Where is DC Air and Heating located?

DC Air and Heating LLC is headquartered at 5345 West Avenue M8, Quartz Hill, CA 93536. From this office we dispatch trucks across the entire Antelope Valley — Lancaster, Palmdale, Quartz Hill, Rosamond, Acton, Littlerock, Lake LA, Mojave, Edwards AFB, Tehachapi — plus Bakersfield, Santa Clarita, Valencia, and the northern San Fernando Valley.

What are DC Air and Heating's hours?

We answer phones live 7 AM to 8 PM, seven days a week — including Saturdays, Sundays, and most holidays. True overnight emergencies (8 PM–7 AM) are handled by an on-call line at the same flat rates with no after-hours surcharge.

How do I get a free HVAC quote?

Three ways: (1) call (661) 310-3340 for live dispatch, (2) get an instant online quote at dcairandheating.com/instant-quote, or (3) book a free in-home consultation at dcairandheating.com/book. Replacement quotes are 100% free and held for 30 days.

What HVAC services do you provide?

AC repair, AC installation/replacement, AC maintenance & tune-ups, furnace repair and installation, heat-pump conversions, mini-split installation, ductwork repair and replacement, smart thermostat installation, indoor air quality (UV, media filtration, duct sealing), and emergency same-day dispatch.

What financing do you offer?

Three standard Synchrony plans: Plan 925 — 0% APR for 24 months. Plan 970 — 5.99% APR for 58 months (most popular). Plan 942 — 7.99% APR for 115 months (lowest payment). All approve in 60 seconds with no down payment.

Do you offer same-day service?

Yes. Same-day dispatch is standard for any service call placed by 4 PM, 7 days a week. Most no-cool repairs (capacitor, contactor, fan motor, refrigerant top-off, condensate drain) are completed during the first visit.

How much does AC repair cost?

Common AC repairs run $185–$895: capacitor $189–$289, contactor $235–$345, condenser fan motor $445–$695, refrigerant recharge $295–$695, drain clear $185–$245. Larger jobs (compressor, evaporator coil) run $1,200–$2,950. Diagnostic fee is $89 and is waived if you approve the repair the same day.

Santa Clarita Valley · Los Angeles County

HVAC Duct & Vent Repair in Santa Clarita, CA

Q: Are you licensed and insured?

Yes. DC Air and Heating LLC carries a California State C-20 HVAC contractor's license (CSLB #1158770), $2 million general liability insurance, full workers' compensation, and a $15,000 California contractor's bond. Certificates available on request before any work begins.

Duct and vent repair in Santa Clarita, CA usually pays for itself faster than any equipment upgrade. A disconnected attic run dumps conditioned air into a 140°F attic, and a leaking return pulls that attic air straight back into your house. DC Air and Heating locates, repairs, and seals duct faults across Santa Clarita and the surrounding Santa Clarita Valley, with airflow tested before and after.

Call (661) 310-3340 Book Online Free Instant Quote

40–55 minutes from our Lancaster shop
ZIPs 91350, 91351, 91354, 91355, 91387, 91390
CSLB #1158770

What hvac duct & vent repair includes in Santa Clarita

Repairs begin with a static pressure reading and a visual inspection of every accessible run: disconnections at boots and takeoffs, crushed or kinked flex, torn insulation, failed mastic, rodent damage, undersized returns, and unsealed plenums. We reconnect and strap runs to code, seal joints with mastic and mesh, replace damaged sections with R-8 flex, rebuild boots, and re-test static pressure and register airflow to confirm the repair actually moved the numbers.

Static pressure measured before and after
Disconnected and crushed runs located and repaired
Joints, boots, and plenums sealed with mastic
Damaged sections replaced with R-8 flex
Rodent damage repaired and entry points noted
Register-by-register airflow verification

Santa Clarita conditions that shape hvac duct & vent repair

Santa Clarita duct systems fail in predictable places because of hot inland summers with mild but damp winter mornings. Near Valencia and Saugus, zoning dampers stuck on multi-level homes and duct leakage in two-story chases show up repeatedly, and older attic installs across 91350, 91351, 91354, 91355, 91387, 91390 commonly have flex runs that have pulled loose from takeoffs over twenty years of thermal cycling. Those homes often gain more from duct repair than from a larger condenser.

HVAC Duct & Vent Repair cost in Santa Clarita, CA

Get an instant price See financing options

Permits, utilities and housing stock in Santa Clarita

Santa Clarita is over the pass and about 1,200 feet lower than the Antelope Valley, so the load profile flips: cooling hours dominate, winters are mild, and heat pumps make far more financial sense here than they do in Acton or Tehachapi. The housing is largely 1980s-through-2000s tract construction with attic air handlers and long flex runs to the far bedrooms, which is why room-to-room temperature complaints are the single most common reason we get called out. Permits are issued by the City of Santa Clarita. Travel from Lancaster runs 35–50 minutes depending on the 14 through Soledad Canyon.

