Serving local Metro East communities with same-day expert plumbing, heating, cooling & electrical services.
Ductless mini-split systems deliver efficient heating and cooling without ductwork, making them a strong choice for additions, older homes, or room-by-room control. Morrison Plumbing, Heating, Air & Electrical installs mini-splits throughout the Caseyville and Metro East area.
We help you choose the right number of indoor units and capacity for your space, then handle the full installation—indoor units, outdoor condenser, refrigerant lines, and electrical—with proper sizing and code compliance.
Southern Illinois has hot, humid summers and cold winters. Correct sizing and installation ensure your mini-split can cool in summer and heat in winter without wasting energy. We size and install for your actual load and usage.
Morrison Plumbing, Heating, Air & Electrical serves Caseyville and the Metro East. We install mini-splits in Belleville, Swansea, Collinsville, Edwardsville, O’Fallon, and surrounding communities.
We also provide mini-split repair, air conditioning installation, heating services, and smart thermostat installation.
Contact Morrison Plumbing, Heating, Air & Electrical for a mini-split installation quote in Caseyville. We’ll help you design and install the right system for your home.

Upgrade to select Deluxe, Premium, or Supreme American Standard systems with 0% financing or payments starting at just $189/month.

Save up to $125 on whole-home PureAire air quality packages.

Get the service call on us — trip charge waived with any HVAC repair or full system replacement.

Keep your system running at peak performance before the summer heat hits. Schedule today and save.
It depends on the number of rooms or zones you want to condition. We’ll recommend a layout and capacity based on your home and goals.
Yes. Heat pump mini-splits provide both cooling and heating and perform well in our climate with proper sizing.