HVAC & Water Heater Service in St. Louis | Jenko Mechanical

In the St. Louis area, we frequently respond to two main issues. First are AC capacitor failures, especially during our intense summer heat waves, which can cause a complete system shutdown. Second, we see many calls related to aging HVAC equipment that finally gives out during extreme weather. Our 24/7 emergency service is tailored for these exact situations to get your cooling or heating restored quickly.

Yes, we service and repair all brands of heating, air conditioning, and water heater equipment. Our technicians are trained to work on a wide range of systems, from common manufacturers to specialized models. This means you can call us with confidence regardless of the equipment in your home, and we'll have the knowledge and parts access to diagnose and fix the issue properly.

Regular maintenance is key to preventing costly breakdowns, improving energy efficiency, and extending the lifespan of your system. For St. Louis homeowners, a pre-season tune-up can catch small issues—like a weakening capacitor or dirty coils—before they lead to a failure on the hottest or coldest day. Our maintenance service helps ensure your system runs reliably year-round and can often identify when older equipment may need to be planned for replacement.