Alex Air & Heating Services LLC logoAlex Air & HeatingServices LLC
Duct Replacement

Balanced comfort in every room.

Full duct replacement across the Inland Empire & LA County — custom-designed, well-sealed ductwork that restores airflow, efficiency and even comfort throughout your home.

Call 626-777-4822Schedule service

Appointments based on current availability · Open Mon–Sun · 8:00 AM – 6:00 PM.

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

Availability

Service is available across the Inland Empire and East LA County. Call during business hours to confirm the next open appointment.

Quick answer

Duct Replacement from Alex Air & Heating Services LLC: Full duct replacement for maximum efficiency and comfort. We serve Ontario, the Inland Empire & East LA County with appointments based on availability, an EPA 608-certified technician and upfront, written pricing. Call 626-777-4822 during business hours to confirm availability.

Residential & Commercial

When ductwork is old, undersized or beyond repair, replacement restores proper airflow and efficiency throughout your home. We design and install duct systems that deliver balanced comfort to every room.

What's included

  • Custom duct design & sizing
  • Modern, well-sealed materials
  • Balanced airflow to every room
  • Improved efficiency & air quality

Why choose Alex Air & Heating

EPA-Certified
Written Pricing
Availability Confirmed by Phone
Documented Service Scope

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.

Appointments based on availability.

Call during business hours to confirm the next available appointment. Timing depends on the current schedule.

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 EPA-certified technicians evaluate major HVAC system types and explain any parts or follow-up work the documented diagnosis requires.

How it works

Four steps. No surprises.

01

You call

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

02

We diagnose

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

03

You approve

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

04

We complete the approved scope

We perform the work you authorize, test the relevant operation, clean the work area, and explain any documented follow-up.

What it costs

Duct Replacement cost in the Inland Empire

Real 2026 price ranges so you can budget before you call. Every job gets an upfront, written quote — no hidden fees.

ScopeTypical cost (2026)Notes
Seal / repair sections$500–$2,000Fixes leaks, often paired with a tune-up
Partial duct replacement$1,500–$4,000Worst runs replaced
Whole-home duct replacement$3,000–$8,000+New, right-sized, sealed ductwork
2026 duct repair and replacement cost (Southern California). Actual pricing depends on your home, equipment and scope.
Related services

Round out your home comfort.

Popular services and plans homeowners pair with this one.

Duct Repair

Seal leaks and restore airflow with expert duct repair.

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 Replacement FAQs

Most residential duct replacements take one to two days depending on the size and layout of your home.

When ductwork is old, undersized, poorly sealed, or damaged throughout, replacement restores proper airflow better than spot repairs.

Well-designed, sealed ducts reduce wasted air and help your system run more efficiently, which can lower bills.

Yes — we design the new system to deliver balanced airflow to every room, fixing hot and cold spots.

Service information maintained by Yuan Pan, Owner & Lead HVAC Technician. EPA 608 Universal Certification.

Related HVAC guidance

Read before you schedule

Guides

How Long Do Air Ducts Last in Southern California?

Air duct lifespan is not a fixed number. Learn how material, attic heat, installation quality, damage, airflow, and inspection results determine whether Southern California ductwork can stay in service.

Read guide →

Buying Guide

Air Duct Repair vs Replacement: Which Does Your Home Need?

Use measured leakage, physical condition, duct sizing, and access—not age alone—to decide whether Southern California ductwork needs a focused repair or replacement.

Read guide →

Air Quality

Why Is My House So Dusty With the AC Running? 7 Real Causes

House dusty with the AC running? Leaky return ducts, filter bypass and fan settings are usually to blame. Here is how to find the source and fix it for good.

Read guide →
Service area

Serving the Inland Empire & LA County.

Service-area HVAC business serving the Inland Empire, Los Angeles County & surrounding areas

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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.

  • EPA-certified technicians
  • Honest, upfront pricing — no hidden fees
  • Appointment availability confirmed by phone

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.

Clear scheduling

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 replacement?

Written pricing, EPA 608-certified expertise, and appointment timing confirmed before you book.

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