Heating & Air Conditioning in City of Industry, CA
Heating and cooling systems in the City of Industry often operate under demanding conditions. Warehouses, manufacturing plants, distribution centers, offices, retail buildings, restaurants, showrooms, and mixed commercial facilities can have longer operating hours, higher internal heat loads, frequent door activity, and more demanding filtration requirements than a typical residential property.
Connor Air Conditioning & Heating provides professional commercial and residential HVAC services throughout the City of Industry. Since 1976, our team has helped businesses, property managers, building owners, contractors, and homeowners maintain dependable indoor comfort with experienced repair, replacement, installation, preventive maintenance, heat pump services, ductless mini splits, air duct testing, and professional duct cleaning.
Our NATE-certified technicians service all major HVAC brands and install quality Lennox heating and cooling systems. Whether you need a failed air conditioner diagnosed, an aging rooftop unit replaced, a warehouse office cooled, or a complete HVAC system designed for a retrofit project, we evaluate the building and recommend a solution based on its actual requirements.
Call Connor Air Conditioning & Heating at (626) 286-3157 or request HVAC service online.
Commercial and Residential HVAC Services in the City of Industry
No single HVAC design is appropriate for every City of Industry property. A small administrative office, large distribution warehouse, manufacturing floor, retail showroom, restaurant, equipment room, and residential building can each require different equipment capacities, controls, airflow, filtration, zoning, and maintenance schedules.
Connor Air provides heating and air conditioning support for qualifying properties such as:
- Warehouses and distribution facilities
- Manufacturing and light-industrial buildings
- Wholesale and logistics operations
- Offices and professional buildings
- Retail stores and showrooms
- Restaurants and food-service properties
- Mixed-use and multi-tenant buildings
- Server, electrical, and equipment rooms
- Residential properties and accessory spaces
- New-construction and retrofit projects
Our services include air conditioning repair and installation, furnace repair and replacement, heat pump installation, ductless mini split systems, packaged equipment, preventive maintenance, air duct leakage testing, and duct cleaning.
HVAC Challenges for City of Industry Businesses
The City of Industry is built around manufacturing, logistics, wholesale, distribution, retail, and other commercial operations. These properties may experience greater HVAC stress than buildings used only during standard residential hours.
Facilities near Valley Boulevard, Gale Avenue, Workman Mill Road, Azusa Avenue, Fullerton Road, Hacienda Boulevard, Grand Avenue, and the 60 and 605 freeway corridors vary considerably in square footage, ceiling height, construction, insulation, loading activity, and indoor heat production.
A warehouse may need to manage heat entering through loading doors and high roofs. An office inside that warehouse may require its own temperature control. Manufacturing equipment can add substantial heat to a work area, while retail and showroom spaces may need consistent comfort for employees and customers throughout the day.
Common heating and cooling concerns include:
- Air conditioners that run continuously during operating hours
- Hot offices located inside warehouses or production buildings
- Uneven temperatures between offices, showrooms, storage areas, and work floors
- Heavy filter loading caused by dust and outdoor particles
- High energy consumption from aging or incorrectly sized equipment
- Temperature changes caused by loading doors opening frequently
- Heat generated by machinery, computers, lighting, or refrigeration equipment
- Inadequate zoning after a tenant improvement or building reconfiguration
- Repeated breakdowns caused by extended equipment run times
- Duct leakage or poor airflow in large or modified buildings
Resolving these issues requires an evaluation of the entire system. Equipment condition, cooling and heating capacity, ductwork, filtration, controls, occupancy, business hours, machinery, ceiling height, insulation, and building use can all influence performance.
Commercial HVAC Repair
An HVAC failure can affect more than comfort. Excessive indoor heat may disrupt employees, customers, products, computers, machinery, or daily business operations. In some buildings, losing cooling can make occupied spaces difficult to use until service is restored.
Connor Air provides commercial HVAC diagnosis and repair for qualifying split systems, packaged equipment, rooftop units, heat pumps, furnaces, air conditioners, thermostats, and connected controls.
Commercial HVAC problems may include:
- Failed capacitors, contactors, relays, or control boards
- Damaged electrical connections or wiring
- Refrigerant leaks or incorrect system performance
- Frozen evaporator coils
- Blocked condensate drains
- Dirty indoor or outdoor coils
- Blower motor or condenser fan failures
- Thermostat, sensor, or zoning problems
- Restricted filters and inadequate airflow
- Compressor-related failures
Our technicians identify the source of the failure before recommending work. When a reliable repair is possible, we explain the needed repair and the overall condition of the equipment. When the system has become unreliable or a major component has failed, we can help evaluate replacement.
