Serving Irvine, CA
Irvine's Trusted Plumber — From Woodbridge to Great Park
Irvine is America's largest master-planned community, and its plumbing tells the story of each era it was built. Early 1970s Turtle Rock homes have different needs than 1980s Woodbridge townhomes or brand-new Great Park construction. One issue we see more in Irvine than almost anywhere: polybutylene pipes. If your home was built between 1978 and 1995, this is something you need to know about.
Common Plumbing Issues in Irvine
Irvine developed in waves — Turtle Rock and University Park in the early-to-mid 1970s, Woodbridge and Westpark in the 1980s, Northwood in the 1990s–2000s, and Great Park Neighborhoods from the 2010s onward.
Polybutylene Pipe Failures
This is Irvine's biggest plumbing concern. Homes built in the 1980s–early 1990s (Woodbridge, Westpark, parts of Northwood) often have polybutylene (PB) supply pipes. PB reacts with the chloramine in OC's water supply, becoming brittle and prone to sudden, catastrophic failure. Insurance companies are increasingly refusing coverage for homes with PB pipes. A full PEX or copper repipe is the only real solution.
Hard Water Mineral Buildup
Irvine's water is particularly hard — mineral content accelerates sediment buildup in water heaters (reducing efficiency by up to 30%), clogs aerators, and shortens the life of dishwashers and washing machines. Annual water heater flushes and whole-house water softeners make a real difference.
1970s Copper Pinhole Leaks
Irvine's earliest neighborhoods (Turtle Rock, University Park) now have 50+ years of hard water running through their original copper supply lines. Pinhole leaks in walls and under slabs are increasingly common in these areas.
Slab Leaks from Clay Soil
OC's expansive clay soil shifts seasonally, stressing the copper pipes running beneath concrete slab foundations. Irvine homes across all eras are susceptible, but older neighborhoods with original piping are at highest risk.
Not sure if your Irvine home has polybutylene pipes? We offer free visual inspections — just call and ask. It's the single most important thing you can check in an 80s or 90s Irvine home.
Our Services in Irvine
We provide every residential and commercial plumbing service Irvine homeowners need — from urgent repairs to planned installations and system upgrades.
Residential Plumbing
Complete residential plumbing services from new construction to everyday repairs. We handle everything so your home runs smoothly.
Learn moreDrain Cleaning
Professional drain cleaning that goes beyond the surface. We clear blockages and keep your drains flowing for the long term.
Learn moreLeak Detection & Repair
Hidden leaks waste water and cause damage. Our advanced detection finds leaks fast, and our repairs are built to last.
Learn moreTankless & Water Heater Services
Keep your hot water flowing. Installation, repair, and maintenance for traditional and tankless water heaters.
Learn moreWater Purification
Clean, safe water for your entire home. From filtration systems to reverse osmosis, we improve your water quality.
Learn moreCommercial Plumbing
Full-service commercial plumbing for contractors, property managers, and businesses. From new construction to tenant improvements, we handle projects of any scale.
Learn moreWhy Irvine Homeowners Choose KCB Plumbing
Frequently Asked Questions — Irvine Plumbing
Common questions from Irvine homeowners about plumbing services, repairs, and maintenance.
How do I know if my Irvine home has polybutylene pipes?
Polybutylene (PB) pipes are gray, flexible plastic pipes typically found in homes built between 1978 and 1995 — which includes much of Woodbridge, Westpark, and parts of Northwood. Check exposed pipes in your garage, under sinks, or near your water heater. If you see gray plastic with copper crimp rings, that's likely PB. Call us at (714) 894-6520 for a free visual inspection.
Will my insurance drop me if I have polybutylene pipes in Irvine?
Many insurance companies are increasingly refusing to write or renew policies on homes with polybutylene pipes due to their high failure rate. Some will still insure the home but with exclusions for water damage. If you're buying or selling an Irvine home built in the 1980s-early 1990s, a PB repipe should be part of the conversation. We provide flat-rate, upfront pricing for full repipes.
What causes slab leaks in Irvine homes?
Orange County's expansive clay soil shifts seasonally, stressing the copper pipes running beneath slab foundations. Add 50+ years of hard water corroding pipes from the inside (in older neighborhoods like Turtle Rock and University Park), and you have ideal conditions for slab leaks. Early detection saves money — watch for unexplained water bill increases or warm spots on floors.
How often should I flush my water heater in Irvine?
With Irvine's hard water, we recommend flushing your tank water heater at least once a year to remove mineral sediment buildup. This sediment can reduce your water heater's efficiency by up to 30% and shorten its lifespan significantly. For tankless units, annual descaling is equally important. Call (714) 894-6520 to schedule maintenance — available Monday through Friday, 8 AM to 5 PM.
Need a Plumber in Irvine?
Free phone estimate. Mon–Fri 8 AM – 5 PM.