At Tri-City Heating & Air Conditioning, we’re proud to provide reliable, high-quality HVAC services to the Longmont community. From sweltering summers to icy winter days, our expert team is committed to keeping your home or business comfortable year-round. With decades of hands-on experience, we combine trusted workmanship with exceptional customer service to deliver results you can count on.
Comprehensive Air Conditioning Services
Longmont’s warm summers demand efficient cooling systems. Our skilled technicians offer a range of air conditioning services, including installation, repair, and maintenance. Whether you’re upgrading an outdated unit or dealing with an unexpected breakdown, our technicians respond quickly and work with care to restore your comfort and improve your system’s performance and efficiency.


Reliable Heating Solutions
Colorado winters can be harsh, but Tri-City has you covered. When temperatures drop, a dependable heating system is essential. We specialize in heating installation and repair, providing solutions that keep your space warm and safe. Our team is equipped to handle various heating systems, ensuring efficient operation during Longmont’s chilly winters.
Precision Seasonal Tune-Ups for Longmont Homes
Maintaining a comfortable home in Longmont requires a cooling and heating system that can handle rapid elevation-related weather shifts. Our comprehensive northern Colorado HVAC maintenance plans focus on optimizing airflow and verifying electrical safety to prevent unexpected mid-season failures. By cleaning vital components and calibrating your thermostat, we ensure your system runs at peak efficiency while lowering your monthly utility costs.
High-Efficiency Heating and Cooling Upgrades
If your current system is struggling to keep up with Longmont’s temperature swings, it may be time for a modern upgrade. We specialize in installing state-of-the-art northern Colorado HVAC technology, including variable-speed blowers and multi-stage compressors that adapt to your home’s real-time needs. These systems provide superior dehumidification in the summer and consistent, whisper-quiet warmth during the harshest winter nights.
Indoor Air Quality Enhancement
Comfort isn’t just about temperature — it’s also about the air you breathe. Indoor air quality significantly impacts health and comfort. We offer services to improve the air you breathe, including air purifiers, humidifiers, and ventilation solutions. Our goal is to create a healthier indoor environment for you and your family.

Expert Ductwork Sealing and Air Distribution
Even the best furnace or air conditioner will underperform if your ductwork is leaking or poorly designed. As local experts in northern Colorado HVAC, we perform detailed pressure testing to identify energy loss within your ventilation system. By sealing gaps and balancing airflow, we ensure every room in your Longmont home stays perfectly conditioned. Contact us today to schedule a professional airflow performance evaluation!

Why Choose Tri-City Heating & Air Conditioning?
- Local Expertise: Deep understanding of Longmont’s climate and HVAC needs.
- Customer Satisfaction: Dedicated to providing exceptional service and ensuring client happiness.
- 24/7 Availability: Ready to assist you anytime with emergency services.
- Certified Technicians: Experienced professionals committed to quality workmanship.
Schedule Your Service Today
Experience the Tri-City difference in Longmont. Whether you need a new installation, routine maintenance, or urgent repairs, we’re here to help. Call us at 970-493-0126 or visit our contact page to schedule a service.







