Commercial Heating and Cooling Services for Businesses in St. Louis

Running a business is hard enough; you shouldn’t have to worry about your heating or cooling systems keeping up. Your heating and cooling systems are essential to your everyday operations, regardless of whether you run a retail establishment or run a small office. At Citywide Heating & Cooling, we deliver fast, professional, and energy-efficient commercial HVAC services in St. Louis, MO, and surrounding areas.

Need a technician today? Call (314) 774-8000 or schedule a free estimate for installation.

Why a Reliable Commercial HVAC System Matters

Consistent indoor comfort is essential for both your staff and clients. In addition to causing discomfort, a malfunctioning heating or cooling system may result in health hazards, product loss, complaints from tenants, and even property damage. Additionally, every minute matters when systems malfunction.

We are aware of the particular requirements of small business enterprises. From complete heating and cooling systems to ductless mini-splits and rooftop units, our staff completes precise work with the least amount of disturbance to your company.

Our Services Include:

Installation Services and System Replacements

Is the equipment in your building antiquated or too small and no longer functional? Commercial HVAC systems that are outdated or mismatched waste energy, increase utility bills, and break down unexpectedly. That may result in lost revenue, downtime, and frustrated customers and staff.

Citywide Heating & Cooling offers system installation for commercial spaces across St. Louis and surrounding counties. We install energy-efficient rooftop units, split systems, ductless setups, and more. Our team will assess your property size, zoning requirements, and air distribution needs to provide the right solution—complete with warranties and financing options.

Commercial Heating and Cooling Repairs Done Right the First Time

Is your heating or cooling system making strange noises, blowing weak air, or shutting off unexpectedly? HVAC breakdowns during business hours or after-hours emergencies can cost you time and money, and finding a company that responds quickly and gets the job done right isn’t always easy.

We’re trained in servicing both residential-grade equipment and light commercial units. You’ll get fast diagnostics and transparent pricing. We also offer emergency weekend support for urgent repairs.

Preventive Maintenance for Long-Term System Health

Are you skipping regular checkups for your building’s HVAC system? Neglected heating and cooling systems become less efficient, cost more to operate, and are more likely to malfunction during periods of high demand, such as a winter cold snap.

Protect your system with our commercial maintenance program. We offer seasonal checkups that include filter changes, performance testing, and safety checks. Our members enjoy priority scheduling and fewer emergencies throughout the year. It’s an investment that pays off in performance, reliability, and peace of mind.

Emergency Commercial HVAC Services


What happens when your system fails after hours or over the weekend? In commercial buildings, waiting until Monday isn’t always an option during extreme temperatures. Our team provides weekend and emergency service options to get your system back online fast. Whether it’s a rooftop unit that suddenly stopped or a zone that won’t cool, our trucks are stocked and ready for on-site diagnostics. Call (314) 774-8000 now to request a visit from our experts!

You can count on us for quality heating and cooling expertise – call now on (314) 774-8000.