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HVAC Maintenance: 4 Spring Cleaning Musts for Your AC Unit

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If you haven’t had spring maintenance performed on you’re AC unit, it’s not too late.

Springtime is the ideal time to have your HVAC system checked. An unchecked AC unit can cost you money in energy waste and expensive repairs that could have been prevented. In addition, poor maintenance is the main cause of unhealthy indoor air quality. This can lead to respiratory problems, coughing, worsened allergy symptoms and a stuffy nose.

Getting an HVAC system with a built-in humidifier or air purifier is a great idea, but if you can’t upgrade your unit, the most important thing you can do is to keep it well-maintained by having regular maintenance checks performed.

Thomas Hoffmann Air Conditioning & Heating LLC
Excellent
4.9
Based on 574 reviews
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Our furnace decided to stop working at 11pm on a Friday right before a bad winter storm. They took my call that night and had a tech (Duraid) out by 9am the next day and had us all fixed up within 15 minutes! Fantastic customer service. Thank you!!
Thomas Hoffmann always does a great job in servicing our HVAC. Installed a new system last and it’s working great and very efficient. Nick goes above and beyond when servicing and answers all my questions. Highly recommend Thomas Hoffmann Air conditioning & Heating.
Response from the owner: Thank you, Nancy, for your kind words! We're glad to hear that you're satisfied with your new system and appreciate Nick's dedication to great service. Your recommendation means a lot to us!
They were professional and got my hot water back on. And I'm happy about that.
Response from the owner: Thank you, Pamela, for your kind words! We're glad our team was able to restore your hot water and meet your expectations.
Had a water pump leak and they were out the very next day to repair!
Response from the owner: Thank you, Andrew, for your kind words! We're glad we could quickly help with your water pump leak. Your satisfaction means a lot to us!
Great service and was very prompt. Service person was courteous
Response from the owner: Thank you, Mary, for your kind words about our service and the courtesy of our team; we appreciate your feedback!
Called at 5:50 on a Friday hoping to get an appt for next week. Guy on the line listened to my problem, diagnosed the problem over facetime, and gave me instructions as to how to change the filter on my unit with no problem at all. Fixed the problem and I didn't even have to pay a cent for it! I'll definitely be coming back here when we run into ore substantial maintenance problems.
Response from the owner: Thank you, James, for sharing your experience! We're glad our team member could assist you effectively and that you found the solution without any cost. We look forward to helping you with any future maintenance needs!
Awesome job! Nick was great. Prices are reasonable and well explained what I’m paying for and what work needs to be done.
Response from the owner: Thank you, Mitchell! We're glad to hear you had a great experience with Nick and that you found our pricing clear and reasonable. Your feedback means a lot to us!
Always professional, always on time and good value for the work that they do!
Response from the owner: Thank you, Jan, for your kind words about our professionalism and value; we truly appreciate your support!
As always, the Hoffmann technician was polite, professional, and efficient. Pricing is reasonable and even more importantly, they are dependable. I will continue to use Thomas Hoffman A/C and Heating.
Response from the owner: Thank you, Mark, for your kind words about our technician and for your continued trust in Thomas Hoffman A/C and Heating; we truly appreciate your support!
My neighbor referred these guys to me when had water heater problem. Previous company told me I needed to replace it. Tom’s technician fixed it for less than $200. This was over 2 years ago and have been using their service ever since. They are very trustworthy.
Response from the owner: Thank you, Mary, for sharing your experience and for trusting us with your water heater issue; we're glad our technician could help and that you've continued to rely on our services!
Nick Hoffman was amazing! He came out same day when our heat suddenly went out. He took the time to describe the problem and expertly fixed and tested it! Will definitely be recommending them. Thanks.
Response from the owner: Thank you, Matt! We're so glad to hear about your positive experience with Nick and that he was able to help you promptly. Your recommendation means a lot to us!
Job well done. The technician was competent and polite and knowledgeable. We'll have him back in the spring, honest company.
Response from the owner: Thank you, Laurel, for your kind words about our technician's competence and knowledge; we look forward to serving you again in the spring!
Realized my furnace stopped working late last night and forecast called for very cold arctic air blast. Called my regular HVAC company that advertises 24 hour service to find that after 7 PM, there is only an answering service. Same with two more “24 hour service” companies. Then I called Thomas Hoffmann HVAC Company and Nick quickly answered, listened to my issue, gave me a quote and was on his way. Nick arrived soon, completely checked out my furnace, found the problem and did the repair. Because the problem was fairly minor, he even gave me an unexpected and very appreciated discount. Nick was professional, competent, and very engaging. Best emergency, after-hours experience I’ve ever had. Nick saved the day and gave me the peace of mind I needed.
Response from the owner: Thank you, Richard, for sharing your experience; we're glad Nick could provide you with prompt and professional service during such a challenging time. Your kind words mean a lot to us!
Nick was great he was prompt and very patient in explaining the problems with our system and the steps we would take to solve them.I highly recommend using Thomas Hoffman Air Conditioning and Heating!
Response from the owner: Thank you, Benjamin, for your wonderful feedback about Nick's promptness and patience; we appreciate your recommendation of Thomas Hoffman Air Conditioning and Heating!
Nick was friendly, professional and knowledgeable, he did an awesome job!!
Response from the owner: Thank you for recognizing Nick's friendliness, professionalism, and knowledge - we're glad you had an awesome experience!
Great customer service! Very knowledgeable
Response from the owner: Thank you, Rob! We're glad you had a great experience and appreciate your kind words about our knowledgeable team.
Furnace would not blow heat on Friday night and after leaving a few messages to several companies, Mr Hoffman called me back quickly and did a service call. Diagnosed the issue and was able to fix the problem. Will need a new unit soon, but nice not be without heat during the holidays! Quote and Invoice receipt done on the spot and detailed! Will use again for sure.
Response from the owner: Thank you, Heath, for your kind words! We're glad Mr. Hoffmann could get your furnace working in time for the holidays and provide a detailed quote and invoice. We appreciate your trust in us and look forward to helping you again in the future!
