Business Details
50+ Years
experience
Emergency
services
Trusted HVAC Services in Sheridan, Wyoming
Established in 1972, KOSMA Heating & Air Conditioning has served the Sheridan, Wyoming community for over five decades. As a family-owned business led by Joseph Kosma Sr., Joseph Kosma Jr., and Christina Thompson, we combine generational expertise with industry certifications including WAM Master HVAC Technician, ACCA, and EPA A/C & Refrigeration credentials. Our team delivers comprehensive heating, cooling, and fireplace solutions for residential and commercial clients, emphasizing personalized service and technical excellence. We operate from our Main Street location with a commitment to prompt emergency response, offering 24-hour service during critical situations. Our partnership with leading manufacturers like Trane and Honeywell ensures access to reliable equipment backed by expert installation and support.With over 80 combined years of experience, we maintain a focus on customer satisfaction through transparent communication and quality workmanship. Our services include system repairs, maintenance programs, and tailored installations designed to meet individual comfort needs. As an independently owned Trane dealer, we prioritize product knowledge and technical proficiency to deliver lasting solutions. Our facility in Sheridan serves as both a service hub and showroom for heating, cooling, and fireplace products. We maintain full licensing, insurance, and bonding to guarantee professional accountability. Customer trust remains our foundation, built through consistent service delivery and community engagement since our founding.
Services
Heating Repairs
Heating Maintenance
Heating Installation
Air Conditioning Repairs
Air Conditioning Maintenance
Air Conditioning Installation
Fireplace Repairs
Fireplace Installation
Emergency HVAC Service
Product Sales
Details
- Year established: 1972
Highlights and features
- We offer 50+ years of combined HVAC experience in Sheridan's climate
- Our technicians hold WAM Master, ACCA, and EPA certifications
- 24-hour emergency service available for urgent heating/cooling needs
- Family-owned business with personalized customer service approach
- Financing options available for residential HVAC upgrades
Associations and certifications
- WAM Certified
- ACCA Certified
- EPA Certified
What people say
Quick, professional
Extremely kind
Great staff
Prompt and professional
Went over and beyond
Services
Heating Repairs
Our certified technicians provide prompt heating system repairs for furnaces, heat pumps, and boilers. With specialized diagnostic tools and 50+ years of combined experience, we resolve issues like thermostat malfunctions and heat exchanger failures. Emergency service available 24/7 for critical heating breakdowns during Wyoming winters.
Air Conditioning Installation
We offer professional AC installation for central systems, ductless mini-splits, and heat pumps. Our technicians assess your property's cooling needs and recommend energy-efficient models from trusted brands like Trane. Complete installation includes system configuration, refrigerant charging, and performance testing for optimal summer comfort.
Fireplace Services
Our fireplace experts handle gas and wood-burning unit repairs, chimney maintenance, and new installations. Services include ignition system diagnostics, venting repairs, and EPA-certified cleanings. We install Town & Country and Heat & Glo models with custom design options for residential properties in Sheridan.
Preventive Maintenance
Scheduled maintenance plans extend equipment lifespan and improve efficiency. Our two-phase HVAC tune-ups include component inspections, lubrication, calibration, and safety checks. Annual fireplace maintenance covers chimney inspections and combustion efficiency testing to ensure safe operation during heating seasons.
Emergency HVAC Service
Critical heating and cooling failures receive priority response after hours. Our on-call technicians carry essential replacement parts for common system failures. Emergency service covers furnace shutdowns, AC compressor failures, and other urgent issues threatening comfort or safety in residential and commercial spaces.
People
Joseph Kosma Sr.
Co-Owner
With over 50 years in the HVAC industry, Joseph established the company in 1972. His expertise in Wyoming climate challenges shapes our service approach. He maintains active involvement in technical training and quality control.
Joseph Kosma Jr.
Co-Owner
Continuing the family legacy, Joseph Jr. oversees daily operations and customer relations. His ACCA-certified technical skills ensure modern HVAC solutions meet traditional service standards. He manages technician certification programs and equipment selection.
Christina Thompson
Co-Owner
Christina directs administrative operations and client communications. With 20+ years in the business, she ensures efficient service scheduling and financing options. She maintains key manufacturer partnerships for product support and warranties.
Questions
What HVAC services do you offer?
We provide complete heating, air conditioning, and fireplace services including repairs, maintenance, installations, and 24-hour emergency support for residential and commercial clients.
Are you available for emergency HVAC repairs?
Yes, our team offers 24/7 emergency service for critical heating and cooling system failures. Call 307-674-9070 for immediate assistance during business hours or after-hours emergencies.
What brands do you work with?
As an independent Trane dealer, we service all major HVAC brands. We also carry Honeywell controls, Mitsubishi ductless systems, and Town & Country fireplaces with manufacturer-backed support.
Do you offer financing options?
Yes, we provide financing programs for new HVAC system installations. Our staff can explain available terms and help qualify customers for equipment upgrades during their service visit.
How can I schedule maintenance?
Schedule preventive maintenance by calling our office at 307-674-9070 during regular business hours. We recommend annual HVAC tune-ups and chimney inspections to maintain system efficiency.