Protect your investment with expert HVAC and boiler maintenance from 3J heating & Cooling. Family-owned, trusted service to keep your system running smoothly year-round. HVAC Maintenance & Tune-Ups in Southeast Michigan Protect your system, improve efficiency, and avoid breakdowns with routine maintenance. Routine maintenance is one of the most important things you can do to keep your heating and cooling system running properly. At 3J Heating & Cooling, we provide thorough tune-ups to catch small issues before they turn into costly repairs. We take pride in doing things the right way—checking every detail to make sure your system is safe, efficient, and ready for the season ahead. Request Service Call Now Heating Tune-Ups AC Tune-Ups What's Included Heating System Tune-Ups heatingtuneup Before the cold sets in, we inspect and service your furnace or boiler to ensure it’s running safely and efficiently when you need it most. Air Conditioning Tune-Ups actuneup Get ahead of summer breakdowns with a full system check and cleaning to keep your AC running strong during the hottest months. What's Included In A Tune-Up? included • Full system inspection • Cleaning of key components • Checking electrical connections • Testing system performance • Identifying potential issues Why Maintenance Matters • Prevents unexpected breakdowns • Improves system efficiency • Extends equipment lifespan • Reduces repair costs • Keeps your home comfortable year-round Why Choose 3J Heating & Cooling? • Thorough, detail-focused service • Honest recommendations • Local, family-owned business • Reliable scheduling and service Schedule Your Maintenance Service Stay ahead of breakdowns and keep your system running at its best. Request Service Call Now

Need HVAC repair in Adrian, MI? 3J Heating and Cooling offers fast, reliable heating, cooling, and boiler services. Serving Lenawee, Jackson, and Washtenaw County. Honest service done right—call today! Reliable Heating & Cooling You Can Trust. Family-owned & operated. Fast, honest HVAC service across Lenawee County - From boilers to AC. Quality Is Our Priority - Every Job, Every Time. Call Now: 517-312-5679 Get Same Day Service ✔ Boilers • Furnaces • AC ✔ Licensed & Insured ✔ Proudly Serving Lenawee, Jackson & Washtenaw County 24/7 Emergency HVAC Services Available Call 517-312-5679 No Heat? No AC? - We've Got You Covered. OUR HVAC SERVICES No Heat? Furnace or Boiler not working? We diagnose a nd fix heating issues FAST Heat Repair & Install > Button Boiler Specialsts Leaks, no hot water, or pressure issues- Our #1 Specialty Boiler Repair & Service > Button No AC? AC Repair & Install > Warm air, poor airflow, or system not turning on? We'll get it running Button Prevent Breakdowns Seasonal tune-ups to keep your system running efficiently Schedule Tune-up > Button EMERGENCY Service No heat or AC? We respond fast when you need help most CALL NOW Button Water Heater Service No hot water? Leaking tank? Strange noise? Fast solutions when you need it most View Water Heater Services > Button Explore Tankless Services > Tankless Water Heater Endless hot water with high-efficiency tankless systems. Installation, repair, and maintenance available. Button Flexible Financing We’re proud to offer financing options through Michigan Saves Lets Upgrade Your System > Button Not sure whats wrong? Call us - We'll figure it out Request Service > To play, press and hold the enter key. To stop, release the enter key. What People are Saying Joshua W. As another HVAC technician up north in Michigan, i have seen jakes work on his YouTube Channel! I Highly recommend him to do and type of HVAC work you may need! Good luck Jake! Raymond R. Watched his videos and he has good experience and remains positive. Two things you want in an HVAC guy, for sure! Add a rating Our Partners

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Explore our services and get in touch Our Services 01. Boiler Installation Experience a new level of home comfort with our professional boiler installation services. Our expert technicians ensure safe, efficient, and reliable systems tailored to your home's needs and budget. We handle everything from initial assessment to final testing for optimal performance. Show more 02. Annual Boiler Maintenance Protect your investment and ensure uninterrupted heating with our comprehensive annual boiler maintenance. Our service includes thorough inspections, cleaning, and tuning to maximize efficiency, prevent breakdowns, and ensure safety throughout the colder months. Schedule yours to guarantee peak performance and peace of mind. Show more 03. HVAC System Repair When your heating or cooling system falters, trust 3J Heating and Cooling for prompt and reliable repairs. Our experienced technicians diagnose and fix a wide range of issues, restoring your home's comfort quickly. We prioritize quality workmanship and durable solutions to get your system back online. Show more