FDC (Fire Department Connection)

Fire Department Connections (FDCs) are the access points for firefighters to supplement additional water to a building’s fire sprinkler system during a fire. This fire system connection is most commonly found on the exterior of commercial buildings. In the event of a fire, local fire departments will use the FDC to supply water to the fire hose. Fire hose are usually 2 ½” in diameter. FDCs or Fire Department Connections are only part of the essential piece to a complete fire protection system.

Double Detector Check Assembly (Backflow Preventer)

Double Check Detector Assemblies are designed to prevent backflow of non-health hazard substances from city water lines into the fire protection system of a building. DDCA’s or Double Detector Check Valves are also known as “Backflow Preventers”, which are more commonly understood throughout the construction industry. Double Detector Check Assemblies can be found above ground, exposed and usually gated or protected by a cage or metal enclosure. These assemblies are critical to keeping the fire protection system sanitary in the event of a fire.

Excavation and Backfill

Along with the utilities that are found onsite, excavation is required to lay the foundation of the fire protection systems to the building. Underground consists of C 900 PVC Piping and Ductile Iron connections. Fire Sprinkler Companies will usually provide point of connection as far as the connection to the city lines.

We Take Pride in our Projects

Full Service Fire Protection

PEOPLE We Protect

Our Distributors and Suppliers


Our team started in the fire protection industry over 20 years ago. Since then we have grown into a statewide fire protection construction leader. Our team of project managers, engineers, designers, inspectors, installers, and technicians all share a passion for quality work and high standards. Precision Fire Protection understands the need to complete projects with integrity, safety, and precision!


Our mission is to provide our customers with timely, high quality, affordable fire protection services that are guaranteed. We strive to achieve our client’s complete satisfaction. We are relentless in applying the highest ethical standards to ourselves and to our services and in communications with our customers. ​We aim to fulfill that mission in everything we do.


Precision Fire Protection keeps its team together, even when it's not. Just as vital as field personnel’s tools are, our project managers are equipped with the latest software to manage projects. Our project managers send dailies, RFIs, and plan revisions to the cloud so that everyone has access no matter where they are. Being connected is our way of ensuring every project goes smoothly.


Our team of multi-certified managers and supervisors are highly experienced in job safety. Our managers are OSHA certified to handle each project with care and sensitivity to every unique job site. By ensuring on-site safety on every project we work on throughout Southern California, Precision Fire Protection has developed positive relationships with our General Contractors.