Duct Repair

Stop wasting air — seal it up.

Expert duct repair across the Inland Empire & LA County — we find and seal leaks and disconnects so you stop losing conditioned air and uneven comfort.

Call 626-777-4822 Schedule service

Same-day appointments most days · Open Mon–Sun · 8:00 AM – 6:00 PM.

Alex Air & Heating technician performing duct repair in the Inland Empire & LA County

Same-day

Service available across the Inland Empire & LA County — call early and we'll do everything we can to get a tech out today.

Residential & Commercial

Leaky, damaged ducts can waste up to 30% of your conditioned air — driving up bills and leaving rooms uncomfortable. We locate leaks, disconnects and damage, then seal and repair your ductwork to restore balanced, efficient airflow.

What's included

Leak detection & sealing
Reconnection of detached ducts
Insulation repair & replacement
Improved comfort & lower bills

Why choose Alex Air & Heating

Licensed & Insured

Honest, Upfront Pricing

Same-Day Service

Satisfaction Guaranteed

Backed by our warranty

Labor warranty 3 Years · Parts warranty 5 Years · Compressor warranty 7 Years. No hidden fees — you approve the price before we begin.

Why choose Alex Air & Heating

What you actually get when you call us.

Same-day appointments.

Call during business hours and we'll do everything we can to get a technician out the same day — with a real arrival window, not an all-day wait.

Upfront pricing, no surprises.

We diagnose, quote, and explain — then you decide. You approve the price before any work begins, with no hidden fees at the end.

Every make & model.

Our licensed technicians service all major HVAC brands, and our trucks are stocked to finish most repairs in a single visit.

How it works

Four steps. No surprises.

You call

Reach us at 626-777-4822. We'll book your appointment and share a real arrival window — not an all-day block.

We diagnose

A full system inspection — refrigerant, electrical, airflow and controls — to find the real root cause, not just the symptom.

You approve

You get an upfront, flat price before any work starts. Repair or replace? We give you the honest numbers.

We fix it

Most repairs are completed on-site the same visit. We test everything, clean up, and confirm your system is running right before we leave.

Related services

Round out your home comfort.

Popular services and plans homeowners pair with this one.

Duct Replacement

Full duct replacement for maximum efficiency and comfort.

Learn more

Maintenance Membership

Just $199 per system per year — an annual tune-up, 10% off all repairs, no overtime fees and free filters.

See membership perks

Good to know

Duct Repair FAQs

Uneven room temperatures, high energy bills and excessive dust are common signs. We can inspect and test your ductwork to confirm.

Leaky ducts can waste up to about 30% of your conditioned air, driving up bills and leaving some rooms uncomfortable.

Often, yes — duct leaks and imbalances are a common cause of hot and cold spots, and we can correct them.

If the damage is localized, repair is usually best. If ducts are old or undersized throughout, replacement may be the smarter long-term fix — we'll advise honestly.

Service area

Serving the Inland Empire & LA County.

Serving the Inland Empire, Los Angeles County & Surrounding Areas

Check your address

Do we cover your ZIP?

Not sure if you're in our area? Enter your ZIP above — we cover most of the Inland Empire & LA County.

Licensed & insured technicians
Honest, upfront pricing — no hidden fees
Same-day appointments often available

Prefer to talk? Call 626-777-4822

Where we workDon't see your city? Just ask.

19 cities across 4 regions

OntarioRancho CucamongaFontanaUplandMontclairRialtoRedlandsSan BernardinoRiversideCoronaEastvaleJurupa ValleyPomonaClaremontWalnutDiamond BarRowland HeightsChinoChino Hills

Locally owned & operated

An independent local team serving the Inland Empire & LA County.

Same-day appointments

Call during business hours and we'll do everything we can to dispatch a tech the same day.

Fast response times

We answer fast and show up when we say we will.

Need duct repair?

Same-day service, honest pricing, and licensed technicians who get it right the first time.

Request Service Call 626-777-4822