Serving Milwaukee & Southeast Wisconsin
GCS Heating & Cooling proudly provides professional heating, air conditioning, and water heater services
throughout Milwaukee and the surrounding communities.
GCS Heating & Cooling is proud to serve homeowners and businesses throughout Southeast Wisconsin. Whether you need emergency HVAC repair, seasonal maintenance, or a complete heating and cooling system replacement, our experienced team is ready to help with honest recommendations, quality workmanship, and dependable service.
Communities We Serve
- Milwaukee
- Brookfield
- Wauwatosa
- Menomonee Falls
- West Allis
- Glendale
- Whitefish Bay
- Brown Deer
- Greenfield
- New Berlin
- Franklin
- Waukesha
- Pewaukee
- Elm Grove
- Butler
- Brookfield, Wisconsin 53005 Brookfield, Wisconsin 53005, United States
- Butler, Wisconsin 53007 Butler, Wisconsin 53007, United States
- Cedarburg, Wisconsin 53012 Cedarburg, Wisconsin 53012, United States
- Germantown, Wisconsin 53022 Germantown, Wisconsin 53022, United States
- Grafton, Wisconsin 53024 Grafton, Wisconsin 53024, United States
- Brookfield, Wisconsin 53045 Brookfield, Wisconsin 53045, United States
- Menomonee Falls, Wisconsin 53051 Menomonee Falls, Wisconsin 53051, United States
- Pewaukee, Wisconsin 53072 Pewaukee, Wisconsin 53072, United States
- Sussex, Wisconsin 53089 Sussex, Wisconsin 53089, United States
- Mequon, Wisconsin 53092 Mequon, Wisconsin 53092, United States
- Mequon, Wisconsin 53097 Mequon, Wisconsin 53097, United States
- Cudahy, Wisconsin 53110 Cudahy, Wisconsin 53110, United States
- Elm Grove, Wisconsin 5312 Elm Grove, Wisconsin 53122, United States
- Greendale, Wisconsin 53129 Greendale, Wisconsin 53129, United States
- Hales Corners, Wisconsin 53130 Hales Corners, Wisconsin 53130, United States
- Franklin, Wisconsin 53132 Franklin, Wisconsin 53132, United States
- New Berlin, Wisconsin 53146 New Berlin, Wisconsin 53146, United States
- Muskego, Wisconsin 53150 Muskego, Wisconsin 53150, United States
- New Berlin, Wisconsin 53151 New Berlin, Wisconsin 53151, United States
- Oak Creek, Wisconsin 53154 Oak Creek, Wisconsin 53154, United States
- South Milwaukee, Wisconsin 53172 South Milwaukee, Wisconsin 53172, United States
- Waukesha, Wisconsin 53186 Waukesha, Wisconsin 53186, United States
- Waukesha, Wisconsin 53188 Waukesha, Wisconsin 53188, United States
- Waukesha, Wisconsin 53189 Waukesha, Wisconsin 53189, United States
- Milwaukee, Wisconsin 53202 Milwaukee, Wisconsin 53202, United States
- Milwaukee, Wisconsin 53203 Milwaukee, Wisconsin 53203, United States
- Milwaukee, Wisconsin 53204 Milwaukee, Wisconsin 53204, United States
- Milwaukee, Wisconsin 53205 Milwaukee, Wisconsin 53205, United States
- Milwaukee, Wisconsin 53206 Milwaukee, Wisconsin 53206, United States
- Milwaukee, Wisconsin 53207 Milwaukee, Wisconsin 53207, United States
- Milwaukee, Wisconsin 53208 Milwaukee, Wisconsin 53208, United States
- Milwaukee, Wisconsin 53209 Milwaukee, Wisconsin 53209, United States
- Milwaukee, Wisconsin 53210 Milwaukee, Wisconsin 53210, United States
- Milwaukee, Wisconsin 53211 Milwaukee, Wisconsin 53211, United States
- Milwaukee, Wisconsin 53212 Milwaukee, Wisconsin 53212, United States
- Wauwatosa, Wisconsin 53213 Wauwatosa, Wisconsin 53213, United States
- West Allis, Wisconsin 53214 West Allis, Wisconsin 53214, United States
- Milwaukee, Wisconsin 53215 Milwaukee, Wisconsin 53215, United States
- Milwaukee, Wisconsin 53216 Milwaukee, Wisconsin 53216, United States
- Glendale, Wisconsin 53217 Glendale, Wisconsin 53217, United States
- Milwaukee, Wisconsin 53218 Milwaukee, Wisconsin 53218, United States
- West Allis, Wisconsin 53219 West Allis, Wisconsin 53219, United States
- Greenfield, Wisconsin 53220 Greenfield, Wisconsin 53220, United States
- Greenfield, Wisconsin 53221 Greenfield, Wisconsin 53221, United States
- Milwaukee, Wisconsin 53222 Milwaukee, Wisconsin 53222, United States
- Milwaukee, Wisconsin 53223 Milwaukee, Wisconsin 53223, United States
- Milwaukee, Wisconsin 53224 Milwaukee, Wisconsin 53224, United States
- Milwaukee, Wisconsin 53225 Milwaukee, Wisconsin 53225, United States
- Wauwatosa, Wisconsin 53226 Wauwatosa, Wisconsin 53226, United States
- West Allis, Wisconsin 53227 West Allis, Wisconsin 53227, United States
- Greenfield, Wisconsin 53228 Greenfield, Wisconsin 53228, United States
- Milwaukee, Wisconsin 53233 Milwaukee, Wisconsin 53233, United States
- St. Francis, Wisconsin 53235 St. Francis, Wisconsin 53235, United States
As a veteran-owned business, GCS Heating and Cooling combines technical expertise with integrity and dedication to service. From emergency AC repairs to full system installations, our focus is on maintaining your home’s comfort while providing the highest level of good customer service, something our name stands for. Request a free estimate!
