Indoor air quality
Air duct sealing and repair in the Tri-Cities
A-One finds where conditioned air escapes with duct leakage testing, repairs what sealant cannot bridge, and seals the rest from the inside as an Aeroseal certified dealer.
Chapter 01
Conditioned air escapes at the joints nobody sees
Most duct leaks are not holes. They are the places two parts meet: a boot pulled loose from the ceiling, a trunk joint held together with tape that has dried out, the connection at the plenum, the seam on a return. Attic heat in a Tri-Cities summer is hard on old tape, and the adhesive lets go long before the duct does.
A leak on the supply side dumps cooled or heated air into the attic. A leak on the return side does the opposite: it draws attic or crawl space air, with its dust and insulation fibres, into the system and out through the registers. That is why a house can have a fresh filter and still collect dust within days, and why the far rooms never match the thermostat.
A media air filter cabinet feeding an insulated flex duct run between attic trusses in a Tri-Cities home
Aeroseal seals the leaks from the inside and a test checks the result
A-One is an Aeroseal certified dealer. The process begins with duct leakage testing: the registers are covered, a fan pressurises the duct system, and a gauge shows how much air is escaping. That reading is the starting point. Big gaps, disconnected boots and crushed sections get repaired by hand first, because sealant cannot bridge them.
Then the sealing begins. A machine blows a fine aerosol of sealant particles into the pressurised duct. The particles ride along with the air past the smooth duct walls, and where air is leaking out they collect at the edges of the gap and build up until it closes. A final test measures the same duct system the same way, so the two readings can be compared.
Chapter 03
The before and after readings show what the work changed
The two test readings are the useful part of the job. They show how much air the ducts were losing and how much they lose now, measured the same way in your own house. That is a comparison you can look at rather than a promise. Any change on the utility bill depends on the house, the system and the weather, so A-One does not put a figure on it.
Afterwards, watch the rooms that used to lag behind the thermostat through the next hot spell or cold snap. A sealed return draws its air from the house, not the attic, so dust should build up on the vents more slowly. The filter still needs its regular change, because Tri-Cities harvest dust and smoke season will load it fast.
A-One is an Aeroseal certified dealer and tests duct leakage on the job. 2-Year Warranty on all service parts, with an optional 10 Year warranty on parts and labor.
Indoor Air QualitySince 1980
More from the A-One Indoor Air Quality crew
A-One cleans supply and return ducts under negative pressure, so the dust that wind and harvest push into a Tri-Cities house leaves through the vacuum instead of the registers.
When flex duct is crushed, torn or too small for the system, A-One sizes a new supply and return run, hangs it with sealed joints and tests it before the crew leaves.
A yearly AC tune-up from A-One covers the system from the outdoor coil to the condensate drain, before dust and 100 degree afternoons turn a weak part into a breakdown.