Your local plumbing experts in Castro Valley, CA. From emergency response to full repiping, we handle it all.
From 24/7 emergency response to complete repiping, we handle every plumbing need for homes and businesses in Castro Valley, CA.
Clogged drains slow your life down. Our licensed plumbers clear kitchen drains, bathroom drains, main sewer lines, and floor drains using professional hydro-jetting equipment that cleans the entire pipe interior.
Emergency sump pump repair when flooding threatens your basement or crawl space. We diagnose failed floats, clogged intakes, and seized impellers fast — getting your pump back online before water damage spreads.
Backflow testing is required annually in many jurisdictions. We test your preventer, document the results, and submit paperwork to your local water authority — keeping you in compliance and your drinking water safe.
Professional faucet repair and installation that eliminates drips, leaks, and stiff handles. We carry common repair parts on our trucks for same-visit repairs on most faucet brands, plus full installations of new fixtures.
Whole-home and partial repiping to replace aging galvanized, polybutylene, or deteriorated pipes with modern long-lasting materials. Repiping eliminates chronic leaks, low pressure, and discolored water permanently.
When your boiler fails in winter, you need a plumber who understands hydronic systems. Our licensed technicians diagnose and repair all major boiler brands, restoring efficient heat to your home or building fast.
Sewer line repair and replacement for cracked, collapsed, root-infiltrated, and offset pipes. We use camera inspection to diagnose the problem and recommend spot repairs, pipe lining, or full replacement.
Accurate gas leak detection before small leaks become emergencies. We test your entire gas system using professional detection equipment and pressure gauges, identify any leaks, and perform safe code-compliant repairs.
Plumbing emergencies happen day and night. Our 24/7 emergency plumbers arrive quickly with the tools and materials to handle any urgent plumbing situation — protecting your property and restoring service fast.
Trenchless sewer repair replaces damaged sewer lines without digging up your yard, driveway, or landscaping. We use pipe lining and pipe bursting methods to save time, money, and the mess of conventional excavation.
Professional sump pump installation for new construction and pump replacements. We handle the pit setup, discharge line routing, electrical connections, and test the completed installation under load.
Expert slab leak detection and repair using electronic sensors and thermal imaging to pinpoint leaks under your foundation. We perform minimally invasive repairs to protect your structure and stop water waste.
When your water heater reaches the end of its life, we make replacement easy. Our plumbers handle everything — disconnection, removal, installation, and final testing — so you have reliable hot water again fast.
Advanced leak detection using thermal imaging, electronic sensors, and pressure testing to find hidden leaks in walls, floors, and underground. Accurate detection prevents costly water damage and unnecessary demolition.
Licensed gas line repair for natural gas and propane systems. We use pressure testing and calibrated gas detectors to locate leaks and perform safe, code-compliant repairs to restore your gas service.
Professional water line repair and replacement for main supply lines and service connections. We diagnose breaks, corrosion, and leaks, then perform durable repairs or full replacements using quality materials.
Garbage disposal repair, replacement, and installation for kitchen sinks. We fix jammed, leaking, and failed units — or install new disposals with proper P-trap and dishwasher connections.
Fast water heater repair for tank and tankless units. We diagnose and fix pilot light failures, thermostat issues, heating element problems, pressure relief valve malfunctions, and sediment buildup quickly.
Reliable pipe repair throughout your home — from pinhole leaks in copper supply lines to cracked drain pipes and corroded fittings. We diagnose the root cause and fix the problem at the source.
Upgrade to on-demand hot water with professional tankless water heater installation. Our plumbers assess household demand, recommend the right model, and install with all required gas or electrical connections.
When snaking is not enough, hydro jetting clears the pipe completely. Our professional jetters use pressurized water to blast away grease, scale, and root intrusion — restoring full pipe capacity for years.
High-definition sewer camera inspection for residential and commercial properties. Our plumbers document the condition of your sewer line and provide a copy of the footage with our professional assessment.
Grease trap maintenance keeps your kitchen drains flowing and your business compliant with local waste regulations. We provide scheduled pumping, manifesting, and inspection-ready documentation.
Full-service commercial plumbing for restaurants, offices, retail, multi-family, and industrial properties. We handle new construction, maintenance contracts, fixture replacement, and urgent repairs.
