Plumbing services in San Mateo, CA

Trusted Plumbing Services in San Mateo, CA

Licensed plumbers for emergencies, slab leaks, drain cleaning & water heater services serving San Mateo and surrounding communities in California.

Licensed & Insured 4.6-Star Rated 24/7 Emergency Service Serving San Mateo
11,571+ Projects Completed
11,304+ Happy Customers
22,441+ 5-Star Reviews
9+ Years Experience

Our Plumbing Services in San Mateo

Every plumbing service you need, delivered by licensed professionals who know the San Mateo area.

Water Line Repair

Water line breaks can disrupt your entire home's water supply. Our licensed plumbers repair or replace damaged main lines and service connections quickly, restoring full water pressure and flow to your property.

Sump Pump Repair

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.

Emergency Plumber

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.

Trenchless Sewer Repair

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.

Sump Pump Installation

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.

Boiler Repair

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.

Water Heater Repair

Expert water heater repair that restores your hot water fast. From faulty thermostats and pilot light issues to anode rod replacement and sediment flushing, we fix the problem at the source for lasting results.

Repiping

If your home suffers from frequent leaks, low pressure, or discolored water, repiping may be the solution. We replace your entire water supply system with modern pipe materials and restore full pressure and water quality.

Grease Trap Cleaning

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.

Tankless Water Heater Installation

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.

Garbage Disposal

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.

Gas Line Repair

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.

Toilet Repair

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.

Drain Cleaning

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.

Water Heater Replacement

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.

Sewer Camera Inspection

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.

Backflow Testing

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.

Gas Leak Detection

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.

Pipe Repair

Professional pipe repair for leaks, corrosion, and breaks in supply lines, drain lines, and waste pipes. Our licensed plumbers diagnose the cause and perform lasting repairs using quality materials.

Slab Leak Repair

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.

Sewer Line Repair

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.

Faucet Repair

A dripping faucet wastes hundreds of gallons per month. Our licensed plumbers diagnose and repair kitchen, bathroom, and utility faucets of all brands and types — stopping leaks and restoring smooth operation.

Hydro Jetting

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.

Commercial Plumbing

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.

Leak Detection

Find hidden leaks before they cause serious damage. Our leak detection specialists use thermal cameras and electronic listening devices to locate leaks behind walls, under slabs, and underground with precision.

Licensed Plumbers in San Mateo, CA

For a city the size of San Mateo (pop. 101,680), plumbing problems range from routine faucet repairs to complex slab leaks, multi-unit repiping, and commercial system failures. Magnet Plumbing has invested in the diagnostic equipment, licensed personnel, and material inventory to handle every scenario — no matter how straightforward or challenging.

Our San Mateo, CA plumbers carry thermal imaging cameras, electronic leak detectors, and video inspection equipment on service vehicles so we can diagnose problems accurately on the first visit rather than returning multiple times. Fast, accurate diagnosis means faster repairs and lower total costs for San Mateo homeowners and property managers.

Commercial plumbing and sink installation in San Mateo

Why San Mateo Homeowners Choose Magnet Plumbing

Licensed expertise, transparent pricing, and rapid response — the Magnet Plumbing difference for San Mateo homeowners.

Quality Materials & Workmanship

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.

Same-Day Service Available

We understand your time is valuable. For most plumbing jobs, we offer same-day or next-day scheduling so you are not left waiting days for a plumber to show up. Emergency calls are prioritized immediately.

Advanced Leak Detection

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.

Upfront Transparent Pricing

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.

Local Plumbing Experts

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.

Frequently Asked Questions

Common questions about plumbing services in San Mateo, CA.

How do I prevent frozen pipes in San Mateo, CA?

To prevent frozen pipes in San Mateo, 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.

How can I tell if I have a slab leak in my San Mateo home?

Signs of a slab leak in San Mateo 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.

How much does a plumber cost in San Mateo, CA?

Plumber rates in San Mateo typically range from $100 to $250 per hour depending on the type of work and time of day. Common jobs like drain cleaning run $150 to $300, while slab leak repair and repiping projects cost significantly more. Magnet Plumbing provides free estimates so you know the full cost before any work begins.

How long does a plumbing repair take in San Mateo, CA?

Simple repairs like faucet replacement, toilet repair, or drain clearing in San Mateo 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.

What plumbing emergencies require immediate service in San Mateo?

Burst pipes, gas leaks, sewer backups, and flooding all require immediate emergency plumbing response in San Mateo. 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 Mateo and surrounding California communities.

How do I shut off my water in a plumbing emergency in San Mateo?

Your main water shutoff valve in San Mateo 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.

What Our Customers Say

Honest feedback from homeowners who trusted Magnet Plumbing with their plumbing projects.

★★★★★

"Installed a new sump pump in our basement before hurricane season and I am so glad I did. The install was clean, the pump runs quietly, and they explained the battery backup option clearly. Great experience."

— Crystal W.
★★★★★

"Main water line burst and we had a river in the front yard. They isolated the break, got the water back on within a few hours, and replaced the section cleanly the next day. Excellent emergency response."

— Greg A.
★★★★★

"Fast response, fair price, and they cleared a stubborn bathroom sink clog I had been fighting for a week. Will definitely call again."

— Samantha K.

Nearby Cities We Serve

We also provide plumbing services in these neighboring communities.

Find Us in San Mateo

Need a Plumber in San Mateo, CA?

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