Commercial Plumbing Services in San Jose, CA
Licensed commercial plumbers providing 24/7 emergency and scheduled services across San Jose, including leak detection, drain clearing, water heater installation, and repiping with compliant materials, transparent pricing, and state-approved standards.


- Licensed & Insured - CSLB #1101278
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Your Go-To Local Plumbing Experts in San Jose

Need a certified, reliable commercial plumber in San Jose, available 24/7, 365 days a year? CPI Service is the city’s trusted choice for commercial plumbing that’s fast, compliant, and built for complex systems. Whether it is an emergency sewer backup at midnight or a scheduled repiping project on a weekend, CPI Service delivers consistent, high-quality service with licensed technicians ready to respond when your business needs it.
Serving commercial properties throughout San Jose, CPI Service’s licensed team handles everything from leak detection and drain clogs to water heater installation and full-system repiping. Every job is completed using state-approved materials, fully documented, and performed to meet or exceed local plumbing codes, ensuring safety, efficiency, and long-term performance. All CPI Service technicians are licensed under CSLB License #1101278 and trained to perform work in compliance with California’s commercial plumbing regulations.
Call CPI Service at (408) 549-8181 for commercial plumbing services in San Jose. Our local dispatch team will schedule your visit, answer your questions, and connect you with a licensed expert tailored to your property’s plumbing needs. We focus on results, not runaround, earning the trust of businesses across industries through transparent pricing and dependable scheduling.
Affordable Plumbing Service Options
CPI Service understands that managing a commercial property in San Jose comes with tight budgets and operational constraints. That is why we offer affordable, flexible pricing models and promotional savings designed to ease upfront investment, without compromising on quality or compliance. Our pricing is always transparent and written in advance, making it easy for San Jose business owners to plan repairs or upgrades without financial surprises.
Coupon Deals & Other Discounts
Special Offers & Promotions
$47 OFF
- Valid for first-time customers
- Available for all Commercial Plumbing repair services
- No restrictions, get reliable repairs at a discount.
New Customers
5% off on any service
- First-time customers only
- Valid 24/7 throughout the year
- Silver service plan at no charge for the first year
Plumbing Services We Offer For San Jose Businesses

Emergency Commercial Plumbing Service
When plumbing emergencies impact your business in San Jose, CPI Service is ready to respond immediately. Our 24/7 emergency plumbing service ensures fast action, minimizing downtime and preventing further damage. Whether it is a burst pipe in an office or flooding in a restaurant, our skilled technicians arrive with fully stocked vehicles to quickly resolve the issue, allowing your business operations to continue smoothly.
- 24/7 emergency plumbing for businesses
- Rapid response with fully equipped service vehicles
- Expertise in plumbing systems for offices, restaurants, schools, etc.
- Trusted by property managers and large facilities
- Minimizing downtime and preventing operational disruption

Plumbing Repair
CPI Service provides expert plumbing repairs for commercial properties in San Jose, addressing valve replacements, cracked pipes, pressure issues, and malfunctioning fixtures. We use commercial-grade components to ensure durable, long-lasting solutions. San Jose building managers rely on our team for same-day repairs that comply with California plumbing codes, minimizing downtime and preventing repeat service calls.
- Valve replacements and pipe repairs
- Pressure issue resolution and fixture repairs
- Commercial-grade components for lasting results
- Same-day service to minimize disruption
- Compliance with California plumbing codes

Drain and Sewerage Services
CPI Service offers expert drain and sewer services for businesses in San Jose, providing routine and emergency solutions for blocked sinks, slow floor drains, and full-system backups. We specialize in sewer line inspections using video scoping, particularly for businesses in older areas like Japantown and Downtown, where infrastructure may be aging. Our services include drain jetting, line snaking, and grease trap management, ensuring your systems remain efficient and operational.
- Emergency and routine drain services
- Sewer line inspections using video scoping
- Drain jetting and line snaking
- Grease trap management for businesses
- Scheduled maintenance solutions for older infrastructure

