HVAC in Mesa is mostly a cooling job with a short heating job attached. The normal July high at the East Mesa weather station is 105.9 degrees and the normal December low is 40.1, so the same equipment has to carry a house through months of desert heat and still warm it on a cold morning.
We are JBee Industries, a family-owned, locally operated company with our office on South Horne in Mesa. This page sets out the whole of our heating and cooling work in one place: repair, replacement, maintenance, heating, heat pumps and ductless mini splits, along with the local conditions that shape each one. Where a subject has its own page on this site, we link to it.
Call us and tell us what the system is doing, or what you want it to do better.
What our HVAC work covers
| Service | What it is | When you need it |
|---|---|---|
| AC repair | Diagnosis and repair of a system that blows warm air, has weak airflow, makes unusual noises or will not start | The system has stopped cooling or is clearly struggling |
| AC installation and replacement | A new system sized for the house, installed to code and tested before we leave | Repairs have become frequent, or a major part has failed |
| AC maintenance and tune-ups | Cleaning, inspection and testing of an air conditioner, heat pump or furnace | Once a year at least, before the heat arrives |
| Heating and furnace repair | Repair of gas furnaces, electric furnaces and heat pumps | Cold air, constant cycling or a heater that will not turn on |
| Heat pump installation | One system that cools the house and heats it | You are replacing an air conditioner, a furnace or both |
| Mini split installation | Ductless, zoned heating and cooling for one room or several | An addition, garage, casita or a room that never feels right |
What Mesa’s climate asks of a system
Three local facts explain most of the service calls we take.
- A long cooling season. In the National Weather Service’s 1991 to 2020 averages, Phoenix reaches 100 degrees for the first time on May 2 and for the last time on October 5. That is a five-month stretch in which a system runs for much of every day.
- Hot nights. The normal July low at East Mesa is 78.9 degrees. In 2025 Phoenix recorded 23 nights when the temperature never fell below 90. Equipment that cannot rest overnight wears faster.
- Dust and monsoon moisture. The monsoon season officially runs from June 15 to September 30. It brings dust storms that load filters and outdoor coils, and humidity that fills condensate drains. It is still a dry climate: normal precipitation at the East Mesa station is 10.76 inches a year.
Heat, dust and long run times are behind most of the breakdowns we see in the East Valley. Everything below is built around those three.
Air conditioning repair
Every repair call starts with an accurate diagnosis. We check refrigerant levels, the condenser and evaporator coils, capacitors, electrical connections, airflow and the condensate drain line, and we look for the root cause as well as the failed part. Then we explain what we found and what it will cost before any work begins.
Typical repairs include capacitors and contactors, refrigerant leaks, fan and blower motors, frozen coils, clogged drain lines, thermostat faults and compressor problems. If your system is down now, start with our AC repair in Mesa, AZ page, which has the checks to make before you call. Our air conditioning repair in Mesa page explains each repair part by part.
Replacement and new systems
If a repair makes sense, we tell you so. If a system is near the end of its life, we go through the replacement options with you, including heat pumps and ductless mini splits. A new system is sized from the house itself: square footage, insulation, windows, sun exposure, ceiling height and the condition of the ductwork. An oversized unit cools fast, shuts off and restarts, which wears parts and leaves the air clammy. An undersized one runs without stopping on the hottest days and still falls behind.
We install to manufacturer specifications and local building codes, then check the refrigerant charge, airflow and electrical readings before we leave. Our AC installation in Mesa, AZ page covers the process, the City of Mesa’s permit rule and the SRP rebate program.
Heating and furnace repair
Mesa winters are short, which is why heating failures tend to surprise people on the first cold night. We repair gas furnaces, electric furnaces and heat pumps.
Signs a heater needs attention
- It will not turn on, or it blows cold air.
- Some rooms stay cold while others are warm.
- It cycles on and off every few minutes.
- It bangs, rattles, squeals or grinds.
- A burning smell lingers after the first run of the season. A brief dusty smell on the first start is common. A strong or lasting one means switch it off and call.
- A heat pump is covered in ice or seems stuck in defrost.
- Heating bills rise with no change in how you use the system.
Before you call, check that the thermostat is set to heat, replace a dirty filter and confirm the breaker has not tripped.
What we repair on a furnace
Common furnace repairs include ignitors and flame sensors, blower motors, limit switches, control boards and thermostat problems. We check the safety controls on every heating call.
If you smell gas
Leave the house first. Then call your gas utility or 911 from outside. We repair the heating equipment once the gas side has been made safe. The City of Mesa runs its own natural gas utility, which serves more than 82,000 homes and businesses in Mesa and in its Magma service area, which takes in parts of Queen Creek and San Tan Valley, so check your bill to see who your gas provider is.
Heat pumps
A heat pump is an air conditioner that can run in reverse. In cooling it moves heat out of the house, and in heating it moves heat in. Many Mesa homes use one, and for many of them it is the upgrade we suggest when an old air conditioner or furnace is due for replacement, because one system then does both jobs.
When a heat pump heats poorly, the usual causes are the reversing valve, the defrost control, a refrigerant problem or an electrical fault. Because the same machine cools the house in the hot months, we check both modes on a heating call. A heat pump fault found in January becomes an air conditioning fault in June if it is left.
