We have used Olson Air for a number of years; everything from a new central air to Seasonal…read morecheck-ups. They are a smaller business that treat you right, have fair pricing, and know their stuff. They've came out to take care of us at all hours during weekends and weekdays. They had us taken care of within a few days when our AC went out during a particular heat wave and had to order and replace our AC. They even installed an outside outlet on our patio for our new hot tub. I recommend them to everybody and recommend them to you too.

We have utilized Olson twice since living in our home. The first time our AC stopped working. He…read morecame out as soon as he could and was timely. Extremely transparent from the beginning. He filled our coolant then we were back up and running. The second time I called him was to confirm that the toilet I fixed did not have any leaks. Thus, being able to provide the water department proof there are no leaks evident. He was great at assisting me and got the job done. If I have a preference, he will always be my go to, unless I can fix something myself.

My house is old, with as much character as it has maintenance needs. In the last month my hot water…read moreheater, a shower faucet, and an end cap on a cast iron line under the stool all went belly up. De Hart took care of it all - efficiently and professionally. Their staff was awesome. LeAnn, Kurtis, both Chris's and Zach, earned a 5+ with me. I've been fortunate enough to receive good customer service with various home repair companies. But these folks are in a different class. They were extremely professional, while also friendly, informative, and skilled at diagnosing and fixing the problems quickly. I signed up for the VIP furnace and AC maintenance plan without batting an eye. I know it'll pay for itself in the long run by extending the life of my "mature" HVAC system. Their furnace maintenance was thorough, and the receipt included a detailed rundown of system pressures they took. They explained that these readings will be used as a baseline for comparison next year. They informed me about basic maintenance I can do. I'm curious about this stuff and like to learn, so I can do as much of it myself as possible.They even put easy instructions for annual water heater draining right on the unit. I have confidence in their integrity, that they will only suggest maintenance or repairs that are actually needed. Also, Leann went to bat for me when I ran into a snaffoo with my home warranty company, when they ordered the new water heater from Texas rather than getting one locally. Leann made extra calls to iron things out, got authorization to order a unit locally, and we had hot water pronto. Lawrence, thanks for your commitment to excellent service. This level of quality starts at the top. And thanks to your awesome staff for taking such pride in their work, and good care of me and my old house. Oh, and I'll add that my review is as true as my wish NOT to have anything break today. I really like all you De Hart guys and gals, but I'd rather see you in the grocery store:-)

Charged me $150 to tell me what I already knew, even after I made it clear to the receptionist that…read moreI knew what the problem was, told them the unit model number and serial number, and the parts needed. All I wanted was an estimate to repair, but they insisted that they had to see unit and told me I would not be charged to look. Completely false. And then they tried to sell me an overpriced heating unit. Will never call them again, and I recommend you don't either.

I normally don't post reviews, but Frank's plumbing and heating promptly responded to my AC not…read moreworking during an heat advisory. Their prices were a lot cheaper than quoted by bigger companies in Topeka and had my AC back in running within 3 hours of me leaving a message. I would highly recommend, especially in urgent situations. They made my AC not working a priority, especially with the excessive heat warnings!!

Qualified, dependable, affordable!…read more I highly recommend! New installations, repairs, advice.

From the owner: We are a small, family HVAC company with over 50 years of combined experience in Topeka. Our…read morecompany is used as a tool itself to fund a purpose and, in gratitude, our heart is in helping others. We are intentional about providing the best value, quality service and thoroughly enjoy what we do! We specialize in commercial refrigeration and residential/commercial HVAC service/repair and installations. We are thrilled to be able to service and/or install a wide range of HVAC products; ranging from the simplest, smallest systems to the highest efficiency heat pump systems on the market. We enjoy leaving our customers with a smile!

Friess completed my home with all the quality and timeliness. I wanted to do little things in my…read moregarage and we talked and they suggested the best Mini Split both for output and cost and electricity use. I looked on the Net about the unit they suggested and was greatly surprised of the Net responses. Now I can flip a switch on my wall in the garge and in 10 minutes it does not matter if I want cool or warm it is totally processed. I let the Unit run for a week and checked my electric bill and it went of 3 dollars. This is a 25 seer and it exceeds my expectations, and was less $$ than I expected. The Friess gang are very responsive to any issues or questions I have thrown to them.

They were upfront and said they only install when it's in a fthe units they are the authorized…read moresales for. I will do it myself months from now.

Mike and Dustin were very professional and personable. Their services were top notch and they…read moreaccommodated our requests and answered all the questions we had. They went above and beyond the original bid by hauling off old equipment we hadn't talked about previously as we didn't have a way to dispose of it at no extra charge. Price was very reasonable and everything has been working like a charm since they have been here. Will be calling them for all HVAC needs from now on!

These guys were great!! They showed up when they said they were going to. My estimate was pretty…read moremuch the same as the others but these guys were so nice and knowledgeable. I can't say enough good about Dustin and Mike!!!

We purchased two Air Scrubbers and the Laundry Scrubber from Alternative Air in Manhattan KS…read more Beginning with the install, it was professional,clean and we were provided a thorough explanation of the product capabilities. The product works as advertised. The Air Scrubber eliminated odors and within 1 to 2 weeks there was a noticeable decrease in the amount of dust in the house. We have a large golden retriever dog and any odor indicating the dog was inside was gone. As for the laundry scrubber, we were impressed. It is difficult to believe laundry can be cleaned without detergent. The Laundry Scrubber has no problem keeping up with our family of four, including two young boys who are budding athletes. Aside from major stains, which would require pretreatment, we have no issue. Clothes are clean and fresh and any pre-existing odors were gone. The washer stays clean and the musty scent which accompanies front load washers has been greatly reduced. Due to using only cold water washing is a one step process; our 10 year old can do it. We highly recommend these products and the install and service provided by Alternative Air.

From the owner: Delivering customized comfort through quality cooling, heating and plumbing systems since 2009.read more

NOTO Comfort Air provided seasonal HVAC service - they were quick to respond to my call and even…read moretook the time to explain the testing performed. They paused to show me first-hand the amount of build up on the A/C. They also offered guidance for better maintenance moving forward. Great experience, highly recommend!

From the owner: Family own and operated with 15 plus years of experience read more

Incompetent, HVAC, installers costing customers thousands of unnecessary dollars to go back and fix…read moretheir screwup's. Owner is the most unprofessional business person I have ever dealt with not only is he rude. He flat out tries to belittle and intimidate you when there's issues with his installs. He intimidated me to the point I started crying. Then had the audacity to say "isn't that just like a woman to start crying" and blame all HVAC issues on me.

Im not going to dispute people that had any good experiences , good for you! But I can agree with…read morethe bad reviews , That would be where i am at ! Several years ago I had my basement redone and their workmanship sucked big time ! A pipe going from toilet was installed backwards and kept getting plugged until it got redone the correct way. Ac in my house has been expensive repairs with all their trips to "service " it . I finally had another company replace it and no further services was needed . I swear they are more about billing and repeat trips than actually fixing the issue and moving on down the road ! My only advice read all reviews and make your own decisions! For me .. I WILL NOT EVER USE THESE PEOPLE EVER AGAIN !