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Keystone Critical Systems
Keystone Critical Systems & Advisors is a single point of responsibility dedicated to Data Center & Mission Critical environments. As a full-service Data Center contractor with a focus on long-term risk mitigation, we assure a high level of consistency by integrating products and services that result in the best cost and value to the customer.

Free Service Demonstration Ask about our no charge services and audits where Keystone can identify the weak links you may not know about. If you have unexplained equipment failures or repetitive failures on the same equipment, Keystone's staff engineers and field specialist can identify the components prone to fail and the underlying root cause for the potential failure.

Keystone's global knowledge of the entire technical facility will assure no detail is overlooked. Technical facility planning strategies, concepts, budgets, schedules and post construction maintenance services will provide you the ability to make business decisions with confidence.
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Keystone's dedication to provide experience, knowledge and personal service signifies our mission. Donald Cleaver, Keystone's founder and CEO, created a company in 2003 with it's sole focus on the electronic environment. Mr. Cleaver started in the industry in 1974 as an HVAC apprentice. His early years field tenure and later attaining a mechanical engineering degree, encompasses 47 years of electronic environment experience and knowledge.
Keystone's global knowledge of the entire technical facility will assure no detail is overlooked. Technical facility planning strategies, concepts, budgets, schedules and post construction maintenance services will provide you the ability to make business decisions with confidence. Tell us about your issues and concerns, no matter how small and we will provide a solution.
Personal attention to your critical environment assist you in managing all support systems within your technical facility and that it is operating in an efficient and reliable manner. Keystone's global knowledge of the entire technical facility will assure no detail is overlooked.
Keystone's sole business focus is on IT infrastructure. Our services include full turn-key installation and post-construction maintenance. Keystone believes the installation / maintenance combination is key in providing the lowest cost of ownership while maintaining high efficiency and versatility.
Did you know that up to 90% of unexpected data center incidents are caused from electrical and mechanical cooling systems? Without proper maintenance contracts, your data center may be the next to experience an unplanned event. These events get noticed - and quickly. They drive your operating costs through the roof and reduce your center's overall efficiency rating.
Reviews (7)
Carlos Torres
Carlos Torres
Jun 03, 2021
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Positive: Professionalism, Punctuality, Quality, Responsiveness, Value
Always a pleasure to do business with, all the HVAC technicians aver very knowledgeable, helpful and professional. The staff is beyond awesome, quick and responsive. If you need to install or service HVAC equipment this is the place to go. Ask for Bryan you will not be disappointed.
Ashley H.
Ashley H.
Jun 01, 2021
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Services: Light fixture repair, Socket or switch installation, Earth wire installation, Outdoor lighting installation, Light fitting installation
Positive: Professionalism, Punctuality, Quality, Responsiveness, Value
George Alger
George Alger
May 30, 2021
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Positive: Professionalism, Punctuality, Quality, Responsiveness
Fantastic group of guys!! Highly knowledgeable, on time and always available. Their field workers go above and beyond to ensure the job is done on time and with the utmost quality.
James Viane
James Viane
May 21, 2021
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Positive: Professionalism, Punctuality, Quality, Responsiveness
I've worked with this family owned business for 25 years and continue to work with them because they are the best in the business when it comes to design, construction and maintenance of critical business systems.
Aj Charping
Aj Charping
Sep 19, 2018
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Straight forward easy to deal with knowledgeable and timely... First class!!!
Willy Santos
Willy Santos
Aug 07, 2018
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They've made looking after our facility a breeze! Aaron bends over backwards to see to it we are always satisfied with their services. Calls before and after to check on us too... Highly recommended!
I.- Fleet
I.- Fleet
Jun 10, 2017
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WONDERFUL PEOPLE AND EXCELLENT CUSTOMER SERVICE. HIGHLY RECOMMEND THEM