Business Details
45 Years
experience
Emergency
services
Trusted HVAC Services in Monrovia, CA
General Heating & Air Conditioning has been a trusted provider of heating and cooling solutions in the San Gabriel Valley since 1981. As a family-owned business, we specialize in residential and commercial HVAC services, including sales, installation, repair, and maintenance of furnaces, heat pumps, and air conditioning systems. Our commitment to quality is reflected in our use of advanced diagnostic tools, energy-efficient products, and a team of certified technicians who stay current with industry regulations and technologies.We prioritize customer satisfaction through transparent service practices, planned maintenance agreements, and tailored solutions for indoor air quality, ductwork, insulation, and home performance optimization. With decades of experience and a focus on innovation, we aim to deliver reliable, cost-effective comfort systems while maintaining a strong reputation built on trust and expertise.
Services
Heating Repair
Air Conditioning Installation
Indoor Air Quality Testing
Attic Insulation
Air Duct Replacement
Planned Maintenance
Home Performance Evaluation
Emergency HVAC Service
Zoning Systems
UV Lamp Installation
Details
- Year established: 1981
Highlights and features
- We have 39 years of experience in HVAC services.
- Our team includes certified technicians with advanced training.
- We service all major HVAC system brands and models.
- We offer planned maintenance agreements for system longevity.
- We prioritize energy efficiency and indoor air quality solutions.
Associations and certifications
- Comfort Institute
Services
Heating Repair
Our heating repair services address furnace, heat pump, and boiler issues with precision and speed. We diagnose problems like ignition failures, thermostat malfunctions, and airflow inconsistencies using advanced tools. Technicians perform repairs to restore efficiency and safety while extending system lifespan through preventive maintenance.
Air Conditioning Installation
We install high-efficiency air conditioning systems tailored to home size and climate needs. Services include unit selection, ductwork evaluation, and zoning system integration. Our team ensures proper refrigerant charging and airflow calibration to maximize cooling performance and energy savings for both residential and commercial properties.
Indoor Air Quality Testing
Our indoor air quality testing identifies contaminants like mold, pollen, and VOCs using specialized equipment. We assess humidity levels, ventilation efficiency, and filtration systems to create customized solutions. Recommendations may include air purifiers, UV lamps, or ventilation upgrades to enhance health and comfort.
Attic Insulation
We install PINK Fiberglas blown-in insulation and radiant barrier foil to improve thermal efficiency. Proper attic insulation reduces energy costs by preventing heat transfer while maintaining consistent indoor temperatures. Our experts calculate R-value requirements and apply materials to meet building codes and energy rebate programs.
Air Duct Replacement
Our duct replacement services eliminate energy loss from leaks and poor configuration. We use diagnostic testing to determine replacement needs and install sealed, properly sized ducts. This improves HVAC efficiency, reduces dust accumulation, and ensures even temperature distribution across all building zones.
Questions
What HVAC services do you offer?
We provide heating repair, air conditioning installation, indoor air quality testing, attic insulation, air duct replacement, and planned maintenance agreements for residential and commercial clients.
Do you serve areas outside California?
No, we exclusively serve communities within California, including the San Gabriel Valley and surrounding regions listed on our service areas page.
Are emergency HVAC services available?
Yes, we offer emergency repair services for urgent heating and cooling system failures outside regular business hours.
Can I schedule preventive maintenance?
Yes, our planned maintenance agreements include biannual inspections, filter replacements, and system tune-ups to prevent breakdowns and extend equipment life.
Do you offer financing options?
Yes, we provide financing programs to help customers manage the cost of HVAC system upgrades and major repairs.
How do you improve indoor air quality?
We use air purifiers, UV lamps, ventilation systems, and humidity control devices to reduce allergens, pathogens, and pollutants in residential and commercial spaces.
Reviews (6)
Christopher Caceres
Feb 16, 2021
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I used to work there, I used to think they were over priced, but then I went to work for a facility that received multiple bids and have used other companies, and those other companies quality doesn't compare to Generals, their not the cheapest but you get what you pay for, good quality!
Jennifer Herstein
Jan 30, 2020
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We've been using General for years now. We had them install a new system at our old house about 10 years ago and we just moved to a new house where we discovered the AC was 35 years old after it took its final breath when we turned it on for the first time. Even though Southern California was in the middle of a heat wave with everyone calling around to get AC fixed, General was able to send someone out within a couple days to give us an estimate for a new condenser and furnace. The installers were awesome! Very friendly and knowledgeable and they cleaned up after themselves each day. Also, the office folks are really helpful every time I call.
Autonomy
Nov 16, 2019
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We were very happy with the mini--split system that was installed in our home. The sales representative that came to our home was extremely knowledgeable and thorough. The installers were courteous and hard-working. We have been using this company for many years and have been satisfied with their products and service. I had to substract one star because of some communication problems that we had about the final billing. It all worked out it in the end but we didn't expect to have to pay more than the original estimate.
Starr Miller
Nov 05, 2019
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The representative was on time and so wonderful! He answered and explained all our questions. He found the problem and it was fixed! I would highly recommend GENERAL to all home owners! I'd also like to mention that you recieved a text with a picture of the representative who's coming which I found to be really awesome! These days you just can't be to sure! Thank you Mr. Rodriguez.
Professer
Jun 16, 2019
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The staff and crew were very thorough and professional. We decided to go with zoning due to the energy efficiency. Have had zero issues since the work was done. The work was done so well that we recommended the company to my dad. Would highly recommend this company to anyone.
Paul Esset
Apr 04, 2019
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General just completed putting in a whole new HVAC system in my home in Upland. They did an outstanding job. I did some investigating on HVAC systems before starting to get quotes. Of all the bids I received, Darryl, the General salesman was the most knowledgeable about his field. The installers were on time, professional, courteous, and left the house immaculate. I would highly recommend General for your HVAC needs!