Your air conditioning system plays a critical role in maintaining comfort and indoor air quality during hot Wisconsin summers. At GCS Heating and Cooling, we offer a full range of cooling services tailored to meet the needs of your home, your family, and your budget. Our EPA-certified and insured technicians are trained to work on a variety of systems and brands, ensuring reliable results every time. Our cooling services include:
Central Air Conditioning Repair,
Replacement & Installation
Mini Split & Ductless
Cooling Systems
Heat Pump Cooling Services
Emergency AC Repairs
We proudly work with trusted brands, including Goodman, Amana, Coleman, Bryant, and Carrier, so you can rest assured that your system is built to last and perform at its best.
Maintenance Tip: Keep Your Air Conditioner Running Efficiently
Regularly clean or replace your AC filters to ensure optimal airflow and system efficiency. Dirty filters restrict airflow, force your system to work harder, and can lead to higher energy bills or even premature equipment failure. For best results, check filters every 1–3 months during the cooling season.
Air Conditioning Repair and Replacement
A malfunctioning air conditioner can make even a mild summer day feel unbearable. If your system isn’t cooling evenly, is making unusual noises, or is increasing your energy bills, it’s time to call in the experts at GCS Heating and Cooling.
Our technicians specialize in diagnosing and repairing all types of central air conditioning systems. We identify the root cause of the issue and provide solutions that restore comfort efficiently and safely. Whether it’s a simple refrigerant recharge, a motor replacement, or a more complex repair, we have the skills and experience to get your system working like new.
If your AC is outdated or beyond repair, GCS Heating and Cooling provides professional air conditioning installation and replacement services. We help you choose a system that maximizes energy efficiency, cooling performance, and reliability for your home, ensuring long-term comfort and value.
Mini Split and Ductless Cooling Systems
For homes without traditional ductwork or for supplemental cooling in specific areas, mini-split and ductless systems are an excellent solution. GCS Heating and Cooling installs and services these systems to provide efficient, targeted cooling where it’s needed most. Ductless systems are ideal for:
- Room additions or finished basements
- Garage or sunroom cooling
- Energy-efficient zone control
Our team ensures proper installation and maintenance, so your mini split or ductless system delivers consistent comfort and peak performance for years to come.
Heat Pump Cooling Services
Heat pumps provide year-round comfort by combining heating and cooling in a single energy-efficient system. At GCS Heating and Cooling, we install and service heat pumps to ensure your home stays cool during the summer and warm in the winter.
Our technicians have extensive experience with heat pumps of all makes and models. We perform accurate diagnostics, preventative maintenance, and emergency repairs, ensuring your system operates efficiently and reliably.
Emergency Cooling Repair
Air conditioning problems rarely happen at a convenient time. That’s why GCS Heating and Cooling offers emergency cooling services throughout Milwaukee, WI. Whether your system fails in the middle of a heatwave or a critical component breaks unexpectedly, our licensed technicians are ready to respond quickly and restore comfort to your home.
We arrive equipped with the necessary tools, parts, and expertise to handle urgent repairs efficiently. Our focus is on getting your system back online as fast as possible while maintaining high-quality workmanship and long-term reliability.
Trusted Cooling Experts in Milwaukee
At GCS Heating and Cooling, our name reflects our commitment: good customer service. Every cooling project we undertake is performed with honesty, professionalism, and a focus on your satisfaction. We provide free estimates, veteran discounts, and quality solutions that homeowners can rely on.
Licensed, insured, and EPA-certified, our technicians bring nearly two decades of experience to every repair, installation, and maintenance job. When you choose GCS Heating and Cooling, you’re choosing a cooling contractor dedicated to delivering comfort, performance, and reliability, all at the best price.
Call us at
(262) 202-4666 to request a service or schedule your free estimate today.
★★★★★
GCS heating and cooling did a great job installing my new furnace and air conditioner. They gave us a great price and were very knowledgeable. I would recommend them and will be doing future business with them. Thanks again.
~ Steven
★★★★★
Brad has very good knowledge of heating and cooling. He is very detailed and thorough with installation. I have used him twice now for new a/c service and relocating another unit on my house. Very flexible with scheduling and responsive. I recommend him to my clients if they need work too.
~ Dave S.
★★★★★
GCS helped me ASAP when my water heater unexpectedly starting leaking and I wasn't able to shut the water off. Brad was knowledgeable and lived up to the Good Customer Service branding. I would gladly hire him again!
~ David N.