AC & Heating Services


We will only perform work as necessary. Our professionally trained service technicians will diagnose your equipment and recommend only what is absolutely necessary. Our technicians are not on commission. We will gladly provide a second opinion if you are concerned about an estimate you received from another company.

Initial service call is $59.00, (within our service area and during normal work hours), plus any parts required to repair your equipment. Our highly skilled certified technicians can service all brands of equipment.

It’s simple. MSI will provide a written estimate and only perform work as needed at a reasonable price.


We will evaluate your requirements and properly size a system tailored to your requirements. Key factors to consider are: Home Square Footage, Efficiency, Humidity , Insulation, Windows (number and size) and Home Orientation. We will determine the most cost effective solution for you.

MSI provides a range of products allowing you to consider the most cost effective option. You decide what best fits for your family and budget.

Good: High efficiency system, brand name manufacturer, seer rating 13-14, limited warranty, excellent standard unit with high performance compressor, copper tubing and quiet condenser.

Better: High efficiency system, brand name manufacturer, conditional warranty, additional options and features like two speed motors, higher seer rating 14,16, programmable thermostats, a premium unit with a variable speed motor and high performance compressor, overload protection and quiet condenser.

Best: Highest efficiency , brand name manufacturer, 10 year parts/labor warranty, multi-speed operation, dual stage compressors, seer rating 18 with programmable functions, a superior unit with variable speed blower and coil. Extra quiet condenser fan refrigeration grade copper tubing and aluminum fan coils.

Units sized for the optimum square footage requirements of your home or office.

Preventative Maintenance / Tune-ups

We offer an initial inspection and service for a low price of $59. We want to keep your unit in top running condition. Preventative Maintenance is important to maintain the efficiency and life of the system. Our technicians will present to you a full written analysis of what was completed and what condition your system is in along with our recommendations.

Service Plans

Annual service plans are designed to keep your system in peak operating performance while extending the life of the system. In the hot Arizona summers, reliability and performance are most important. MSI provides its service customers with a 20% reduction on parts. Annual service plans start at $85.00. Not a lot of money for piece of mind.