Air Conditioning Repair in City of Industry
Cooling problems frequently begin before an air conditioner stops operating completely. Warm air, weak airflow, unusual noises, water around indoor equipment, short cycling, frozen refrigerant lines, and unexplained increases in electricity use can all indicate developing trouble.
Connor Air provides experienced air conditioning repair for all major HVAC brands. Our technicians evaluate both the failed component and the conditions that may have contributed to the failure.
For example, replacing a damaged motor may not solve the long-term problem if the system also has restricted airflow, dirty coils, excessive static pressure, or heavily loaded filters. A complete diagnosis helps prevent repeated component failures and unnecessary repairs.
Commercial Air Conditioning Installation and Replacement
Commercial cooling systems must be selected according to the building’s actual load—not square footage alone. Warehouses, factories, retail buildings, offices, and restaurants can have very different internal heat loads and operating requirements.
Connor Air provides professional air conditioning installation for qualifying replacement, retrofit, and new-construction projects.
Before recommending equipment, our team may evaluate:
- Building size, layout, and ceiling height
- Construction, insulation, and roof exposure
- Window area and afternoon solar gain
- Occupancy and operating schedules
- Heat generated by machinery, computers, lighting, or cooking equipment
- Loading doors and outdoor-air infiltration
- Existing ductwork and return-air capacity
- Electrical service and equipment location
- Required zoning and control strategies
- Comfort, sound, efficiency, and reliability priorities
An oversized system may short cycle, create uneven temperatures, and place unnecessary stress on components. An undersized system may run continuously without maintaining the desired conditions. Proper sizing, equipment matching, duct design, airflow setup, refrigerant charging, drainage, controls, and startup testing all influence long-term performance.
Connor Air installs quality Lennox air conditioning systems and can also evaluate packaged or other system configurations when appropriate for the building.
Rooftop and Packaged HVAC Systems
Many commercial buildings use packaged or rooftop HVAC equipment because it combines major heating and cooling components within a compact configuration. These systems can be practical for warehouses, offices, showrooms, retail spaces, and other buildings where indoor mechanical space is limited.
Rooftop and packaged units still require careful system design. Capacity, curb and equipment compatibility, duct connections, electrical requirements, gas service, drainage, controls, roof access, airflow, and maintenance clearances must all be considered.
Connor Air services qualifying packaged systems and rooftop units and can evaluate replacement options when existing equipment has become inefficient, unreliable, or difficult to repair.
Furnace Repair and Commercial Heating Service
Although Southern California has mild winters, dependable heat remains important for early-morning shifts, offices, retail spaces, production areas, and buildings where employees remain in one location for long periods.
Connor Air provides experienced furnace repair throughout its Los Angeles County service area, including the City of Industry.
Heating problems may involve:
- Ignition or burner failures
- Thermostat and control problems
- Restricted filters or poor airflow
- Blower motor failures
- Electrical component problems
- Safety-control shutdowns
- Damaged or disconnected ductwork
- Improper venting or combustion concerns
A furnace that fails to ignite, produces unusual odors, cycles repeatedly, or makes unfamiliar noises should be evaluated. Gas-burning equipment requires proper combustion, venting, airflow, electrical operation, and safety-control performance.
Furnace Installation and Replacement
When an older furnace becomes unreliable, inefficient, or too costly to repair, a properly designed replacement can improve heating performance and reduce the risk of business interruptions.
Connor Air provides professional furnace installation for qualifying commercial and residential properties. Before selecting equipment, we consider the heating load, ductwork, venting, airflow, equipment location, cooling-system compatibility, controls, and intended use of the building.
Correct sizing matters. An oversized furnace may cycle too frequently and create temperature swings, while an undersized system may operate for extended periods without providing adequate heat.
Heat Pump Installation in City of Industry
A heat pump provides both heating and cooling through one system. During warm weather it moves heat out of the building. During cooler weather it reverses operation and transfers heat indoors.
Connor Air provides professional heat pump installation for qualifying commercial and residential properties. Southern California’s moderate winter climate can make heat pumps a practical option, particularly when both heating and cooling equipment are due for replacement.
A heat pump may be worth considering when:
- The property needs both new heating and cooling equipment
- You want one system to provide year-round comfort
- You are evaluating an all-electric HVAC configuration
- You want modern variable-capacity temperature control
- The existing system no longer matches the building’s use
Equipment selection must account for building load, operating hours, ductwork, electrical capacity, equipment location, and comfort requirements. Connor Air installs Lennox heat pump systems and can explain how available options would perform in the property.
Ductless Mini Splits for Offices and Specialized Spaces
Many City of Industry buildings contain enclosed spaces that are difficult to serve from the main HVAC system. A warehouse office, server room, conference room, converted storage area, quality-control room, detached workspace, or equipment area may need independent heating and cooling.
