HVAC Problems Cost More Than Comfort

Don’t let a failing system disrupt your business. Reliable keeps your office, retail space, or multi-unit property running smoothly with expert commercial HVAC repair, installation, and maintenance across Los Angeles and Ventura County. No downtime surprises. No inflated commercial rates.

“Great experience! The team was knowledgeable, efficient, and respectful of my home. They even followed up after the installation to make sure everything was working properly. Truly reliable, just like their name.”

High-efficiency central air conditioning unit for home cooling in Los Angeles and Ventura County.

David Dorfman, ⭐⭐⭐⭐⭐ Google Review

A large commercial HVAC unit being lifted by a crane onto a rooftop under a cloudy sky.
Outdoor HVAC unit installed on a rooftop in Los Angeles with a white, textured parapet wall.

Comfort That Keeps Your Business Running Smoothly

When your HVAC system fails, so does everything around it. Productivity drops, tenants complain, and customers walk out. Poor indoor comfort is more than an inconvenience. It affects your bottom line.
  • AC or heat not working during business hours
  • Inconsistent temperatures across offices, suites, or retail areas
  • Repeat visits from unreliable contractors
  • Rising energy bills from outdated or oversized systems
Whether you manage an office, commercial property, retail location, or multi-unit building, we listen to your needs and deliver professional service that fits your space. Our HVAC technicians provide fast repairs, energy-efficient upgrades, and long-term maintenance to keep your building comfortable and running without interruptions.
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Comprehensive HVAC Solutions for Every Business Need

System Installation & Upgrades

We install commercial HVAC systems designed to perform, last, and reduce overhead.
Whether you’re outfitting an office, upgrading a retail space, or managing a multi-unit building, we specialize in:
  • Commercial air conditioners, heat pumps, furnaces, and ductless mini-splits
  • Proper system sizing for consistent comfort and energy efficiency
  • Fast turnaround with minimal business disruption
Our team works with top brands and proven equipment so you get the right solution the first time. We prioritize low operating costs, smart controls, and systems that match the unique needs of your business.
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HVAC rooftop heating and cooling system on a building in Los Angeles.

HVAC Repair & Emergency Response

When your heating or cooling system fails, we respond quickly to keep your business running.
  • Fast repair for all major HVAC brands, such as Carrier, Lennox, Trane, Goodman, and Rheem
  • Priority service within 24 to 48 hours to minimize downtime
  • Upfront quotes with no surprise charges
From urgent AC repairs in Los Angeles to heating issues in Ventura County, our technicians bring the tools, training, and professionalism your property deserves.
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High-efficiency Goodman air conditioning unit installed on a Los Angeles rooftop.

Scheduled Maintenance & Reliability Plans

Keep your HVAC system running smoothly with routine service that prevents costly breakdowns and helps control energy costs.
  • Custom maintenance plans tailored for single and multi-location properties
  • Seasonal tune-ups, filter changes, and full system checkups included
  • Enjoy extended labor warranty when enrolled in a maintenance plan
We help Los Angeles and Ventura County businesses reduce downtime, extend equipment life, and avoid surprise repair costs.
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Thermostat controlling home cooling system in Los Angeles.

Indoor Air Quality & Comfort Optimization

Keep your HVAC system running smoothly with routine service that prevents costly breakdowns and helps control energy costs.
  • Advanced air purification, UV lights, and filtration systems for cleaner indoor air
  • Smart thermostats and zone controls from trusted brands like Nest, Ecobee, and Honeywell
  • Improved airflow to eliminate hot and cold spots throughout your office or building
We help businesses across Los Angeles and Ventura County create cleaner, more comfortable indoor environments.
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HVAC Solutions for Every Type of Property

From single offices to entire commercial campuses, Reliable Heating and Air delivers professional HVAC services tailored to your needs across Los Angeles and Ventura County.
Business Owners & Offices
Create a comfortable space for employees and customers with energy-efficient heating and cooling that keeps your business running smoothly.
Property Managers & Landlords
We simplify your job by becoming your single source for fast repairs, seasonal maintenance, and tenant satisfaction. One call handles it all across multiple units or locations.
Developers & Builders
Whether it’s new construction or a retrofit, we handle system design, professional installation, and full compliance with local codes for lasting performance and fewer delays.
No matter how many properties you manage, Reliable Heating and Air helps keep them efficient, compliant, and comfortable.
Let’s build a long-term HVAC solution that works for your business. Contact us today.
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HVAC rooftop units on a commercial building in Los Angeles, ready for installation.

