HVAC, Electrical, and Home Performance Services in Manlius, NY
Transform your home’s comfort, safety, and efficiency with John Betlem Heating & Cooling. We’re your reliable partner for expert HVAC, electrical, and home performance solutions in the greater Manlius, NY area. From installing state-of-the-art energy-efficient systems to handling emergency repairs and providing proactive maintenance that keeps things running smoothly, we’re here to make sure your home is prepared for every season.
We know how frustrating it is to deal with constant system breakdowns, rooms that are never the right temperature, rising energy bills that don’t make sense, or indoor air that leaves your family sneezing and coughing. Add in the stress of unreliable contractors or rushed service that never quite fixes the issue, and it’s enough to make anyone feel overwhelmed. That’s why at John Betlem, we take a different approach.
Our team listens first, then designs personalized solutions that fit your space, lifestyle, and budget. Whether you’re worried your outdated furnace won’t survive another winter, tired of cycling between hot and cold spots, or finally ready to upgrade your old electrical panel for safety and performance, you can count on us to deliver dependable, lasting results.
Proudly we serve all our neighbors in Manlius, from Eagle Village Road to Three Falls Woods and everywhere in between. Contact us today to schedule service or request a consultation.


Learn more about our home comfort services offered in Manlius, NY.
Heating
From installing high-efficiency Carrier® systems to conducting tune-ups and handling emergency repairs, trust us to ensure your home remains cozy and energy-efficient during Manlius winters.
Air Conditioning
Count on us for dependable cooling solutions featuring top-tier Carrier® and Mitsubishi® products. Our meticulous service and repair options are designed to keep your AC system running smoothly.
Electrical
Our certified electricians offer a full spectrum of services, from safety inspections to EV charger installations. We prioritize safety, efficiency, and adherence to all codes.
Heat Pumps
Rely on our specialized technicians for expert heat pump services tailored to your specific climate control needs.
Ductless Mini-Splits
Experience enhanced comfort and energy savings with our advanced ductless mini-split solutions.
Indoor Air Quality
Breathe easier with our modern indoor air quality products, including air purifiers and ventilators that purify and refresh your home's air.
Water Heaters
Choose from a variety of high-efficiency water heater models and benefit from our comprehensive services.
Furnaces
Count on us for safe and reliable furnace services to keep your home warm throughout the winter months.
Boilers
Our skilled technicians provide prompt boiler solutions to ensure optimal performance and efficiency.
Oil to Gas Conversions
Upgrade your home's energy efficiency with our seamless oil to gas conversion services.
Save up to $16,200 on insulation, heating and home performance upgrades with John Betlem
Take advantage of current New York State programs aimed at enhancing home comfort and reducing energy costs for Manlius homeowners. Let us guide you through these opportunities to maximize your savings.

Get free and half-price upgrades to help pay for:
- Insulation & Air Sealing
- Home Heating
- Water Heaters
- LED Light Bulbs
- Advanced Power Strips
We can handle all your HVAC and electrical needs in Manlius, NY.
Ready to elevate your home's performance and peace of mind? Call John Betlem Heating & Cooling at 585.326.4767 today to learn more about our trusted services in Manlius, NY and surrounding areas.