HVAC reviews in Des Plaines, Illinois

We hired them to diagnose an issue with our Navien tankless water heater, which was causing the temperature of the water coming out to fluctuate wildly - it would start hot and then drop to lukewarm within minutes. The technician who arrived was clearly still learning on the job and spent most of their time on phone calls with Navien's technical support. We paid $225 for the initial troubleshooting session, only to be quoted an additional $450 for what we later found out was a simple repair - replacing two parts that could have been done in under 30 minutes, with prices that would barely cover the cost of the replacement parts themselves. A quick online search revealed that the check valve costs around $8 and the flow sensor $33. We ended up canceling the scheduled repair, ordered the parts ourselves, and completed the job in a fraction of the time - and without needing to bypass the recirculation tank to get hot water while we waited for the parts. Despite saving $450, I'm left feeling like we overpaid, especially considering what should be expected from a professional service.

Our experience with Perfect Temperature Control was nothing short of remarkable. After being let down by our previous heating company, which dropped us from their service area without warning, failed to return or refund a faulty part they'd installed, and repeatedly upsold us on unnecessary repairs, we were desperate for a reliable alternative. After scouring reviews, we chose PTC and couldn't be more pleased.

What struck us was the stark contrast between our past experiences and Sam's approach. Unlike other companies that use high-pressure sales tactics to make a buck, Sam assured us upfront that PTC doesn't operate on commission. We were skeptical, but he proved it true. I had assumed we needed a new humidifier pad, so asked him to replace it, only to be told it was in good shape and unnecessary.

Sam's professionalism shone through during the inspection and maintenance appointment. He took the time to thoroughly explain his findings and recommendations, and went above and beyond to secure our water heater piping and safeguard the area. His attention to detail also included observations about our nearby dryer duct work – a welcome change from techs who'd misinformed us in the past.

What really impressed us was Sam's kindness and courtesy, especially when interacting with my elderly mother. After years of feeling pressured into costly repairs, it was refreshing to see a company prioritize honesty and transparency. The inspection fee was reasonable, and Sam even refused multiple tips – a testament to his integrity.

The entire experience was a breath of fresh air, and we're grateful for the excellent service provided by PTC. Kelly and Brian on the phones were friendly and helpful too. We highly recommend Sam and PTC, and appreciate the genuine care they bring to their customers' homes. Thanks, Sam!

I've been a customer of this company for years. The owner has exceptional knowledge, integrity, and a fair approach. The work quality is consistently high, delivering good value for the money. Recently, they installed a new furnace and did an outstanding job. My annual service technician is also excellent - knowledgeable, thorough, and patient with my queries. He takes the time to address all my concerns. I highly recommend using their services; you won't be disappointed.

It's always there when I need them.

Good service from professionals on time.

This company is by far the only choice for any home services. Highly recommended.

Thanks for the prompt and top-notch help - you were a lifesaver!

Nick is top-notch, incredibly knowledgeable and super professional - he's a must-hire.

Nick has been a lifesaver - consistently fast, dependable, and genuinely warm in his approach. His customer-centric attitude is truly refreshing; I feel lucky to have discovered him.

I've relied on NJL's services for over two decades, both personally and professionally through my Highway Dept and residents. His professionalism, punctuality, and workmanship consistently meet high standards. I have no hesitation in endorsing his company to others - he's the real deal.

We've been consistently satisfied with Nick's services. He recently installed a new AC unit and helped us resolve our humidity problems. Nick is upfront, never trying to sell more than necessary, and arrives on time. His professionalism shines through in his work. We've recommended him to others, who have also had great experiences with him.

I've relied on Nick at NJL for all my home services needs - HVAC, plumbing, and electrical issues - for over a decade now. They're always my first call, and I trust them implicitly. What sets them apart is their upfront honesty and willingness to repair rather than replace equipment when possible. Their prices are reasonable, but what's even more impressive is the quality of work and attention to detail they bring to every project. Nick and his team consistently deliver a solution that meets my needs, and I have no hesitation recommending them to anyone I know - whether it's family, friends, or colleagues.

Nick has taken care of our aging AC and boiler for years, consistently providing prompt service in emergency situations, including sweltering heatwaves and icy spells. His honesty and cost-saving expertise have been invaluable - we've relied on him multiple times to avoid costly damage. Highly recommended.

Nick Levas is knowledgeable and experienced in all aspects of home services. He delivers top-notch work with fair and affordable rates. His guidance is expert, honest, and spot on - exactly what you need from someone providing this kind of service. Trust him with your HVAC needs, he won't let you down.

NJL did a great job for us - Nick was very responsive and got our heating back on quickly, despite the roof top unit failing during the coldest time of year. He tracked down rare parts locally and installed them promptly. His competitive pricing is also a big plus. Overall, I'm impressed with the service, especially considering it happened at a critical moment.

The technician broke down the issue and outlined the solution.

Jeremy is top-notch - always punctual and delivers quality work. He's the only one I'd consider for any repairs, thanks to his reliability and fair prices. Thanks again, Jeremy!

Jeremy is top-notch - reliable, trustworthy, and genuinely honest. I've sent several friends his way, and all reported excellent experiences. Will definitely return.

They were friendly, knew their stuff, showed up on time, and genuinely cared about their clients. Got a quote the next morning and finished the job in one go - very pleased with their efficiency and expertise.

Northside Mechanical has consistently demonstrated exceptional professionalism. A fellow tradesperson's respect for their work is well-deserved, as they consistently deliver high-quality results that earn my endorsement among peers.

Really appreciated their assistance. Had a bit of a crisis when our furnace was only running for a few seconds, then shutting off. They arrived within hours and got it sorted out in under an hour.