Trusted by San Francisco homeowners for emergency plumbing, leak detection, and complete plumbing repairs throughout California.
Every plumbing service you need, delivered by licensed professionals who know the San Francisco area.
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.
Professional trenchless sewer line repair for cracks, offsets, and root intrusion. Pipe lining creates a new pipe within the old one, while pipe bursting pulls a new pipe through to replace the failed line completely.
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.
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.
Professional toilet repair and installation. We diagnose running, leaking, rocking, and weak-flushing toilets and restore full performance with quality replacement parts. New installations handled the same way.
A failing sump pump during heavy rain can flood your basement in minutes. Our licensed plumbers respond quickly to repair or replace failed pumps, restore drainage, and protect your property from water damage.
Professional gas line repair performed by licensed plumbers who understand gas system safety. We find the leak, repair or replace the damaged section, and pressure test the line before restoring gas service.
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.
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.
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.
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.
Slab leaks are hidden under your concrete foundation and can cause thousands in damage if left untreated. Our licensed plumbers locate and repair slab leaks quickly with minimal disruption to your home.
Professional garbage disposal installation and repair. We handle electrical connections, mounting flange replacement, and drain line connections for reliable, leak-free kitchen sink drainage.
When a plumbing crisis hits, you need a licensed plumber immediately. We answer emergency calls around the clock and dispatch crews fast — stopping leaks, restoring water service, and preventing further damage.
Professional backflow prevention testing and device installation. Our certified plumbers service residential and commercial properties, protecting your potable water supply from contamination.
Professional tankless water heater installation including new setups and tank-to-tankless conversions. We handle sizing, venting, gas supply upgrades, and permitting for code-compliant installations throughout the country.
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 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.
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.
Professional sewer camera inspection to diagnose blockages, root intrusion, cracks, offsets, and collapse. We show you the video so you can see the problem and make informed decisions about repairs.
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.
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.
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.
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.
Professional water heater replacement for tank, tankless, and hybrid models. We match the right unit to your household needs and install it with all required connections, expansion tanks, and safety components.
The San Francisco metropolitan area spans diverse neighborhoods, building types, and plumbing systems — and Magnet Plumbing has plumbing expertise across all of them. With a population of 803,876, San Francisco is one of the largest markets we serve, and we have invested in local crews who know every corner of the metro.
From older historic districts with cast iron and galvanized plumbing to brand-new subdivisions on the outskirts of San Francisco, our crews adapt their approach to match the specific needs of each property. We stay current on California plumbing code updates, work with all major fixture manufacturers, and maintain equipment inventories that keep your project on schedule.
Here is what sets Magnet Plumbing apart from other plumbing companies in San Francisco.
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 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.
Plumbing emergencies do not wait for business hours and neither do we. Our emergency crews are on call around the clock — burst pipes, gas leaks, and flooding get a fast response any time you call.
Every plumbing job starts with a free, no-obligation estimate. We inspect the problem, explain our findings in plain language, and give you a clear price before starting. No pressure, no surprises.
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.
Common questions about plumbing services in San Francisco, CA.
Chemical drain cleaners can damage older pipes in San Francisco homes, especially PVC, brass, or aging galvanized plumbing. The caustic chemicals can eat through pipe walls over time and are hazardous if they splash on skin or eyes. A professional drain cleaning by Magnet Plumbing is safer, more effective, and prevents pipe damage — costing less in the long run.
Burst pipes, gas leaks, sewer backups, and flooding all require immediate emergency plumbing response in San Francisco. 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 San Francisco and surrounding California communities.
To prevent frozen pipes in San Francisco, 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.
Your main water shutoff valve in San Francisco 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.
When hiring a plumber in San Francisco, 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 San Francisco homeowners decide between repair and replacement.
Real reviews from homeowners we have served across the country.
"Replaced two old toilets with new comfort-height models. The installer was respectful, took his shoes off at the door, and hauled away the old toilets. Small things that make a big difference."
"Magnet Plumbing fixed a leaky kitchen faucet and installed a new toilet in the master bath on the same visit. They were in and out in a few hours and cleaned up everything before they left. Will absolutely use them again."
"Amazing work. Good people. Reliable. On time and efficient. And prices are definitely hard to beat! HIGHLY RECOMMEND!"
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