We are committed to providing Cape Cod with high-quality service from skilled technicians at a reasonable price. McDonnell Mechanical Services (MMS) is pleased to provide customer references. We guarantee our installations, with no fine print. Financing is available. Our company grows more by referrals than by sales which attests to our level of service.
Reliability, comfort and economics are the factors that we consider most important for the installation or service of HVAC or heating and air conditioning systems. When this is accomplished the result is years of satisfaction, peace of mind and lower maintenance and repair costs. We at MMS have the knowledge and experience to deliver this product to our customers.
After your home or business is assessed and measured, we perform heat load calculations so that we can assemble the most efficient system (not too big or too small). The systems are built using name brand equipment.
The proper design and installation of ductwork is critical to the efficiency of your air conditioning system. Your home or commercial space will be carefully measured for the accurate fit of custom designed ducts. We consider generators or standby backup power generation to be an essential component of your home’s mechanical systems.
MMS offers a range of service plans to meet your needs. An MMS representative will help you identify the service plan that’s right for your needs.