Fast, friendly and very cooperative.
Response from the owner: Thank you, John, for your kind words; we're glad you had a great experience with our team!
Excellent! Highly recommended
Response from the owner: Udis, we truly appreciate your recommendation!
Thomas he was prompt and was great getting us up and running. He was awesome
Response from the owner: Thank you, Tom, for your kind words about OUR Tom; we're glad to hear he helped you get up and running smoothly!😊
I was referred via home advisors. And I was so worried about the cost and the distance but Nick came and found my problem and fixed my problem and if I could I would shout-out to the world this is a honest and good company to hire. As a landlord over the road of 5 homes. I can call this company and trust that they will do the job and be honest. And I will not have to pay extra fees or be given a 3 week appointment Just because it's rental property. This is my go to company and I strongly recommend this company.
Response from the owner: Thank you, Annie, for your wonderful feedback! We're so glad to hear that Nick was able to address your concerns and provide you with the honest service you deserve. Your trust means the world to us, and we appreciate your strong recommendation!
Called Thomas Hoffmann HVAC and received service very quickly. Regular winter maintenance was provided. They always do a great job.Really appreciate their service and would recommend to anyone in kirkwood!
Response from the owner: Thank you for choosing Thomas Hoffmann HVAC! We're glad we could promptly address and resolve your HVAC issue. Appreciate your recommendation!
Punctual / friendly / great service !!Highly recommend!
Response from the owner: Thank you, Mike! We're so glad you had such a positive experience with our technicians—your recommendation means a lot to us!
Having Nick come to our aid was a great experience and he offered followup assistance with the fancy technology part of the appliance if we need it. We will call him again if the need arises. Merry Christmas.
Response from the owner: Thank you, Marilyn! We're glad to hear that Nick was able to assist you and provide follow-up support. We appreciate your trust in us and wish you a Merry Christmas!
These guys are pros.Techs are friendly, listen and explain what they are doing.Office staff is responsive.Fast service....
Response from the owner: Thank you, Clark, for your kind words! We're glad to hear our techs and office staff made your experience a great one. Your feedback means a lot to us!
Nick was a true expert in explaining our options for a new thermostat.
Response from the owner: Thank you, Robert, for your kind words about Nick's expertise; we're glad he could help you with your thermostat options!
My AC unit was located on the ground in a very undesirable area; in the direct path of my neighbor’s downspout. Sent pics to Thomas, got a reasonable estimate to raise the unit off the ground and bolt it to my foundation. The work was completed cleanly and efficiently at a very reasonable price! Extremely satisfied with their work!
Response from the owner: Thank you, Diane, for your wonderful 5-star rating; we appreciate your support!
Notified me of expected arrival time and then again when he was on his way and was exactly on time! Nick was very personable and trustworthy.
Response from the owner: Thank you, Maureen. We're glad to hear that Nick kept you informed and made your experience enjoyable!
Thomas Hoffmann AC & Heating was wonderful to work with. They arrived on time, diagnosed the issue and got the work done fast. I would recommend Thomas Hoffmann AC & Heating to anyone.
Response from the owner: Thank you, Adam, for your kind words and recommendation; we're glad to hear you had a great experience with our team!
Tom and his team helped us select a great 2nd unit for our first floor. Installation went smoothly and it looks great. Cheers!
Response from the owner: Thank you, Immy! We're glad Tom and the team could assist you in finding the perfect unit and that the installation went smoothly. Enjoy your new space!
Arrived early in the time window quoted. Zach is a thorough tech and discovered an issue I had suspected. Able to quickly get the part and fix the issue. Great company to work with. The communication before the appointment is outstanding. Highly recommended.
Response from the owner: Thank you, Dale, for your wonderful feedback! We're glad Zach could assist you effectively, and we appreciate your kind words about our communication and service.
Excellent Service. Thank you Zackery
Response from the owner: Thank you for your kind words, Buzz! It was a pleasure assisting you.
I'm a new customer and had my first appointment for furnace check.My tech was Zack and what a professional. He explained how he checked system and answered all my questions. This was a very good experience
Response from the owner: Thank you, Patricia, for your kind words! We're glad to hear that Zack provided you with a professional and informative experience during your furnace check. Your satisfaction means a lot to us!
Thomas Hoffman was so helpful. They even helped me set up my nest thermostat.
Response from the owner: Thank you, Krista, for your kind words; we're glad Nick could assist you with your nest thermostat!
Service was on time and did a quality service of my two systems.
Response from the owner: Thank you, Paul, for your kind words about our timely and quality service; we appreciate your feedback and are glad to hear you were satisfied with your systems!
Excellent customer service. Reasonably priced. My go-to for any HVAC needs.
Response from the owner: Thank you, John, for your kind words; we appreciate your trust in our team for all your HVAC needs!
Zachary is a very efficient worker and explained the work he did well.
Response from the owner: Thank you, Joseph, for your kind words about Zachary's efficiency and clear explanations; we truly appreciate your feedback!
I called on December 25th at midnight and started leaving a message and Thomas Hoffman the owner called me back almost immediately. He said he would come out the next morning between 8:00 and 10:00 am snd he was promptly on time. He fixed my problem and while he was there I decided to get an estimate for a new furnace and air conditioning unit. The price was very reasonable and the installers one of them being his son were both very professional very courteous, polite, arrived on time and finished the same day. I enjoy knowing that I now have the support of Thomas Hoffman heating and air conditioning along with the peace of mind that comes with owning a Trane. Nothing stops a Trane.Albert Koesterer
Response from the owner: Albert thanks so much for your kind reviews and your business. We truly appreciate it!!!
Great service! He set the thermostat to reach a certain temp and then go to a lower temp. Then in the AM go to a higher temp.He is patient and quite knowledgable.Dick Drummond - Kirkwood
Response from the owner: Richard, thank you for your kind words! I'm glad to hear you had a great experience with our services.
Zachary was here on the dot at 8:00am. Thank for making me the first stop as promised. Very friendly too.
Response from the owner: Thank you for recognizing our professionalism and friendliness!
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The HVAC Maintenance Checklist