Permit authority: City of Santa Clarita Building & Safety
Utilities: Southern California Edison / SoCalGas
Elevation: about 1,200 ft

Why Santa Clarita homeowners call DC Air and Heating

We are a locally owned Los Angeles County HVAC contractor headquartered at 5345 West Avenue M8 in Lancaster — about 32–42 miles from Santa Clarita, CA, or 40–55 minutes in normal traffic. That proximity is why same-day service is realistic here rather than aspirational. Every technician lives in the Santa Clarita Valley, every price is flat-rate and shown in writing before work starts, and every repair carries a one-year labor warranty. We hold California C-20 license CSLB #1158770, carry $2M liability coverage, and maintain a 5.0-star Google rating across 135+ verified reviews. Whatever it takes.

HVAC Duct & Vent Repair FAQs — Santa Clarita, CA

How do I know if my ducts are leaking?

Common signs in Santa Clarita are rooms that never reach setpoint, dust that returns within days of cleaning, high summer bills, and a system that runs continuously. A static pressure test plus a visual attic inspection confirms it in under an hour. See HVAC Duct & Vent Cleaning in Santa Clarita, CA.

Is duct sealing better than replacement?

If the runs are intact and correctly sized, sealing is the cheaper and equally effective fix. If the ducts are undersized, brittle, or repeatedly disconnecting, sealing buys a season and replacement solves it. We measure and tell you which situation your Santa Clarita home is in. See HVAC Duct & Vent Installation in Santa Clarita, CA.

How fast can you get to Santa Clarita for hvac duct and vent repair?

Our trucks dispatch from 5345 West Avenue M8, Lancaster, CA 93536, roughly 32–42 miles from Santa Clarita, CA — typically 40–55 minutes door to door. Calls placed before 4 PM are normally handled the same day, seven days a week, and dispatch texts you a live tracking link with your technician's name and ETA. See HVAC Duct & Vent Cleaning in Santa Clarita, CA.

Are you licensed and insured for hvac duct and vent repair in Los Angeles County?

Yes. DC Air and Heating LLC holds California C-20 HVAC contractor license CSLB #1158770, carries $2M general liability, full workers' compensation, and a $15,000 contractor's bond. We pull permits with the Los Angeles County building department and complete Title 24 / HERS verification where the work requires it. See HVAC Duct & Vent Cleaning in Santa Clarita, CA.

What does hvac duct & vent repair cost in Santa Clarita, CA?

Duct and vent repair in Santa Clarita, CA generally runs $385–$2,400: reconnecting and sealing a run $385–$650, replacing a damaged section $450–$950, rebuilding a supply or return plenum $650–$1,400, and whole-system mastic sealing $1,200–$2,400. We quote the repair against full duct replacement whenever the system is close to the tipping point, so you can spend once instead of twice.. Pricing is flat-rate and identical for every Santa Clarita address — Duct repairs and sealing typically $385–$2,400. You see the number in writing before any work begins, and there is no trip charge inside 91350, 91351, 91354, 91355, 91387, 91390. See HVAC Duct & Vent Installation in Santa Clarita, CA.

Do you offer financing for hvac duct & vent repair in Santa Clarita?

Yes. Approved Santa Clarita homeowners can use Synchrony plans through DC Air and Heating: 0% for 24 months, 5.99% for 58 months, or 7.99% for 115 months. Applications run soft-pull first, take about two minutes, and can be completed at your kitchen table before the technician leaves. See HVAC Duct & Vent Installation in Santa Clarita, CA.

Which Santa Clarita neighborhoods and ZIP codes do you cover?

We cover all of Santa Clarita, CA including Valencia, Saugus, Newhall, Stevenson Ranch, Castaic, serving ZIP codes 91350, 91351, 91354, 91355, 91387, 91390 plus the surrounding Santa Clarita Valley. Our shop at 5345 West Avenue M8, Lancaster, CA 93536 is roughly 32–42 miles away, about 40–55 minutes in normal traffic, so Santa Clarita is a daily route for our trucks rather than an occasional trip.

What warranty comes with hvac duct & vent repair?

Every repair carries a one-year labor warranty, and installed equipment carries the manufacturer's parts coverage — typically ten years when we register it for you, which we always do. Extended labor coverage is available on installations. Warranty work in Santa Clarita is scheduled at the same priority as paid service calls. See HVAC Duct & Vent Cleaning in Santa Clarita, CA.

HVAC Duct & Vent Repair in nearby areas

Other HVAC services in Santa Clarita

The work Santa Clarita homeowners most often book alongside this service — matched to local conditions (hot inland summers with mild but damp winter mornings) and ZIPs 91350, 91351, 91354, 91355, 91387, 91390.