Business Details
34 Years
experience
Trusted HVAC Services in Union City, CA
Gosal Heating & Air Conditioning has been delivering high-quality HVAC services since 1992, serving Castro Valley, Fremont, Hayward, Milpitas, Newark, San Jose, Saratoga, Sunnyvale, and Union City. Specializing in installation, repair, and maintenance of heating and cooling systems for residential and commercial clients, the company combines technical expertise with a commitment to customer satisfaction. Their team of experienced technicians provides competitive pricing and personalized solutions, ensuring optimal indoor climate control year-round.As an authorized Carrier dealer, they offer advanced HVAC products and maintain an A+ rating with the Better Business Bureau since 1998. The company emphasizes skilled craftsmanship, prompt service, and long-term customer relationships, backed by decades of industry experience and a focus on energy-efficient solutions.
Services
AC Installation
AC Replacement
Heating Installation
Heating Replacement
Heat Pumps
Furnaces
Duct Cleaning
Commercial HVAC
Smart Thermostats
Ductless Systems
Details
- Year established: 1992
Highlights and features
- Authorized Carrier dealer with factory-trained technicians
- Maintains A+ Better Business Bureau rating since 1998
- Experienced team with competitive pricing for homes and businesses
- Comprehensive HVAC services for residential and commercial clients
- Energy-efficient solutions with advanced Carrier technology
Associations and certifications
- Carrier Corporation
- Better Business Bureau (BBB)
What people say
Prompt and technical
Professional advice
Great experience
Reasonable pricing
Highly recommended
Services
AC Installation
Professional air conditioning installation services ensure optimal cooling performance for residential and commercial properties. Our certified technicians handle system sizing, proper refrigerant charging, and ductwork integration. We specialize in Carrier brand installations while maintaining compatibility with existing HVAC infrastructure, guaranteeing energy efficiency and long-term reliability for both new constructions and system replacements.
Heating Services
Comprehensive heating solutions including furnace installation, repair, and maintenance across the Bay Area. Our services cover gas, electric, and oil-based systems with expertise in high-efficiency Carrier models. We provide seasonal tune-ups, emergency repairs, and complete system replacements, ensuring consistent warmth and indoor air quality through proper ventilation and system optimization.
Heat Pumps
Specialized heat pump services for both residential and commercial applications. We offer installation of energy-efficient Carrier models, routine maintenance, and repair services for existing systems. Our technicians handle both air-source and ground-source heat pump technologies, ensuring year-round temperature control with reduced energy consumption through proper system sizing and refrigerant management.
Ductless Systems
Expert installation and service for ductless mini-split systems in homes and businesses. Our Carrier-certified technicians handle single-zone and multi-zone configurations with various indoor unit options. We specialize in retrofitting older buildings without existing ductwork, providing precise temperature control for additions, garages, and commercial spaces while maintaining energy efficiency through proper system calibration.
Smart Thermostats
Advanced smart thermostat installation and integration services for residential and commercial HVAC systems. We offer Carrier Infinity controls and ecobee models with Wi-Fi connectivity, zoning capabilities, and energy usage monitoring. Our technicians ensure proper system compatibility and programming, enabling remote temperature management and optimized energy savings through learning algorithms and occupancy sensors.
People
Kesar Singh
Founder/Owner
With over 30 years of HVAC experience, Kesar Singh leads Gosal Heating & Air Conditioning as founder and owner. He personally oversees complex installations and repairs, maintaining hands-on involvement in customer service. His technical expertise and commitment to quality have established the company's reputation for reliable service since 1992.
Questions
What HVAC services do you offer for residential customers?
We provide complete residential HVAC services including AC installation, furnace replacement, heat pump maintenance, ductless systems, and smart thermostat installation across the Bay Area.
Are you an authorized Carrier dealer?
Yes, we are a certified Carrier factory-authorized dealer offering their full product line with expert installation and service support.
Do you service commercial HVAC systems?
Yes, we specialize in commercial HVAC systems including installation, maintenance contracts, and emergency repairs for businesses in Union City and surrounding areas.
What financing options are available?
We offer 0% interest financing programs for qualified customers on new HVAC system installations and major repairs.
What areas do you serve?
We serve Castro Valley, Fremont, Hayward, Milpitas, Newark, San Jose, Saratoga, Sunnyvale, and Union City in California.
Reviews (6)
Manpreet Bains
Jun 06, 2022
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Highly recommend Gosal Heating and Air Conditioning! Very professional and responsive. Installed a new HVAC system for us in a timely manner. Prices are competitive and a great value. Services: Installation, A/C system maintenance, Install thermostat, Install AC, A/C system repair, Repair HVAC
Sandeep Singh
May 19, 2022
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Gosal installed a new furnace in our hallway closet and we also ended up adding an AC unit in the back yard for the summer time. Price was reasonable compared to the big companies and the whole installation was finished in two days. Service: Installation
Marshall Kirk McKusick
May 11, 2022
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We had purchased a Rannai free-standing heater to replace an existing 96-year-old heater. We called several HVAC companies to get an estimate on the cost to have the old heater removed and the Rannai installed. First problem that we ran into was that it was too small of a job (usually made obvious by their $3000 minimum for any on-site work). Others would only install heaters that we purchased from them.
We finally found Gosal Heating and Air Conditioning. They did not feel a need to send a sales-person to our house, just asked for a photo of the old and new heaters. Upon receipt of the pictures they replied with a very reasonable quote for installation. They fit their installation day into our schedule, arrived at the appointed time, discussed the installation options, got the job done in five hours, and cleaned up when they were done. Excellent work. Highly recommended.
We finally found Gosal Heating and Air Conditioning. They did not feel a need to send a sales-person to our house, just asked for a photo of the old and new heaters. Upon receipt of the pictures they replied with a very reasonable quote for installation. They fit their installation day into our schedule, arrived at the appointed time, discussed the installation options, got the job done in five hours, and cleaned up when they were done. Excellent work. Highly recommended.
Percy Pai
Apr 23, 2022
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We replaced the furnace and Installed new A/C. Kesar is a great communicator from the beginning till the end. I'm very satisfied with his services. Service: Installation
Ronak Patel
Apr 22, 2022
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Kedar was extremely professional and completed the job well. No complaints. Explained everything thoroughly. Service: Installation
James Parker
Apr 16, 2022
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I needed to get my 55-year-old heater replaced and i looked at a lot of companies and interviewed several. I decided on Gosal Heating and Air Conditioning because of the cost and the honesty of the information received to make an educated decision on who i will hire. I am so glad i hired Gosal Heating and Air. I not only had my heater replaced but i also went with Air Conditioning. They installed in a timely manner and the installation went great.
I referred 3 people to Gosal Heating and they hired him also. All of us are happy with Gosal. I would not recommend going with anyone else. This is the company to do business with. I have another house and i will go with Gosal again when it is time to replace my system. I am extremely happy.
I referred 3 people to Gosal Heating and they hired him also. All of us are happy with Gosal. I would not recommend going with anyone else. This is the company to do business with. I have another house and i will go with Gosal again when it is time to replace my system. I am extremely happy.
