Forced Air Systems
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Forced Air Systems
Forced Air Systems was built on the idea of treating customers like family. We are a full service HVAC (heating and cooling) company serving all of Southeastern Wisconsin. At Forced Air Systems we we want you to feel like family! We will help you every step of the way, answering any questions you have.

One of our goals is to make you as comfortable as possible in making decisions on your HVAC system. We are here to educate and help you achieve comfort in your own home. Forced Air Systems is a Heil dealer. After over 20 years in the industry we started with Heil and continue to use them because we believe they are the best in equipment for reliability, ease of service and price.

This giving our customers the best all in one equipment. We have dealt with many other brands that just do not compare to the Heil product. When you choose a Heil heating or cooling system, it means your homes comfort is backed by 100 years of superior engineering and quality manufacturing. Each unit is 100% run tested, and we design our products to give you the best in quality, energy efficiency and reliability.
Services
Forced Air Systems was founded by Jeffrey C. Grenier and established in 1998. Jeffrey has over 24 years of experience in the HVAC industry. He gained his knowledge and experience by working for several other HVAC contractors in the area. His extensive experience has enabled Forced Air Systems to sell, install and service residential or light commercial HVAC applications.
Forced Air Systems is your one-stop-shop for all your HVAC installation and repair needs. Whether you're looking for help with something minor or need an experienced professional to take on a larger scale project - We are your go-to pro and we're ready to handle it all. Browse through the list of our services below, and get in touch for your free estimate.
If your looking to upgrade or just replace your thermostat we can assist you with finding the best solution. We offer a wide selection of thermostats from just your standard to wireless and smart wifi capable. When you let us know your needs we can suggest the best equipment for your home. We are here for all your HVAC service needs!
Aside from your home's heating and air conditioning (AC) system, two "accessories" some homeowners use are humidifiers and dehumidifiers. These optional components provide different benefits to ensure indoor air quality is maintained year round. They help enhance the efficiency of your home heating and cooling system, as well as help keep ducts cleaner so you need less frequent air duct cleaning.
Sensitive to mold, dust mites or other indoor contaminants? A whole house air cleaner is a device that can be mounted between your furnace and return air duct to trap the airborne particles that might exacerbate these problems. These cleaners are designed to work in addition to your furnace's standard filters, adding an extra level of cleanliness to your home.
Reviews (10)
Gerald Wysocki
Gerald Wysocki
Sep 06, 2021
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Recently our 28 year old AC failed on one of the 98 degree day’s.We have a family member who is in the HVAC business who has been keeping it going but it was time for a new one. A close friend recommended Forced Air Systems so we reached out to Jason from Forced Air Systems who gave us a quote. We did get quotes from 3 local companies who all gave pretty fair quotes. We decided to go with Jason who gave all the information we needed to decide on a system that fit our house. Our furnace and AC were the original from when the house was built and not properly sized for our square footage, so he
Tracy Genet
Tracy Genet
Aug 20, 2021
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Positive: Professionalism, Punctuality, Quality, Responsiveness, Value
Wonderful and fast service! Thank you!!
Service: AC repair
Erin Wait
Erin Wait
Nov 27, 2020
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Positive: Punctuality, Quality, Responsiveness, Value
I’ve used Forced Air Systems for various services, including two furnace installs. Fast response times, reasonable prices, trustworthy people. They even registered my last product properly so I received an energy rebate. Definitely recommend them.
Matthew
Matthew
Oct 14, 2020
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Positive: Professionalism, Punctuality, Quality, Responsiveness
Great service from them. Got my Ac running again and spent time answering questions that I had. Will use them again for any HVAC needs.
Thomas Zeise
Thomas Zeise
Sep 03, 2020
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Very good experience with Forced Air Systems. Of the 3 local shops I called, they were the most responsive and transparent with information and pricing. They were able to come and replace our furnace the same day for a very responsible cost. Didn't try to oversell and made sure we were aware of the rebate available. Very good and timely work. Also left the site very clean and were careful in the house using tarps to protect the carpeting.
Mark Drews
Mark Drews
Jun 23, 2020
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Jason and Jeff just installed a new Heil furnace and air conditioner system to replace my 23 year old system. I picked them because of many positive reviews of Heil products and their workmanship. They did a great job installing my system and I am looking forward to lower heating bills which will pay for the furnace in about 10 years. Since the furnace is 2 stages, it's also such quieter.
James Jensen
James Jensen
Sep 14, 2019
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Forced Air just finished installing our new furnace and ac. They did a great job, both Jason and Jeff were professional, worked hard to complete the work and very polite. I will for certain call them for any future work I may need and recommend them to anyone.
Maxwell Cousineau
Maxwell Cousineau
Sep 13, 2019
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Positive: Punctuality, Quality, Responsiveness, Value
Great company with awesome people. I completely trust the team with their expertise and skill. It’s great knowing I can give them access to a property and let them come and knock the job out without worry about anything!
Carie W.
Carie W.
May 18, 2019
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Jason and Forced Air Systems are the best! I have an OLD house and I have used them for both the Furnace and Central Air unit repairs. They have always been fair, well priced and responsive. They are now the only people I call when I have an issue.
Patrick Ziegenhorn
Patrick Ziegenhorn
May 16, 2019
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Jason and Jeff installed a new furnace, air conditioning, and a new water heater into my home. The day of the installation was a day that started on time and ended with me in disbelief as to how efficient and nice both of these gentlemen are. I had a manufacturer’s defect in my furnace. Jason came to my home every time that I called when there was a problem. He came one evening and sat in front of the furnace and saw what I was trying to tell him. He contacted the manufacturer and eventually replaced every working part of the furnace. His next step was to bring the representative from the manufacturer