HVAC Contractor in Quincy, MA

Your System Fixed Right, Fast

When your heating or cooling fails, you need an HVAC contractor who shows up and gets it working.

We Leave Our Customers Smiling

Ready for 5-Star Level Service?

Professional HVAC Services Quincy

Comfortable Home, Lower Bills, Zero Surprises

Your HVAC system should work quietly in the background while you focus on everything else. No more waking up to a cold house in January or sweating through summer nights because your AC quit.

When we’re done, your system runs efficiently and reliably. You’ll notice the difference in your monthly energy bills and the consistent comfort throughout your home.

We handle everything from emergency repairs to complete system replacements, plus ongoing maintenance that prevents most breakdowns before they happen. Our Dempsey Comfort Club members get priority scheduling and exclusive benefits that make HVAC ownership simpler and more affordable.

Trusted HVAC Company Quincy

We Know Quincy Homes Inside Out

Dempsey Energy has built relationships with over 12,000 customers throughout the Quincy area. We understand the unique challenges of heating and cooling homes in this region, from older colonial houses to modern condos.

Our team focuses on getting your system working properly without the high-pressure sales tactics you’ve probably experienced elsewhere. We use professional customer management systems to track your equipment history and maintenance schedules, so nothing falls through the cracks.

When you call us, you’re working with a local company that plans to be here for years to come. That’s why we focus on doing the job right the first time.

HVAC Repair Process Quincy

Simple Process, Professional Results

First, we listen to what’s happening with your system and schedule a convenient time for diagnosis. Our technician arrives with the tools and parts needed for most common repairs, so we can often fix the problem on the same visit.

We’ll explain what we found, what needs to be done, and give you a clear estimate before starting any work. No surprises, no pressure to buy things you don’t need.

After the repair or installation, we test everything thoroughly and show you how to maintain your system for optimal performance. We also add your service details to our tracking system so we can remind you about future maintenance and keep your warranty information on file.

Ready to get started?

Explore More Services

About Dempsey Energy

Get a Free Consultation

Complete HVAC Solutions Quincy

Everything Your System Needs

We handle heating system repairs, air conditioning service, complete HVAC installations, and emergency calls. Whether your system is blowing hot air when it should be cold, or your heating won’t turn on during a cold snap, we have the experience to diagnose and fix the problem.

Our service includes thorough system diagnostics, not just quick fixes that fail again next month. We work on all major brands and can recommend energy-efficient upgrades that actually save money on your utility bills.

Quincy homeowners deal with everything from old radiator systems to modern heat pumps. We’ve seen it all and know how to work with your existing setup or design a better solution that fits your home and budget.

How quickly can you respond to HVAC emergencies in Quincy?

We prioritize emergency calls, especially during extreme weather when heating or cooling failures create safety concerns. Most emergency calls receive same-day service, and we maintain emergency hours for urgent situations. Our technicians carry common repair parts and diagnostic equipment to resolve many problems on the first visit. For Dempsey Comfort Club members, we offer priority scheduling that gets you to the front of the line during busy periods.

What should I do if my heating system won't turn on?

First, check your thermostat settings and replace the batteries if needed. Verify that your circuit breaker hasn’t tripped and that your furnace switch is in the “on” position. Check if your air filter is extremely dirty, as this can cause safety shutoffs. If these basic steps don’t solve the problem, call us for professional diagnosis. Heating system failures can involve gas lines, electrical components, or mechanical issues that require professional expertise to repair safely.

Why is my HVAC system blowing hot air instead of cold?

This usually indicates a problem with your air conditioning system while the fan continues running. Common causes include refrigerant leaks, failed compressor components, frozen evaporator coils, or electrical issues. Sometimes it’s as simple as a dirty air filter restricting airflow, but often it requires professional diagnosis and repair. We can quickly identify whether you need a simple repair or if major components have failed, and explain your options clearly.

How often should I schedule HVAC maintenance in Quincy?

Most systems benefit from professional maintenance twice per year – once before the heating season and once before cooling season. Quincy’s climate puts significant demands on HVAC systems, from frigid winters to humid summers. Regular maintenance catches small problems before they become expensive repairs and keeps your system running efficiently. Our Dempsey Comfort Club includes scheduled maintenance reminders and priority service, making it easy to stay on top of system care.

What's included in your HVAC service calls?

Every service call includes thorough system diagnosis, not just a quick look at obvious problems. We test system performance, check electrical connections, inspect safety controls, and identify potential issues before they cause breakdowns. You’ll receive a clear explanation of what we found and honest recommendations for repairs or improvements. We carry common parts on our trucks and can complete most repairs immediately. All work includes our service guarantee and gets logged in our customer management system for future reference.

Do you work on older HVAC systems in Quincy's historic homes?

Absolutely. Many Quincy homes have older heating systems, from radiators to aging furnaces, and we have extensive experience working with these systems. We can repair existing equipment, retrofit modern components for better efficiency, or design complete replacement systems that work with your home’s existing infrastructure. Our team understands the unique challenges of older homes and can recommend solutions that improve comfort and efficiency without requiring major structural changes.

Local Resources

Quincy, MA is located in Norfolk County in Massachusetts State