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45 Years
experience
Emergency
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Trusted HVAC Services in Elkhorn, WI
Westenn Heating & Air Conditioning has been a trusted provider of HVAC solutions for over 50 years, serving residential and commercial clients in Walworth County and surrounding areas. Founded in 1981, our mission centers on delivering exceptional value through professional workmanship and integrity. Our team of certified technicians undergoes continuous training to ensure expertise in the latest heating, ventilation, and air conditioning technologies. Under the leadership of co-owners Ray Alberth and Randy Smith since 2020, we maintain a legacy of 100% customer satisfaction by prioritizing honest service and quality installations. We specialize in system design, emergency repairs, and indoor air quality solutions, using equipment from trusted brands while servicing all major HVAC systems.

Our commitment to transparency includes no hidden costs, with free consultations and estimates available for new installations or replacements. For commercial clients, we offer engineering-driven, code-compliant systems tailored to specific operational needs. Residential customers benefit from energy-efficient options like radiant heating, ductless mini-splits, and smart zoning systems. Our 24/7 emergency service ensures rapid response with a fleet of service vehicles ready to address critical HVAC failures. This combination of technical expertise, community focus, and customer-first policies has made us a generational choice for HVAC needs.
Services
HVAC Installation Emergency Repairs Indoor Air Quality Boiler Services Radiant Heating Ductless Mini-Splits Commercial HVAC System Maintenance Zoning Solutions
Details
  • Year established: 1981
Highlights and features
  • We have over 50 years of combined experience in residential and commercial HVAC services.
  • Our team provides 24/7 emergency response with fully equipped service vehicles.
  • Certified technicians complete ongoing training for expertise in all major HVAC systems.
  • We offer free consultations and transparent pricing with no hidden fees.
  • Serving Walworth County and surrounding areas with generational customer relationships.
What people say
Outstanding technician Superb craftsmanship Price very reasonable Fast response Highly recommend
Services
HVAC Installation
We design and install custom heating, ventilation, and air conditioning systems for residential and commercial properties. Our engineers select optimal equipment from trusted brands while ensuring proper ductwork sizing and zoning. Services include furnace, boiler, mini-split, and heat pump installations with energy efficiency consultations.
Emergency Repairs
Our 24/7 emergency team responds to critical HVAC failures with rapid diagnostics and repairs. Technicians carry common replacement parts and use computerized monitoring for pre-emptive issue detection in commercial systems. Service vehicles are strategically located for quick response across Walworth County.
Indoor Air Quality
We improve air quality through advanced filtration, UV germicidal treatment, and VOC elimination systems. Solutions include MERV 13 filters, Healthy Home Trio purification units, and humidity control systems that reduce allergens, bacteria, and odors in residential environments.
Commercial HVAC
Full-service commercial HVAC solutions include system engineering, code-compliant installations, and preventive maintenance contracts. We specialize in large-scale boiler systems, radiant heating for industrial spaces, and smart zoning technologies that reduce operational costs for businesses.
System Maintenance
Seasonal maintenance plans extend equipment lifespan through comprehensive inspections, component lubrication, and efficiency testing. Our technicians check refrigerant levels, electrical connections, and combustion systems while providing performance optimization recommendations for both residential and commercial clients.
People
Ray Alberth
Co-Owner / Operations Leader
Ray Alberth co-owns Westenn with 25+ years of HVAC experience, having started his career at the company in 1995. He oversees daily operations and technical training programs while maintaining hands-on involvement in complex installations and customer relations.
Randy Smith
Co-Owner
Randy Smith partners with Ray Alberth in ownership, focusing on business development and strategic growth initiatives. With extensive industry knowledge, he ensures the company maintains its reputation for quality service while expanding service capabilities.
Questions
What HVAC services do you offer?
We provide full-service HVAC solutions including installation, repair, and maintenance for residential and commercial heating, cooling, and air quality systems across Walworth County.
Do you offer emergency HVAC service?
Yes, our 24/7 emergency service responds to critical HVAC failures with rapid diagnostics and repairs using fully equipped service vehicles.
What areas do you serve?
We primarily serve Walworth County including Elkhorn, Lake Geneva, East Troy, and Delavan with HVAC installation, repair, and maintenance services.
Are your technicians certified?
All our technicians complete ongoing manufacturer training and hold industry certifications for working with various HVAC systems and refrigerants.
Do you install smart thermostats?
Yes, we install and program smart thermostats as part of our HVAC system upgrades to improve energy efficiency and user control.
What brands do you work with?
We install Armstrong Air, Crown Boilers, Honeywell, LG, and Santa Fe equipment while servicing all major HVAC brands for residential and commercial clients.