in Novato. Standard duct tape on duct joints typically fails within three to five seasons of thermal cycling in Novato, CA. Joints that were sealed with standard tape appear sealed when first applied and are open to leakage again within a few years in Novato.
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 Novato. The conditioned air that leaks out before reaching the register does not reach the room in Novato, CA. Rooms at the end of long duct runs with multiple leak points along the way receive the cumulative effect of all those leaks in Novato. 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 Novato, CA.
Return duct leaks draw air from the surrounding unconditioned space into the return airstream in Novato. A return duct leak in an attic draws hot, dusty attic air into the air handler in summer in Novato, CA. A return duct leak in a crawl space draws crawl space air including moisture, mold spores, and soil particulate into the system in Novato. This unconditioned air bypasses the filter and is distributed throughout the home in Novato, CA.
MBM Air Duct Cleaning performs a duct pressure test before any sealing begins in Novato, CA. A calibrated fan is connected to the duct system and pressurized to a standard test pressure in Novato. The measured airflow represents the total leakage rate and provides the baseline for comparing with the post-sealing result in Novato, CA.
With the system pressurized, MBM technicians work through the accessible duct system to locate every specific leak point in Novato. Every branch takeoff. Every duct joint. Every register boot connection. Every plenum seam and air handler connection in Novato, CA. Every identified leak point is marked for sealing in Novato.
Mastic sealant for most duct joint and connection applications in Novato, CA. UL 181-rated foil tape for specific sheet metal seam applications in Novato. The correct material for the specific application in Novato, CA.
MBM systematically seals every identified leak point in the accessible duct system in Novato. Mastic applied at the correct thickness to cover the full joint gap and bond to the duct surfaces on both sides in Novato, CA. Every identified leak point addressed before the post-sealing pressure test in Novato.
After all identified leak points are sealed, MBM repeats the pressure test to measure the post-sealing leakage rate in Novato, CA. The before and after measurements quantify the leakage reduction achieved by the sealing in Novato. Documented evidence of the result provided to the homeowner in Novato, CA.
Mastic is a water-based sealant specifically formulated for duct system applications in Novato, CA. It remains flexible after curing, maintaining its seal through the thermal cycling that duct systems experience in Novato. It does not dry out, crack, or lose adhesion from temperature cycling the way standard duct tape does in Novato, CA.
UL 181-rated foil tape is tested and rated specifically for HVAC duct applications in Novato. Unlike standard duct tape, it maintains its adhesion through the temperature cycling of duct system operation in Novato, CA. Appropriate for specific sheet metal seam applications in Novato.
Standard silver duct tape is not rated for duct system applications in Novato, CA. Its rubber-based adhesive dries and loses adhesion from temperature cycling in Novato. MBM Air Duct Cleaning never uses standard duct tape for duct sealing work in Novato, CA.
MBM performs pressure testing before and after every duct sealing service in Novato, CA. The before and after measurements document the leakage reduction achieved in Novato. Documented improvement, not assumed improvement in Novato, CA.
MBM seals every identified leak point in the accessible duct system in Novato. Not a representative sample. Not the most obvious points only in Novato, CA. Every identified leak point in Novato.
Mastic sealant and UL 181-rated foil tape that maintain their effectiveness through the thermal cycling of long-term HVAC operation in Novato, CA. Never standard duct tape in Novato.
Every MBM Air Duct Cleaning duct sealing service is guaranteed in Novato. If the sealing does not produce the expected improvement within the guarantee period, we return and address it at no additional charge in Novato, CA.
All pricing confirmed upfront before work begins in Novato. No surprises in Novato, CA.
A sealing service that reduces leakage by 15 to 20 percentage points returns that proportional energy cost reduction on every subsequent energy bill in Novato, CA. For a home spending $200 per month on heating and cooling, a 15 percent leakage reduction saves approximately $30 per month in Novato. A sealing service costing $500 to $1,000 pays for itself in energy savings within 18 to 36 months in most cases in Novato, CA. Every month after payback is net return on the investment in Novato.
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Duct leakage pays for conditioned air that heats and cools your attic and crawl space instead of your living spaces every month in Novato. 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 Novato, CA. Call now for same-day scheduling in Novato.
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