What should I do if I have a burst pipe?

Shut off your main water valve immediately to minimize damage and call an emergency plumber. Turn off electrical appliances near the leak, open faucets to drain water, and our team will arrive quickly to make emergency repairs and water mitigation recommendations.

How do I know if my sewer line needs repair or replacement?

Signs include recurring backups, slow drains across multiple fixtures, foul odors in the yard, or sinkholes. We perform video camera inspections to assess pipe condition and recommend repair, relining or replacement based on the footage.

Are your plumbers licensed and insured in California?

Yes. Cardinal Plumbing Solutions employs licensed, insured plumbers who comply with California and Castro Valley, CA local codes. We provide proof of licensing and insurance upon request and stand behind our workmanship.

Do you offer water heater services for tankless systems?

Absolutely. We install, repair and maintain both tankless and conventional water heaters. From sizing and energy-efficient upgrades to pressure relief valve checks and thermostat calibration, we ensure reliable hot water year-round.

How often should I have my drains cleaned?

For most homes, annual drain cleaning prevents buildup and reduces the risk of clogs. Homes with older pipes, large families, or heavy grease use may benefit from bi-annual maintenance to keep drains flowing smoothly.

Can you detect leaks behind walls or under slabs?

Yes — we use non-invasive electronic leak detection and infrared technology to pinpoint leaks behind walls, under floors and beneath slabs. Early detection reduces repair costs and prevents mold and structural damage.

Do you provide commercial plumbing services?

Yes. We serve local businesses, property managers and HOAs with commercial plumbing, tenant improvement plumbing, backflow prevention, grease trap service and emergency response. Contact us for a tailored service plan and fast, reliable repairs.

Trusted Plumber in Castro Valley, CA 94546

Cardinal Plumbing Solutions - Castro Valley's trusted plumbers for 24/7 emergency repairs, drains & water heaters. Fast response—call (669) 239-7545!.

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Castro Valley Cardinal Plumbing Solutions Services

Top-Rated Plumbing Services in Castro Valley, CA — Fast, Local & Licensed

Serving neighborhoods across Castro Valley, Cardinal Plumbing Solutions handles both residential and commercial plumbing with fast, local response. Our licensed, insured technicians repair burst pipes, clear stubborn drains, replace sewer lines, and install or service traditional and tankless water heaters. We use advanced leak detection and diagnostic tools to identify problems quickly and minimize property damage. With same-day service, transparent estimates, and clear communication, we make plumbing repairs straightforward and stress-free—schedule online or call (669) 239-7545 for a free on-site assessment.

Residential Cardinal Plumbing Solutions Services

Professional Residential Plumbing Services in Castro Valley, CA.

Commercial Cardinal Plumbing Solutions Services

Commercial Plumbing Services in Castro Valley, CA.

We Offer All Plumbing Services

We provide a complete set of plumbing services in Castro Valley, CA. Call Us for fast scheduling or emergency service.

Bathtub Installation in Castro Valley, CA

Call Us At (669) 239-7545. Professional bathtub installation in Castro Valley, CA for remodels and new builds.

Drain Installation in Castro Valley, CA

Call Us At (669) 239-7545. Drain installation in Castro Valley, CA for kitchens, bathrooms, and outdoor systems.

Faucet Installation in Castro Valley, CA

Call Us At (669) 239-7545. Professional faucet installation in Castro Valley, CA for kitchens, bathrooms, and more.

Garbage Disposal Repair in Castro Valley, CA

Call Us At (669) 239-7545. Garbage disposal repair in Castro Valley, CA for jams, leaks, and power issues.

Gas Line Repair in Castro Valley, CA

Call Us At (669) 239-7545. Gas line repair in Castro Valley, CA for leaks, corrosion, and safety testing.

Plumbing Installation or Replacement in Castro Valley, CA

Call Us At (669) 239-7545. Complete plumbing installation or replacement in Castro Valley, CA.

Sewer Installation in Castro Valley, CA

Call Us At (669) 239-7545. Sewer installation in Castro Valley, CA for homes and businesses.

Shower Installation in Castro Valley, CA

Call Us At (669) 239-7545. Shower installation in Castro Valley, CA for remodels and new bathrooms.

Sink Installation in Castro Valley, CA

Call Us At (669) 239-7545. Sink installation in Castro Valley, CA for kitchens, bathrooms, and more.

Sink Repair in Castro Valley, CA

Call Us At (669) 239-7545. Fast sink repair for leaks, loose basins, damaged drains, and faulty traps.

Toilet Installation in Castro Valley, CA

Call Us At (669) 239-7545. Professional toilet installation in Castro Valley, CA for homes and businesses.

Water Heater Installation in Castro Valley, CA

Call Us At (669) 239-7545. Water heater installation in Castro Valley, CA for tank and tankless systems.

Water Pipe Installation in Castro Valley, CA

Call Us At (669) 239-7545. Water pipe installation in Castro Valley, CA for reliable water flow.

Bathtub Repair in Castro Valley, CA

Call Us At (669) 239-7545. Bathtub repair in Castro Valley, CA for leaks, cracks, and faulty drains.

Drain Repair in Castro Valley, CA

Call Us At (669) 239-7545. Drain repair in Castro Valley, CA for clogs, leaks, and backups.

