HVAC reviews in Chicago, Illinois

This technician was very professional from start to finish. He arrived right on schedule, quickly identified the issue with my heating system, and provided a straightforward diagnosis. Unlike some others in the business, he didn't try to sell me anything extra. My heat is working more efficiently now, and I appreciate his commitment to future support.

Greg exceeded expectations by showing up promptly and providing excellent support when needed - I'd enthusiastically endorse him.

Gergory was top-notch, finishing the job quickly and efficiently. The company has come out to our place a staggering number of times in the first year alone - an impressive display of responsiveness. Initially, we experienced a 40-day heat outage, which was eventually resolved after just two hours of work. Gergory's professionalism is appreciated, but let's be clear: Abt got the ductwork sizing wrong and that won't be forgotten.

Greg arrived on schedule after an easy online booking process. He recommended a maintenance part to extend the life of my aircon, which could lead to significant cost savings in the future. The unit's exterior is now clean and service-ready for the upcoming summer season. I'm confident in choosing Otter for future services.

Did a great job with the HVAC installation at our condo clubhouse. Gregory was knowledgeable and kept us informed throughout the process.

If you're fed up with being taken advantage of by subpar HVAC companies, Otter is a breath of fresh air. The other firms I've worked with botched my Nest setup, running it constantly due to faulty wiring. Initially, the AC installation company missed wrapping Freon coils, resulting in inefficient operation. Otter sent Greg to diagnose and repair the issue - he cleaned the system, rectified the wiring, and wrapped the coils properly. The energy savings will far outweigh the service call cost. I trust and admire their expertise and integrity. I highly recommend them to my fellow neighbors.

Otter Heating and Cooling sent a technician to inspect our AC system. The service guy was friendly and showed up promptly. He provided a straight-forward estimate of the work needed, which we appreciated. We're glad we chose them; they seem reliable and do quality work.

Thanks to Gregory, we're finally getting some relief from this sweltering heat. Our old system had given up the ghost, but he pinpointed the problem and fixed it in one go - no need for multiple visits. He was methodical and clear in his explanation, which was a nice change of pace. Plus, he was considerate of our neighbors and furry friend, showing some much-needed courtesy. We're grateful for Gregory's prompt service and would highly recommend Otter Heating & Cooling to anyone in need of reliable support.

As a real estate pro, I've dealt with several HVAC firms - they stood out from the rest.

I recently needed assistance with a faulty cooling system, and Otter HVAC exceeded all my expectations. The scheduling process was seamless, accommodating my hectic schedule without any hassle. When the technician arrived, Gregory, he demonstrated exceptional expertise, being both knowledgeable and courteous. His diagnosis and repair were efficient, restoring comfort to my home promptly. He also took the time to explain the issue and provide helpful tips for future maintenance. I'm thoroughly impressed with Otter HVAC's professionalism and would wholeheartedly recommend them to anyone in need of reliable heating and cooling services.

I'm extremely satisfied with Otter Heating and Cooling, which tackled a intricate ducting problem at my place in no time. The team is top-notch, providing clear explanations of their work and transparent pricing upfront.

I had a great experience with Otter Heating & Cooling, who thoroughly serviced my heating and cooling system. Their professionalism and friendliness made the whole process smooth and stress-free. What stood out was their exceptional attention to detail - they went above and beyond to ensure everything was just right before leaving. I'm extremely satisfied with the service and would highly recommend Otter Heating & Cooling to anyone needing HVAC work.

We had a fantastic experience with this company from start to finish. When our AC started acting up, they were prompt and came out quickly. The team spent the entire day swapping out our old system and furnace - it was impressive to see how efficiently and expertly they worked. What really impressed us was their thoughtful touch of sending a personalized thank you card after the job was done. It's clear that they genuinely care about their customers and take pride in their work. Their professionalism, reliability, and top-notch service make them my go-to for any future heating/cooling needs - highly recommended!

Greg from Otter Heating & Cooling is top-notch. He's warm, knowledgeable, and gets things right. His explanation was clear and concise, no upselling or hard sell. As a woman, I appreciated his friendly demeanor and felt at ease having him in my home. He's a reliable choice for a stress-free experience.

Greg and Jeffery are top-notch, providing excellent customer service. Their work exceeded expectations - I couldn't be more satisfied with Greg's performance. He was courteous, offering great suggestions. Notably, he suggested installing an air sanitizer in my HVAC system due to lingering litter box odors. My apartment quickly improved significantly, no longer smelling like a litter box. I highly recommend their services and will likely return for future heating and cooling needs.

Greg is top-notch - professional, thorough, and extremely knowledgeable about HVAC. He excels at routine maintenance, emergency repairs, and full system installations alike. He takes the time to break down complex issues into easy-to-understand terms, giving clients a clear understanding of their options and boosting confidence in the work. With expertise across all Chicago areas, he's a trustworthy choice regardless of where you are. I appreciate his business also caters to an LGBTQ-friendly crowd, providing a welcoming space for all clients - essential for me personally.

Greg did a good job, arrived on schedule and was reasonable about cost. He answered all my queries honestly.

Greg was courteous and expert. He thoroughly inspected and maintained our old AC unit, explaining our next steps clearly. We'd highly recommend Otter without hesitation.

I've had a fantastic experience with Otter Heating & Cooling, thanks in large part to Greg. He was extremely helpful, keeping me informed throughout the process, and went out of his way to address a problem with our old HVAC system that had been causing issues since it was installed elsewhere. The other company didn't get it right, but Greg explained what was wrong and offered solutions to keep my system running efficiently for years to come. His professionalism and honesty were refreshing - I'm glad I found Otter Heating & Cooling!

I found Otter HVAC through a friend's recommendation and I'm glad I did. Gregory and his team were fantastic. Their communication, response time, follow-through, and work quality were all excellent. They're upfront and honest, delivering what they promise without trying to upsell. I appreciate their integrity. I've switched to Otter for my HVAC needs; they've earned my trust.

Gregory takes care of both properties, providing reliable service. He's professional, detail-focused, and punctual. When my furnace suddenly broke down during a winter freeze, Gregory methodically diagnosed the problem and made the necessary repairs. I'm pleased with his work and look forward to using Otter for future maintenance needs.