Water Heater Service
CPI Service installs and maintains both tank and tankless commercial water heaters in San Jose, ensuring compliance with city energy codes. Whether your property is a salon, restaurant, or clinic, we deliver consistent temperature control, quick recovery rates, and energy-efficient performance. We also handle thermostat issues, pressure relief valves, and sediment buildup to keep your water heater functioning optimally.
- Tank and tankless water heater installation and maintenance
- City energy code compliance
- Thermostat and pressure relief valve troubleshooting
- Sediment buildup solutions
- Quick recovery rates and energy-efficient performance

Toilet Commercial Plumbing
Toilet plumbing issues like clogs, constant running, leaks, and water waste in public restrooms or employee areas can lead to customer complaints and increased costs. CPI Service specializes in toilet installation, flange and wax ring replacement, and dual-flush system upgrades for commercial bathrooms throughout San Jose. We also retrofit older toilets to meet ADA compliance and enhance water efficiency.
- Toilet installation and flange/wax ring replacement
- Dual-flush system upgrades for commercial bathrooms
- Retrofit services for ADA compliance
- Water efficiency solutions for older toilets
- Addressing clogs, leaks, and running issues in restrooms

Bathtub Commercial Plumbing
Bathtub plumbing issues, though uncommon in general business settings, often arise in clinics, spas, and care facilities. CPI Service specializes in repairing drainage problems, cracked surfaces, and overflow issues, as well as installing accessible tub systems to meet health and safety standards specific to San Jose’s wellness sector.
- Drainage problem repairs and cracked surface fixes
- Overflow issue resolution for tubs in clinics and spas
- Installation of accessible tub systems
- Compliance with health and safety standards
- Specialized services for San Jose’s wellness industry

Shower Commercial Plumbing
Shower plumbing issues in gyms, hotels, and employee locker rooms require specialized attention. CPI Service installs, repairs, and maintains shower systems, addressing problems like low pressure, faulty mixing valves, and clogged drains. We also install touch-free temperature controls to meet sanitation and user safety requirements in commercial buildings across San Jose.
- Shower system installation, repair, and maintenance
- Low pressure and faulty mixing valve solutions
- Clogged drain repairs for commercial showers
- Installation of touch-free temperature controls
- Compliance with sanitation and safety regulations for businesses

Leak Detection
Hidden leaks can lead to costly damage, but CPI Service offers precise leak detection using thermal imaging, acoustic listening devices, and pressure testing. We locate leaks inside walls, slabs, or ceilings without damaging your space. For high-rise commercial properties in San Jose, we conduct zoned inspections to minimize operational interruptions and ensure minimal disruption to your business.
- Thermal imaging, acoustic listening, and pressure testing
- Non-invasive leak detection in walls, slabs, and ceilings
- Zoned inspections for high-rise commercial properties
- Minimizing disruption to business operations
- Accurate, cost-effective leak identification and solutions

Faucets & Fixtures
Faucet drips and fixture malfunctions can impact usability and increase utility costs. CPI Service repairs, replaces, and upgrades all types of commercial faucets and fixtures, including touchless systems, wall-mounted spouts, and industrial utility sinks. San Jose clients trust us for both functional repairs and restroom modernization, ensuring efficient and modern plumbing solutions for their businesses.
- Repair and replacement of commercial faucets and fixtures
- Installation of touchless faucet systems and wall-mounted spouts
- Upgrades for industrial utility sinks
- Restroom modernization for enhanced functionality
- Solutions to reduce utility costs and improve usability

Hydro Jetting
CPI Service offers high-powered hydro jetting to clear severe clogs in commercial sewer lines across San Jose. This service is especially beneficial for restaurants, food prep facilities, and older buildings dealing with tree root intrusion. Unlike basic snaking, hydro jetting restores the full pipe diameter, providing a deeper clean and ensuring longer-lasting results for your plumbing system.
- High-powered hydro jetting for severe sewer line clogs
- Ideal for restaurants, food prep facilities, and older buildings
- Removes tree root intrusion and tough debris
- Restores full pipe diameter for improved flow
- Long-lasting results to keep systems clean and efficient