Reliable toilet repair and installation for running toilets, phantom flushes, rocking toilets, weak flushes, and leaking seals. We diagnose the root cause and repair or replace components quickly and affordably.
A city of 66,312 residents generates significant demand for plumbing services, especially after severe weather or during peak seasons. Magnet Plumbing maintains the crew capacity and equipment inventory to respond to multiple plumbing emergencies simultaneously when Castro Valley needs us most — whether that is a single residential burst pipe or dozens of frozen pipe calls in one weekend.
We have responded to every type of plumbing scenario across Castro Valley, and that experience informs every decision we make on-site. From the pipe material we recommend to the repair method we choose, our techniques are optimized for the water quality, climate, and building standards that Castro Valley properties face year after year.
Here is what sets Magnet Plumbing apart from other plumbing companies in Castro Valley.
Our plumbers live and work in the communities they serve. They understand local water quality, regional pipe standards, and the specific plumbing challenges common to your area — giving you faster, better solutions.
We use professional-grade pipes, fittings, fixtures, and water heaters rated for long-term performance. Combined with skilled installation, our repairs and replacements are built to hold up for years without repeat problems.
We use thermal imaging cameras, electronic moisture meters, and acoustic listening devices to find hidden leaks behind walls, under slabs, and underground — without tearing into your property unnecessarily.
Whether you own a single-family home, a multi-unit rental, or a commercial building, our plumbers handle projects of any scale. We adapt our approach and equipment to meet the demands of every property type.
We stand behind our work. If a repair or installation does not perform as expected within the warranty period, we come back and make it right at no cost. Your satisfaction is our ultimate measure of success.
Common questions about plumbing services in Castro Valley, CA.
To prevent frozen pipes in Castro Valley, insulate exposed pipes in unheated areas like garages, crawl spaces, and attics. Keep cabinet doors under sinks open during cold snaps. Let faucets drip slightly during freezing temperatures. If a pipe does freeze, call Magnet Plumbing immediately rather than attempting to thaw it yourself to avoid a burst.
Simple repairs like faucet replacement, toilet repair, or drain clearing in Castro Valley often take 1 to 2 hours. More complex jobs like slab leak repair, water line replacement, or water heater installation typically take a half to a full day. Whole-home repiping can take 2 to 4 days. Magnet Plumbing provides a clear time estimate before starting any job.
Burst pipes, gas leaks, sewer backups, and flooding all require immediate emergency plumbing response in Castro Valley. A burst pipe can release hundreds of gallons per hour, and gas leaks pose fire and explosion risks. Magnet Plumbing provides 24/7 emergency plumbing service throughout Castro Valley and surrounding California communities.
When hiring a plumber in Castro Valley, always verify their CA license and insurance. A licensed plumber must pass state examinations and carry liability coverage that protects your property. Magnet Plumbing employs licensed, background-checked plumbers throughout California — call (844) 618-0753 to schedule service or get a free estimate.
Most tank water heaters last 8 to 12 years. Consider replacement when your unit is over 10 years old, produces rusty or discolored water, makes rumbling or popping noises, or requires frequent repairs. Magnet Plumbing offers free water heater assessments to help Castro Valley homeowners decide between repair and replacement.
Trenchless sewer repair in Castro Valley replaces damaged sewer lines using pipe lining or pipe bursting methods — without digging up your yard, driveway, or landscaping. It works for most sewer line problems including cracks, root intrusion, and offset joints. Magnet Plumbing uses camera inspection to confirm trenchless repair is the right approach for your specific line condition.
See what our customers have to say about their experience with Magnet Plumbing.
"Smelled gas in the basement late at night and called the emergency line. A plumber was dispatched within the hour, located the leak at a corroded fitting on the water heater gas line, and repaired it on the spot. They even came back the next day to re-verify with the gas detector. Truly appreciated the care taken."
"Bought a new house and had a pre-purchase sewer camera inspection done. The plumber walked me through the footage and pointed out one section that would need attention in a few years. Honest assessment, no upsell pressure."
"Had a new tankless water heater installed and could not be happier. The plumbers were punctual, clean, and walked me through the warranty and maintenance before leaving. Highly recommend for any water heater project."
We also provide plumbing services in these neighboring communities.