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50+ Years
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Emergency
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Commercial HVAC & Electrical Services in Northern Virginia
CFS Service has been a trusted provider of commercial mechanical services since 1965, delivering expert HVAC, plumbing, and electrical solutions across Northern Virginia and Washington DC. Our team of certified professionals combines decades of industry experience with manufacturer-specific training from leading brands like Daikin, Trane, and Carrier to ensure optimal system performance. We prioritize transparency, offering 24/7 emergency service, proactive maintenance plans, and upfront pricing without hidden fees. Our commitment to quality is reflected in our long-standing client relationships, LEED-certified project contributions, and rigorous technician background checks.

With full licensing, bonding, and insurance coverage, we provide comprehensive mechanical system installations, repairs, and upgrades for commercial properties including office complexes, medical facilities, and retail centers. Our locally-owned operation maintains strict quality control through in-house project management rather than subcontracting, ensuring consistent service excellence across all projects.
Services
Commercial HVAC Installation Plumbing Repairs Electrical Maintenance Emergency Services Maintenance Plans System Upgrades Water Treatment Security Systems Lighting Solutions Generator Services
Details
  • Year established: 1965
Highlights and features
  • 24-hour emergency service with rapid response times
  • Fully certified, bonded, and insured technicians
  • No hidden fees or unexpected upgrade recommendations
  • Proactive maintenance plans preventing system failures
  • LEED-certified project experience with major contractors
Associations and certifications
  • Daikin Certified Contractor
  • Mitsubishi Certified Contractor
  • Trane Comfort Specialist
  • Carrier Authorized Factory Dealer
What people say
Excellent work Competitive price Professional team Timely manner Top of our list
Services
Commercial HVAC Installation
We design and install energy-efficient commercial HVAC systems including rooftop units, VRF systems, and boiler installations. Our NATE-certified technicians ensure proper system sizing and code compliance for optimal performance. With manufacturer certifications from Carrier, Trane, and Daikin, we deliver climate control solutions that reduce energy costs while maintaining occupant comfort across office complexes, medical facilities, and retail spaces.
Plumbing Repairs
Our licensed master plumbers provide 24/7 emergency repair services for commercial plumbing systems. We handle leak detection, drain cleaning, and pipe replacement using state-of-the-art video inspection technology. From high-rise buildings to industrial facilities, our team maintains compliance with local plumbing codes while minimizing business disruption during repairs and maintenance.
Electrical Maintenance
We offer comprehensive electrical system maintenance for commercial properties including panel inspections, motor control testing, and emergency lighting checks. Our master electricians perform preventive maintenance to NFPA 70E standards, ensuring safety compliance and system reliability. Services cover everything from basic repairs to complex control system upgrades for retail centers, schools, and corporate facilities.
Emergency Services
Our 24-hour emergency response team addresses critical mechanical failures with rapid dispatch and transparent pricing. HVAC breakdowns, plumbing emergencies, and electrical outages receive immediate attention from fully-equipped service vehicles. With technicians on call 365 days a year, we minimize downtime for commercial clients through expedited parts inventory and priority service protocols.
Maintenance Plans
Customized maintenance agreements include seasonal system tune-ups, preventive repairs, and performance optimization. Our plans cover HVAC, plumbing, and electrical systems with detailed inspection checklists and digital service records. By identifying potential issues before failures occur, we help commercial clients reduce energy costs, extend equipment lifespan, and maintain operational continuity.
People
Frederick S. Petrus
President and COO
With over 55 years of industry experience, Fred Petrus leads CFS Service as President and COO. A master HVAC technician and licensed real estate professional, he ensures operational excellence through strict quality control and ethical business practices. His leadership focuses on customer satisfaction through transparent service and technical expertise.
Randy Manning
Senior Project Manager
Randy Manning brings 30+ years of construction management experience to CFS Service. Specializing in complex commercial projects, he oversees installation coordination and quality assurance. His carpentry background ensures precise execution of high-detail mechanical system installations across diverse commercial properties.
