HVAC Repairs

HVAC Repairs in Chelmsford

Reliable Heating & Cooling Repairs in Bedford, Concord, Westford & Surrounding Areas

Your HVAC system works hard year-round, but when it breaks down, it can leave you uncomfortable and frustrated. Whether your AC stops cooling in the summer or your furnace won’t start in the winter, you need a team that responds quickly and gets the job done right.

Since 1993 DiBacco Plumbing, Heating and Cooling has been the go-to team providing expert HVAC repairs to restore comfort to your home. Our skilled technicians diagnose issues accurately and offer honest solutions to keep your system running efficiently. Whether the issue is with your furnace, air conditioner, or heat pump, our skilled technicians are ready to tackle the problem and keep your home comfortable year-round.

Call (978) 961-4865 or contact us online for fast, reliable HVAC repairs in Chelmsford and the surrounding area. We offer free estimates and same-day service!

Signs Your HVAC System Needs Repairs

Your heating and cooling system is running non-stop, especially during peak seasons. With all that wear and tear, it’s likely that you’ll experience issues from time to time. Spotting signs of trouble early can save you time, money, and worry down the road in the form of costly repairs or full system replacements.

Some common signs that your HVAC system may need professional attention:

Weak or inconsistent airflow – If some rooms feel much warmer or cooler than others, your system may have a clogged filter, duct issues, or a failing blower motor.
Unusual noises – Banging, rattling, or screeching sounds could mean loose parts, motor problems, or issues with the compressor.
Frequent cycling – If your HVAC system turns on and off too often, it could be struggling to maintain the right temperature due to a faulty thermostat or an oversized unit.
Higher energy bills – A sudden spike in your energy bill may indicate your system is working harder than it should due to a malfunction.
Unpleasant odors – Musty smells could be a sign of mold in your ducts, while burning odors may indicate an electrical issue.
Inconsistent temperatures – If your system isn’t keeping up with your thermostat settings, it may need repairs or maintenance.

If you’ve noticed any of these issues, don’t wait for your HVAC system to break down completely—call DiBacco Plumbing, Heating and Cooling to diagnose and fix the problem.

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Common HVAC Repairs We Handle

No matter what’s wrong with your heating or cooling system, we’ve seen it before and know how to fix it. Our skilled technicians work on all makes and models, providing thorough repairs to restore comfort to your home.

Some of the most common issues we resolve include:

Refrigerant leaks – Low refrigerant levels can cause your AC to struggle to cool your home. We’ll locate leaks and recharge your system.
Blower motor malfunctions – If your system isn’t pushing enough air, the blower motor may need repair or replacement.
Clogged or dirty filters – A dirty filter can cause airflow restrictions and strain your HVAC system. We’ll replace it for optimal performance.
Faulty thermostats – If your thermostat isn’t accurately reading temperatures, it can throw off your entire system’s performance.
Capacitor or relay failures – These electrical components help start and run your system. When they fail, your HVAC unit may not turn on at all.
Frozen evaporator coils – A frozen coil can lead to a complete system shutdown. We’ll identify the cause and get your AC running again.
Pilot light or ignition issues – If your furnace won’t ignite, it could be due to a faulty igniter, thermocouple, or sensor problem.

We take the time to find the root cause of the issue rather than just offering a quick fix. Our goal is to keep your HVAC system running smoothly, so you can enjoy reliable comfort without unexpected breakdowns. If you’re experiencing any of these problems, our team is ready to help!

Why Choose DiBacco Plumbing, Heating and Cooling?

Insured for Your Peace of Mind
We make it easy for you to have confidence in the team you call.
Contact Us for a Free Estimate
We make it easy to get started with a completely free quote.
Ask About Our Warranty

We back our services with a warranty for your peace of mind.
Affordable Financing Options

Our financing options support you however you'd like to pay.

Should You Repair or Replace Your HVAC System?

One of the biggest concerns homeowners have when their HVAC system breaks down is whether to repair or replace it. While repairs can extend the life of your system, there comes a point where replacement is the better investment. Here are some factors to consider:

Age of the system – If your HVAC unit is more than 10–15 years old and frequently needs repairs, replacing it may be more cost-effective.
Cost of repairs – If a repair costs more than half the price of a new system, it’s usually a better choice to replace the unit.
Energy efficiency – Newer HVAC models are significantly more efficient, which can save you money on energy bills.
Overall performance – If your system struggles to keep your home comfortable despite repairs, upgrading to a newer model might be the best solution.

At DiBacco Plumbing, Heating and Cooling, we’ll always provide honest advice about whether a repair or replacement is right for you. We never push unnecessary services—our goal is to keep your home comfortable in the most efficient way possible.

Get Your HVAC System Back on Track

No matter what’s wrong with your HVAC system, you can count on DiBacco Plumbing, Heating and Cooling for expert repairs, fair pricing, and professional service. Our skilled team is ready to restore comfort to your home with quality workmanship and honest solutions.

Call us at (978) 961-4865 today or contact us online to experience professional HVAC repairs in Chelmsford that deliver lasting results! Financing and payment plans are available!

Our Reviews

Hear From Your Friends & Neighbors

“Prompt and Efficient”
“Excellent service! They were very patient and very helpful in working with getting my condominium association to approve it.. They completed the project promptly on the date promised. I trust them and will be delighted to do business with them again.”

- George B.
“Exceptional Customer Service”
“These guys are exceptional at what they do. They fixed my water fixtures promptly. They are the hardest blue collar workers I’ve seen. Their motto is hard work, honesty, and transparency. Great prices, efficient, and passion is their motto.”

- Noah M.
“Great Work”
“I felt they were very honest and was comfortable with them being in my home when I couldn’t be there... I will definitely see them again in the future! Great guys, great work! Thank you!”

- LouAnne D.
“Wonderful Service”
“Couldn’t recommend them enough. We are so happy to go into our first winter in our home confident in our heat!”

- Abigail H.
“Extremely Responsive”
“I always know I am going to get an honest assessment, a quick and expert solution and a fair price done with smile and great conversation. Thank you so much!”

- Michele L.
“Highly Recommend”
“DiBacco Plumbing and Heating installed high efficiency heat pump units to my home. His team were very professional and neat/clean. I was very satisfied with their work. I would highly recommend to anyone! Thanks”

- Mike P.
“Fantastic Company”
“DiBacco Plumbing is a fantastic company to deal with! Very reasonable pricing, clean and reliable, no long waits to get your project done. Do yourself a favor, contact DiBacco for all of your plumbing, heating and cooling needs.”

- Dean A.
“Outstanding Job”
“They came in and took care of the whole removal and installation in a day. The whole process was well managed, with the personal touch that you get from a family run business.. I would not hesitate to recommend DiBacco Plumbing to anybody!”

- M. A.

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By submitting, you agree to receive text messages from DiBacco Plumbing, Heating and Cooling at the number provided, including those related to your inquiry, follow-ups, and review requests, via automated technology. Consent is not a condition of purchase. Msg & data rates may apply. Msg frequency may vary. Reply STOP to cancel or HELP for assistance. Acceptable Use Policy