HVAC reviews in Berkeley, Illinois

Fast, reliable, and professional service that exceeded expectations.

They're very quick to respond and answer the phone, doing a great job.

They showed up promptly and their work was done efficiently. Their professionalism is top-notch; I suggest giving them a shot.

Brian provided top-notch service with exceptional knowledge and willingness to detail his expertise. He's a standout professional who exceeded my expectations.

Brian and Marco deliver high-quality work consistently. They're efficient, diligent, and dependable. I've never been disappointed with their services - they truly exceed expectations and I highly endorse them.

Worked with Brian, got top-notch service - fast and reliable. He kept me in the loop every step of the way. Highly suggest him for any tasks they handle.

Brain and Marco were top-notch. They provided excellent service with clear explanations and prompt responses to all queries. Their flexible scheduling and willingness to accommodate our needs made the experience seamless. Highly recommended.

I'm switching to this company for all my heating and cooling work. They showed up fast and Marco did the job swiftly, explaining what he was doing as he went along.

We were thoroughly impressed with this company's service. Brian stands out as a standout, addressing all our concerns in detail and arriving on time. The work was immaculate, and the team was friendly and efficient. The price is also incredibly reasonable. We've found a reliable partner for our needs, and we'll be calling them again soon.

Hennessey Heating & Cooling operates with integrity, delivering high-quality air conditioning installations that are well worth the investment. Their equipment is top-notch and exceeds expectations.

Brian is knowledgeable and efficient, but he's stuck with me on this old Sears AC unit that needs to be replaced every year. His transition to his own company didn't change my experience - he's still great. Although I'm waiting for a new unit, I'll be back to him at HHC Heating and Cooling when it's time for an upgrade.

We hired Hennessey Heating & Cooling to swap our old furnace for a new, efficient one and AC unit. The rep gave us options on features and efficiency and broke down the pros and cons of upgrading from standard to high-efficiency. He was straightforward and easy to converse with throughout the process.

I called Hennessy to inquire about their help with installing a gas valve before my new stove arrived. They did an excellent job, arriving promptly and efficiently. Marko was professional and explained the necessary work clearly. I'm impressed with their service and will definitely use them again for any future HVAC needs; I highly recommend them.

I was left shivering at home with a freezing house, only to have it warm up twice in two days courtesy of Brian. However, my humidifier consistently blew fuses, forcing Brian to return and fix the issue for free the second time around - all while providing top-notch customer service that's earned his full vote from me.

Hennessey did an excellent installation of our mini split system. The work was thoroughly done, paying close attention to maintaining its original appearance both indoors and out, preserving our home's overall look and feel. Highly recommended for similar needs.

The service we received was reliable over the long term. After several years, everything still functions as expected. The installation proved efficient, leading to a noticeable reduction in energy consumption. The unit is incredibly quiet, making it nearly imperceptible when operating - a stark contrast to our neighbor's system. Brian has consistently demonstrated prompt responsiveness and followed up with necessary maintenance, ensuring our system remains running smoothly.

Brian Hennessey is top-notch. We've had him over multiple times and he's consistently reliable, methodical, and honest. He's the only one we'd consider for our HVAC work - can't recommend him enough.

We're extremely grateful for the outstanding service provided by Brian and Kevin. Our home was left without heat on a bitterly cold Saturday morning, with temperatures soaring to 30 degrees. Thankfully, they sprang into action promptly. Their speed, professionalism, and reassuring demeanor made a difficult situation manageable. They went above and beyond to locate the necessary part, even working on a holiday weekend. We highly endorse Brian for any heating or cooling needs.

If you've got split heads with mold buildup, these guys are your best bet. They bring their own specialized bag/shroud and pressure washing system to get into tight spaces behind the fan and coils. Their equipment worked seamlessly even on unique systems like Daikin Emura units (which aren't exactly common in this area). They also took off the covers on each head unit, gave them a good scrub outside where they could, and when everything was back together, you wouldn't have known anything had been done - except for a fresh lemon scent instead of mold. After completing the work, Brian ensured all eight heads and my two heat pumps were functioning properly. He got it all done in under a day, which is impressive considering how much work that entails. Thanks to Brian and his crew for getting us summer-ready!

Brian and his team consistently deliver exceptional service - always arriving promptly and completing tasks efficiently. We've utilized their services for routine maintenance and major repairs alike, including a recent replacement of our heating and cooling units. The advice and consultation provided by Brian were valuable in making the decision, and we're thrilled with the outcome: a well-functioning home with new appliances that keep it comfortably cooled and heated.

Brian was great - super professional and made sure I got the lowdown on what he was doing. I picked the Amana S Series, which is exactly what I needed: quiet and unobtrusive since it's right next to my deck. The app is a breeze to use and this unit really delivers on energy efficiency, saving me cash in the long run. Plus, it looks sleek as can be! I've used this company before at another house and wouldn't hesitate to recommend them for any HVAC work - they get the job done right.