George E. Joseph Sr.
HVAC Operations Manager
With 29 years in HVAC and refrigeration, George Joseph manages commercial system operations. A licensed master technician with CFC 608 certification, he supervises service teams and ensures technical excellence. His focus on customer satisfaction drives the company's commitment to 100% service completion guarantees.
Cary W. Ritchey III
Electrical Operations Manager
Cary Ritchey leads electrical operations with 29 years of commercial and residential experience. A master electrician certified in fire alarm and structured systems, he manages project coordination between contractors and inspectors. His hands-on approach ensures field operations maintain strict quality standards.
Mary Lieu
Chief Financial Officer
Mary Lieu oversees financial operations with 31 years of accounting experience. Her expertise in construction industry finance ensures transparent billing and cost management. She maintains fiscal discipline while supporting the company's growth through strategic financial planning and resource allocation.
Questions
What Northern Virginia areas do you service?
We serve all of Northern Virginia including Fairfax, Arlington, Alexandria, Loudoun, and Stafford counties, plus Washington DC.
What commercial facility types do you work with?
We service office complexes, banks, retail centers, restaurants, medical clinics, schools, churches, and apartment buildings.
Do you offer preventive maintenance plans?
Yes, we provide customized HVAC, plumbing, and electrical maintenance agreements with seasonal inspections and priority service.
What emergency services are available?
Our 24/7 emergency team responds to HVAC failures, plumbing leaks, and electrical outages with rapid dispatch and transparent pricing.
Which equipment brands do you service?
We work with all major brands including Carrier, Trane, Daikin, Mitsubishi, York, and Siemens for repairs and installations.
Do you handle new commercial construction?
Yes, we specialize in new commercial HVAC, plumbing, and electrical installations working directly with general contractors.
Reviews (7)
Hank F.
Jan 28, 2022 Report
We asked a legitimate HVAC and water heater question, and the President of the company responded with "Fuck off"
Colby Connelly
Dec 28, 2021 Report
We were in need of a house re-pipe after moving in a few months ago, and Fred's estimate came in well below anyone else who took a look at what needed to be done. He and his team did an incredible job and were in and out of our house in no time at all. Not only did they complete the re-piping in two days, they put in several new fixtures for us and discovered (and repaired) several issues with our plumbing we didn't even know we had. I cannot recommend this company enough and would absolutely refer anyone I know to them for any plumbing needs!
Marva H.
Aug 24, 2021 Report
Ky was the best, most honest repair man I have ever had. Not only was he prompt but he also gave me his professional and personal recommendations. 10/10. they came the same day, and fix the issues right away. Thank you 10000x
Terence Sullivan
May 17, 2019 Report
I am currently into a remolding project for my home, which entails a new kitchen and replacing flooring throughout the house. During the beginning stages of the project I hired a "certified" electrician who was dishonest, unreliable and moreover not qualified. Because of this I contacted CFS Services Inc and spoke with Mr. Fred Petrus. Mr. Petrus immediately listen to my existing problems with respect to the electrical work.

He assigned one of his top electricians to come to my house and assess the existing work, then base on the findings provided a sound plan to correct the previous electrician mistakes. CFS perform the work flawlessly, they corrected all the mistakes, as well as made sound recommendations which enhanced the project. When dealing with CFS I have found them to be straight forward, honest and their contractors professional. I highly recommend CFS as a company.
Robert Caton
Jun 06, 2018 Report
I used this company several times and have been very pleased with workmanship and price. Highly recommend.
Ali B.
May 23, 2018 Report
George was very helpful and took his time to thoroughly answer all of the questions we had. It was very apparent George is very knowledgeable about his craft and also informed us of additional services the company provides. We will definitely use his services when our needs arrise. Thank you!
Kevin Hensley
Jun 15, 2017 Report
Amazing company with some fantastic employees. Everything from the first call to the in home experience has been better than 5 star!