About Us

Commercial and Industrial Solutions for Air Conditioning and Heating, Electrical, Plumbing, and Indoor Air Quality Services

Welcome to Sunstate Mechanical Services

Sunstate Mechanical Services is a full-service provider of HVAC, electrical, plumbing, and indoor air quality services. We offer commercial and industrial solutions throughout Arizona, California, Texas, Washington and Alabama. We provide services to a wide range of facility types and industries. Our clients range from small clinics to industrial parks covering millions of square feet and everything in between. Sunstate features one of the newest, most-reliable fleets in the industry and our experienced service technicians are all certified and highly skilled.

Mission Statement

  • Create value for the customers and owners
  • Respect their decision, accept excellence and reward accomplishment
  • Face reality, be proactive, take ownership, and act with integrity
  • Work as a team and communicate fully and openly
  • Spend wisely and invest in the future

Certifications and Associations

Our team of expert technicians have the training and certifications needed to help you solve all of your air conditioning, heating, electrical, plumbing, and indoor air quality needs. We are also committed to giving back to the community and actively seek opportunities where our clients and employees live and work. When people work together great things happen.

Mitsubishi Diamond DesignerArizona Heat Pump CouncilAPS Qualified ContractorSRP Certified ContractorVHRA Valley Resort and Hotel AssociationBBB A+ Better Business BureauArizona Contractors AssociationAMA Arizona Multihousing AssociationNAIOP Commercial Real Estate Development Association Arizona ChapterBOMA Greater PhoenixBSCAI

We're a Marsden Company!

Marsden Services is a full spectrum facility services provider, offering janitorial, security, building maintenance, and specialty property services throughout the United States.Sunstate Mechanical is wholly owned by Marsden Holding. Marsden is a full spectrum facility services provider, offering janitorial, security, building maintenance, and specialty property services throughout the United States. Through Sunstate Mechanical's combined national support and local operations, we provide our clients with the strength of a large corporation with the individualized care of a small business.

National Scope

Marsden is one of the largest privately owned facility service providers in the United States. Marsden has over 50 offices throughout the United States and employs more than 10k people. Marsden has thousands of clients across the country and services over 300M square feet every day.

Local Dedication

Despite Marsden's national scope, Marsden focuses on the local markets in which it has acquisitions and office locations. Each office is invested in its community and local clients, providing personalized service. Like a small, local company, the regional offices make decisions on all aspects of their service operations and are empowered to manage their teams and respond to all client needs and requests.

Enterprise Resources

Marsden's local operating companies have the benefit of leveraging Marsden’s resources as a large organization – including staff, technology, equipment, supplies, information, industry experts, and financial support.