Faucet Repair in Castro Valley, CA

Call Us At (669) 239-7545. Faucet repair in Castro Valley, CA for leaks, drips, and low water flow.

Gas Line Installation in Castro Valley, CA

Call Us At (669) 239-7545. Gas line installation in Castro Valley, CA for homes and businesses.

Plumbing Inspection in Castro Valley, CA

Call Us At (669) 239-7545. Plumbing inspection in Castro Valley, CA for homes and businesses.

Plumbing Repair in Castro Valley, CA

Call Us At (669) 239-7545. General plumbing repair in Castro Valley, CA for leaks, clogs, and broken pipes.

Sewer Repair in Castro Valley, CA

Call Us At (669) 239-7545. Sewer repair in Castro Valley, CA with trenchless and traditional methods.

Shower Repair in Castro Valley, CA

Call Us At (669) 239-7545. Shower repair in Castro Valley, CA for leaks, clogs, and pressure issues.

Sink Repair in Castro Valley, CA

Call Us At (669) 239-7545. Sink repair in Castro Valley, CA for leaks, clogs, and broken fixtures.

Toilet Repair in Castro Valley, CA

Call Us At (669) 239-7545. Toilet repair in Castro Valley, CA for clogs, leaks, and running toilets.

Water Heater Repair in Castro Valley, CA

Call Us At (669) 239-7545. Water heater repair in Castro Valley, CA for tank and tankless systems.

Water Pipe Repair in Castro Valley, CA

Call Us At (669) 239-7545. Water pipe repair in Castro Valley, CA for leaks, bursts, and corrosion.

What Makes Us The Best Plumbing Service in Castro Valley, CA

24/7 Emergency Service

Available around the clock for burst pipes, major leaks, sewer backups and other urgent plumbing issues. Our emergency plumbers in Castro Valley, CA respond quickly to protect your home or business.

Transparent, Upfront Pricing

Clear estimates with no hidden fees. We explain repair options and costs so you can make informed decisions — from quick fixes to full system replacements.

Licensed & Insured Technicians

All Cardinal Plumbing Solutions technicians are licensed, insured and background-checked. We follow local Castro Valley, CA building codes and deliver professional workmanship every time.

Advanced Diagnostics & Leak Detection

We use camera inspection, electronic leak detection and hydro-jetting to accurately diagnose and resolve drain, sewer and hidden water leaks without unnecessary excavation.

Water Heater, Sewer & Fixture Experts

Expert installation, repair and maintenance of tankless and conventional water heaters, sewer line repair, toilet and faucet services, and whole-home plumbing upgrades.

Satisfaction & Safety Guaranteed

We stand behind our work with warranties and a satisfaction guarantee. Our team follows safety protocols and leaves your property clean after every job.

A Better Way to Get Plumbing Help

We make quality plumbing service straightforward and dependable. Here's how we deliver value:

Easy Scheduling & Same-Day Visits

Book online or by phone and get same-day or next-day service windows that fit your schedule—especially important for emergencies and active repairs.

Code-Compliant Plumbing Work

All repairs and installations comply with all the local codes. We pull permits when required and leave work areas clean.

Upfront Estimates & Flexible Payment

Get a written estimate before work starts, and ask about financing or card payment options for larger repairs and replacements.

Save on Plumbing Repair Costs with Preventive Maintenance

We make quality plumbing affordable with upfront pricing, flexible payment options, and maintenance plans that prevent costly emergency calls. Protect your Castro Valley home or business and get real value—call (669) 239-7545 to discuss budget-friendly options and book your appointment.

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Our Process

Step 1: Tell Us About the Problem

Call or book online and describe what you're seeing—leaks, low water pressure, strange noises, or a complete outage. Well prioritize emergencies and recommend next steps.

Step 2: Scheduled Arrival & On-Site Diagnosis

A licensed plumber will arrive on time, perform a full diagnostic using cameras, leak detectors, and pressure tests, then explain the cause and repair options.

Step 3: Repair, Replace, or Maintain

After you approve the estimate, we perform repairs with quality parts. From pipe repair and water heater replacement to trenchless sewer fixes, we focus on durable solutions.

Step 4: Final Walkthrough & Cleanup

We test the system, review the work with you, and leave your property clean. For follow-up or scheduling, call (669) 239-7545.

Call today to schedule your plumbing service
keep your home safe and dry without delays!

CALL TODAY

(669) 239-7545

Cities We Serve

Neighborhoods we serve in Castro Valley

Lake Chabot

Five Canyons

Palomares Hills

Castro Valley Village

Columbia

Stanton

Vannoy Acres

Proctor

Independent

Ashland

Zip Codes we serve in Castro Valley

94546

94552

FAQs about Plumbing Services in Castro Valley, CA

Testimonials

Needed an emergency plumber for a burst pipe in San Jose, CA. Cardinal Plumbing arrived fast, fixed the leak, and prevented major damage. Highly recommend.

Professional team — they replaced our water heater in Almaden Valley efficiently and cleaned up after themselves. Fair price and great communication.

After sewer backups in our Downtown San Jose, CA building, Cardinal Plumbing performed a camera inspection and repaired the line without disruptive trenching. Excellent work.