Cold air that gives up before it reaches the room
Most duct problems in Tomball attics look like equipment problems from the living room. One bedroom never cools down. The supply vent sweats in August and drips on the ceiling. The system runs all afternoon and the thermostat still reads two degrees high. The air handler is doing its job; the ducts are handing the cooling back to a Texas attic before it arrives.
The usual causes are old flex duct that has collapsed or kinked, joints that were taped instead of sealed, a trunk line too small for the system it feeds, and returns that were never given enough area. Each one changes how much air actually gets to a register, and Gulf humidity punishes every weak point with condensation.
If you have been told you need a bigger air conditioner, get the ducts looked at first. Pushing more tonnage into the same restricted ductwork gets you a louder system, not a cooler house.
Plenums built in our own shop, joints sealed with mastic
Duct planning and design comes before any metal is cut. We look at the room loads, the return path, the attic or crawl space you actually have and the equipment going on the other end. Then the work is measured, not assumed: static pressure across the system tells us how hard the blower is fighting the duct, and a flow hood at the registers tells us what each room really receives.
The sheet metal is fabricated in-house. The photo above is a Crossway technician hammering a plenum into shape on our warehouse floor, with an Aprilaire Model 1510 carton and insulation rolls hand-marked Crossway stacked behind him. Building the plenum to the job, instead of forcing a stock box to fit, is how a ductwork installation or replacement ends up tight at every connection.
Duct sealing is the part customers never see and feel most. Seams and connections get mastic, not just tape, so the air you paid to cool stays in the duct. One long-time customer, Kathy Hofmann, wrote that "Brian's team replaced our furnaces and all of the ductwork which was a huge job and their craftsmanship and teamwork was remarkable." That is the standard we aim for on every full replacement.
Air duct cleaning, and when the ducts are past cleaning
Air duct cleaning makes sense when a system has run with a dirty filter for years, after a renovation that filled the house with drywall dust, or when you are changing out equipment and want the ducts handled at the same time. We will tell you plainly when cleaning is worth doing and when the duct itself is the problem and needs repair or replacement.
A clean, sealed duct system only stays that way with decent filtration at the return. A properly fitted media filter or a high-efficiency air cleaner like the Aprilaire unit in the photo catches more of what would otherwise settle back into the trunk line. Our indoor air quality work picks up where the ductwork leaves off.
Members of the Preferred Service Agreement ($15.00 a month or $180 a year) get automatic inspection reminders, priority service and 15% off all repairs. Call 832-250-6191 to book a duct inspection in Tomball or anywhere in NW Greater Houston. Crossway Mechanical works under Texas license TACLB24665C.
