Air Duct Sealing Near Brea, California
Air Duct Sealing Near Brea, California
Stop heating and cooling the attic.
Leaky ducts pull dusty, hot/cold attic or crawlspace air into your system and push your conditioned air out through gaps. Sealing boots, wyes, take-offs, plenums, splices, and return chases restores airflow, evens out room temps, lowers bills, and keeps the system quieter.
What Problems Duct Sealing Solves
- Hot/cold rooms and weak airflow at certain registers
- Dust streaks around vents/boots (classic leak sign)
- High energy bills and long run times
- Whistling/vibration noises from leaky seams
- Musty odors from attic/crawlspace air getting pulled in
If we find crushed or undersized runs, we’ll recommend repair/reroute along with sealing.
Our Duct Sealing Process
- Measure & Inspect – quick static pressure and airflow checks; locate leaks at seams, boots, and returns
- Prep – clean/dry surfaces, correct sagging supports and tight bends
- Seal – apply UL-181 mastic/foil tape at all accessible seams & connections, plus boot-to-drywall sealing
- Insulate/Protect – patch damaged insulation and vapor barrier as needed
- Verify – recheck airflow/pressure; confirm comfort at registers
- Report – photos, findings, and any next-step options (added returns, balancing, or repairs)
Need whole-home coverage where access is limited? Ask about aerosolized duct sealing options; we’ll tell you if your system is a good candidate.
Benefits of Professional Duct Sealing
- More even temperatures room to room
- Lower energy costs from reduced leakage
- Cleaner indoor air (less attic/crawlspace dust)
- Quieter operation with reduced whistling and turbulence
- Longer equipment life thanks to healthier airflow/static pressure
Why Homeowners Choose Service Lion
- Local Brea / North OC HVAC pros
- Repairs done to manufacturer specs & code
- Floor protection and tidy work areas
- Clear communication and no surprise add-ons
- We service what we install and stand behind our work
Repair vs. Sealing vs. Replacement — What’s Smarter?
- Seal when ducts are basically sound but leaky.
- Repair/reroute when runs are kinked, crushed, or poorly supported.
- Replace when ducts are undersized, contaminated, or extensively damaged — especially if you’re installing new HVAC.
We’ll price options side-by-side so you can choose based on comfort and budget.
Add-Ons That Pair Well
- Additional/upsized return air for quieter operation & better airflow
- High-MERV media filter cabinet (we’ll confirm your system can handle it)
- Balancing dampers for hard-to-condition rooms
- Duct cleaning if heavy debris is present after sealing
- Smart thermostat “circulate” settings to improve mixing/filtration
Keep Ducts Tight & Clean
- Change filters on schedule to keep static pressure in check
- Keep supply/return grilles unblocked
- Avoid storing items on flex ducts or flattening runs
- Schedule annual HVAC maintenance to catch airflow/drain issues early
Ready to Schedule Air Duct Sealing?
Call (657) 669-0259 or request service online. We’ll confirm you’re in the Brea / Orange County service area and send a Service Lion duct specialist.
Air Duct Sealing Offers & Services
Related HVAC Services
Service Lion CA is Proud to Offer Affordable Financing Options.
Contact Us Today to Start Saving!
Upgrade your home hassle-free with our flexible financing options. From repairs to installations, we’ve got you covered. Contact Service Lion CA today to discover the perfect plan for your dream Brea, California home!
Air Duct Sealing FAQs
Will sealing really make a difference?
Yes — sealing cuts leakage, which improves airflow, comfort, and energy efficiency. Many homes see immediate room-to-room improvements.
Is “duct tape” okay to use?
No. Only UL-181 mastic/foil tape is code-approved for long-term sealing.
How long does duct sealing take?
Most homes are same-day, depending on access and system size. We’ll outline the scope up front.
Can you seal ducts inside walls?
We seal accessible ductwork (attic, crawl, mechanical spaces). For hidden leaks, we can discuss aerosolized sealing or strategic repairs.
Will sealing reduce dust?
Often, yes. By stopping return leaks that pull attic/crawlspace air, you reduce dust and odors entering the system.
Do you test leakage?
Where required, we perform Title 24 duct-leakage tests. Otherwise, we document pressure/airflow improvements and provide photos of sealed points.
