HVAC Solutions by Daikin TMI

Our Divisions

Residential

Ensure your home is a sanctuary year-round with a reliable, energy-efficient HVAC system from Daikin TMI. We specialize in providing contractors & homeowners across St. Louis, Kansas City, and Wichita with tailored Daikin residential solutions, combining world-class equipment with expert local service for consistent heating, cooling, and healthy air quality.

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Commercial

Your business deserves an HVAC system that delivers unwavering comfort and optimizes energy use. Daikin TMI is your trusted partner across Missouri, Kansas, and Illinois, providing comprehensive Daikin commercial HVAC solutions tailored to your facility's unique demands. From expert design and installation to proactive maintenance and reliable parts supply, we ensure your commercial space operates at peak performance.

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Parts

Whether you’re sourcing OEM replacements or high-performance aftermarket components, our Parts Division is your one-stop shop. We stock a wide range of HVAC parts—including compressors, filters, and specialty equipment—designed for long-term reliability and system efficiency. Every item is engineered with precision to minimize downtime and keep your operation moving. Plus, with our rewards program, you’ll save more with every purchase.

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Controls

With Daikin-TMI Controls, you gain more than just automation—you gain strategic control over your building’s comfort, efficiency, and sustainability. Our open architecture systems eliminate vendor lock-in and empower you to choose the hardware and service partners that best fit your operations. From energy dashboards and HVAC controls to security, lighting, and toxic gas monitoring, our scalable solutions help you create safer, smarter spaces.

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Service

From emergency repairs to ongoing maintenance, our Service Division is built to handle even the most advanced HVAC systems. With over 75 factory-trained technicians across Missouri, Kansas, and Illinois, we provide reliable, round-the-clock support that keeps your equipment running at peak performance. Whether it’s Daikin’s VRV technology or complex chiller systems, our team brings unmatched expertise and rapid response when you need it most.

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Get In Touch

(636) 532-1110

About Us

Since 1966 Daikin-TMi has built valued partnerships with global HVAC manufacturers, architects, consulting and industry engineers, general and mechanical contractors, and building owners while delivering engineered HVAC solutions. We are committed to being a resource for the most efficient and cost-effective solutions supported by the latest industry technology exceeding our customers’ expectations.

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(636) 532-1110

Backed by Industry Leaders

Testimonials

Hear from the people and companies we’ve proudly served. From residential contractors to commercial projects and strategic partners, these stories highlight our long-standing commitment to delivering excellence, building trust, and driving results across the HVAC industry.

Working with TMi has been nothing short of a blessing for Allied Plumbing and Heating! Working together with Corey Maynard to get our customers the best that Daikin has to offer has been awesome! His team at TMi has been the easiest and best company to work with by far. TMi definitely makes it easier to give our customers what they need, and they leave us comfortable knowing that they have our back. Thank you so much for making my job easier!

Michael Miller

Allied Heating, Cooling & Plumbing in Springfield, IL

We partnered with Lennox for over 50 years. It was a great journey. Like every business that has been around for any length of time, the business decides to do things differently. That is the case with Lennox. We have been searching for years for a line of equipment that is distributed by a reputable company that has an excellent representative with a vast knowledge of the industry and really understands customer service to the high level we deliver to our customers. In addition, we want a distributor who has the items in stock, can provide excellent technical support, and provides top-notch training. Daikin-TMI checks all of those boxes so far. I have known Mike Mascia since the days when he was part of the local Lennox team. He was awesome then and that has not changed. Mike understands the industry, our local market, and the very high expectations Al-Don IAQ expects. In addition, I know Mike would only be a part of a team/organization that can and would deliver to meet the needs of the challenges we face today and the future. Daikin-TMI provides the quality of equipment we need to serve our customers along with good technical support and training. We have enjoyed the journey we have experienced with Mike and Daikin-TMI.

Jeff Miller

Owner of Al-Don Heating and Cooling in St. Louis, MO

Our relationship with Thermal Mechanics goes back nearly 25 years, and during that time they have consistently delivered strong products and reliable support. For the past 10+ years, I?ve had the pleasure of working closely with Dan Rettenmaier, and he has become one of the best equipment reps I?ve worked with in my career. Dan brings a rare mix of technical expertise, responsiveness, and problem-solving that makes him an indispensable resource. He regularly goes above and beyond his role, stepping in to help with whatever our business needs, and we know we can always count on him to get issues resolved quickly. With Dan leading the way and backed by the Thermal Mechanics team, we have a partner who not only provides excellent products but also the service and commitment that make a real difference to our success.

Benjamin Vacca

CEO, National Design Build Services in St. Louis, MO

Dakin TMI has consistently proven to be a reliable and responsive vendor for WWT. Their team demonstrates an exceptional level of professionalism, technical expertise, and attention to detail across every phase of our partnership. From timely deliveries to proactive communication, Dakin TMI goes above and beyond to ensure that our needs are met?often before we even articulate them. Their commitment to quality and customer service makes them a valuable extension of our own team, and we look forward to continuing our collaboration for years to come.

