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21 Years
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Emergency
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Your Trusted HVAC and Plumbing Experts in New London, WI
Heise Heating & Air Conditioning has been serving the New London area since 2005, providing expert heating, cooling, and plumbing solutions for residential, agricultural, and small commercial applications. Our family-owned business is built on decades of combined experience, with Kevin Heise bringing over 30 years of expertise in HVAC systems and Dan Heise contributing specialized knowledge since joining the trade in 2009. We prioritize exceptional customer service, offering 24/7 emergency support and personalized solutions tailored to each client's needs. Our team holds multiple industry certifications, including Master Plumber and HVAC Qualifier licenses, ensuring technical excellence across all projects. From preventative maintenance to full system installations, we combine cutting-edge technology with time-tested craftsmanship to deliver reliable, energy-efficient systems.

Our commitment to community is reflected in our local focus, having relocated to a central New London location in 2017 to better serve our neighbors. We maintain transparency in all operations, offering free estimates and clear communication throughout every project. Customer satisfaction remains our highest priority, as evidenced by our track record of repeat clients and referrals. Our technical capabilities extend to complex systems like zoned heating, geothermal installations, and custom control solutions, supported by continuous investment in staff training and equipment. This dedication to quality and service has established us as a trusted partner for both routine maintenance and emergency repairs in the region.
Services
HVAC Installation Plumbing Repairs Emergency Service Preventative Maintenance Geothermal Systems
Details
  • Year established: 2005
Highlights and features
  • Family-owned since 2005 with 30+ years of combined HVAC expertise
  • 24/7 emergency service available for urgent heating/cooling needs
  • Licensed Master Plumber and HVAC Qualifier on staff
  • Free estimates for remodeling and new construction projects
  • Specialized in energy-efficient zoned heating and geothermal systems
What people say
Prompt, courteous, friendly Fast and efficient Highly recommend Excellent company Professional service
Services
HVAC Installation
We install high-efficiency heating, air conditioning, and geothermal systems for residential and commercial properties. Our technicians specialize in zoned heating solutions and modern boiler systems that integrate with air handlers for year-round comfort. All installations follow strict quality standards to ensure optimal performance and energy efficiency.
Plumbing Repairs
Our licensed plumbers handle water heater installations, pipe repairs, and fixture replacements for residential and agricultural clients. Services include water softener installation, sump pump maintenance, and emergency leak repairs. We use durable materials and advanced diagnostic tools to resolve issues quickly and effectively.
Emergency Service
Available 24 hours a day, 365 days a year for urgent heating or plumbing failures. Our rapid response team addresses critical issues like furnace breakdowns, frozen pipes, and gas leaks. Emergency service includes immediate diagnostics and temporary solutions to restore safety and comfort while planning permanent repairs.
Preventative Maintenance
Seasonal maintenance programs keep HVAC systems operating efficiently. Includes furnace cleaning in fall and AC checkups in spring, with comprehensive inspections of electrical components, refrigerant levels, and airflow systems. Regular maintenance extends equipment lifespan and prevents unexpected breakdowns.
Geothermal Systems
Design and installation of geothermal heating and cooling systems that leverage underground temperature stability. These energy-efficient solutions reduce utility costs while maintaining consistent indoor climates. Our team handles ground loop installation, heat pump integration, and system optimization for residential and agricultural applications.
People
Kevin Heise
Co-Owner
With over 30 years in HVAC, Kevin specializes in system design and emergency repairs. Holds Master Plumber and HVAC Qualifier licenses. Active in local community and motorcycle enthusiast.
Karen Heise
Co-Owner
Manages administrative operations with 30+ years of business experience. Coordinates scheduling and client communications while supporting community initiatives in New London.
Dan Heise
Co-Owner
Licensed technician since 2009, focusing on customer service and system installations. Handles agricultural HVAC projects and contributes technical expertise to complex residential systems.
Questions
What HVAC services do you offer?
We install and service furnaces, air conditioners, geothermal systems, and air filtration units for residential and commercial clients.
Do you provide emergency repairs?
Yes, our 24/7/365 service handles urgent heating and plumbing issues with rapid response times.
Are you licensed for plumbing work?
Yes, we hold a Master Plumber license and perform water heater, softener, and fixture installations.
What maintenance programs are available?
We offer seasonal HVAC tune-ups including fall furnace checks and spring AC maintenance with preventative care.
Do you serve commercial clients?
Yes, we handle agricultural and small commercial HVAC and plumbing needs with customized solutions.
Reviews (4)
Amy Bergum
Jun 20, 2021 Report
Positive:Professionalism,Punctuality,Quality,Responsiveness,Value
Heise Heating and cooling has been our go to for our commercial building. They have been very professional and timely. We are very satisfied with their work and service. Highly recommend. Kevin is very knowledgeable and explains everything they are doing or have done. Will definitely continue to use Heise Heating and Cooling.
Services:Heating system installation,Heating maintenance,Ductless heating and AC services,Heating system repair,AC installation,HVAC maintenance,Thermostat installation
Gloria Rivera
Jun 19, 2021 Report
Sorry to say that your workers didn't know what they were doing. They said their was a leak and it wasn't. I call someone else hear to fine out it was my cumpter monitor heat was by my Thermostat. I moved it and worked perfect.
Denis Tonsfeldt
Jul 04, 2019 Report
Positive:Punctuality,Quality,Responsiveness,Value
Kevin and Karen have been my go to heating, plumbing and AC resource for more than 20 years. Work is excellent. Totally honest and reliable. Helped out when our vacation house had problems and we weren't there. I would recommend without hesitation.
Rd Gospel Heating
Sep 21, 2018 Report
Heise helped me quickly out of a jam. Friendly and efficient. Thank you so much Kevin! Very grateful!