Westenn Heating & Air Conditioning

We design and install custom heating, ventilation, and air conditioning systems for residential and commercial properties. Our engineers ensure proper sizing and zoning for maximum efficiency. Backed by manufacturer warranties and 50+ years of industry experience, we deliver durable solutions using top brands like Armstrong Air and Honeywell.

Our certified technicians provide prompt diagnosis and repair for all AC systems, including mini-splits and central units. With 24/7 emergency service and same-day appointments, we minimize downtime during peak summer months. Regular maintenance plans extend equipment lifespan and improve energy efficiency by up to 30%.

We install advanced air filtration and purification systems from Field Controls and Honeywell to eliminate allergens, VOCs, and pathogens. Solutions include UV germicidal lights, MERV 13 filters, and dehumidifiers. These systems reduce respiratory risks and improve comfort for homes and businesses in humid climates.

Our 24/7 emergency response team handles urgent HVAC failures with rapid dispatch and after-hours availability. Equipped with diagnostic tools and replacement parts, technicians resolve critical issues like furnace failures and AC breakdowns within hours. Commercial clients receive priority scheduling for system-critical repairs.

We implement LG Zoning Systems to create customized temperature zones in homes and offices. Single and multi-room solutions allow independent climate control for different areas, reducing energy waste. Our engineers optimize ductwork and thermostat placement to ensure balanced heating and cooling distribution.

Ray Alberth brings 25+ years of HVAC expertise to Westenn, having started his career with the company over two decades ago. He oversees daily operations and technical training programs.

Randy Smith co-owns Westenn with Ray Alberth, focusing on business development and client relations. His leadership ensures consistent delivery of the company's core values.

We provide full-service HVAC solutions including installation, repair, maintenance, indoor air quality systems, and 24/7 emergency service for residential and commercial clients.

Yes, we service all major HVAC brands including Armstrong Air, Honeywell, LG, and Crown Boilers, regardless of where they were purchased.

Currently, we do not offer in-house financing but can provide documentation to assist with third-party financing applications for major projects.

We serve Walworth County, East Troy, Delavan, Lake Geneva, and surrounding Wisconsin areas with both residential and commercial HVAC solutions.

Our 24/7 emergency team typically responds within 2 hours of contact, with same-day resolution for most HVAC system failures.

Yes, we offer annual and bi-annual maintenance agreements that include priority scheduling, discounted repairs, and system performance guarantees.

I had a great experience with Westenn Mechanical! I needed a Spring clean and check and wanted to find out about improving the air quality in my home. I have allergies/asthma so I really need good filtration, and with fireplaces in the neighborhood it's a problem for me! My air conditioner also needed to be replaced (found out that it was a 1989). Shawn came to do the cleaning and discussed HEPA filters and took measurements and pictures of existing furnace and air conditioner. Ray contacted me with the specifics and pricing, and got me scheduled in pretty quickly! Shawn and Jeff arrived (early) and did a great job with the installation and instructions on new thermostat.

They totally cleaned up after themselves, which was great! It should be a given, but not everyone does this anymore! By the way, there was a fireplace burning in the neighborhood last night and my new HEPA filter totally kept the smoke smell out of my home! I would totally recommend this company to anyone!