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50+ Years
experience
Emergency
services
Trusted HVAC, Plumbing & Electrical Services in Lake Geneva
For over six decades, Peck & Weis Heating, Cooling, Plumbing, Electric has served Lake Geneva, WI, and surrounding areas with comprehensive home services. Established in 1965, our team provides heating, cooling, plumbing, and electrical solutions under one roof, combining technical expertise with personalized care. As a multi-year recipient of the Best of Walworth County award, we maintain industry certifications and ongoing technician training through partnerships with organizations like PHCC and NECA.

Our NATE-certified HVAC specialists deliver reliable repairs, installations, and maintenance while sustaining 24/7 emergency response capabilities. We prioritize community engagement through local sponsorships and volunteer programs, including partnerships with the Ronald McDonald House. Continuous operation since 1965 demonstrates our commitment to quality workmanship, transparent communication, and customer satisfaction.
Services
HVAC Repair Plumbing Services Electrical Repairs Generator Installation Emergency Services Ductless Mini-Splits EV Charging Stations Furnace Maintenance AC Installation Water Heater Repair
Details
  • Year established: 1965
Highlights and features
  • We offer 60+ years of experience serving Lake Geneva
  • Our team is NATE-certified for HVAC excellence
  • We provide 24/7 emergency service with rapid response
  • Multi-year winner of Best of Walworth County awards
  • Active community involvement through local sponsorships
Associations and certifications
  • NATE Certified
  • PHCC
  • NECA
What people say
Excellent work Showed up on time Professional staff Resolved quickly Award-winning service
Services
HVAC Repair
We offer comprehensive HVAC repair services for furnaces, air conditioners, heat pumps, and ductless systems. Our NATE-certified technicians diagnose and resolve issues quickly, using advanced tools to minimize system downtime while maintaining energy efficiency. With 24/7 emergency availability, we ensure comfortable indoor environments year-round.
Plumbing Services
Our licensed plumbers handle everything from leak detection and pipe repair to water heater installation and slab leak solutions. We specialize in both residential and commercial plumbing systems, offering preventive maintenance programs to avoid costly emergencies while ensuring code compliance during all installations.
Electrical Upgrades
We provide electrical panel upgrades, whole-home generator installations, and EV charging station setups. Our NECA-certified electricians perform safety inspections and code updates to protect your property, with emergency services available for urgent power issues affecting daily operations.
Generator Installation
We install and maintain standby generators, including Kohler models, to protect against power outages. Our technicians assess power requirements to recommend appropriate system sizes, ensuring reliable operation during Wisconsin's extreme weather conditions while offering maintenance programs for continued performance.
Ductless Mini-Splits
We offer ductless mini-split installation and repair services for targeted temperature control. These energy-efficient systems provide zoned heating and cooling without traditional ductwork, ideal for home additions or spaces requiring independent climate management with minimal structural modification.
Questions
Do you offer 24/7 emergency services?
Yes, we provide 24/7 emergency HVAC, plumbing, and electrical services with rapid response times even during extreme weather conditions.
What areas do you service?
We primarily serve Lake Geneva, WI and surrounding areas within Walworth County, providing both residential and commercial services.
Are your technicians certified?
Yes, we employ NATE-certified HVAC technicians, licensed electricians, and qualified plumbers who maintain ongoing industry training and certifications.
Do you offer maintenance plans?
Yes, we offer comprehensive HVAC and plumbing maintenance programs to prevent emergencies and extend equipment lifespan with regular professional inspections.
What payment options are available?
We accept major credit cards, checks, and cash payments. Financing options are available for larger projects and equipment installations.
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Reviews (7)
Griffin McLaughlin
May 05, 2022 Report
Peck and Weis attention to detail, outstanding customer service, and professional staff are just some of the attributes that makes this the go-to heating, cooling, plumbing, and HVAC companies in Southeast Wisconsin!
Sharon Woj
Mar 08, 2022 Report
We had a power outage for over 13 hrs which caused our on off switch to our electric water heater to burn out. I called Alliant Electric the woman on the phone told me to call an electrician! She said if it's Alliants fault they will reimburse me. Havent heard back from Alliant yet. I called Peck and Weiss Chad came out he was very professional it was a Saturday. Alliant electric guy worked from outside Chad inside.

The outside box would not turn off when switch was off. I get a bill for over $800 that said 4 and a half hrs labor for closing a burned out on off box and relocating wire to fuse box right next to on off switch! Chad left for awhile to go get a part! I was charged for the time he was gone! Ridiculous this is now 1/2019 No contact from Peck and Weiss. I will never use them againAlliant Electric did reimburse us but Peck and Weiss prices Outrageous!
Marlene Stevens
Jun 28, 2021 Report
Cory was very professionalism, courteous and knowledgeable for a young man. Any questions that I had, he was more than happy to take the time to explain them to me. Thank you for your service! Service: AC maintenance
W. P.
Jun 18, 2021 Report
I am writing this review to make sure I recognize the great work Peck and Weis has done for me with HVAC and Electrical services. Peck and Weis has assisted us with new construction commercial and with service at our residence. I have found them to be very responsive even during this unprecedented time of home sales expansion and building. More importantly to me, they have acted with integrity and squared away issues that weren't my responsibility.

Their fees for other services have been reasonable and I like that the Customer Service staff clearly gives you the option of immediate service which may require over time rates or they work to get you on the schedule as soon as possible. Thanks to everyone at Peck and Weis for working as a team to provide great service to this community.
L. Pederson
Feb 27, 2021 Report
We used Peck and Weiss this year for two very challenging and complex jobs at our home--one involving the A/C, and one involving the hot water heating systems. Both times, the Servicemen went entirely "above and beyond" to solve the problem -- and didn't present us with a massive bill at the end for any additional time it took, or for some of the smaller, add-on things they did as part of the project. Highly recommmended!
Michael Luedke
Feb 24, 2021 Report
We had Master Services tell us that we would need an entirely new Air Conditioning which was quoted at nearly $5,000 dollars. We called Peck & Weis for a second opinion. They assured us there was nothing wrong with the system and just needed a recharge. Thank you Peck & Weis for saving our family thousands and for your professionalism and knowledge of everything! When the time comes and we do need a new A/C system, we will definitely be calling you!
Miles Ashton
Feb 23, 2021 Report
Mike was extremely knowledgeable and polite. He was flexible and willing to find solutions to get our furnace back up and running. Thanks! Service: Heating system repair