Why Our Commercial Clients Choose Reliable Heating and Air

Crane lifting HVAC equipment on an apartment building in Los Angeles.
Our Promise:
  • Experienced local pros who understand commercial HVAC codes and compliance
  • Fair, transparent pricing without inflated commercial markups
  • Flexible scheduling to reduce downtime and avoid business disruptions
  • Access to financing, rebates, and tax credit programs to offset large project costs
We focus on long-term comfort, performance, and partnerships. So your buildings run smoother and your tenants stay satisfied.

Trusted by Homeowners and Businesses Across LA & Ventura

Crane lifting a rooftop AC unit onto a multi-story apartment building in Los Angeles

Keep Your Business Comfortable Without Breaking the Budget

Affordable HVAC shouldn’t mean cutting corners. We make it easy for businesses across Los Angeles and Ventura County to get the systems they need, with flexible options that work for your bottom line.

  • Monthly payment plans for new installs or repairs
  • Rebates available on energy-efficient systems
  • Quick approval process with minimal paperwork
Ask your technician during your visit or click below to explore your financing options
Explore COMMERCIAL Financing Options

Our Process: Simple, Professional, Reliable

We make HVAC service easy for busy business owners and property managers across Los Angeles and Ventura County.

Schedule Your Visit

Give us a call, send an email or fill out our online form to book an on-site consultation that fits your schedule

We Get It Done Right

From full system installs to emergency repairs, our technicians use quality parts and proven methods to get your system running right

Ongoing Support

Get ongoing service, energy-saving advice, and priority care through our commercial maintenance plans

Our Promise to You

Every job we take on, whether it is a rooftop install or a quick repair, comes with full transparency, dependable quality, and real accountability.
  • No Hidden Costs: Clear, upfront pricing with no surprise fees and no pushy upselling
  • Professional from Start to Finish: Our technicians arrive on time, respect your property, and complete the job right the first time
  • Work You Can Rely On: Every repair and installation is completed with care, precision, and the highest standards in the industry

Ready to get started? Contact us today for expert HVAC service you can count on.

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Our promise is simple: your comfort, your trust, and your satisfaction come first; every time.”

Russ T., Managing Director

Frequently Asked Questions

Do you service multi-unit properties?

Yes. We work directly with landlords and property managers to streamline HVAC services across multiple units. Whether it’s scheduled maintenance or emergency repair, we keep every unit running efficiently and your tenants comfortable.

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Do you handle rooftop and large commercial systems?

We do. Our technicians can handle rooftop package units, split systems, and high-capacity commercial HVAC systems. We follow strict safety protocols and manufacturer specs to keep your building’s systems running at full performance.

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Do you provide maintenance contracts?

Yes. Our custom maintenance plans are available for single buildings or multi-location portfolios. Plans include seasonal system checks, filter changes, coil cleaning, and priority repair scheduling. Routine service reduces downtime and saves you money long-term.

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Can you work outside normal business hours?

Absolutely. We know downtime hurts your business. That’s why we offer flexible scheduling, including after-hours and weekend availability, so we can complete repairs or installs without disrupting your operations.

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What brands do you service?

We repair and maintain most major commercial HVAC brands, including Carrier, Lennox, Trane, Goodman, Bryant, Daikin, and Rheem.

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What if other HVAC companies couldn’t fix my issue?

Many of our clients turn to us after repeat failures from other contractors. We go beyond basic service calls with full diagnostic testing of rooftop units, zoning, airflow, and controls to identify and fix the root cause of the problem, not just the symptoms.

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Can you help with code compliance for LA and Ventura County?

Yes. We stay current with California HVAC codes, including Title 24, ventilation standards, and efficiency requirements. Every job is done to code, with permits and inspections handled for you, so you avoid delays, fines, or future issues.

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Keep Your Business Comfortable Year-Round

From retail spaces and offices to multi-unit properties, Reliable Heating and Air delivers dependable commercial heating and cooling with minimal disruption. Our team keeps your systems efficient, your tenants happy, and your business running smoothly season after season.