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Fall Plumbing Maintenance Checklist for Wisconsin Homes

September 8, 2025

Fall is here, which means dropping temperatures for Wisconsin homeowners. To help you prevent winter plumbing emergencies like frozen pipes, our team at Black-Haak is going over our fall plumbing maintenance checklist. These tasks help ensure that you’re safe from plumbing disasters. However, if the worst occurs, our team is here for you with a full range of plumbing services, including expert pipe repair in Greenville, WI, and throughout Fox Valley. The Importance of Preparing Your Plumbing System for Fall & Winter Fall plumbing maintenance in Greenville, WI, is critical to prepare your system from the area’s dramatic

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Geo-Thermal Heating

September 17, 2020

Black-Haak would like to share with you a video on Geo-Thermal Heating! Check out upcoming improvements to the XT Series Multi-Positional vertical geothermal heat pumps featuring an all-new Aluminum Micro-Chanel Air Coil. This innovation solves a huge HVAC industry issue by eliminating the potential for Formicary Corrosion. Enertech is the first manufacturer to use this technology as both a condenser and an

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Air Conditioning Installation, Service & Repair With Black-Haak!

September 17, 2020

Black-Haak has the knowledge and experience to answer any question in home heating, cooling, and air quality. We offer Temp Star variable speed furnaces with up to 95% efficiency plus super-efficient air conditioners. Black-Haak will inform you of all money-saving rebates and utility programs. You will get a perfect installation for your unique home requirements. You can have it all! Serving the entire Fox

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Money Saving Announcement

September 17, 2020

Black-Haak has put together extra-low combination prices and end-of-season discounts on Tempstar furnaces and air conditioning units. We help you save energy and money at Black-Haak! Give us a call at (920) 757-9990 in Appleton or (920) 231-6642 in

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Black-Haak Heating Receives Top Sales Award From Tempstar For HVAC Sales For 2014

September 17, 2020

Appleton, WI (May 4, 2015) – Gary Hazelberg, Residential Sales Manager and Jim Valentine Territory Manager for Temperature Systems Inc. in Green Bay recently presented the 2014 Tempstar Top Sales Award to Black-Haak in Appleton. The award was presented to brothers Jim and Jeff Haak at their showroom. Black-Haak has won this award for 9 years in a row since 2006. Black-Haak has been representing the Tempstar line of HVAC products since 1989. Black-Haak also has three electricians on staff and offers service in the evening and on Saturdays at their regular service rate. All of Black-Haak

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2012 Promotional Video

September 17, 2020

Black-Haak would like to share with you its heating and cooling promotional video for 2012 that airs on local televisions throughout the Fox

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Pulling For Honor

August 12, 2020

This weekend the Black-Haak team participated in 2019 Pulling For Honor event. The purpose of this event was to raise money for Old Glory Flights. The mission of this event was to come together with ATW to raise $85,000 to fully fund one Honor Flight enabling 100 veterans to experience an unforgettable trip to Washington D.C. Altogether over $105,000 was raised this weekend! Black-Haak would like to thank our sponsors Daikin and Stevens along with all the families who came out to support us! We as a team learned so much and can’t wait to participate next

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COVID-19 Customer Letter

March 20, 2020

To our valued customers: In these uncertain times we’d like you to know that all of us here at Black-Haak remain committed to taking care of our customers’ heating, cooling, air quality and electrical needs. We will remain flexible for what the future holds. Our number one goal is to keep our customers and employees safe and we will continue to closely monitor guidelines and recommendations from the Centers for Disease Control. When we visit your home or business, rest assured we will follow CDC guidelines for cleanliness standards. Our technicians

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Weyauwega Fremont School District Students Visit Black-Haak Heating

March 6, 2020

The Weyauwega Fremont school district visited Black-Haak on Tuesday to learn about careers in the trade. Seventy-five students were able to get some hands-on experience at different stations set up around the shop. This is the second year we were able to offer students some insight into a great

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November Company Training Meetings

November 14, 2019

Black-Haak held company training meetings last week, Thursday, November 9th, and Friday, November 10th. Our meetings featured Mark Matteson, guest international speaker and author, who spoke to our employees regarding providing excellent customer service in the Plumbing, Heating, and Electrical trades. to our valued clients. Friday’s meetings emphasized supervisors serving their co-workers to help efficiently achieve company goals. Through these meetings, Black-Haak strives to provide even better customer satisfaction and goal achievement! It was a great way to keep the focus on what is important in the busiest time of the year and to

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