Trusted by Walnut homeowners for emergency plumbing, leak detection, and complete plumbing repairs throughout California.
Comprehensive plumbing solutions tailored to Walnut properties. Click any service to learn more.
Video sewer inspection reveals exactly what is happening inside your sewer line — no guesswork, no unnecessary excavation. Essential for pre-purchase inspections and diagnosing recurring sewer problems.
Gas leaks are a serious safety hazard. Our licensed plumbers use professional gas detection equipment to find leaks in supply lines, fittings, appliances, and meters — and recommend immediate repairs to protect your family.
Sump pump installation and replacement for basements and crawl spaces prone to flooding. We size the right pump, install primary and battery-backup units, and ensure reliable operation before every rainy season.
Expert faucet repair and installation for dripping, leaking, and hard-to-turn faucets in kitchens, bathrooms, and utility areas. We repair or replace cartridges, O-rings, seats, and stems — or install new fixtures.
Gas line leaks demand immediate professional attention. Our licensed plumbers diagnose and repair gas line failures safely, using proper materials and testing to ensure your gas system is secure and code-compliant.
Thorough drain cleaning that goes beyond surface blockages. We use video inspection and high-pressure water jetting to clear obstructions completely, leaving your drains flowing freely and reducing future buildup.
Professional backflow prevention testing and device installation. Our certified plumbers service residential and commercial properties, protecting your potable water supply from contamination.
Tankless water heater installation for endless hot water without standby energy loss. We size, install, and commission all major tankless brands — and convert tank systems to more efficient tankless setups.
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.
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.
When your garbage disposal jams, leaks, or stops working, our plumbers diagnose the problem fast. We repair what makes sense and replace units that are beyond repair with quality new disposals.
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.
Commercial plumbing needs are different from residential. Our plumbers understand backflow requirements, floor drain regulations, grease trap compliance, and the scheduling demands of active business operations.
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.
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.
Water heater replacement with same-day or next-day installation in most areas. We remove your old unit, recommend the right size and model for your needs, and install your new water heater to code.
Regular grease trap cleaning for restaurants and food service operations. We pump and scrape grease traps on schedule and handle compliance documentation for health department inspections.
Boiler repair and installation for residential and commercial hydronic heating systems. We service gas, oil, and electric boilers for reliable winter heating — diagnosing pressure, circulation, and combustion issues.
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.
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.
Expert pipe repair for residential and commercial properties. We locate leaks and damage accurately, perform durable repairs, and pressure test the system to confirm everything holds before leaving.
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.
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.
No hot water? Our licensed plumbers diagnose and repair water heater problems on the first visit whenever possible. We service all major tank and tankless brands and carry common repair parts on our service vehicles.
Hydro jetting service using high-pressure water to scour the interior of your drain and sewer lines. Removes grease, scale, tree roots, and years of buildup that mechanical snaking cannot reach.
Magnet Plumbing brings professional-grade plumbing technology to every job in Walnut (pop. 26,700). Electronic leak detectors, video pipe inspection cameras, and pressure testing equipment allow us to see inside your plumbing system without guesswork, giving us the information we need to recommend the most effective and cost-efficient solution.
Technology only matters when the plumbers using it are skilled. Our Walnut crews combine advanced diagnostic tools with years of hands-on experience and ongoing training in current plumbing techniques and California code requirements. That combination of technology and expertise is what separates Magnet Plumbing from companies that rely on guesswork.
We are committed to delivering exceptional plumbing services that protect your property and your peace of mind.
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.
Every plumber we send carries a valid state license and full liability insurance. You get peace of mind knowing the work is done legally and that your property is protected if anything goes wrong.
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.
No surprise invoices, no hidden fees. You receive a clear written estimate before any work begins and the final price matches what we quoted — guaranteed. We itemize every cost so you know exactly what you are paying for.
Answers to the most frequently asked plumbing questions from Walnut homeowners.
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 Walnut homeowners decide between repair and replacement.
Signs of a slab leak in Walnut homes include unexplained increases in your water bill, warm or wet spots on the floor, the sound of running water when all fixtures are off, cracks in the foundation or walls, and low water pressure. If you notice these symptoms, call a plumber for professional slab leak detection before the damage worsens.
Burst pipes, gas leaks, sewer backups, and flooding all require immediate emergency plumbing response in Walnut. 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 Walnut and surrounding California communities.
Your main water shutoff valve in Walnut is typically located near the water meter, near the front foundation, or in the basement or utility room. Turn the valve clockwise to close it. If you cannot find your shutoff or it is stuck, call Magnet Plumbing immediately — our emergency crew can help locate and operate the valve to stop water damage.
To prevent frozen pipes in Walnut, 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.
Trenchless sewer repair in Walnut 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.
Real reviews from homeowners we have served across the country.
"Came out the same day to replace a failed sump pump during a storm. Saved our basement. Fair pricing and very fast response."
"Fixed a hidden leak behind the drywall without tearing apart the whole wall. Impressed with how precise they were and how quickly they found it."
"They are the best. They come when they say they will, fair pricing, are attentive to detail, protect the floors, are friendly and professional. Very different from plumbers we have used in the past. Thank you Saul!"
We also provide plumbing services in these neighboring communities.