Bill Hoelzer

Lead Critical Facilities Engineer at World Wide Technology

Partnering with TMI/Daikin as our distributor has been one of the most rewarding decisions we’ve made at Lakebrink Heating & Air Conditioning. The entire team is made up of wonderful people who truly care about our success. Over the years, we’ve built strong friendships with our territory managers — relationships that go far beyond just business. The support from their marketing department has been exceptional. Whether it’s co-branding materials, seasonal campaigns, or creative advice, they’re always ready to help us grow. And when it comes to technical or product issues, the service support team is consistently reliable, responsive, and knowledgeable. We value this partnership not just for the products and services they offer, but for the people behind it who genuinely want to see us thrive!!

Allen Eaker

Owner of Lakebrink Heating and Cooling in Union, MO

At Top Notch Heating, Cooling, and Plumbing, we pride ourselves on delivering quality service and trusted solutions to our customers — and working with Daikin/TMI has elevated our ability to do just that. Their innovative product line, strong dealer support, and commitment to excellence make them an invaluable partner. We especially want to recognize Matt Brewer, our territory manager, whose dedication, responsiveness, and deep industry knowledge have made a real impact on our success. Matt doesn’t just support us — he works alongside us, offering timely solutions, insightful training, and a personal touch that makes all the difference. With Matt and the Daikin/TMI team behind us, we feel confident and equipped to grow stronger every day. It’s more than just a partnership — it’s a relationship built on trust, support, and shared goals. That’s why we love working with Daikin/TMI.

Kim Meyers

Owner of Top Notch Heating, Cooling, Plumbing in Lenexa, KS

Training & Support

At Daikin TMI, we believe that training is the foundation of excellence. That’s why we’ve built cutting-edge training centers in St. Louis and Kansas City, along with a mobile Daikin Roadshow Trailer, to bring real-world, hands-on HVAC education directly to you. From mastering Daikin Comfort systems to earning valuable continuing education (CE) credits, our training programs are designed to elevate your team’s technical skills and confidence in the field. Whether you're looking to sharpen your team’s edge or maintain certifications, our sessions are built for results.

Our Trainings

(636) 532-1110

Complete HVAC Partnership,
Built Around You

At Daikin TMI, we deliver more than products—we deliver end-to-end HVAC solutions designed to help your business thrive. Whether you're launching a new project, expanding your service offerings, or simply keeping your systems running smoothly, our team is here to support you with:

TAILORED SOLUTIONS

Get the right HVAC configuration for your unique needs with flexible, scalable options built for performance.

ADVANCED TRAINING PROGRAMS

Strengthen your workforce with expert-led education designed to fit your schedule and grow your team’s capabilities.

SUPPLY & MAINTENANCE SERVICES

Count on OEM-certified parts, smart building control integrations, and responsive support to keep operations efficient and reliable.

ESSENTIAL HVAC SUPPORT

With access to installation expertise, full parts supply, ongoing maintenance, and 24/7 emergency support, we help you stay up and running—day or night.

Comprehensive HVAC Solutions

Expert Installation Support & Training

Full Access to Parts Supply

24/7 Emergency Service and Technical Support

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Watch. Learn. Lead.

Explore our video library for expert HVAC insights, product demos, training sessions, and
tips to maximize system performance.

Daikin FIT: Simply FIT All Comfort

Simply FIT. The Daikin FIT sleek, quiet, all-electric HVAC system is designed to keep homes comfortable in every season. From summer heat to winter chill, the Daikin FIT delivers consistent performance with energy efficiency and quiet operation.

Sustainability Series Season 2 Episode 6 | Full Episode

In this episode of The Sustainability Series, Dave and Jenny Marrs show Marc Bellanger, Vice President of Marketing Communications for Daikin Comfort Technologies North America, their renovation of a 1905 bank building into the Marrs Mercantile.

Behind Every Moment - Perfecting The Air We Share

Every moment, every breath, and every memory is shaped by the air around us. Daikin has spent over 100 years focused on perfecting the air we share through innovation and sustainability, creating environments where people can live, work, and celebrate.

Everything - Perfecting The Air We Share

The air we share is all around us, shaping every moment of our lives. At Daikin, we put everything into perfecting it, with a relentless focus on innovation and sustainability.

The Daikin Difference | Perfecting The Air We Share

At Daikin, comfort meets innovation. Discover how our advanced technologies and customer-centric approach are revolutionizing indoor climate control, offering superior comfort and efficiency for today and the future.

Year-Round Comfort | Discover Daikin's Modern Inverter Heat Pump

Explore the efficiency of Daikin Inverter Heat Pumps. Explore how Daikin's technology adapts to your needs, keeping you warm in winter and cool in summer maximizing energy efficiency.

Daikin Ductless Systems

With available wall-mounted, concealed slim-duct, ceiling cassette, and floor-mounted indoor options, Daikin Ductless Systems offer multiple indoor unit styles to meet all home comfort needs.

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