Connor Air provides professional mini split installation for commercial and residential properties.
Ductless mini splits may be useful for:
- Offices constructed inside warehouses
- Server and communications rooms
- Conference and training rooms
- Equipment and control rooms
- Reception areas and showrooms
- Building additions and converted spaces
- Detached offices and workshops
- Rooms with persistent hot or cold spots
A single-zone system serves one designated space. A multi-zone system can connect multiple indoor units to one outdoor unit and provide individual temperature control in several areas.
Connor Air installs Mitsubishi mini split systems and Samsung mini split systems. Capacity, indoor-unit placement, refrigerant piping, condensate drainage, electrical requirements, controls, and outdoor-unit placement must all be designed carefully.
Preventive Commercial HVAC Maintenance
Commercial equipment often runs longer and experiences more demanding conditions than residential HVAC systems. Preventive maintenance can identify worn components, filter restrictions, dirty coils, drainage issues, electrical concerns, and declining performance before they lead to unexpected downtime.
Connor Air offers preventive HVAC maintenance for qualifying commercial and residential systems.
Depending on the equipment, maintenance may include:
- Checking thermostat and control operation
- Inspecting electrical components and connections
- Evaluating heating and cooling performance
- Inspecting filters and airflow
- Checking blower and fan operation
- Inspecting condensate drainage
- Reviewing accessible coils and mechanical components
- Checking heating and safety controls
- Identifying signs of wear or developing failure
Maintenance frequency should reflect the equipment type, operating hours, environment, occupancy, and filter loading. A system serving a dusty warehouse or operating through multiple shifts may require more frequent attention than a unit serving a small office during normal business hours.
Airflow and Air Duct Leakage Testing
Even properly sized equipment cannot perform efficiently if conditioned air is lost through leaking, disconnected, restricted, or poorly designed ducts. Air may escape above ceilings, into wall cavities, onto rooftops, or through utility areas before it reaches occupied spaces.
Possible duct and airflow problems include:
- Weak airflow at distant registers
- Large temperature differences between departments or rooms
- Long equipment run times
- High heating and cooling costs
- Whistling, rattling, or leakage sounds
- Visible damaged or disconnected duct sections
- Excessive dust around supply vents
- Comfort problems that continue after equipment repair
Connor Air provides professional air duct leakage testing to help determine whether air loss is reducing comfort and system performance.
Professional Air Duct Cleaning
Warehouses, manufacturing facilities, construction projects, loading activity, traffic, and everyday building operations can introduce dust and debris into a property. In certain situations, contaminants may accumulate inside the duct system.
Connor Air provides professional air duct cleaning in the City of Industry and throughout the San Gabriel Valley and Los Angeles County.
Duct cleaning may be appropriate after:
- Major construction or tenant improvements
- Heavy dust or debris intrusion
- Pest activity inside the duct system
- Smoke or water-related contamination
- Visible substantial buildup inside accessible ducts
- A known event that introduced contaminants into the system
Duct cleaning should be recommended for a specific condition rather than treated as a cure for every indoor-air complaint. Filtration, outdoor air, duct leakage, equipment cleanliness, occupancy, ventilation, and business operations can also affect indoor air quality.
Repair or Replace Commercial HVAC Equipment?
The better decision depends on more than equipment age. Repair cost, system condition, reliability, operating expense, replacement-part availability, building use, and the consequences of future downtime should all be considered.
Repair may make sense when:
- The equipment is relatively new
- The required repair is limited and cost-effective
- The system has otherwise been reliable
- The equipment still meets the building’s present needs
- Replacement would provide limited practical benefit
Replacement may deserve consideration when:
- The system requires increasingly frequent repairs
- A major component has failed
- Replacement parts are difficult to obtain
- Energy consumption has increased substantially
- The building’s use has changed since the system was designed
- The equipment cannot maintain consistent temperatures
- System downtime interferes with business operations
- The equipment is near the end of its expected service life
Connor Air can inspect the equipment and explain the expected benefits, limitations, and likely outcome of the available options.
Why City of Industry Businesses Choose Connor Air
- Serving Southern California since 1976: Decades of heating and cooling experience throughout the San Gabriel Valley and Los Angeles County.
- Commercial HVAC capabilities: Service for qualifying warehouses, offices, retail buildings, manufacturing facilities, and distribution properties.
- NATE-certified technicians: Recognized technical training and HVAC knowledge.
- Licensed California contractor: Contractor license number 403735.
- All major brands serviced: Experienced diagnosis and repair for a wide range of HVAC equipment.
- Lennox installation expertise: Quality air conditioning, furnace, heat pump, and packaged-system options.
- New-construction and retrofit experience: HVAC design and installation for qualifying projects.
