They installed my tank less water heater, and have been back for routine maintenance and another…read moreunrelated issue. Dennis is polite, knowledgeable, and dependable. Pricing is good, too. Will be happy to work with Parsons in the future.

Amazing customer service! Friendly, knowledgeable and…read morereliable! Professional company, my plumber for life. Easy to get an appointment and worth every penny!!

Very friendly and knowledgeable, Adam F. replaced our dishwasher in a prompt and professional…read moremanner. Well done!

Disappointed in timeliness getting a quote for both new furnace and air conditioning.read more

I contacted Herczog with a significant furnace issue that several other companies were unable to…read morediagnose. I had three other vendors evaluate the problem, and each one told me something different--each "fix" was expensive--and they all ultimately said I needed a new furnace. Herczog took the time to thoroughly assess what was actually going on and gave me an honest, practical solution that fixed the problem without unnecessary replacement--saving me thousands of dollars. They're a family-run business, and that care shows from the very first call, with friendly, helpful people answering the phone. Their professionalism, integrity, and attention to detail truly set them apart. I wouldn't hesitate to recommend them.

Herczog installed two central AC units (a 4-ton and a 2.5 ton) back in 2014 when I bought this…read morehouse. They were recommended by our realtor for a low-velocity system, along with another vendor for high-velocity. Our realtor is one of the most-known historical home realtors in the area. I obtained other quotes for the install as well, and Herczog was both the least expensive and most responsive. The extensive install on a large historical Cleveland Heights home was done very professionally and in under two weeks. I texted Ted Herczog today, ten years later, because the 4-ton unit was not pumping out ice-cold air anymore. He came out himself, same day, after 5pm on a 90F Friday to fix it. It's fixed. Ten years of flawless operation. One day we had an issue... and Ted was here to fix it same day. I wish I could give 10 stars. Thank you very much, Ted!

I needed quick service to resolve and issue and Personal was at my house within 20 minutes and…read morefixed it soon after that. Not only that but he showed me how to find and fix that particular clog if it happens again. Great customer service!

Was expecting a free estimate to find cause behind running toilet & cost to repair. Polite young…read moregentleman spent approximately 2 minutes to make a couple adjustments in tank & charged me $140 (after $20 senior discount). Most places advertise free estimates & I was expecting that in this case. VERY disappointed in the way this was handled. Will never use this company again & expressed as much to the young man (who was polite but didn't seem to care). I work with public & will continue to tell my EXPENSIVE & disappointing experience with this company.

Came to our home to provide an estimate. Estimator was late and has not provided an estimate…read more Guess they don't want our business.

Had a new Trane system but in July 2025 and in less than a year the system is leaking. Called them…read moreand a serviceman came out and said everything good. No more than a week later I turn the ac on today and it's leaking water. Called them again and will see what happens going forward. Thus far ism am disappointed.

I'm sorry to have to write this review but it's necessary, I feel…read more A new image is actually Anderson Heating and Cooling now. I called to schedule a residential boiler service. The tech showed up with only a clipboard in hand. Normally, they have tools etc and are ready to work. They typically drain some water out, check for sediment, clean the sight glass, open the pilot cover, clean it, vaccum it. The tech did NONE of this. He was here for a half hour, charged me a 100 bucks and left. Not exactly a boiler tune up that i paid for. If you have a residential boiler system I suggest not using this firm. Years ago the tech who came out did a great job. This year was not the same situation.

Josh and his assistant were very professional and knowledgeable. Made me aware of every step he…read morewas doing. It was only for an A/C yearly maintenance but will definitely have them back.

My mom Chun Ro recently had a new heater installed by State Heating and Air Conditioning Inc., and…read morethe experience was outstanding. From start to finish, the team was professional, knowledgeable, and incredibly thorough. Technician Rich Gephart arrived on time, explained the entire installation process clearly, and made sure I understood all my options before getting started. Their workmanship was excellent, and they treated my home with great care--leaving everything clean and organized when the job was complete. The new heating system works perfectly and has already made a noticeable difference in comfort and efficiency. It's clear that State Heating and Air Conditioning Inc. takes pride in their work and truly values their customers. I highly recommend them to anyone looking for reliable, high-quality HVAC service.

Ray was the best service person that I have had in 8 years with state heating. He was on…read moretime,polite and did much more cleaning on my unit than anyone else has ever done

I had an appointment today ( that I stayed home for ) when it was about a half hour after the time…read moreI called to see what was going on and was told he had 2 more stops before me and the one he is at is was a two and half hour job. I get that things happen and change through a day BUT to not to call or give a customer an heads up on there delayed is just wrong. I did try to call back to speak to someone about 10 minutes after this happened & before I left this review and try for a explanation but they declined my phone call ( never picked up ) Don't say I didn't warn you

My wife and I hired GCS on two separate occasions and their electricians are great! Anthony in…read moreparticular is very knowledgeable and experienced. Their guys ran wiring to a switch in two bedrooms and installed and a ceiling fan and light fixture during the first job a couple of years ago. Most recently, we hired them to replace two ceiling fans, 3 outdoor lights, 1 outlet, and hook up a transfer switch for our backup generator. Everything was completely quickly and efficiently and the electricians were friendly and professional! Pat is the owner and is very nice to talk to on the phone, as is Kathy, the office manager! Calls and emails are returned promptly and pricing is very reasonable compared to other quotes we received. We'll definitely continue using GCS for any electrical work and refer our friends and family as well! Keep up the good work, guys!