Business Details
45 Years
experience
Emergency
services
Your Trusted Partner for HVAC Solutions in Wausau, WI
Gilray Heating & Cooling has been dedicated to providing exceptional HVAC services in Wausau, Wisconsin, since 1981. As a Lennox Premier Dealer, we combine cutting-edge technology with decades of expertise to deliver reliable heating, cooling, and indoor air quality solutions. Our certified technicians prioritize customer satisfaction, offering 24/7 emergency support and same-day service for urgent needs. We specialize in furnace repair, air conditioning installation, heat pump maintenance, and energy-efficient system upgrades tailored to central Wisconsins climate.With a focus on quality equipment and personalized service, we ensure lasting comfort for residential and commercial clients across Marathon County and surrounding areas. Our commitment to innovation is reflected in our partnerships with industry leaders like Lennox, Thermo-Pride, and Weil McLain Boilers. From routine maintenance to complete system replacements, we deliver transparent pricing, expert guidance, and post-service follow-up to guarantee optimal performance and customer peace of mind.
Services
Furnace Repair
Air Conditioning Installation
Heat Pump Maintenance
Boiler Replacement
Thermostat Upgrades
Garage Heater Installation
Packaged System Services
Mini-Split Systems
HVAC Maintenance Plans
Emergency HVAC Service
Details
- Year established: 1981
Highlights and features
- We offer 24/7 emergency HVAC support for urgent heating and cooling needs
- Our NATE-certified technicians provide expert service for all major brands
- We partner with Lennox to offer energy-efficient systems with rebates up to $1,800
- We guarantee same-day service whenever possible for urgent repairs
- We provide financing options with no interest for 12 months on qualified purchases
Services
Furnace Repair
Our NATE-certified technicians provide rapid furnace repair services for all brands, ensuring reliable heating during Wisconsin winters. We diagnose issues like ignition failures, thermostat malfunctions, and airflow problems with precision diagnostics. Emergency repairs are prioritized with same-day service availability, using factory-certified replacement parts to restore system efficiency and safety.
Air Conditioning Installation
We specialize in installing energy-efficient air conditioning systems from Lennox and other trusted brands. Our process includes load calculations to determine optimal system size, recommending models with features like variable-speed compressors and smart thermostat integration. Installations follow manufacturer specifications to ensure proper refrigerant charge and airflow, maximizing cooling efficiency and warranty protection.
Heat Pump Maintenance
Regular maintenance extends heat pump longevity and maintains energy efficiency. Our technicians inspect refrigerant levels, clean coils, test electrical components, and lubricate moving parts during seasonal tune-ups. We identify potential issues before they cause system failures, ensuring reliable year-round climate control for residential and commercial properties.
Boiler Replacement
We install high-efficiency boilers from leading manufacturers, including gas-fired, oil-fired, and steam models. Our experts assess existing systems to recommend replacements that match heating demands while reducing energy consumption. New installations incorporate proper venting, water pressure regulation, and smart controls for enhanced comfort and cost savings.
Mini-Split Systems
Our Lennox-powered mini-split solutions address heating and cooling needs in spaces without ductwork. We design zoned systems for garages, additions, and hard-to-heat areas, offering wall-mounted, ceiling-recessed, and floor-standing units. Installations include refrigerant line routing and smart control integration for energy-efficient temperature management across multiple zones.
People
Randy Gilray
Founder
Randy Gilray established Gilray Heating & Cooling in 1981 to meet central Wisconsin's growing HVAC needs. With over four decades of industry experience, he built the company on principles of quality service and customer satisfaction. Randy's leadership established long-term partnerships with top manufacturers, ensuring access to advanced heating and cooling technology for local clients.
Questions
What HVAC services do you offer in Wausau?
We provide furnace repair, air conditioning installation, heat pump maintenance, boiler services, thermostat upgrades, and 24/7 emergency HVAC support across central Wisconsin.
Do you offer emergency HVAC repair services?
Yes, we provide 24/7 emergency support for urgent heating and cooling issues with response times prioritized for critical system failures.
Are financing options available for new HVAC systems?
Yes, qualified buyers can take advantage of 0% interest financing for 12 months on new Lennox system purchases through our partnership programs.
What areas do you serve besides Wausau?
We serve Marathon County and surrounding communities including Antigo, Merrill, Mosinee, Rothschild, Schofield, and Weston.
How can I schedule HVAC service?
Call 715-515-7221 for immediate assistance or use our online contact form to request appointments for repairs, installations, or maintenance.
Reviews (5)
Zak Prom
Jun 21, 2021
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Critical:Professionalism,Quality
Friend had a problem with his evaporator dumping water all over his furnace and floor. This company installed the completely wrong sized evaporator coil for the furnace and covered the imperfections with foil tape, also ran bad drain lines. Do not recommend.
Friend had a problem with his evaporator dumping water all over his furnace and floor. This company installed the completely wrong sized evaporator coil for the furnace and covered the imperfections with foil tape, also ran bad drain lines. Do not recommend.
Penny Wiskowski
Feb 06, 2021
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I had a very noisy episode with my furnace and it really scared me. I called Gilray and when they showed up, we found that a mouse had committed suicide in our furnace, which is what caused the noise. He completely cleaned out the interior of the furnace and checked everything for us! I will now have my furnace cleaned yearly, he found it wasn't the first visitor from above! Great service, great prices, now a loyal customer.
Kathy Mathie
Dec 14, 2020
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Positive:Professionalism,Responsiveness
I have used Gilray several times over the years and they are professional and timely in there service and give friendly and courteous service. Highly recommend.
Services:Install AC,Repair AC,Repair heating system
I have used Gilray several times over the years and they are professional and timely in there service and give friendly and courteous service. Highly recommend.
Services:Install AC,Repair AC,Repair heating system
Kimberly Rodriguez
Jun 27, 2020
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Our gas furnace has been leaking water since early fall when we first turned it on for the season. Multiple attempts to schedule with a different provider, recommended by a friend, were unsuccessful. I left my name and information several times, and never received call-back. Low on cash, I decided to use up whatever firewood, heating the house by fireplace for the season instead. Running out of wood early, I again attempted to contact Gilray's competition, as the amount of water leaking from the furnace had significantly increased. Kindly, a representative from Wills called me back stating they
Cindy S.
Mar 16, 2019
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Suppose to come on a Monday or Tuesday to service our furnace. Never came and never returned calls. This was when it was really cold. What a way to run a business!! And what a way to leave people who need help hanging. Terrible!!!
