Business Details
50+ Years
experience
Emergency
services
Your Trusted HVAC Partner Since 1947
Since 1947, Sure-Fire Heating & AC Heating & AC has been dedicated to providing top-quality HVAC solutions for residential and commercial clients across Wisconsin. Founded by Emil Malesevich, our company was built on the principle of delivering superior heating and cooling systems tailored to each client's unique needs. With over 75 years of experience, we combine advanced engineering expertise with personalized service to ensure optimal comfort and energy efficiency. Our team of factory-trained technicians undergoes continuous monthly training to stay at the forefront of industry advancements, ensuring reliable installations and prompt emergency repairs. We maintain a comprehensive parts inventory to minimize downtime and offer 24/7 emergency service for urgent HVAC needs. Our commitment to excellence extends to our maintenance plans, which help prevent costly breakdowns and extend equipment lifespan.As a Lennox Premier Dealer, we exclusively install high-efficiency systems that combine cutting-edge technology with proven reliability. Through initiatives like our Feel the Love program, we demonstrate our dedication to community support by providing free furnace replacements to deserving families. Our 18,000-square-foot facility in Horicon, WI, serves as the hub for our 35+ skilled professionals who handle everything from residential system design to large-scale commercial projects. With computer-dispatched service vehicles and a focus on proper system sizing, we guarantee solutions that meet both comfort requirements and budget constraints.
Services
Furnace Replacement
AC Installation
HVAC Repair
Commercial HVAC
Maintenance Plans
Details
- Year established: 1947
Highlights and features
- We offer 24/7 emergency HVAC service with response times under 2 hours
- Our technicians receive monthly factory-certified training on latest HVAC technology
- 75+ years of combined experience in residential and commercial HVAC systems
- Exclusive Lennox Premier Dealer with access to highest efficiency equipment
- Community-focused with Feel the Love furnace donation program since 2011
What people say
24/7 emergency service
Knowledgeable technicians
Reliable maintenance plans
Prompt response times
Quality installations
Services
Furnace Replacement
Our furnace replacement service ensures Wisconsin homeowners maintain efficient heating systems. We conduct detailed load calculations to recommend properly sized 98% efficiency furnaces that can reduce heating costs by 40-50%. Factory-trained technicians handle complete system replacements including ductwork modifications. Customers benefit from our 24/7 emergency replacement availability and financing options that make upgrades affordable while improving home comfort and energy efficiency.
AC Installation
We specialize in Lennox central air conditioning installations tailored to Wisconsin's climate. Our process includes precise load calculations to avoid oversized systems that waste energy. Technicians install quiet, energy-efficient units with proper refrigerant charging and duct sealing. Customers receive SEER rating explanations and maintenance tips during installation. Emergency replacement services ensure comfort during summer heatwaves, with financing options available for immediate installations.
HVAC Repair
Our 24/7 HVAC repair service addresses urgent heating and cooling failures across Wisconsin. Fully stocked service vehicles enable same-day repairs for most brands. Technicians diagnose issues using digital pressure gauges and combustion analyzers. Maintenance plans include seasonal tune-ups that clean coils, check refrigerant levels, and calibrate controls to prevent breakdowns while maintaining manufacturer warranties.
Commercial HVAC
We design and install custom commercial HVAC systems for Wisconsin businesses. Services include load calculations, duct fabrication, and equipment selection for new constructions or renovations. Our team handles projects from small offices to large industrial facilities, offering 24/7 emergency service and planned maintenance contracts. Commercial clients benefit from energy audits that identify efficiency improvements and cost-saving opportunities.
Maintenance Plans
Our HVAC maintenance plans provide twice-yearly system inspections and tune-ups for residential and commercial clients. Technicians clean components, check safety controls, and lubricate moving parts to optimize efficiency. Members receive priority scheduling for emergency repairs and discounts on parts. The plans help prevent unexpected breakdowns while extending equipment lifespan beyond industry averages through proactive care.
People
Casey Malesevich
President
Leading Sure-Fire Heating & AC Heating & AC since 2011, Casey brings legal expertise and third-generation HVAC industry knowledge to ensure customer-focused operations and business growth.
Ted Malesevich
Vice President/Project Manager
As LEED-certified project manager since 2016, Ted oversees commercial HVAC design-build projects ensuring sustainable solutions that meet Wisconsin's climate challenges.
Tom Schwartz
Residential Sales
With 30+ years in residential HVAC sales, Tom connects Wisconsin homeowners with customized comfort solutions while maintaining our founding commitment to quality service.
Greg Blohowiak
Commercial HVAC Designer
Leading commercial design since 2008, Greg develops efficient mechanical systems for Wisconsin businesses, combining technical expertise with practical field experience.
Rob Eberhardt
Service Manager
Managing our 24/7 service department since 2010, Rob ensures prompt resolution of HVAC emergencies while maintaining high technical standards for all service calls.
Questions
What HVAC services do you offer for Wisconsin homeowners?
We provide complete residential HVAC solutions including furnace replacement, AC installation, emergency repairs, and maintenance plans tailored to Wisconsin's climate.
Do you offer emergency HVAC service after hours?
Yes, our 24/7 emergency service responds to furnace and AC failures at any time, with technicians available 365 days a year.
Can I finance a new HVAC system purchase?
We offer convenient financing options including zero percent plans to make HVAC replacements and installations more affordable for Wisconsin residents.
What commercial HVAC services are available?
Our commercial services include system design, equipment replacement, emergency repair, and maintenance contracts for businesses across Wisconsin.
How can I improve my HVAC system's efficiency?
Regular maintenance plans, proper system sizing during installation, and upgrading to high-efficiency models like Lennox units can significantly improve HVAC efficiency.
Do you service all HVAC equipment brands?
Our technicians service most major brands and maintain parts inventory for common equipment, though we specialize in Lennox system installations.
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