We service Barrington, IL & Greater Chicagoland. Not sure if we service your area? Give us a call.
When residents of Mount Prospect, IL need reliable comfort solutions, they turn to the proven experts at RJ's Heating, Cooling & Water Heaters. With more than 20 years of experience serving the Northwest Suburbs, we deliver certified HVAC service, emergency repairs, energy-efficient upgrades, and customer-first care that sets us apart.
Whether you're facing a surprise furnace breakdown or planning to replace your aging air conditioner, RJ's brings the tools, training, and trusted brands to deliver lasting results. We proudly service all makes and models and specialize in Armstrong, Ducane, Daikin, Burnham, Weil-McLain, MagicPak, and State water heaters. From historic homes to new construction, our systems are designed to keep your indoor air clean, your energy bills low, and your comfort consistent.
Homeowners and business owners in Mount Prospect also benefit from financing options, custom ductwork fabrication, and our Comfort Club Maintenance Plan, ensuring service is both convenient and cost-effective.
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At RJ's Heating, Cooling & Water Heaters, we believe that quality HVAC services should be affordable for every homeowner and business. That's why we offer flexible financing options to help you invest in new heating, cooling, or water heating systems without financial stress.
Whether you need a new furnace, air conditioner, or water heater, our trusted financing partners make it easy to spread out payments over time. Contact us today to learn more about your financing options in Barrington, IL!
Apply NowMount Prospect homeowners benefit from whole-home air quality upgrades to improve health, comfort, and HVAC performance.
Whether you're upgrading an older HVAC system or building from the ground up, we fabricate ducts in-house for perfect fit and performance.
Mount Prospect businesses need dependable comfort systems to protect productivity and customer experience. RJ's delivers.
Prevent costly breakdowns and keep your HVAC system running at peak efficiency year-round with our Comfort Club Maintenance Plan. Routine HVAC maintenance improves energy efficiency, extends system lifespan, and prevents unexpected failures. Regular maintenance saves you money on energy bills and prevents costly emergency repairs. Sign up today and enjoy worry-free heating and cooling throughout the Chicagoland area!
Join Our Comfort Club Comfort Club DetailsSeasonal HVAC tune-ups to ensure optimal performance.
Priority service—jump to the front of the line for repairs.
Exclusive discounts on repairs and system replacements.
Extended equipment lifespan through regular maintenance.
Furnace and AC inspections & tune-ups
Ductwork and air filter checks
Refrigerant level and thermostat calibration
Water heater efficiency checks
At RJ's Heating, Cooling & Water Heaters, we are:
As a family-owned HVAC company with over 20 years of experience, we proudly serve Barrington and Northwest Chicago. As an Armstrong Pro and Aprilaire Partner, we deliver trusted, high-quality comfort solutions.
We offer 24/7 emergency service for HVAC and water heaters, upfront pricing with no surprises, and highly rated craftsmanship trusted by home and businessowners throughout the region.
We proudly install and service trusted brands like Armstrong, Ducane, MagicPak, Daikin, Burnham, Weil-McLain, Aprilaire, Reme Halo, and State Water Heaters—ensuring lasting performance and comfort you can rely on.
Yes. RJ's Heating, Cooling & Water Heaters provides 24-hour emergency service in Mount Prospect. Whether your furnace shuts down in freezing temperatures or your AC fails during a summer heatwave, our technicians are available any time, day or night, to restore comfort.
We work with a wide range of trusted brands, including Armstrong, Ducane, Daikin, Burnham, Weil-McLain, MagicPak, and State. From central air and ducted heat pumps to boilers and water heaters, we service all makes and models.
Many older AC systems use R-410A, which is being phased out. New models use more environmentally friendly refrigerants like R-454B, which are harder to retrofit into older systems. If your system needs refrigerant in the future, costs may rise. We help Mount Prospect homeowners plan ahead with system inspections and future-ready upgrades.
We install Aprilaire air cleaners, UV lights, humidifiers, and dehumidifiers to improve the air in your home. These systems reduce allergens, kill airborne pathogens, and maintain balanced humidity levels—ideal for households with allergies or asthma.
Absolutely. We install Daikin mini-split systems for ductless climate control. These are perfect for older Mount Prospect homes or additions where ductwork isn't practical. They offer zone-specific comfort and energy efficiency.
Yes. RJ's installs, maintains, and repairs Burnham and Weil-McLain boilers for both residential and light commercial clients in Mount Prospect. Whether it's steam or hot water, we've got you covered.
We do. Our team installs both tank and tankless water heaters from State, and we also provide repair, maintenance, and replacement services. Whether you're upgrading for efficiency or need urgent service, we can help.
We recommend scheduling maintenance twice a year—in the spring for your cooling system and in the fall for heating. This keeps your HVAC system running efficiently, helps prevent breakdowns, and may lower your utility bills.
Comfort Club members receive seasonal tune-ups, priority service, no diagnostic fees during business hours, and discounts on parts and labor. It's the best way to keep your system efficient and avoid costly repairs.
Yes. RJ's provides light commercial HVAC services, including rooftop unit installation and maintenance, boiler service, and regular maintenance contracts for retail, office, and multifamily properties.
Yes! We offer financing through Service Finance, which allows Mount Prospect homeowners to break large HVAC expenses into affordable monthly payments. Applications are quick, and approvals are often same-day.
With over 20 years of experience, RJ's is family-owned, certified, and trusted locally. We combine professional workmanship with honest pricing and fast, courteous service. Mount Prospect residents choose us for our reputation, responsiveness, and dedication to comfort.
Check out our latest coupons and special offers to get quality HVAC service at a great price.
When it comes to dependable heating, cooling, and water heater services in Mount Prospect, IL, homeowners and businesses alike choose RJ's Heating, Cooling & Water Heaters. With over two decades of local experience, we've earned a reputation for reliable service, honest pricing, and exceptional craftsmanship backed by the industry's most trusted brands.
Our certified technicians deliver expert solutions tailored to the unique needs of homes and commercial properties in Mount Prospect. Whether you need fast AC repair, energy-efficient furnace replacement, or a custom boiler system, RJ's is equipped with the knowledge, tools, and dedication to get the job done right. We install and service Armstrong, Ducane, Burnham, Weil-McLain, MagicPak, Daikin, and State systems—ensuring optimal performance and long-term peace of mind.
Beyond installation and repair, RJ's offers proactive system care through our Comfort Club Maintenance Plan, helping you avoid costly breakdowns and enjoy peak performance season after season. We also provide in-house ductwork fabrication, indoor air quality upgrades with Aprilaire systems, and mini-split solutions for older homes or zoning needs.
Worried about cost? Don't be. Our flexible financing options through Service Finance make it easy to invest in your home's comfort now and pay over time with low monthly payments and promotional rates (for qualified customers). Whether you're upgrading an aging HVAC system or replacing a water heater, you won't have to wait to get the quality service you deserve.
From furnace emergencies on cold winter nights to cooling system upgrades in the peak of summer, RJ's delivers the fast, responsive service Mount Prospect residents rely on. Our team is here 24/7, offering emergency repairs, friendly support, and professional guidance to help you make informed decisions for your home or business.
Let's get started. Contact RJ's Heating, Cooling & Water Heaters today to schedule your HVAC service in Mount Prospect, IL. Discover the difference that comes from working with a locally trusted, family-owned team committed to your comfort, safety, and satisfaction.
872-274-4502 Schedule Today
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