Business Details
39 Years
experience
Emergency
services
Your Trusted HVAC Partner in Delafield, WI
Grenz Service has been serving Waukesha and Jefferson County since 1987, delivering dependable heating and cooling solutions for residential and commercial clients. As a family-owned business, we prioritize integrity and personalized service, led by founder Jim Grenz Sr. and his son Jim Grenz Jr. Our team specializes in HVAC repair, maintenance, and installation, including air conditioners, furnaces, heat pumps, and gas fireplaces. We are certified Trane dealers committed to rigorous training and staying at the forefront of HVAC technology. Our technicians combine decades of experience with attention to detail, treating every property with care.We emphasize transparency, clear communication, and honest pricing to build lasting trust. Our mission is to provide top-quality service that ensures year-round comfort while maintaining a customer-centric approach. With a proven track record of reliability and professionalism, we treat our clients as we would our own family, ensuring timely service and meticulous workmanship. Our commitment to excellence has earned us a reputation as a trusted HVAC provider in the region.
Services
HVAC Installation
Furnace Repair
AC Maintenance
Gas Fireplace Services
Commercial Refrigeration
Details
- Year established: 1987
Highlights and features
- Experienced technicians with decades of HVAC expertise
- Comprehensive services for residential and commercial systems
- Timely and reliable emergency repair availability
- Transparent pricing and honest communication
- Flexible financing options through Wells Fargo
Associations and certifications
- Trane
What people say
Great service
Very professional
Prompt and reliable
Highly recommend
Knowledgeable technicians
Services
HVAC Installation
We specialize in installing high-efficiency heating and cooling systems tailored to your home or business needs. Our certified technicians ensure proper sizing and configuration for optimal performance. We work with premium brands like Trane to deliver durable, energy-efficient solutions that enhance comfort and reduce utility costs.
Furnace Repair
Our team quickly diagnoses and repairs furnace issues to restore warmth during cold months. We service all makes and models, using advanced diagnostics to identify problems like ignition failures or airflow issues. Emergency repairs are available 24/7 to minimize downtime.
AC Maintenance
Regular maintenance extends your AC system's lifespan and improves efficiency. Our technicians clean coils, check refrigerant levels, and inspect electrical components to ensure peak performance. Preventive care reduces breakdowns and maintains indoor comfort.
Gas Fireplace Services
We provide comprehensive gas fireplace maintenance, repair, and installation services. Our experts ensure safe operation, clean burners, and proper ventilation. Regular servicing enhances efficiency and prolongs the life of your fireplace while maintaining aesthetic appeal.
Commercial Refrigeration
We install and service commercial refrigeration units for restaurants and businesses. Our solutions include walk-in coolers, ice machines, and back bars. We prioritize temperature control and energy efficiency to protect inventory and reduce operational costs.
Questions
What HVAC services do you offer?
We provide installation, repair, and maintenance for heating systems, air conditioners, heat pumps, gas fireplaces, and commercial refrigeration equipment.
Do you offer emergency HVAC repairs?
Yes, we provide 24/7 emergency repair services for urgent heating and cooling issues.
Are financing options available?
Yes, we offer flexible financing through Wells Fargo for HVAC system replacements and upgrades.
What areas do you serve?
We serve Delafield, Waukesha, Jefferson County, and surrounding areas in Wisconsin.
How can I schedule an appointment?
Call us at 262-646-3880 or visit our website to schedule service online.
Why choose Grenz Service Company?
We combine 35+ years of experience, certified technicians, transparent pricing, and a customer-first approach to ensure reliable HVAC solutions.
Reviews (1)
Tammi Vetrano
May 27, 2018
Report
Excellent service! Professional, did the job in a very timely manner! I would recommend their service to anyone!