- Complete-system evaluation: Attention to equipment, airflow, ductwork, controls, occupancy, and building use.
- Clear recommendations: Practical explanations based on system condition and operational needs.
Read feedback from local customers on Connor Air’s customer reviews page.
Frequently Asked Questions
Does Connor Air provide commercial HVAC service in the City of Industry?
Yes. Connor Air provides commercial HVAC repair, replacement, installation, and preventive maintenance for qualifying offices, warehouses, manufacturing facilities, distribution buildings, retail properties, and other businesses.
What types of commercial HVAC systems does Connor Air service?
Connor Air services qualifying rooftop units, packaged systems, split systems, heat pumps, mini splits, furnaces, air conditioners, thermostats, controls, and connected duct systems.
Does Connor Air repair all HVAC brands?
Yes. Connor Air services and repairs all major heating and cooling brands and installs quality Lennox HVAC systems.
Can Connor Air install systems for retrofit or new-construction projects?
Yes. Connor Air provides HVAC design and installation for qualifying replacement, retrofit, and new-construction projects. Equipment selection follows an evaluation of the building load, ductwork, electrical requirements, intended use, and operating schedule.
How often should commercial HVAC equipment be maintained?
Maintenance frequency depends on equipment type, operating hours, occupancy, filtration demands, and environmental conditions. Systems that run for extended hours or operate in dusty industrial settings may require more frequent service.
Can a mini split cool an office inside a warehouse?
Often, yes. A correctly sized mini split can provide independent temperature control for an enclosed warehouse office, server room, conference room, equipment area, or other designated space. The room’s cooling load and operating requirements should be evaluated before equipment is selected.
When should commercial ductwork be tested for leakage?
Duct leakage testing may be useful when a building has weak airflow, uneven temperatures, unusually long system run times, high energy use, visible duct damage, or comfort problems that continue after the HVAC equipment has been serviced.
Should an older commercial HVAC system be repaired or replaced?
The decision depends on age, condition, repair history, operating cost, reliability, replacement-part availability, and how future downtime could affect the business. A professional diagnosis is needed before comparing the options.
Schedule HVAC Service in City of Industry
Whether you need commercial air conditioning repair, rooftop or packaged-system service, preventive maintenance, furnace assistance, a heat pump, mini split installation, duct leakage testing, duct cleaning, or an estimate for replacement equipment, Connor Air Conditioning & Heating is ready to help.
Since 1976, our team has provided experienced diagnosis, careful system design, professional installation, and dependable heating and cooling solutions for businesses and properties throughout the City of Industry and Los Angeles County.
Call (626) 286-3157 or contact Connor Air Conditioning & Heating to schedule HVAC service in the City of Industry, CA.

Air Duct Cleaning
Pricing Can Range from $750.00 – $1,500.00
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EXCELLENT Based on 53 reviews Posted on Google Woogie WTrustindex verifies that the original source of the review is Google. Connor Air was the best AC company among all the different estimates we got. We chose them out of 5-6 estimates because Jared and his staff are just the nicest people to work with. Very helpful in designing a system that worked best for our home. Jared designed us a beautiful heat pump system. Thanks Connor Air.Posted on Google Kevin MTrustindex verifies that the original source of the review is Google. We have been using Connor Air Conditioning since they installed our new Lennox central A/C heating system in July 2020. No problems. Great people, always a great job! We use their Preventative Matenance program every year and have dependable service every time. Thank you, Connor AirPosted on Google Kevin CTrustindex verifies that the original source of the review is Google. I recently had my complete heating and air conditioning system replaced by Connor. Jarred gave me a good estimate and explained everything that needed to be done. His crew showed up when he said they would, did a great job, and cleaned up at the end of each day. Our system works great and I would highly recommend them to anyone who asks.Posted on Google David VTrustindex verifies that the original source of the review is Google. They responded quickly to our request for a price. It was much less money than our other bids for the same equipment and labor. They got it all done in about a week and time on site was only part of one morning. We also now have them for the maintenance program.Posted on Google Victor HTrustindex verifies that the original source of the review is Google. I called Connor Air & Heating after having a bad experience with Air-tro, who couldn't fix the problem. Eric from Connor came out and over the next three hours diagnosed the problem, replaced the central heating circuit board and thermostat, both of which he had in his truck. Got everything to work....then the fuse on the circuit board started to trip because of excess heat. Turns out he realized I had too many vents closed which caused the unit to turn off. Amazing. Now several days later the heater is working like a charm. I would wholeheartedly recommend Connor Air Conditioning & Heating.Posted on Google S TTrustindex verifies that the original source of the review is Google. Our AC went out over the holiday weekend. Needed a couple of parts. Conner AC came through like a champ. And Acosta cannot be beat.