
Find the Best Toilet Repair & Replacement Contractors for Your Business
No obligation • Fast responses • Nationwide coverage
- Home
- Toilet Repair & Replacement
- California
- San Francisco

Why you can trust Search a Plumber
Search a Plumber is a leading United States resource for finding and evaluating professional plumbing services. Our team researches licensing, experience, and customer feedback to create unbiased, fact-driven overviews. Companies cannot pay to change ratings or placement, ensuring homeowners get trustworthy information.
Search providers near you
Top Toilet Repair & Replacement Contractors in San Francisco, California Ranked
A properly functioning toilet is essential for any San Francisco home or business. When issues arise-from a persistent leak to a complete breakdown-finding a reliable professional for toilet repair or replacement is crucial. This guide helps you understand common problems, typical solutions, and what to expect when hiring a service provider in the Bay Area, so you can make an informed decision and restore your bathroom's functionality quickly.

Advanced Plumbing & Drain
3450 Sacramento St #204, San Francisco, CA 94118
Advanced Plumbing & Drain is a locally owned plumbing company serving San Francisco, CA. They provide a range of plumbing services for both residential and commercial clients, including water heater repair, drain cleaning, leak detection, toilet repair, and garbage disposal repair. The company is equipped to handle general plumbing repairs and emergency plumbing needs. Their plumbers are available 24/7 to address issues such as clogged drains, leaking faucets, and broken fixtures, ensuring timely assistance for all plumbing concerns.

Roto-Rooter Plumbing & Water Cleanup
1780 Whipple Rd Ste 203G, Union City, CA 94587
Roto-Rooter Plumbing & Water Cleanup provides comprehensive plumbing services in San Jose, CA, specializing in residential and commercial plumbing solutions. Their offerings include sewer and drain cleaning, water heater repair and installation, leak detection, gas line installation, and trenchless sewer repair. The company is equipped to handle emergency plumbing situations with 24/7 availability, ensuring prompt response to issues like burst pipes and sewer backups. With extensive experience and advanced technology, Roto-Rooter addresses complex plumbing challenges efficiently. They also offer floodwater cleanup and mold remediation services, supporting property restoration after water damage. Serving the San Jose area and nearby communities, Roto-Rooter is a licensed and insured provider known for its broad range of plumbing capabilities and emergency service availability.

Service Pros Plumbers, Inc.
1320 Willow Pass Rd, Concord, CA 94520
Service Pros Plumbers, Inc. is a family-owned plumbing company serving Oakland, CA, with over 25 years of experience. They provide a wide range of plumbing services for residential and commercial customers, including water heater repair and installation, drain cleaning, sewer line replacement with trenchless options, leak detection, and gas line installation. Their licensed plumbers also offer whole-house repiping to improve water pressure and system efficiency. Service Pros Plumbers offers 24/7 emergency plumbing services to address urgent issues such as burst pipes and clogged drains promptly.

SplashFix Plumbing
387 Newman Dr, South San Francisco, CA 94080
SplashFix Plumbing is a plumbing service provider based in San Francisco, CA, offering a range of services including drain cleaning, leak detection, and toilet repair. They focus on general plumbing repairs and emergency plumbing services, ensuring that plumbing systems in homes are maintained for comfort and functionality. The team is known for using quality materials and techniques to deliver reliable plumbing solutions with attention to detail and professionalism.