  • Blades on the Condenser Ventilator Need to Be Cleaned – The condenser is the unit that stays outside of your house. It contains coolant, which lowers the temperature of the indoor air while it travels through it before heading back in. Your condenser has a large ventilator that redirects the air and it’s one of the main things that need cleaning during routine maintenance work.
  • Replace Dirty Filters on the Indoor Unit – Air filters are the most obvious items on the check list. Dirty or damaged filters constrict the flow of air entering your home. By having them checked and replaced as needed you are ensuring that your family is kept comfortable as well as safe from some air pollutants. It is a good idea to keep a note near to the filter and date whenever they need to be replaced. Filters that do not last for a certain amount of time may be an indicator of a bigger problem with your system.
  • Inspection of the Duct Work – A quick assessment of your duct work will also be performed. In most homes, the majority of duct work is hidden from view. Expect your HVAC expert to ask you some questions about the comfort levels in your house. He will specifically be curious about any hot or cold spots or rooms that consistently do not match the temperature of the rest of the house.
  • Calibration of the System – The HVAC technician will calibrate your system. They will want to check that the output matches the temperature settings. If a discrepancy is noted, they will perform further checks to identify and remedy the cause of the problem. This will include an assessment of the electrical wiring. All of the connections should be tight and the technician should read the voltage to make sure that the output is sufficient for the unit. All the thermostats inside your house will also be checked at this point to see if they are reading the room temperature accurately. This is a good time to ask any questions you may have about using the settings to cut down on energy use.

Call Thomas Hoffmann Air Conditioning and Heating Today

Thomas Hoffmann Air Conditioning & Heating LLC is a full service residential heating and air conditioning company in St. Louis. With over 30 years of experience, and with a master technician and mechanical engineer as our owner, we can replace, repair, and provide maintenance for your home’s HVAC system.

Give us a call!

If you haven’t had spring maintenance performed on you’re AC unit, it’s not too late.

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