Customer Reviews

I had other bids for an A/C and furnace, and Welsh was not the lowest bid, but it was the professionalism and knowledge of Rick (estimator), and the Lennox product that caused me to choose Welsh (for the 2nd time) to install the new system. I was just as impressed with Mark (installer) and his installer colleague with their attention to detail on the install. They finished under 6 hours, and the install appears to be excellent. That’s great since an HVAC system’s reliability has more to do with a professional install than the reliability of the equipment itself. But I am sold on Lennox, since Welsh was replacing an original Lennox HVAC system that had lasted 23 years, and the furnace could have gone on probably for many more years. You can’t go wrong with a Welsh installed Lennox HVAC system in my opinion.


I’m not sure if this is the best way to reach you with a big thank you. David and Chris did a great job over the weekend fixing our HVAC system. You guys installed it last November. The thermostat died. I called early Sunday morning and David and Chris worked together to figure out the issue and find a replacement thermostat. It was installed before noon. You really saved my bacon – my very pregnant wife was quite vocal about her need for air-conditioning. The swift action by David and Chris averted a serious crisis! Thanks. I will be glad to be a reference for your service if it helps.

Fritz F.

Had one air conditioner serviced. Tech was punctual and professional.I appreciated the update as to when the tech would arrive.

Paul K.

Welsch Heating and Cooling came out fast (our old unit stopped on a Friday – our new one was in by Monday.) They were very responsive to our needs and very helpful during the installation and followed up to ensure we were happy with our service!

Corinne D.

I just wanted to drop a note of sincere “thanks” for the wonderful service we received today. When my kids called me this afternoon to tell me that the A/C was blowing warm air and that it was 84 degrees in the house, I immediately called Welsch’s emergency service line from my office. I was told we would be put on the emergency/overtime schedule and that a technician would call me. I left my office in Bridgeton immediately — and Welsch beat me to my house by over 5 minutes! Ken (our technician) was great. He had the problem diagnosed quickly and had us back up and running/cooling in just about an hour from the time that I called for help. That’s amazing! Thank you so very much for your wonderful service!

Jane C.

Welsch Heating & Cooling were professional from the first steps to the completion of my project. They replaced two furnaces in my house. The sales rep was trustworthy with the units he recommended. He also pointed out existing ventilation problems that could be a safety concern. The installation crew were friendly and efficient. They cleaned up their work area and removed old units without any problems. They addressed the saftey concern to ensure furnace was ventilated properly to code. They took care of city code inspections before completing the job. Service crew had to be called out twice thereafter to adjust ventilation and blower settings. Service crew was professional and friendly.

Marcus P.

They did a great job on installation of new duct work & installing furnace with new outdoor unit.


We’ve been customers of Welsch Heating and Cooling for the past 40 years. There has never been one time when their service has not been exemplary!

Debbi H.

Our a/c fan went on the hottest day of the year. We have used Welsh for years and they were quick to respond and had a new system in the next day. Couldn’t be happier.


They installed a new furnace and a-coil for us. The installers were very professional and did a great job.

Mike S.

We have lived in our house for 16 years and have struggled with the poorly designed heating & cooling system for 10+ years. Welsch designed a new system that has brought renewed comfort to our living space. I wish we would have hired Welsch 11 years ago!

Richard H.

Welsch had been doing the maintenance on my old system, which was replaced with a new one this winter. From the service on the old to the installation on the new, I have been very happy with the quality of the work and the excellent service I get from everyone in the company. I love the new thermostat I can control with my IPhone! I love my service tech Chris. He is so great about giving me tips on using the system!


I have used them since 1997 and have never been disappointed! Once we had a horrible sickening smell in our house. The gas company couldn’t and told us to call the fire department who said maybe it was The furnace. It was 2 degrees F outside and we had to leave the house open. The man from welsh said it wasn’t the furnace but he promised he wouldn’t leave till he found it. Turned out a gas can had spilled in the garage and got into insulation near furnace, so the smell permeated the house. Way above and beyond. We also the help they gave us in installing the furnace and AC…they did lots of explaining and helped us learn how to use the new thermostat. They could have told us to read the manual.


We have used Welsch before. This was part of an annual heating and  annual air conditioning  tune up. We have two air conditioners and furnaces so the price, in my mind was reasonable. ($290 combined for the two inspections and tune ups.)

They checked and cleaned the system and checked for correct amount of Freon and did it well.

John M.

We have radiant floor heat, but added a heat pump. We also needed a new AC. Job took 2 days, since it was such a big job. Very professional & friendly gentleman we had come work. Even had a few new vents put in. The AC has never been cooler and we are so very happy.

Brenda S.

I cannot remember the cost, but we got a new furnace and AC unit. They also installed a new thermostat that does wifi. I was pleased with their prompt, neat service.

Barbara U.

Enclosed is payment for my new A/C and furnace. Your workmen were exceptional. Ilene O.

Ilene O.

Just wanted to let you know how grateful I am for the wonderful service I have received over the years from your company. ALWAYS super fast response time for repair work, from office staff calling for appointment, to calls the repairman is on the way, to the professional/courteous repairman that do a wonderful job. I know my cooling/heating system is antiquated and on its last leg, you can be sure your company will be my only choice to replace them. Thanks

Matthew K.

• Had to call Welsch this morning to ask about a thermostat issue. Both of the people I spoke with (the receptionist and the service tech) were extremely nice and helpful. The service tech gave me a few different options to try to rectify the thermostat issue before scheduling a service call. How many companies will do that? But Welsch is smart enough to know that scheduling service calls when they might not be needed is a waste of your time and money. You certainly can’t say that for many service companies!

I continue to highly recommend this excellent company!

John H.

I just want to take a moment to thank you for the manner in which a service request was handled yesterday, May 29th.
First of all thank you for getting a technician out here with a few hours.
Secondly, I really appreciate the way the resolution to my problem was handled.
Rob was prompt, courteous, and obviously, very knowledgeable. His diagnosis was that the fan blade (wheel) on the blower motor was out of balance or cracked which was causing the bearing noise from the motor. He suggested that we replace the wheel and since the motor was just replaced last year, Welsch would replace the motor under warranty also because the wheel problem could have caused stress on the motor which, in turn, could result in premature failure of the motor.
The point is, I just want you to know how refreshing it is to be dealing with a company that, first of all, employs folks the caliber of Rob, and additionally stands behind their products and services and REALLY TAKES CARE OF THEIR CUSTOMERS.
I really feel, as usual, Welsch treated me very fairly.

Dennis D.

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