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Appleton, WI

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Christensen & Wisnet

5.0 (4 reviews)
Open • 8:00 am - 4:30 pm

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Bob's Quality Heating & Air Conditioning

Bob's Quality Heating & Air Conditioning

(9 reviews)

Process was straight forward. A sales pitchman (Sawyer) came over did a assessment of the duct work…read morealready in place. Went over the prices and unit models. A few weeks later the techs came over and did the job in about four hrs. The central A/C works wonderfully especially during these grueling humid/hot days. Only con that I can point out is there was a a set date for an installation but called me day of and unit was not in stock but rescheduled a few weeks later.

I live at Richmond Terrace and had a furnace/air conditioner replaced by Bob's Heating. This was a…read more$7000-$8000 installation. Afterwards, I had concerns about how to properly clean the grate, as there was no accessible panel. A representative from Bob's confirmed that the grates are not removable and advised using a product called Nu-Calgon Evap Foam No Rinse to clean the condensing coil. Earlier this year, Matthew's Heating & Cooling inspected and cleaned my furnace. They determined that the condensate drain had not been installed in a workmanlike manner and strongly advised against using the cleaning product mentioned above (see attached report). To date, we have identified at least two furnaces that experienced this same issue. I scheduled a meeting with the condo board president and a representative from Bob's Heating. No one from Bob's showed up for the meeting. I would urge any resident living at Richmond Terrace to use another vendor when replacing their furnace.

Black-Haak Heating

Black-Haak Heating

(19 reviews)

Brett Meuret came to my home today to take care of a clogged shower drain. Brett arrived on time,…read moregreeted me in a polite, pleasant , professional manner. We discussed the problem and Brett got right to work. Brett helped me with the ceiling tiles in the basement that had been damaged when the shower overflowed onto the floor and leaked down into the basement. Then he went to the shower and power rodded the drain and discovered a giant wad of hair that had been obstructing the drain. He made sure that the drain was free flowing and then cleaned everything up so it was all neat and tidy. Brett was very knowledgeable and explained everything in a thorough manner. I would happily recommend Brett and Black-Haak Heating and Plumbing for any work of that nature that you need to have done. Everyone at Black-Haak is friendly, professional and they get the job done in a timely and efficient manner.

I've had good service from Black-Haak before, but this appointment was disappointing. I scheduled…read moreweeks ahead, left work early, and brought my kids to our tornado-damaged home. We waited outside for an hour, and no technician came. At the appointment time, I received a text saying I had to confirm or no one would come. I didn't get it until well after the tech was supposed to be there. I was later told they'd tried calling and had sent the technician home, but I received no calls or voicemails. Why wouldn't they just show up for the appointment? I wasn't told a second confirmation was required. I hope Black-Haak reviews what happened.

Modern Sheet Metal

Modern Sheet Metal

(3 reviews)

We have used Modern Sheet Metal Inc (Modern Heating and Cooling) since we bought our house and…read morereplaced the heating/ac unit the next spring. They were professional, skilled, and had the the new system installed in the basement in very little time and it worked perfectly. A few years later the starter in it did burn out and their 24 hour emergency service person was prompt and had the part needed. The other day we thought we smelled gas in a small wall heater that is in our porch so we called them; they came right out to check. Turns out there was no leak (they did a thorough check) so we were happy about that. They also replaced our heating/ac unit's filter. Very professional, helpful, answered questions/concerns. I recommend Modern to anyone who is in the market for installation or service of HVAC.

First of all....they're awesome. We moved to the area in 1998 and added a/c soon afterwards…read more There was a Modern Sheet Metal sticker on the furnace, so I called them for an estimate. We haven't used anyone else, nor quoted anyone else since then. This past weekend I noticed an odd smell and soot buildup on the exhaust vent for our furnace. Since it was a Sunday in February, I called WE Energies first. The WE rep measured the CO2 at the exhaust and told me that he would need to shut our furnace down before he left, and recommended that I call my HVAC contractor. Modern Sheet Metal had someone at our house within a half an hour. He told me which furnace he would recommend and measured for the new unit. Since it was a Sunday, we scheduled the install for Tuesday. He then left three space heaters with us to keep the house warm. Monday morning's temp was 15 degrees outside, 64 inside. As I was preparing to leave for work at 7am, my phone rang. It was Modern asking if it would be okay to install the new unit that morning. The guys arrived before 7:30 and had the new furnace installed by 10:00. They also left the work area cleaner than when they arrived. Absolutely recommend them for your heating and A/C needs.

Christensen & Wisnet - hvac - Updated November 2026

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