Stay Warm in Winter,
Cool All Summer
Professional heating and cooling solutions for homes across Massachusetts. Expert installations, reliable repairs, and preventive maintenance you can trust.
Why Massachusetts Homeowners Choose Us
Licensed & Certified Technicians
Every installer on our team holds proper EPA certification and completes ongoing training on the latest HVAC technology.
Same-Day Service
We understand that a broken furnace in January or AC in July can't wait. That's why we offer same-day appointments across the region.
Upfront Pricing
No hidden fees, no surprise charges. Get a detailed quote before we start any work. We also offer financing options for major installations.
5-Year Labor Warranty
We stand behind our work with one of the strongest warranties in the industry. Your comfort and peace of mind are our priorities.
Complete Climate Solutions
Furnace Installation & Repair
From routine maintenance to complete system replacements. We work with all major brands and fuel types including natural gas, propane, and oil.
Central Air Conditioning
Beat the New England summer heat with our energy-efficient cooling solutions. Split systems, heat pumps, and ductless mini-splits available.
Heat Pump Systems
Year-round comfort with one system. Heats in winter, cools in summer, and potentially cuts your energy bills by up to 30%.
Keeping Local Homes Comfortable Since 2008
At Dan Diprima Heating & Air Conditioning, we treat every home like it's our own. Based right here in Lunenburg, we understand the unique climate challenges our New England neighbors face.
Whether it's the humid summers in Fitchburg or the freezing January nights in Leominster, we've got the expertise to keep your family comfortable all year round. Our team lives and works in this community, so you know we'll be here when you need us.
Quality Installation Matters
A quality HVAC system only performs as well as its installation. That's why we never cut corners — proper sizing, precise ductwork, and thorough testing before we leave your home.
Meet Our TeamWhat Our Clients Say
Dan Diprima's team saved us from a frozen weekend. Our furnace died on Saturday night — they had a new system installed by Monday morning. Professional, clean, and reasonably priced.
Replaced our old oil furnace with a high-efficiency heat pump. The crew worked efficiently, cleaned up perfectly, and helped us qualify for state rebates. Highly recommend!
We've used their maintenance plan for three years now. Annual tune-ups keep our system running smoothly, and any minor issues are caught early. Worth every penny.
Request a Free Quote
Contact Information
Our Address
164 West Street, Lunenburg, MA, 01462
Phone Number
Email Address
Business Hours
Monday - Friday: 7:00 AM - 6:00 PM
Saturday: 8:00 AM - 4:00 PM
Sunday: Emergency Only
Ready to Upgrade Your Home Comfort?
Schedule your free consultation today. Our experts will assess your needs and recommend the perfect solution for your home and budget.
Call (978) 582-4917