Plumber in Diamond Bar, CA
Licensed & insured plumbing, HVAC & water heater services in Diamond Bar. Same-day appointments available. Family-owned since 1966.
Plumbing & HVAC Services We Offer in Diamond Bar
Your Trusted Plumber in Diamond Bar, CA
Diamond Bar's hillside neighborhoods and master-planned communities were mostly developed from the 1970s through the 1990s, and the plumbing installed in that era is now reaching a critical age. Pomona Valley Plumbing regularly serves Diamond Bar homeowners in communities like The Country Estates, Diamond Bar Village, and properties along Diamond Bar Boulevard — handling slab leaks, aging water heaters, corroded supply lines, and HVAC systems due for replacement.
Diamond Bar's hilly terrain can complicate sewer line runs and drain grades, which is why our camera inspection services are especially popular here. We identify root intrusion, bellied lines, and corrosion issues before they become expensive emergencies. For HVAC, Diamond Bar properties near the 57 and 60 freeway corridors face some of the valley's worst summer heat — making reliable AC a priority.
Why Diamond Bar Homeowners Choose Us
- Same-day and emergency service available 24/7
- Flat-rate, upfront pricing — no hidden fees
- CA Licensed & fully insured (Lic #1068534)
- Background-checked, uniformed technicians
- 5.0-star Google rating — thousands of satisfied customers
- Family-owned since 1966 — we live in this community too
Ready to schedule service in Diamond Bar? Call us at 909-764-3214 or request a free quote online.
Reviews from Diamond Bar Neighbors
"Suspected a slab leak under our living room — low water pressure and a warm spot on the floor. Pomona Valley found it fast with their equipment and repaired it the same day. Great team."
"AC went down during a heat advisory in The Country Estates. They sent a tech that same afternoon and had it running by evening. Parts were on the truck — no waiting days for a repair."
Frequently Asked Questions — Plumber in Diamond Bar
Yes — we service all Diamond Bar neighborhoods including Tres Hermanos, South Pointe, Diamond Bar Village, and the hillside communities along Diamond Bar Boulevard. Our technicians know Diamond Bar's geography well.
Homes built in Diamond Bar during the 1980s boom commonly have original water heaters nearing end-of-life, ABS plastic drain lines that can crack or separate, and HVAC systems due for replacement. We recommend a whole-home plumbing inspection if you haven't had one in the last 5 years.
Low water pressure in Diamond Bar is often caused by a failing pressure regulator valve (PRV), mineral buildup in pipes, or a partially closed main shutoff. We diagnose and repair all three quickly. Hillside properties in Diamond Bar can also experience pressure issues due to elevation — we can install booster pumps where needed.
Yes. Given Diamond Bar's hot summers and occasional cold winter nights, reliable AC and heating are essential. We service all major HVAC brands, handle refrigerant recharging, and replace aging systems. We can also assess if your ductwork needs cleaning or sealing, which dramatically improves efficiency.
Yes — same-day service is available in Diamond Bar for most plumbing needs. For true emergencies (burst pipes, gas leaks, sewage backups), we treat the call as priority and dispatch immediately, 24 hours a day.