Garbage Disposal
CPI Service installs and services heavy-duty garbage disposals for breakrooms, cafeterias, and prep kitchens in San Jose. We address motor failures, jammed blades, and full unit replacements, ensuring your disposal system runs smoothly. After repairs, each unit is tested for quiet, effective operation and code compliance, keeping your commercial kitchen efficient and compliant with local standards.
- Installation and repair of heavy-duty garbage disposals
- Motor failure and jammed blade repairs
- Full unit replacements for optimal performance
- Post-repair testing for quiet, effective operation
- Code compliance to meet local standards

Repiping
CPI Service provides expert repiping services for outdated or corroded pipes in San Jose. Whether it’s segmental or whole-building copper repiping, our team is equipped to handle aging office spaces or remodel projects. We replace galvanized and polybutylene lines with modern copper or PEX systems, ensuring safety, compliance, and long-term reliability. Our services include pressure testing and inspections to guarantee the integrity of your new system.
- Segmental and whole-building copper repiping
- Replacement of galvanized and polybutylene pipes with copper or PEX
- Pressure testing and thorough inspections for safety
- Ideal for office spaces and remodel projects
- Compliance with local building codes and standards
Why Choose CPI Service For Your Businesses – The Local Plumber San Jose Trusts
CPI Service is the go-to provider for commercial plumbing in San Jose, offering fast, reliable solutions backed by professional expertise. Our fully licensed and insured team ensures clear pricing, swift response times, and dependable performance to keep your plumbing system running smoothly with minimal disruption to your business operations.

- Licensed & Certified Plumbing Contractors
- Upfront, Transparent Pricing
- Mobile Plumbers Ready to Dispatch
- Quality Workmanship and Materials
- Same-Day Service with Fully Stocked Trucks
- Customer Satisfaction
What Our Business Clients Say About Us in San Jose
Had the plumber Daniel come to my condo today for a clogged toilet. He spent almost two hours snaking with a camera my drain and pulled out a huge clog of tree roots. He knew exactly what he was doing and did a wonderful job. I would recommend this company very much.
Ron K.
Great, reliable, and timely service at a reasonable price. I shopped around quite a bit before landing on CPI. Their rates were competitive, they responded promptly, and their plumber fixed a few issues quickly and without much fuss. I’ll definitely be calling them again the next time we have issues!
Allan Huynh
CPI Service was sent to my home by my condominium association. They agreed to a very early morning appointment and the gentleman arrived exactly on time. He went through the problem very methodically to see where the problem was. Something that no one else could figure out was taken care of in half an hour. I would very definitely recommend them.
Fern F.
Our Commercial Plumbing Project Gallery
Explore our Commercial Plumbing Project Gallery, featuring a range of successful projects across San Jose. See how we’ve provided efficient, reliable plumbing solutions for businesses, ensuring optimal performance and minimal disruption to operations.




Meet Our Certified Technicians
Meet Our Certified Technicians at CPI Service, with over 35 years of experience in commercial plumbing across San Jose. Our skilled professionals are committed to providing top-notch service, ensuring your plumbing system is efficient, reliable, and fully compliant with all local regulations.










Our Commercial Plumbing Resources
About CPI Service – San Jose’s Plumbing Specialist
Since 1986, CPI Service has been a trusted, family-owned plumbing contractor serving San Jose businesses. Fully licensed, bonded, and insured, we specialize in plumbing repairs, installations, and system upgrades that meet San Jose’s local codes and infrastructure needs. Our technicians offer fast dispatch, accurate diagnostics, and transparent pricing, ensuring high-quality service with no hidden fees.
- Locally and family-owned with over 35+ years
- 24/7 plumbing services for businesses
- Code-compliant, cost-effective solutions
- Reliable diagnostics and high-quality workmanship
- Trusted by San Jose businesses

