Fire Sprinkler Installation • Inspection • Repair • ADU Specialists

Fire Sprinkler System Service in Altadena

If your Altadena home is equipped with a fire sprinkler system, keeping it properly maintained is essential for long-term safety. Preferred Fire Systems, Inc. provides fire sprinkler inspections in Altadena, fire sprinkler repairs, and residential fire sprinkler certifications for homeowners, buyers, real estate agents, and property managers.

Whether you're a long-time resident, in escrow, or managing a property in Altadena, Pasadena, or the Foothill Communities, our licensed team ensures your fire sprinkler system remains reliable, compliant, and ready to protect your home.

Routine inspections help prevent costly damage and give you peace of mind knowing your Altadena fire sprinkler system is functioning properly.

• Altadena fire sprinkler inspections & performance testing

• Fire sprinkler leak repair in Altadena

• Replacement of damaged or outdated sprinkler heads

• Sprinkler head relocation or additions for remodels and ADUs

• Check valve service and replacement

• Pressure-relief valve (PRV) testing and replacement

• Control valve repairs

• Fire sprinkler riser upgrades and maintenance

• 24/7 emergency fire sprinkler service in Altadena

If you are building a new home or constructing an ADU in Altadena, CA, Preferred Fire Systems, Inc. provides new residential fire sprinkler installations, designed to meet all Altadena and L.A. County Fire Department regulations.

Our systems are built to NFPA 13D, NFPA 13R (when required), and local code standards. We handle design, permitting, installation, and final inspection—making your Altadena fire sprinkler installation seamless and fully compliant.

Fire sprinkler systems:

• Automatically control or extinguish fires

• Provide essential escape time

• Greatly reduce property loss and damage

• Increase home and ADU value

• Meet California and Altadena fire sprinkler requirements

Most new Altadena ADUs and newly constructed single-family homes must include a residential fire sprinkler system.

1. System Design & Engineering

• Hydraulic calculations for Altadena water systems

• Full piping layout & isometric drawings

• Plan submittal packages for L.A. County Fire Department

• NFPA 13D/13R compliant design

• Coordination with Altadena builders, contractors, and homeowners

2. Complete Installation

• PEX or CPVC piping

• Low-profile residential sprinkler heads

• Proper spacing & coverage for rooms and vaulted ceilings

• Installation of check valves, PRVs, inspectors tests, and all system components

• Clean, efficient, code-compliant workmanship

3. ADU Fire Sprinkler Installations in Altadena

We specialize in:

• New ADU construction

• Garage conversion ADUs

• Attached and detached ADUs

• Tie-ins to existing home sprinkler systems (if approved)

• Independent ADU riser systems

4. Final Testing & Certification

• System flushing & operational testing

• Flow and pressure verification

• Riser and component inspection

• Support with Altadena Fire Inspection & final approvals

• Over 19 years of fire sprinkler experience

• Licensed C-16 fire protection contractor

• Expertise in both residential and commercial fire sprinkler systems

• Fast, clean installations

• Strong understanding of Pasadena, Altadena, San Gabriel Valley, and Foothill fire codes

• Fair, competitive pricing

Whether you need fire sprinkler repairs, inspections, or new ADU sprinkler installation in Altadena, we’re here to help.

Contact Preferred Fire Systems, Inc. today to schedule an inspection or request a free estimate.