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Reliant HVAC Service LLC

Rancho Cucamonga HVAC Companies
Ranked #4 in Rancho Cucamonga | Grade B+
5.00 (16 reviews)

Reliant HVAC Service LLC

Local HVAC contractor providing diagnostics, repairs, maintenance, and system consultations with emphasis on clear communication and tidy workmanship.

Why Homeowners Choose This Business

Customers highlight punctual arrivals, clear communication about findings and options, and no-pressure recommendations. Work areas are left clean, and repairs focus on solving the issue without unnecessary upsells.

Service Area

Rancho Cucamonga and nearby Inland Empire neighborhoods, subject to scheduling.


How This Business Compares

A quick local comparison based on ranking, review strength, and market visibility.
  • Maintains a competitive standing in this market.
  • Performs at or above the local average for Google rating.
  • Shows strong customer satisfaction signals based on review quality and volume.

Trust Signals

Licensing - CA C-20 (per CSLB listing; verify current status with the contractor).

Services Covered

  Renovation Services
  HVAC repair
  Air Conditioning Repair
  Furnace Repair
  HVAC Maintenance
  Airflow Balancing
  Thermostat Replacement
  AC tune-up
  Heating Service
  Starter replacement
  System diagnostics
  Ductwork Troubleshooting
  HVAC consultation

Heating and cooling diagnostics, AC and furnace repair, seasonal tune-ups, airflow troubleshooting, starter and component replacement, and system replacement consultations.


Reviews

Recent Reviews

5.00

(Based on 16 reviews)

Recent reviews consistently mention punctuality, clear explanations, and respectful service. Many note that options are presented without pressure and that pricing and repair scope are explained up front. Cleanliness during and after the visit is a recurring positive theme. Several reviewers also mention successful airflow fixes and routine maintenance running smoothly after service.

Google Review
Alex Castillo on Reliant HVAC Service LLC

From the get go Mark was punctual attentive and courteous. He really made me feel like he was taking care of me. I’ve had horrible experiences with other hvac companies but Reliant HVAC is really top notch. Mark was very honest with me and let me know the condition of my system and what it would take to repair and the expectations for the repair and he WAS VERY CLEAN. He never made me feel pressured. I am definitely recommending Reliant HVAC to friends and family.

Google Review
Alberto Sandoval on Reliant HVAC Service LLC

I recently had A/C maintenance done, including a starter replacement, and I’m very happy with the service. He was professional, knowledgeable, and took the time to explain what needed to be done. The work was completed efficiently, and everything has been running smoothly since.

He was punctual, respectful of the space, and made sure everything was cleaned up before leaving. It’s clear he takes pride in his work and cares about doing the job right. I would definitely recommend him to anyone needing reliable and honest HVAC service.

Mark came out and helped get our system up and running.He was very Honest and Straightforward by informing us that the furnace door was loose and that causes the system to shut off. We will definitely be calling RELIANT HVAC Service again when needed in the future ! Their efficiency and GREAT SERVICE it’s OUTSTANDING !!????

Google Review
Manuel Garcia on Reliant HVAC Service LLC

I recently had Reliant HVAC Service Company come out to my home to improve the airflow, and I couldn’t be happier with the results. From start to finish, the experience was excellent.

Mark, the technician, was outstanding. He was very knowledgeable and took the time to clearly explain what was causing the airflow issues and what options were available. What I appreciated most was his honesty. He didn’t try to upsell anything unnecessary and focused on what would actually make a difference for my home.
He arrived right on time, was professional throughout the visit, and completed the work efficiently. The pricing was also very fair, especially considering the quality of the work and the improvement I’ve already noticed.

Overall, I highly recommend Reliant HVAC Service Company. If you get the chance to work with Mark, you’ll be in great hands.

Mark came for a system replacement consultation and I was amazed by how knowledgeable he is at such a young age. He told me everything from why my system had so much issues to how I can remedy it. He didn’t push for a new unit from the get go and explained how my existing unit can be restored to 100 percent efficiency. He compared the cost to restore vs replace and I was very impressed with the integrity this company stands for and I will definitely be choosing Mark from Reliant HVAC Service!

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Frequently Asked Questions

The team focuses on diagnostics, repairs, and maintenance for residential and light commercial heating and cooling systems. They also provide airflow troubleshooting, component replacement, and system replacement consultations when appropriate.

Posted hours are Monday through Saturday, 7:00 AM to 6:00 PM. Availability outside these times may be limited, so calling ahead is recommended to discuss scheduling needs.

Technicians explain what’s causing the issue, outline viable repair paths, and compare them to replacement when relevant. The goal is to provide clear options without pressure so you can choose what fits your budget and timeline.

A typical visit includes inspection, testing key components, and noting any wear or safety concerns. Technicians explain findings on site and recommend any parts or follow-up steps before proceeding.

Reliant HVAC Service LLC is based in Rancho Cucamonga and services nearby communities in the Inland Empire. Service availability may vary by distance and scheduling.
 Verified Listing

Opening Hours


  • Monday 7:00 AM – 6:00 PM
  • Tuesday 7:00 AM – 6:00 PM
  • Wednesday 7:00 AM – 6:00 PM
  • Thursday 7:00 AM – 6:00 PM
  • Friday 7:00 AM – 6:00 PM
  • Saturday 7:00 AM – 6:00 PM
  • Sunday Closed

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Business Details


Business Rating
5.00 (16 reviews) FeaturedPro Business
Address
8608 Utica Ave Suite 220 RS, Rancho Cucamonga, CA 91730
Phone
Business Type
general_contractor

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