Air Duct Services · Downey & Greater LA
Your air is only as good as its ducts.
The typical home loses a big share of its conditioned air — ENERGY STAR estimates 20–30% — through leaky, poorly connected ducts. We test, clean, seal, repair, insulate, and redesign ductwork so the comfort you pay for actually reaches the rooms.
Static pressure testing
Negative-pressure cleaning
Mastic sealing
Repair & redesign
Signs your ducts are the problem
When the equipment tests fine but comfort is still wrong, look at the delivery system.
Rooms that never match
Hot back bedrooms and a freezing living room usually mean leaks or bad duct design — not a bad AC.
Dust that comes right back
Leaky return ducts pull attic and crawl-space dust into your air, no matter how often you clean.
Whistles, rattles & flapping
Air forcing through gaps and loose connections is audible. So is a disconnected flex run.
Bills out of proportion
If usage keeps climbing while comfort falls, you may be conditioning your attic instead of your home.
Musty smells on startup
Moisture or biological growth in ductwork announces itself every time the blower kicks on.
Renovation or rodents
Construction debris and critter damage are the two best reasons for a proper negative-pressure cleaning.
What our duct work includes
✓
Inspection & static pressure test — we measure how much air is actually moving, and where it's going.
✓
Negative-pressure cleaning — debris pulled out of the system, not blown around your house.
✓
Mastic sealing at every joint — the durable fix, not a roll of tape that fails in attic heat.
✓
Repair & replacement — crushed, torn, or undersized runs replaced with properly sized duct.
✓
Insulation upgrades — attic runs wrapped so summer heat doesn't cook your cold air in transit.
✓
Register balancing — airflow tuned room by room after the work, verified with measurements.
How duct service works
STEP 1
Test, don't guess
We inspect the full duct system and measure static pressure and airflow at the registers.
STEP 2
Fix what matters
Cleaning, sealing, repair, or redesign — you get written options ranked by impact, not a bundle you don't need.
STEP 3
Verify the difference
We re-measure airflow after the work so you can see the improvement in numbers, not vibes.
RELATED SERVICES
Duct questions, answered
How much conditioned air do leaky ducts actually waste?+
ENERGY STAR estimates the typical home loses about 20–30% of conditioned air through duct leaks and poor connections. Sealing recovers capacity you already paid for.
How do I know if my ducts need attention?+
Uneven rooms, whistling sounds, dust that returns immediately after cleaning, musty smells when the system runs, or visibly damaged flex duct in the attic are the classic signs. A static pressure test settles it definitively.
Is duct cleaning worth it?+
After renovations, rodent activity, or years without service — yes, using negative-pressure equipment. We'll tell you honestly if your ducts don't need it; sealing and repair often matter more than cleaning.
Can you replace ducts without tearing up the house?+
Usually. Most Downey-area ductwork runs through attics and crawl spaces, so full replacement or re-design rarely touches your walls.
Stop paying to cool the attic.
Book a duct inspection and get numbers, not guesses.
Call (562) 729-0706