Skip to content
FeaturedHVAC Companies in Milwaukee, Wisconsin

Nimmer Heating & Air Conditioning, Inc.

Featured in Milwaukee Today 4.90 (944 reviews)(414) 500-4445

Nimmer Heating & Air Conditioning, Inc.

Nimmer Heating & Air Conditioning, Inc. is a family-owned HVAC company founded in Milwaukee in 1986. It repairs and services heating and cooling equipment, installs new systems, and provides maintenance across Greater Milwaukee.

Business Highlights
  • Bryant Factory Authorized Dealer.
  • NATE-certified technicians.
  • Licensed, bonded and insured.
  • Wisconsin HVAC license 3826.
  • Wisconsin HVAC qualifier certification 1550738.

Service Area

Milwaukee, Fox Point, Oak Creek, Franklin, Wauwatosa, West Allis, Whitefish Bay, Hales Corners, Cudahy, Greenfield, Muskego, Greendale, New Berlin, Brookfield and Mukwonago.

Featured Local Business

Nimmer Heating & Air Conditioning, Inc. is one of 11 HVAC companies ProsGrade lists in Milwaukee, Wisconsin.

Featured
Featured on ProsGrade
Listing details

12 services listed, including Air conditioning, Boilers and Furnaces. Open weekdays, closed on weekends. Rated 4.9 from 944 reviews.

  • Verified listing details
  • Service information
  • Customer review signals
  • Photo gallery
  • Public contact information
  • Published local profile

How This Business Compares

How Nimmer Heating & Air Conditioning, Inc. compares with the other 10 HVAC companies on ProsGrade in Milwaukee, using public Google ratings and review counts.

  • Ranks in the top quarter of the 11 Milwaukee HVAC companies on ProsGrade by Google rating and review volume.
  • Rated 4.9 on Google, at or above the 4.8 average of other Milwaukee HVAC companies on ProsGrade.
  • Has more Google reviews (944) than 8 of the 10 other Milwaukee HVAC companies on ProsGrade.
  • One of 11 Milwaukee HVAC companies on ProsGrade rated 4.7 or higher from at least 10 reviews.

Services Covered

12 services
  • Air conditioningrepair, maintenance and installation
  • Boilershot-water boiler installation and repair
  • Furnacesrepair, installation, maintenance and tune-ups
  • Heat pumps
  • Ductless mini-splits
  • Radiators
  • Baseboard and radiant heatingincluding in-floor heating
  • Zone controls and smart thermostatszone control systems; Wi-Fi/smart thermostats
  • Indoor air qualityair purifiers; whole-home humidifiers and dehumidifiers
  • Duct and vent servicesinstallation, repair, replacement, cleaning and sealing
  • Unico systemssmall-duct, high-velocity systems
  • Rooftop systemsreplacement and maintenance

Reviews

What customers say

Recent customers praise technicians for their professionalism and clear explanations, and describe the office staff as helpful. One customer appreciated Beth arranging for a technician to come over when one became available during their call; another valued Blake sharing maintenance-plan information without pressure.

Customer Reviews

Hrushikesh Ghatpande

Nimmer was able to schedule next-day diagnosis right away for us. The diagnostic fee is very reasonable, and is on the lower end of rates going currently. Joe, the technician, is very knowledgeable and immediately knew the cause of our HVAC system's issues. He went above and beyond and provided recommendations for other things related to the system. Overall, I will highly recommend Nimmer Heating and Air.
View full reviewShow less

Mary Heim

We’ve always had excellent experiences with Nimmer. Their prices were fair, customer service excellent, and we’ve gotten really quality home products with them when it was time to replace our major appliances. Natalie was our most recent service tech and was excellent! Friendly, professional, never felt like we were being oversold and even caught/replaced for us some outdated parts from a prior year’s installation. We will continue to trust and use Nimmer for our home!
View full reviewShow less

Patricia Kauffman

Nimmer Heating and Air was recommended by another service company that we had used for years before they got out of the HVAC business. We’ve used Nimmer twice so far, once for our A/C unit and this most recent time for our ancient boiler. Both times we’ve been so thankful to have found them. Technician Blake was friendly, prompt, and informative. I inquired about their maintenance plan and he didn’t try to upsell me— he gave me the facts and a brochure for me to make the decision on my own timeline, no hard pressure tactics which I really appreciated. I also appreciate the kindness and professionalism of the office staff who have been helpful both times. Nimmer will continue to be our go-to for all of our HVAC needs.
View full reviewShow less

sandra stirgus

Beth was pleasant over the phone when I called and she discovered i had also online booked time for a service call this week as well. This afternoon one of the techs became available from another job and Beth sent him right over while we were on tne phone. Blake was the service tech that worked on my furnace. He was pleasent and explained everything to me. Did maintenance and a small part needed replacement. Blake was thorough and time efficient. I am pleased with the service I received today. Thank you Beth and Blake. I will recommend to my friends.
View full reviewShow less

Aaron

My house basement flooded in Aug of 2025 like many others here in Milwaukee. Nimmer heating and Air Conditioning has been my service provider since 2006. I was able to have Nimmer send out a tech, and access my situation extremely quick given the widespread flooding damage in our area. Joe DeRose came out and gave a very professional service call to give me my options, he was very articulate and knowledgeable. I decided to replace both my AC and Furnace given the damage from the flood and the age of the units. Lost the board, and blower unit in flood, both were installed in 1993, so over 30 years old. AC was rusted and was already having performance issues. Next I had Brian Nowak from there sales dept out, and he gave me a very detailed estimate with several options, and packages that were customizable. Brian very great to work with, he had a couple decades of experience as installer and communication skills were outstanding. I qualified for Financing that Bryant offered through Wells Fargo. In my situation due to the amount of damage expenses I had from other items damaged in flood, this was an option that helped me immensely. 3 weeks latter, Pat Kuhlmeier, and Josh Jackson came in for install and removal of old units. Josh and Pat were on time and ready to go! They did exceptional work, with impressive craftsmanship. They explained what they where doing before hand and walked me through their work at the completion. Reworked ducking, new copper lines, everything labeled clearly and explained perfectly. Gave me all paper work for city permits, Manuels, maintenance. And Organizing all of this was Malinda Erdman in the office. Melinda was extremely responsive, top notch communication and logistics. They send texts, with everyone’s photo and full name so you know who they are and fell secure that highly trained, knowledgeable, professionals are working with you. I have used them for almost 20 years and will continue In the future Got a second opinion, repair of furnace would have been 3500-4000, not including, AC repair. Purchased and installed new Bryant AC and Furnace with some duct work and customized options was 12,200. Financed with Wells Fargo. 0% over 2 years.
View full reviewShow less

Write a Review

Share your experience with this business. Reviews are moderated before they appear publicly.

We'll email you a link to confirm your review. It's only sent in once you click it.

Frequently Asked Questions

Does Nimmer offer emergency HVAC service?

The company says heating and cooling service is available 24 hours a day, seven days a week.

Does Nimmer provide free installation estimates?

It offers free, professional in-home estimates for furnaces, boilers and air-conditioning systems.

How does Nimmer handle Bryant equipment's parts warranty?

Nimmer says its staff will register Bryant equipment, increasing the parts warranty from five years to ten at no additional cost.

Are monthly payment options available for maintenance plans?

Nimmer offers several preventative maintenance plans with monthly payment options.

What brands of furnaces does Nimmer service?

It services Bryant and most other brands of furnaces and heating equipment.