ASAP Plumbing Pros
san francisco
ASAP Plumbing Pros provides plumbing services in San Francisco, CA, and San Mateo County. They specialize in drain cleaning, sewer line repair, leak detection, toilet repair, and garbage disposal repair. The company offers 24/7 emergency plumbing services to address urgent issues at any time. Their licensed plumbers back their work with industry-leading warranties and focus on customer satisfaction.
Common Toilet Problems in San Francisco Homes
San Francisco's unique blend of historic homes and modern buildings presents a variety of common toilet issues. Understanding these problems is the first step toward a solution.
- Leaks: Leaks can originate from the tank, the bowl, or the base. A leaking tank is often due to a worn-out flapper, a faulty fill valve, or a misadjusted float arm1 2. A leak at the base of the toilet usually signals a failed wax ring or a compromised flange seal, which can lead to water damage on your bathroom floor3 4.
- Constant Running or Ghost Flushing: If you hear water running intermittently or the toilet seems to refill on its own, this "ghost flushing" is typically caused by a flapper that no longer seals properly or a fill valve that needs adjustment or replacement1 5.
- Frequent Clogs: While a plunger can handle minor blockages, recurring or severe clogs may indicate a deeper problem in the drain line or an issue with the toilet's internal trapway, especially in older plumbing systems2 6.
- Wobbly Toilet: A toilet that rocks or feels unstable is more than just an annoyance. It almost always means the wax ring seal beneath it is broken, which can allow sewer gases and water to escape. This requires immediate attention3 4.
- Seismic Shifts: Given the city's seismic activity, shifting foundations and pipes can occasionally affect toilet alignment and connections, requiring professional assessment and potential re-securing7.
Repair vs. Replacement: Making the Right Choice
Deciding whether to fix your existing toilet or install a new one depends on several factors. Here's a general guideline to help you decide.
Opt for toilet repair when:
- The issue is isolated and simple, like replacing a flapper, fill valve, or supply line.
- The toilet is relatively new and water-efficient.
- There is no visible damage to the porcelain (cracks or chips).
- The total repair cost is significantly lower than the price of a new fixture and installation1 8.
Consider toilet replacement when:
- The toilet is old (often 20+ years), inefficient, and wastes a substantial amount of water with each flush.
- You are facing constant repairs, indicating the fixture is nearing the end of its service life.
- The porcelain is cracked, which is a sanitation hazard and cannot be reliably repaired.
- You want to upgrade to a modern, low-flow model to improve water efficiency and potentially qualify for local rebates1 8 9.
Understanding Repair and Replacement Procedures
A professional will follow a systematic approach to resolve your toilet issue, whether it's a simple fix or a full installation.
For Common Repairs:
- Leaking Tank: The technician will diagnose the source, often replacing the flapper, fill valve, or adjusting the float mechanism to stop the water flow1 2.
- Leaking Base: This is a more involved repair. The toilet must be carefully removed, the old, failed wax ring scraped away, and a new wax ring or modern rubber seal installed. If the flange (the pipe fitting in the floor) is damaged, that will need repair or replacement as well3 4.
- Clogs: For tough clogs that a plunger can't clear, a plumber will use a specialized auger or snake to break up the blockage within the toilet's trap6.
For a Full Replacement:
- Shutoff & Removal: The water supply is turned off, the tank is drained, and the old toilet is disconnected and removed.
- Preparation: The old wax ring is cleaned off, and the flange is inspected and repaired if necessary.
- Installation: A new wax ring is placed on the flange. The new toilet is set in place, bolted down securely (without overtightening to avoid cracking), and connected to the water supply with a new flexible supply line.
- Testing: The water is turned back on, the tank is filled, and multiple flushes are performed to check for leaks and ensure proper operation.
Find the perfect toilet repair & replacement contractors for your needs
Get personalized recommendations and expert advice
Materials and Modern Fixtures
The materials used in repairs and replacements impact longevity, efficiency, and cost.
- Seals & Gaskets: The traditional wax ring is still widely used to create a watertight seal between the toilet and the drain flange. Modern alternatives include rubber or foam gaskets. Inside the tank, rubber flappers and tank-to-bowl gaskets are common1 3.
- Valves and Internals: Plastic fill valves (like those from Fluidmaster) are standard for their reliability and corrosion resistance. Flush valves and trip levers are also typically made of durable plastic or metal alloys1 10.
- Supply Lines: Flexible, braided stainless steel supply lines are preferred for their durability and ease of installation compared to old rigid copper lines.
- New Toilet Fixtures: Today's standards focus on water conservation. High-efficiency toilets (HETs) use 1.28 gallons per flush (GPF) or less, a significant improvement over older models that used 3.5 to 7 GPF. Styles include one-piece (easier to clean) and two-piece (more common) designs10.
Cost Considerations in San Francisco
Service costs in San Francisco are typically higher than the national average due to elevated labor rates, the cost of living, and potential permit requirements. The following are general price ranges based on recent data3 7 8 9 11.
- General Repair Service Call: For standard repairs like fixing a running toilet or clearing a stubborn clog, expect to pay between $150 and $400, with many jobs averaging $250-$300.
- Specific Repair Costs:
- Replacing a wax ring or repairing a flange: $225 - $350 (includes toilet removal and re-installation).
- Replacing a fill valve, flapper, or supply line: $100 - $250.
- Toilet Replacement (Installation Labor): Installing a new toilet you provide typically costs $200 to $500+ for labor. The price of the new toilet fixture itself is separate and can vary widely from $150 for a basic model to over $1,000 for high-end or designer units.
- Labor Rates: Plumber hourly rates in San Francisco range from $100 to $230 or more.
- Permits: In some cases, particularly for replacements in major renovations or commercial settings, a permit may be required, which can add $100 to $900 to the total project cost.
Finding a Qualified Professional
For toilet services, especially in a city with older infrastructure like San Francisco, hiring a licensed and insured plumber is highly recommended. Look for professionals with specific experience in toilet repair and installation, positive customer reviews, and clear, upfront pricing. They can ensure the job is done correctly, up to current code, and with a warranty on their workmanship, giving you peace of mind.
Frequently asked questions
Sources
Footnotes
-
Toilet Repair in San Francisco - Magic Plumbing - https://www.magicplumbing.com/toilet-repair/ ↩ ↩2 ↩3 ↩4 ↩5 ↩6 ↩7
-
Residential Plumbing - Brisbane, San Francisco, Daly City & Colma - https://www.bayarearotorooter.com/residential-plumbing-bay-area/ ↩ ↩2 ↩3
-
How much does toilet repair cost in 2024? - Yelp - https://www.yelp.com/costs/toilet_repair ↩ ↩2 ↩3 ↩4 ↩5
-
Reliable Toilet Repair & Installation Services in San Francisco - https://genteelplumbers.com/toilet-repair-installation/ ↩ ↩2 ↩3
-
Toilet Install, Repair and Replacement San Francisco - CPI Service - https://cpiservice.com/toilet-plumbing-services/ ↩
-
Toilet Repair in San Francisco, CA - SHG Plumbing - https://shgplumbing.com/toilet-repair-san-francisco/ ↩ ↩2
-
How Much Does a Plumber Cost in San Francisco? [2026 Data] - https://www.angi.com/articles/plumber-cost/ca/san-francisco ↩ ↩2
-
Toilet Repair Cost (2026) | Average Prices and ... - Modernize - https://modernize.com/plumbing/toilet-repair-cost ↩ ↩2 ↩3
-
Cost Factors for Toilet Repair vs Replacement: Key Considerations - https://www.fastresponseplumbingsf.com/cost-factors-for-toilet-repair-vs-replacement/ ↩ ↩2
-
How Much Does It Cost to Repipe a House in California - https://cycloneplumbingusa.com/how-much-does-it-cost-to-repipe-a-house-in-california/ ↩ ↩2
-
How much does toilet installation cost in 2024? - Yelp - https://www.yelp.com/costs/toilet_installation ↩