We can't say enough great things about Zark! They are always friendly, knowledgeable, and genuinely…read morecare about their customers. They take the time to explain everything, never pressure you into buying more than you actually need, and always recommend what's best for your home--not their bottom line. They're courteous, prompt, reliable, and clearly know their stuff. Over the years, they've built a relationship with us that's based on trust, and that's hard to find these days. Their pricing is consistently fair and competitive, and we always feel confident that we're getting honest advice and excellent service. If you're looking for an HVAC company that values integrity, professionalism, and customer relationships, we highly recommend Zark!

I highly recommend Zark. Setting up an appointment was a breeze. The technician , Wes, let me know…read morewhen he was on his way. He was friendly, courteous and professional. No upsale-very honest and took time to explain to me what was going on with my AC. I feel I was charged a fair price. I will definitely use them again, if needed.

I would give zero stars but that is not an option. Dykstra sold to precision and they are not an…read morehonest company. My a/c went out and their service tech came to my house. After looking at the unit, Caleb, the service tech, told me I need to replace the whole system abd it would be 28k for a new furnace and a/c. Luckily I called for a second estimate. M & B inspected the unit and replaced the controller. The parts and labor were $350.00. If precision gives you an estimate, get a second opinion. They did however refund the price of the service call.

Last week my furnace died. It had 18 solid years, I knew this day would come eventually. Luckily…read morelast week was in 40s. I've never gone through this before. I Google heating and cooling places by me and Dykstra came right up with 4.5 stars. I made the call. Within 2 hours Zack shows up. Very kind and professional!! 6 stars for Zack - he diagnosed the issue right away and explained everything. I'm only giving 4 stars overall because I couldn't get the unit installed same day or even next day. Wednesday Ray and Victor installed the new unit. Nice guys. Thursday I get home and its freezing in my house. I notice that the thermostat reads 64 but set to 70. I call Zack, my saving grace!! He calls the office and they send Casey (sp?). Casey showed up that afternoon and found that a wire had shorted. Quick fix and he was on his way. I do recommend Dykstra. There is some confusion with the answering service and a merge going on, but I was able to talk to someone that knew what was going on.

When I had my air conditioner serviced in the spring the guy was very honest that I needed a new…read morecapacitor. He showed me the test and I know my way around air-conditioning units. He didn't try to upsell me to a new unit. Family run. Would definitely use them again.

I waited a week after the installation of the new AC to see how it ran and I have to say I highly…read morerecommend Air Source 1. AC went down during the hottest days of summer and Tim came out and gave me a quote, on paper, to replace a 25+ year old unit, answered all my questions professionally. So I knew there were no add ons. On day of Dustin and Alex came out, professional, really nice and easy to work with and installed it within hours. They kept the install clean and no fuss. Funny guys, too. Great to talk w/. Waited a week to see how the AC ran and it is phenomenal. Worth the investment. Highly recommend Air Source 1.

Before you decide to use them DON'T. By far the worse in customer service. Very unprofessional…read more I have a home located in the south suburbs of Chicago. My furnace went out and my home warranty company HWA called him out to do a diagnostic on the unit. The owner (Demetrius Hughes) came out a day later after I filed the claim. He wasn't there no more than five minutes. He didnt look inside the unit. He didn't really even attempt to start it. He told me all this lies about my unit including I had water damage. He made it seem like he was doing me a favor by saying these are not cover charges but I'm going be nice today and say you have a crack heat exchange. At the time I thought he was a good person looking out for others. I told me that I would get this information to the company HWA so they could replace the unit ASAP. Now it's the winter time in Chicago. He never called the company. They called him several times for the information. They reached him 10 days later. At that point he told them that my unit needed to be exchanged After 7 days of waiting I a cold house with a sick child, I decided to call another company to see if my furnace was a quick fix. Polar heating and cooling came out the same day. The guy was down stairs 3 mins and was able to get the furnace to start. He said that it was NO WATER DAMAGE AND THERE WAS IN DEED A CRACKED HEAT EXCHANGE. He couldn't leave the unit running because it was kicking out too much carbon monoxide, he said it will need to be replaced. I reached excellent service from this company. I told the guy from polar that since this is a covered service we will wait for our home warranty to replace it. Even after we got the approval for the replacement unit. The guy from Your way kept giving us the run around about everything. Saying that HWA never called him to say the new unit was available to pick up. WE called HWA several times they indicated that your way heating has been informed that the replacement until was able to be picked up. It had already been over 10 days without heat. They told him on a Wednesday that the replacement unit was able to pick up. My home went close to a month without heat in the cold Chicago months before he finally got it installed. Bad customer service!