How Does Our Commercial Plumbing Process Work in San Jose?
Initial Call & Appointment Scheduling
Your service journey starts with a quick call, web form, or online booking. A CPI coordinator will gather key details about your property, the issue you’re facing, be it a clog, leak, or equipment installation, and schedule a time that works best for your business. Same-day appointments are available across San Jose for urgent needs.
On-Site Inspection & Diagnosis
Our licensed technician arrives on time, conducts a thorough inspection, and diagnoses the issue using industry-grade tools. Whether it’s a blocked main line or low water pressure in a multi-unit building, we identify the root cause clearly and explain the repair path.
Transparent Estimate and Service Approval
Before any work begins, we provide a detailed, written estimate covering labor, materials, and any potential add-ons. We explain the scope in plain language, answer questions, and only proceed with your approval, ensuring full transparency and cost clarity.
Repair/Installation by Licensed Technicians
Once approved, our team carries out the repair or installation using certified methods and durable materials. From repiping systems in office parks to installing tankless water heaters in retail units, we complete every job in alignment with San Jose’s commercial plumbing codes.
Testing and Cleanup
After completing the job, we test all affected systems to confirm full functionality, leak-free performance, and safety compliance. Our team cleans the workspace thoroughly, ensuring your property is left as clean, or cleaner, than we found it.
Follow-Up & Support
We stand behind every service call. If you have questions, experience new issues, or need future system reviews, CPI Service provides ongoing support and warranty-backed services. You’re not just booking a fix, you’re partnering with a dedicated San Jose plumbing team that prioritizes long-term reliability.
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- 1-Hour Response Available
- We Guarantee Our Work
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San Jose Commercial Plumbing FAQs
What is Commercial Plumbing?
Commercial plumbing refers to the installation, repair, and maintenance of plumbing systems in non-residential buildings such as offices, retail spaces, medical facilities, and multi-tenant properties. Unlike residential plumbing, it must account for larger water usage, complex pipe networks, multiple fixtures, and stricter code compliance. At CPI Service, we specialize exclusively in commercial plumbing solutions tailored to San Jose businesses, ensuring both functionality and regulatory alignment.
How much does Commercial Plumbing cost?
Costs for commercial plumbing in San Jose can vary based on project size, system complexity, and materials used. Small repairs (like faucet or valve fixes) may start around $150–$300, while larger jobs (such as repiping or commercial water heater installations) can range from $2,000 to $15,000+. CPI Service provides clear, written estimates upfront, no hidden charges, just reliable, transparent pricing.
How often should commercial plumbing systems be inspected?
For optimal performance and code compliance, CPI recommends a full system inspection at least once per year. High-use properties like restaurants, schools, or medical facilities may require biannual inspections to prevent backups, leaks, or contamination risks. Regular inspections help identify minor issues early, saving San Jose businesses from major repair costs down the line.
Are there specific plumbing codes for commercial properties in San Jose?
Yes. All commercial plumbing work in San Jose must comply with the California Plumbing Code and local city amendments. These codes dictate pipe sizing, material types, fixture installations, and water conservation requirements. As a CSLB-licensed contractor, CPI ensures that all work we perform meets or exceeds these standards. We handle permits, inspections, and compliance reviews on your behalf.
What are common signs of a plumbing leak in a commercial property?
Typical signs of plumbing leaks include unexplained spikes in water bills, mold growth, musty odors, visible wall stains, and low water pressure. Commercial buildings in San Jose may also experience slab leaks or underground pipe failures, which can be harder to detect. CPI Service uses non-invasive thermal and acoustic leak detection tools to pinpoint problems before they escalate into costly structural damage.
Book a Local Plumbing Service For Your Business in San Jose Now!
Contact CPI Service at (408) 549-8181, submit our online booking form, or request a callback to schedule commercial plumbing services in San Jose. Whether dealing with an urgent leak, planned fixture upgrade, or routine inspection, our licensed local team is fully equipped for same-day repairs, installations, and diagnostics. We confirm a convenient time and dispatch a certified technician who understands San Jose’s commercial systems, codes, and building layouts, respecting your time and property.