HVAC Contractor in Fairhaven, MA

Your System Works When You Need It

Fast response, honest repairs, and heating systems that actually keep your family comfortable through every season.

We Leave Our Customers Smiling

Ready for 5-Star Level Service?

Fairhaven Heating and Cooling Services

Comfort You Can Count On

When your HVAC system works right, you don’t think about it. You’re not adjusting the thermostat every hour or wondering if the heat will kick on during the next cold snap.

You’re not dealing with rooms that are too hot in summer or too cold in winter. Your energy bills stay predictable instead of spiking every month because your system is running efficiently.

That’s what proper HVAC service gets you. Systems that work when you need them, repairs that actually fix the problem, and maintenance that prevents those 2 AM emergency calls when it’s 15 degrees outside and your heat just stopped working.

Local HVAC Company Fairhaven

We Know Bristol County Weather

Dempsey Energy has been keeping Fairhaven homes comfortable through New England’s unpredictable weather. We serve over 12,000 customers throughout Bristol County with both HVAC and plumbing services.

What sets us apart is our focus on actually solving problems instead of just making temporary fixes. We use professional customer management systems to track service history and follow up with customers, ensuring nothing falls through the cracks.

Our Dempsey Comfort Club gives customers priority scheduling and maintenance benefits, which matters when you need service during peak seasons when other contractors are booked solid.

HVAC Repair Process Fairhaven

Straightforward Service, No Surprises

When you call, you get a real person who can schedule your service appointment. No phone trees or callbacks that never happen.

Our technician arrives on time and starts with a complete diagnostic to figure out what’s actually wrong with your system. We explain what we found in plain English and give you options for fixing it before any work begins.

Once you approve the repair, we get it done right the first time using quality parts. We test everything to make sure it’s working properly and clean up after ourselves. You get a clear explanation of what was done and recommendations for preventing future problems.

Ready to get started?

Explore More Services

About Dempsey Energy

Get a Free Consultation

Complete HVAC Services Fairhaven

Everything Your System Needs

Dempsey Energy handles the full range of HVAC services that Fairhaven homeowners actually need. Emergency repairs when your system breaks down, regular maintenance to prevent those breakdowns, and complete system installations when it’s time to replace old equipment.

We work on all types of heating systems common in Bristol County homes, from gas furnaces to heat pumps to boilers. Air conditioning installation and repair, ductwork issues, and indoor air quality problems all get handled by the same team.

The key is having technicians who understand how New England weather affects your HVAC system and what problems to watch for before they become expensive emergencies.

How quickly can you respond to emergency HVAC repairs in Fairhaven?

Emergency response times depend on the season and current service demand, but we prioritize urgent calls, especially during extreme weather conditions. Dempsey Comfort Club members get priority scheduling, which can make a significant difference during peak times like the first cold snap of winter when everyone’s heating system is being tested. We maintain service availability throughout Bristol County and use professional scheduling systems to dispatch the closest available technician to your location.

What should I do if my heating system isn't turning on?

First, check your thermostat settings and make sure it’s set to heat mode with the temperature set higher than the current room temperature. Check your circuit breaker to ensure the HVAC system hasn’t tripped a breaker. Look at your air filter – a completely clogged filter can cause some systems to shut down as a safety measure. If these basic checks don’t solve the problem, you likely have a component failure that needs professional diagnosis. Don’t attempt to force the system to run or try to repair electrical components yourself.

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

This usually indicates a problem with your air conditioning system while the fan continues to run. Common causes include refrigerant leaks, failed compressor, broken reversing valve on heat pumps, or electrical issues preventing the cooling cycle from starting. Sometimes it’s as simple as incorrect thermostat settings or a tripped breaker to the outdoor unit. However, refrigerant and electrical problems require professional repair. Running the system when it’s not cooling properly can cause additional damage and higher repair costs.

How often should I schedule HVAC maintenance in Fairhaven?

Most HVAC systems in Fairhaven should be serviced twice per year – once before the heating season and once before cooling season. New England’s climate puts significant demands on both heating and cooling systems, so regular maintenance helps catch problems before they cause breakdowns during extreme weather. During maintenance visits, our technicians clean components, check refrigerant levels, test safety controls, and identify parts that are wearing out. This preventive approach typically saves money compared to waiting for emergency repairs.

What's included in your HVAC service calls?

Service calls start with complete system diagnostics to identify the actual problem, not just the symptoms you’re experiencing. Our technician will test all major components, check electrical connections, measure system performance, and inspect safety controls. You’ll get a clear explanation of what’s wrong and your options for fixing it before any repair work begins. The service includes the repair work, testing to ensure everything operates correctly, and recommendations for preventing similar problems. All work areas are cleaned up before our technician leaves.

Do you install new HVAC systems in older Fairhaven homes?

Yes, we regularly install new HVAC systems in older Bristol County homes, including properties with unique challenges like older electrical systems, unusual layouts, or space constraints. Our installation process starts with evaluating your home’s specific requirements, including proper sizing calculations, ductwork assessment, and electrical needs. Many older homes benefit significantly from modern, energy-efficient systems that provide better comfort and lower operating costs. We handle any necessary permits and ensure installations meet current codes and manufacturer specifications.

Local Resources

Fairhaven, MA is located in Bristol County in Massachusetts State