Understanding and informative. Helps you get the best deal and problem solve. Educates you on how…read moreto prevent further issues. Does what is best for you.

London Heating & Cooling was fantastic to work with. Mark was able to fit me in quickly, and both…read morehe and his team did excellent work from start to finish. The price was very fair, and I really appreciated that he charged me exactly what he quoted--no surprises at all. Mark is honest, professional, and takes pride in what he does, which is why so many of my family members recommended him to me. I'm very glad they did, and I'll absolutely be calling London Heating & Cooling again in the future!

The owner personally comes out and talks with you. He also does the job himself. He far and away…read moregives a better price than anyone else. He's not just personable, but knowledgeable and honest. I highly recommend.

Bianca was great setting up our appointment and Ryan was our technician today and was on time and…read morevery professional. Our AC stopped working on the hottest day of the year Sunday but he had it repaired in under an hour after diagnosing the bad part. He had it in his truck and was done very quickly. He then did service on our furnace which has always had issues and replaced a small part on that very quickly and did a full cleaning. Very professional and in and out in under 2 hours. We have used Schuler Heating & Cooling for a number of years because of this kind of great service and very reasonable prices - and will continue to use them!

God Bless the Schulers... they really rescued us and were a pleasure to deal with…read more So it's NEGATIVE 14 ish and my newer furnace craps out in the middle of the night. My HVAC guy and Trane determine it is the motherboard. NOBODY seems to stock these and ETA is 2 days to arrive. I called everywhere I could find that was local-- because my HVAC guy was not going to do the legwork. I suspect most furnace guys try to sell you a new furnace because the part is NOT cheap and it is a bit labor-intensive to install. So- I got a hold of Phil. Not only did he HAVE the part, he was willing to wait for me to drive the 1+ hours to get to his shop to pick it up. Problem solved, heat again within 4 hours of making contact with Phil. While we didn't use their HVAC services since we live so far away-- I am confident you'd be happy in dealing with them. Not only because he has an arsenal of parts to get you up and running which he sells by his on-line business, but he seems like a great businessman. He knows what goes wrong regularly with furnaces, therefore he orders inventory accordingly. And, he seems very trustworthy and nice guy to do business with. I wish we lived closer to use him for HVAC services.

All American Heating and cooling were wonderful. Our heat went out and it is time for a new system…read morebut the cost just is not possible at this time. Tyler gave us options that would fit our budget. We opted to replace the compressor, receiver dryer and expansion valve. He did it the same day and now we have heat and AC!!! Runs great and so much quieter. I highly recommend this company. No hard sell and they go out of their way to make repairs possible for your budget. We priced new systems from several companies and All American had the best price. When we are ready for the new one we will definitely use them.

We moved to the Chicago area 7 years ago. All American had a sticker on our furnace with the…read morehistory of visits (I think it was nearly 30 years old) so we called Mark when we needed service. He is always prompt and goes out of his way to get to you asap. Finally we had Mark replace this old furnace and AC this month - he did a wonderful job as always for a great price. We highly recommend All American.

After a few days with no air conditioning and inside temps in the 90s (yes, inside temperature was…read more91°. Outside was almost 100°F). I'm an old girl and the heat was intolerable. Specific had come out to my home before, a few years ago, and did a great job fixing the central air unit, but I couldn't remember the name of the company and I couldn't find the receipt. So I called another place. Huge mistake. They came out and said the whole thing was no good and couldn't be fixed, then they sent a salesman out, who quoted me $7,700 for a new one. Well, I'm old but I'm not stupid. I sent him on his way and searched frantically for the old receipt from Specific Heating and Air Conditioning. I found it and called immediately. Andy came out right away, looked at the unit and said, "Yeah, I think I should be able to fix it," which he did in a very short amount of time. Perfectly. I am now sitting in my living room with nice cold air blowing on me and I am a very happy old girl, all because of this awesome repairman and Specific. Andy was professional, pleasant, fair and very knowledgeable. I will never call anyone else.

First off let me start by saying Andy is truly a life saver…read more Over night the blower motor in our furnace went out and smoke started coming through the vents. The fire department was called and we (me, my wife, and our 3 kids) were without heat on a 20 degree night. The following morning I made a few inquiries just hoping to get something scheduled and I was surprised to find they had someone available almost immediately. The estimate fee (only $75) was waived once Andy informed us what we needed, 1 hour later our house went from 65 degrees to a comfortable 74. Thank you so much. I would HIGHLY RECOMMEND them.