A struggling heat pump also leans on its backup electric heat, and that raises bills. If yours have climbed with no change in the weather or your habits, that is worth a diagnosis.
Ductless mini splits
A mini split connects an outdoor unit by refrigerant lines to one or more indoor units, and each indoor unit controls its own zone. It suits spaces the central system does not reach or does not serve well:
- garages and workshops
- casitas and guest suites
- home offices and converted rooms
- additions the original ductwork never reached
- west-facing bedrooms that stay hot through the evening
A single ductless zone can also take the pressure off an older central system that struggles with one part of the house, without oversizing the equipment for all of it. We size each zone with a room-by-room load calculation that takes in the room’s dimensions, ceiling height, insulation and heat sources. Then we place the indoor unit for even airflow, route the line set cleanly, set the refrigerant charge to the manufacturer’s specification and confirm the drainage.
Most mini splits need a dedicated electrical circuit. We are an electrical contractor as well as an HVAC contractor, so that circuit is part of the same job. We also repair mini splits we did not install.
Call us about a room that never cools, a heater that is acting up or a system that is due for a tune-up.
Maintenance and tune-ups
Skipping maintenance in Mesa rarely causes an instant failure. It causes slow ones: higher bills, weaker cooling and a breakdown on one of the hottest days, when the system is under the most strain. A tune-up from us covers air conditioners, heat pumps and furnaces, and it includes six things.
- Cleaning the indoor and outdoor coils.
- Checking all major components for damage or signs of coming failure.
- Confirming the temperature split, the difference between the air going in and the air coming out.
- Checking refrigerant pressure.
- Making sure condensation drains properly.
- Changing the filter.
If the visit turns up a problem, we show you, tell you whether it is urgent and give you an upfront repair price. Nothing is done without your approval. We recommend at least one visit a year before the heat arrives, and a second before the cold nights if you want the heating checked as well. Our yearly maintenance agreement includes two visits.
What to do between visits
- Check the air filter every month in the hot season and replace it when it is dirty.
- Keep plants, trash cans and debris at least a couple of feet from the outdoor unit.
- Keep supply vents and return grilles open and clear.
- Watch the electric bill for jumps you cannot explain.
- Call if the system makes a new noise, cools unevenly or cycles more than it used to.
The house around the system
Heating and cooling equipment is one part of a larger system. Attic insulation decides how much heat the air conditioner has to fight, and the electrical panel decides what new equipment the house can power. Our company also installs blown-in attic insulation and does electrical work, so a new system can be planned with both in mind. Those services are described on our main website, jbeeindustrieshvac.com.
Commercial HVAC
We also diagnose, repair and maintain commercial HVAC equipment for East Valley businesses, and we repair medium- and high-temperature refrigeration such as walk-in coolers, reach-in coolers and display cases. We do not service low-temperature equipment such as freezers, and we say so up front if a job is outside our scope.
Where we work in Mesa and the East Valley
Mesa is the third most populous city in Arizona and covers about 138 square miles, with US 60 running through it and Loop 202 around its north and east sides. We work across all of it, from West Mesa and Dobson Ranch to Downtown, The Groves, Alta Mesa, Las Sendas, Superstition Springs and the areas around Falcon Field and Mesa Gateway Airport. We also serve Gilbert, Chandler, Tempe, Queen Creek and San Tan Valley.
To see how to check our company before you call, read the HVAC company in Mesa page.
Call us for HVAC service in Mesa. We give free estimates on new systems and an upfront price on repairs.
Common questions
How often should an HVAC system be serviced in Mesa?
At least once a year, before the heat arrives. Some homeowners add a second visit before the cold nights so the heating is checked too. Our yearly maintenance agreement includes two visits, and we will recommend a schedule based on your home and how hard the system works.
Do heat pumps work well in Mesa?
Yes. A heat pump cools like an air conditioner and heats by running in reverse, which suits Mesa’s short, mild heating season. Many Mesa homes already use one. It needs the same correct sizing as any cooling system, because the hot months are still the harder test.
Why is my heater blowing cold air?
Check first that the thermostat is set to heat and not just to fan, and replace a dirty filter. Other causes include a failed ignitor or flame sensor on a furnace, or a heat pump that is in defrost or has a refrigerant or valve problem. If it is still cold after those checks, call us.
Can a mini split cool a garage in an Arizona hot season?
Yes, if it is sized properly. We run a load calculation for the room that accounts for sun exposure, insulation and ceiling height, then choose the capacity from that. Most mini splits are heat pumps, so the same unit heats the space on cold mornings.
Do you service systems you did not install?
Yes. We diagnose, repair and maintain central air conditioners, heat pumps, furnaces and ductless mini splits installed by other companies.
Do you give free estimates?
Yes. We give free estimates on new systems, and on repairs we give you an upfront price after the diagnosis and before any work begins.
Do you work on commercial HVAC?
Yes. We repair and maintain commercial HVAC equipment and medium- and high-temperature refrigeration, such as walk-in and reach-in coolers and display cases. We do not service freezers or other low-temperature equipment.
Call JBee Industries