HVAC Contractor in Avon, MA

Your System Fixed Right the First Time

Fast response when your heating or cooling fails, plus honest diagnostics that save you money long-term.

We Leave Our Customers Smiling

Ready for 5-Star Level Service?

Professional HVAC Services Avon

Comfortable Home, Lower Energy Bills

Your HVAC system should work when you need it most. No more sweating through summer nights because your AC gave out, or shivering in January when your furnace decides to quit.

When we finish the job, you get consistent temperatures in every room. Your monthly energy bills drop because everything runs efficiently. Most importantly, you stop worrying about your system breaking down at the worst possible moment.

We’ve seen what happens when homeowners get stuck with contractors who cut corners or oversell unnecessary equipment. You end up paying twice – once for the bad work, then again to fix it properly. That’s why our approach focuses on getting it right the first time, whether it’s a simple repair or a complete system installation.

Trusted HVAC Company Norfolk County

Built on 12,000+ Happy Customers

We’ve been keeping Norfolk County homes comfortable through every season. We’ve built our reputation on straight talk and reliable work – no games, no surprises, no pressure tactics.

Our customer base speaks for itself. Over 12,000 homeowners trust us with their heating, cooling, and plumbing needs. We’ve earned that trust by showing up when we say we will, diagnosing problems honestly, and standing behind our work.

The Dempsey Comfort Club gives our customers priority scheduling and ongoing maintenance to prevent problems before they start. It’s part of how we’ve moved beyond the typical “emergency-only” relationship most people have with their HVAC contractor.

HVAC Repair Process Avon

Simple Process, No Surprises

When you call, we schedule your appointment quickly – often same-day for urgent issues. Our technician arrives on time and starts with a thorough diagnostic to identify exactly what’s wrong with your system.

You get a clear explanation of the problem and your options before any work begins. We break down what needs to be fixed immediately versus what can wait, so you can make informed decisions about your budget and priorities.

Once you approve the work, we complete the repair or installation efficiently. Before we leave, we test everything thoroughly and walk you through what we did. You’ll know your system is running properly and understand how to keep it that way.

Ready to get started?

Explore More Services

About Dempsey Energy

Get a Free Consultation

Complete HVAC Services Massachusetts

Everything Your System Needs

We handle the full range of heating and cooling needs for Avon area homes. Emergency repairs when your system breaks down, preventive maintenance to avoid problems, and complete installations when it’s time to replace old equipment.

Our technicians understand how New England weather affects HVAC systems. Freezing winters put extra strain on heating equipment, while humid summers demand reliable air conditioning. We size and install systems properly for local climate conditions, not just what’s cheapest or easiest.

Beyond basic repairs, we address indoor air quality issues that affect your family’s comfort and health. Poor ventilation, humidity problems, and dirty ductwork all impact how well your system works and how comfortable your home feels year-round.

How quickly can you respond to emergency HVAC repairs?

We offer same-day service for most emergency repairs, especially during extreme weather when heating or cooling failures create urgent situations. Our goal is to have a technician at your home within a few hours of your call. During peak seasons like mid-winter or summer heat waves, response times may extend slightly, but we prioritize emergency calls and communicate realistic timeframes upfront. We maintain emergency availability because we understand that HVAC failures don’t wait for convenient business hours.

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. Look at your air filter – a completely clogged filter can cause the system to shut down for safety. If these basic checks don’t solve the problem, call us rather than attempting further troubleshooting. Modern heating systems have safety features that shut them down when something’s wrong, and forcing them to run can cause expensive damage.

Why is my HVAC system blowing hot air when it should be cooling?

This usually indicates a problem with your air conditioning’s refrigerant system or a malfunctioning component. Low refrigerant levels, a failing compressor, or issues with the reversing valve (on heat pumps) can cause this problem. Sometimes it’s as simple as a thermostat setting issue, but more often it requires professional diagnosis. Don’t ignore this problem – continuing to run the system when it’s not cooling properly can damage expensive components and drive up your energy bills significantly.

How often should I schedule HVAC maintenance?

Annual maintenance is the minimum for most systems, but twice yearly is better – once before heating season and once before cooling season. Regular maintenance catches small problems before they become expensive repairs and keeps your system running efficiently. During maintenance visits, we clean components, check refrigerant levels, test safety controls, and identify parts that are wearing out. Dempsey Comfort Club members get priority scheduling for maintenance and repairs, plus reminders when service is due.

What's the typical lifespan of an HVAC system in Massachusetts?

Most heating and cooling systems last 15-20 years with proper maintenance, though New England’s climate extremes can affect longevity. Furnaces often outlast air conditioning units because they work harder during our cold winters. Signs it’s time to replace include frequent repairs, rising energy bills, uneven heating or cooling, and difficulty maintaining comfortable temperatures. We help homeowners evaluate whether repair or replacement makes more financial sense based on the system’s age, condition, and repair history.

Do you provide estimates before starting work?

Yes, we provide clear estimates before beginning any work beyond basic diagnostic fees. For repairs, we explain what’s wrong, what needs to be fixed, and what it will cost before touching your system. For installations, we provide detailed written estimates that break down equipment, labor, and any additional work needed. We believe in transparent pricing – no surprise charges or hidden fees after the work is complete. You’ll know exactly what you’re paying for and why it’s necessary.

Local Resources

Avon, MA is located in Norfolk County in Massachusetts State