The Best Plumbing Contractors in San Leandro, CA

Compare the highest-rated plumbing professionals in San Leandro, California. All contractors are licensed, insured, and verified through our rigorous screening process.

#1

All Bay Plumbing

4.8
(280 reviews)
Verified

A highly-rated, family-owned and operated local business known for rapid response times, especially for emergencies. They emphasize clear, upfront pricing and high-quality workmanship for both residential and commercial clients.

14285 Washington Ave, San Leandro, CA 94578

Specialties & Features

Emergency plumbing repairs
Water heater installation and repair
Drain and sewer services

Business Information

Years in Business:15 years
Licensed:Yes
Insured:Yes
#2

Harris Plumbing

4.7
(190 reviews)
Verified

A well-established local contractor with a long history of serving the San Leandro community. They are praised for their experienced technicians, professional conduct, and expertise in handling complex repiping and leak detection projects.

14235 Doolittle Dr, San Leandro, CA 94577

Specialties & Features

Pipe installation and replacement
Leak detection and repair
Bathroom and kitchen plumbing

Business Information

Years in Business:25 years
Licensed:Yes
Insured:Yes
#3

Plumbtree Plumbing & Rooter

4.6
(220 reviews)
Verified

While based in the adjacent city of San Lorenzo, Plumbtree is a major service provider for the entire East Bay, including San Leandro. They offer a comprehensive range of services with a strong focus on customer service and resolving root causes of plumbing issues.

15910 Via Del Sol, San Lorenzo, CA 94580

Specialties & Features

Drain cleaning and sewer services
Residential and commercial plumbing
Water heater installation and repair

Business Information

Years in Business:20 years
Licensed:Yes
Insured:Yes

Why These Are the Top Plumbing Contractors in San Leandro

** The plumbing market in San Leandro is competitive and characterized by a mix of long-standing local family businesses and larger regional companies serving the broader East Bay area. The average quality of service is high, as contractors must compete on reputation and reliability in a densely populated suburban area with a significant number of older homes that require maintenance, repiping, and sewer line updates. The competition helps maintain strong service standards, but also leads to premium pricing for emergency and specialized services. Typical pricing includes a diagnostic/service call fee ranging from $75-$150, with emergency hourly rates from $150-$250+. Major projects like a full water heater replacement can range from $1,200 to $3,500+, and sewer line repairs can easily exceed $5,000 depending on the scope. Consumers are advised to seek multiple quotes for large, non-emergency projects.

High Ratings

4.7+ star average from verified customer reviews

Fully Licensed

All contractors are properly licensed and insured

Proven Experience

10+ years average experience in the industry

Local Experts

Familiar with San Leandro regulations and climate

Frequently Asked Questions About Plumbing in San Leandro

Get answers to common questions about plumbing services in San Leandro, California.

1What are the most common plumbing issues for San Leandro homeowners, and are they seasonal?

The most frequent issues are related to our local hard water, which accelerates mineral buildup in pipes and water heaters, leading to reduced flow and efficiency. Seasonally, the winter rainy season can cause sewer line backups due to root intrusion from mature trees in older neighborhoods, while summer droughts can shift soil and stress underground pipes. Proactive descaling and root barrier treatments are highly recommended.

2How do I verify a plumbing contractor is properly licensed and insured for work in San Leandro?

Always ask for their California State Contractor's License Board (CSLB) number. You must verify it is active and in the correct classification (C-36 Plumbing) on the CSLB website. For work in San Leandro, also ensure they carry general liability and workers' compensation insurance, as this is required by the state and protects you from liability. Reputable local plumbers will provide this information readily.

3Are plumbing permits required for common projects in San Leandro, and who pulls them?

Yes, permits are typically required for significant work like water heater replacements, re-piping, sewer line repairs, and adding new fixtures. The licensed plumbing contractor should always pull the permit from the City of San Leandro's Community Development Department. This ensures the work is inspected for compliance with California Plumbing Code and local amendments, which is crucial for your safety and home value.

4What is the average cost range for a water heater replacement in San Leandro?

For a standard 50-gallon tank water heater replacement, homeowners can expect a range of $1,800 to $3,500, including installation, permit, and disposal. The higher end accounts for tankless units or complex installations to meet California's strict energy efficiency standards (Title 24). Costs are influenced by local labor rates, the need for seismic strapping (required by code), and potential upgrades to venting or gas lines.

5With California's drought regulations, what water-efficient plumbing upgrades are most beneficial for San Leandro homes?

Installing WaterSense-labeled fixtures like high-efficiency toilets (1.28 gallons per flush or less) and low-flow showerheads is highly beneficial. Given Alameda County's ongoing conservation focus, these upgrades reduce water bills and comply with state mandates. We also recommend inspecting and repairing irrigation system leaks, which are a major source of waste, and considering a tankless water heater for its on-demand efficiency.