Save money and stay warm this winter with these five expert HVAC maintenance tips for St. Louis homeowners. Boost efficiency and cut energy bills.
As winter arrives in St. Louis, your HVAC system becomes the unsung hero of your home, working around the clock to keep you warm. But did you know that a few smart maintenance tasks can dramatically improve your system’s performance, lower your energy bills, and even extend the life of your equipment? Whether you’re in Chesterfield, Kirkwood, or right in the heart of St. Louis, these simple HVAC maintenance steps can lead to real savings.
From the phone to the completion of the job everyone is so polite and informative. I had Giovani as our representative and he was very informative and professional, and knew exactly what the problem was. Thanks so much.
Response from the owner:Thank you for the kind review, Frank! We appreciate you and your business.
Zach did an excellent job! Always courteous and friendly. We would highly recommend calling Thomas Hoffmann HVAC for any heating and cooling needs.
Response from the owner:Thank you, Allan! We're glad to hear that Zach provided excellent service and appreciate your recommendation for Thomas Hoffmann HVAC.
Was able to locate the problem right away and replace a switch and add Freon very nice job by this employee. I will recommend Thomas Hoffman for future references.
I had Nick come out. He was awesome. Very knowledgeable, prompt and helpful. I will definitely recommend Thomas Hoffmann HVAC to others in need of HVAC support.
Response from the owner:Thank you, Jack! We're glad to hear that Nick provided you with excellent service. We appreciate your recommendation and look forward to assisting you and others in the future.
From our initial quote until the new furnace and AC were completed, everything was smooth and efficient. Zachary and Giovanni were excellent on-site, taking time to explain the installation as well as leaving the home clean. Thank you Thomas Hoffmann team
Response from the owner:Thank you! We're glad to hear that the installation process was smooth and efficient. Zachary and Giovanni will be pleased to know their efforts made a positive impact. We appreciate your kind words about the team!
Update 4/6/26: Zach Sperling is such a pleasant and knowledgeable technician that I recommend him highly. Thomas Heating has been a wonderful company to work with in my maintenance plan. If you are looking for a reputable company, look no more.
This company is so responsive that I love them. They respond immediately, and I trust them to tell me what needs to be done. I haven’t been steered wrong yet. They are genuinely nice to work with and honest. I use their maintenance program which I highly recommend.
Response from the owner:Thank you for your kind words, we truly appreciate your trust in us and are glad to hear about your positive experience with our services.
work good but got at least 6 messages from them very annoying
Response from the owner:Thank you for your feedback, Harold. We appreciate your input and understand how too many messages can be frustrating. We'll work on improving that experience for you.
Nick was great! He came right out and was able to solve the problem fairly easily. He communicated well and helped us prevent a future problem as well.
Response from the owner:Thank you for the review, Philip! We are happy to hear you had a pleasant experience working with us.
Response from the owner:Thank you, Pat, for your kind words about Giovanni; we appreciate your feedback and are glad to hear that he made a positive impression.
They have never failed to fix my hvac problems. These folks are top tier.
Response from the owner:Thank you for the wonderful feedback, Greg! We're glad to hear that you've had such positive experiences with our team. Providing timely and effective service is our priority, and we're here whenever you need us. Looking forward to assisting you again!
Giovanni was very professional, helpful, patient and helped me figure out the issue, if it was covered under warranty, and next steps. Great overall experience and much appreciated.
Response from the owner:Thank you, Amy! We're glad to hear that Giovanni provided you with such professional and helpful service. Your appreciation means a lot to us!
Always professional and thorough whenever they service our home. We have used Thomas Hoffmann Air Conditioning & Heating multiple times since we moved into our home and will continue to use them in the future.
Response from the owner:Thank you for the thoughtful review, Joe. We appreciate you and your business!
0 stars if I could. Bought a faulty (not to mention overpriced) surface igniter, called back five minutes later after installing, of course they didn’t stand behind their part. Go to Grainger instead. Same (working) part, half the price.
Response from the owner:Hi there. I am unable to locate your customer profile. Please give our office a call at 314-471-7625 so we can get this figured out for you.
My furnace was not working. A very nice gentleman came out this morning and fixed the problem and now I have much needed heat. He was very professional and courteous. I will definitely be using them again when the need arises.
Response from the owner:Thank you for the positive feedback! We're glad to hear that you were pleased with our prompt and friendly service. We look forward to assisting you again in the future!
I will always call Hoffmans for my air and heat needs. They were out to my daughters house that day and fixed it. It was right before the weekend storm with below zero temps the next day. They saved my daughter and grandbabies. I could never thank them more.
Response from the owner:We are so happy to hear that we could help! Thank you for the kind review.
Snow and drifting snow covered intake and out take vents causing the furnace emergency to shut off furnace. Cleaned off the driftibg/ snow off roof and vents furnace works perfect now. Thank you and great job Nick.
Response from the owner:Thanks for the great review, Scott! We appreciate your support.
