414-304-9500 [email protected]

About A-1 Services

A-1 Services, located in Oak Creek, Wisconsin, has over 20 years of experience in the heating and air conditioning business. We specialize in providing the best comfort solution for both residential and commercial customers in the entire Southeastern Wisconsin area.

A-1’s technicians are equipped to tackle anything from routine maintenance to turnkey installations. We take pride in providing our customers with the best resolution for their specific needs. Our extensive HVAC experience guarantees our recommendations will be the best.


To save on utility bills and service calls, we urge you to take a preventative maintenance approach to your heating and cooling equipment. All of your heating and cooling systems should receive regular inspection and maintenance.


We can install or design any type of heating or cooling system required in your home or commercial building. We install high-efficiency comfort systems designed to be the most cost-effective on the market and geared to your particular property.


In the event that your equipment needs servicing, you have peace of mind knowing we’re only a phone call away. We offer emergency service and free estimates on new equipment and installations.

Whether you own a commercial or residential building, or need installation or service, our goal is to provide you with key environmental systems expertise. You should be at ease and in control — a feeling of confidence and comfort that we are happy to help you establish and maintain.