5 stars! Nick was here to fix my heater within 2 hours of my call. He explained the problem to me thoroughly and got the job done quickly & professionally. Thank you so much!
Response from the owner:Thank you for the kind review, Jennifer! Glad we could help.
Extremely thorough and educational. They do a wonderful job of explaining everything and making sure I was comfortable knowing how the systems worked in my house!
Response from the owner:Thanks for the great review, Matthew! We appreciate your support.
I noticed a strange noise that I was concerned was linked to my furnace. I called Thomas Hoffman Heating & Cooling and Nick came right out. He was very thorough checking all components. Thankfully all checked out for us this visit. Definitely recommend Thomas Hoffman Heating & Cooling!
Response from the owner:Thank you so much for the kind review, Abby! We appreciate your business and look forward to servicing you in the future.
Thomas Hoffman is a wonderful company to work with. Techs are knowledgeable, personable & efficient.
Response from the owner:Thank you, Christine, for your kind words about our team; we appreciate your feedback and are glad to hear you had a positive experience!
Got a quote over the phone. Everything was explained thoroughly. Dakota, my technician arrived and on time, was very professional and knowledgeable. He didn’t try to upsell or change anything. He did a great job. We can already tell the difference since the ducts and vents were cleaned. Would recommend an use Hoffman again in the future.
Response from the owner:Happy to hear you had a pleasant experience using Thomas Hoffmann!
The technician, Ryan, was knowledgeable and helpful in identifying the issue with our mini split AC unit. They are the second company we called after issues with the first and will be using Hoffmann again.
Response from the owner:We are so happy to hear your experience with Thomas Hoffmann was pleasant. Thank you for your kind review, & we look forward to working with you in the future!
1. Replace or Clean Your Air Filters
Why it matters: Clogged or dirty filters restrict airflow, forcing your system to work harder and consume more energy. This not only increases your utility bill but also puts unnecessary wear on your furnace or heat pump.
How to do it:
Check your filters monthly during the winter.
Replace standard filters every 1-3 months, or clean reusable filters according to the manufacturer’s guidelines.
Consider upgrading to high-efficiency filters for improved air quality and system performance.
Pro Tip: Homes with pets or allergy sufferers may need more frequent filter changes.
2. Seal Leaky Ductwork
Why it matters: According to Energy Star, up to 30% of heated air can be lost through ductwork leaks. That’s your hard-earned money disappearing into crawl spaces and attics.
How to do it:
Inspect accessible ducts for loose connections, gaps, or holes.
Use mastic sealant or aluminum foil tape (not duct tape!) to seal small leaks.
For a thorough inspection and sealing, consider a professional duct sealing service.
Local Insight: Older homes in areas like Maplewood or University City are especially prone to ductwork issues due to aging infrastructure.
3. Program or Upgrade Your Thermostat
Why it matters: Heating your home when no one’s there wastes energy. A programmable or smart thermostat helps you heat smarter, not harder.
How to do it:
Program your thermostat to lower the temperature 7-10 degrees when you’re asleep or away.
Upgrade to a smart thermostat that learns your schedule and can be controlled remotely.
Take advantage of energy rebates available for smart thermostat upgrades in Missouri.
Money-Saving Example: Lowering your thermostat by 7-10°F for 8 hours a day can save up to 10% on heating costs annually.
4. Schedule a Professional Heating Tune-Up
Why it matters: Just like a car, your heating system runs better with regular tune-ups. It ensures safety, efficiency, and reliability through the coldest months.
What it includes:
Inspecting heat exchangers, burners, and ignition systems
Checking gas pressure and carbon monoxide levels
Lubricating moving parts
Testing overall system operation
Peace of Mind: At Thomas Hoffmann Air Conditioning & Heating, our expert technicians serve homes throughout the St. Louis metro area, delivering thorough, honest service with every inspection.
5. Add Insulation & Weatherproofing
Why it matters: Heating systems often get blamed for high bills, but your home’s insulation plays a huge role in retaining heat. Poor insulation leads to heat loss and overworked equipment.
Quick wins:
Install weather stripping around doors and windows
Add insulation to attics, basements, and crawlspaces
Use door sweeps and thermal curtains for added protection
Local Note: Homes in places like Wildwood or Eureka that are more exposed to wind benefit significantly from upgraded insulation.
Save Now, Stay Warm All Winter
These five HVAC maintenance tasks are simple, effective, and proven to save you money while keeping your home comfortable. Best of all, you don’t have to tackle them alone. As a locally owned and operated company, Thomas Hoffmann Air Conditioning & Heating is proud to help St. Louis homeowners protect their HVAC investments and enjoy stress-free winters.
At Thomas Hoffmann Air Conditioning & Heating, we pride ourselves on being a locally owned and operated HVAC company. With more than 30 years of experience and a master technician and mechanical engineer as our owner, we can replace, repair, and maintain your business or home’s HVAC system.
