Your Neighborhood Plumber—Reliable, Fast & Always Ready
Whether it’s a leaking toilet, a burst pipe, or a full sewer line replacement, CPI Service provides professional plumbing services throughout San Jose. Our licensed team delivers expert repairs, installations, and emergency support—right when you need it.
New Customers: Get 5% Off Any Service
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Coupon Rules: Must mention coupon code when scheduling an appointment. Limit 1 per household. Cannot be combined with other offers. New Customers only.
About CPI Service
From minor leaks to major pipe replacements, CPI Service has built its reputation on solving plumbing problems with speed, skill, and integrity. We proudly serve San Jose and nearby communities with a full range of residential plumbing services designed to keep your home running smoothly.
Whether your toilet is constantly running, your water bill has mysteriously spiked, or a burst pipe has flooded your home, our experienced plumbers respond with urgency and professionalism. We bring over 30 years of hands-on experience, cutting-edge tools, and a commitment to honest, clear communication.
We don’t just fix problems—we help prevent them. Our team educates homeowners on what went wrong, how we’ll solve it, and how to avoid costly issues down the road. It’s plumbing done right, backed by a name the South Bay knows and trusts.
Toilet Repair & Installation
Whether it’s clogged, leaking, or just outdated, we can repair or replace your toilet with a new, efficient model. Our team ensures watertight seals, proper installation, and reliable performance from day one.
Burst Pipe Repair
A burst pipe is one of the most urgent and damaging plumbing emergencies. We offer fast-response service to stop the leak, limit the water damage, and repair or replace the damaged pipe safely.
Sewer Line Services
From collapsed lines to invasive tree roots, we offer full sewer line diagnostics and replacement services. Using modern tools and expert techniques, we restore safe, smooth wastewater flow without guesswork.
Why Choose Us?
Plumbing issues can derail your day and damage your home. At CPI Service, we make solving them as smooth and stress-free as possible—with expert workmanship, honest pricing, and fast response every time.
Why local homeowners trust CPI:
- Fully licensed, bonded, and insured plumbing professionals
- 24/7 emergency support for urgent issues like burst pipes
- Honest, flat-rate pricing—no surprise fees
- Long-lasting repairs and expert fixture installations
- Friendly, respectful plumbers who explain your options
- Decades of trusted service in the San Jose area
From small repairs to full system upgrades, we treat your home with care and your time with urgency.
What Our Customers Say
Trusted by San Jose Homeowners for Over 30 Years
We’ve helped thousands of local families resolve plumbing issues with professionalism and peace of mind. See why so many turn to CPI Service for honest plumbing work that stands the test of time.
EXCELLENT Based on 75 reviews Jose Cotto2025-07-13Trustindex verifies that the original source of the review is Google. Had my AC serviced…they fixed my issue and it’s running great. Tilman Wekel2025-07-10Trustindex verifies that the original source of the review is Google. Alex did an excellent job today fixing the blower wheel of our AC unit. Kevin Fukuda2025-07-09Trustindex verifies that the original source of the review is Google. Bungalow Hong was very friendly and thorough when diagnosing the problem. He was very helpful and explained everything to me. Then he was able to correct the problems quickly Heather Wilper2025-07-08Trustindex verifies that the original source of the review is Google. My service technician, Bunhak Hong, was prompt, courteous, and good at his job. I was so happy to get it repaired today. Melveta Brown2025-07-07Trustindex verifies that the original source of the review is Google. Excellent service. Arrived on time was very knowledgeable and answered all my questions. Banhak was my service tech. Bill Hubbard2025-06-27Trustindex verifies that the original source of the review is Google. I have used CPI for both commercial and residential plumbing services for over 20 years! They are the best! Eric Chan2025-06-24Trustindex verifies that the original source of the review is Google. Good Nancy DeFever2025-06-16Trustindex verifies that the original source of the review is Google. Bunhak was a wonderful technician Kartik Rao2025-06-16Trustindex verifies that the original source of the review is Google. I had a great experience with CPI. Unlike many other plumbing services, they charge a fixed price for fixing the problem — no surprise hourly charges. From the start, they were clear and transparent about the total cost, which gave me peace of mind. Most importantly, they were committed to actually solving the issue, not just diagnosing it. The plumber stayed until the job was done right, without rushing or trying to upsell unnecessary services. It's refreshing to work with a company that values quality and customer trust. Highly recommend CPI Plumbing for anyone looking for reliable and honest service. Deepthi Sai2025-06-10Trustindex verifies that the original source of the review is Google. We got a new water heater installed by CPI. Shamir came in to give the quote and explained our options and the process. Sam the plumber came in the next day and took care of the heater installation and bringing it up to latest code. Excellent work. Reasonable prices. Highly recommended!Verified by TrustindexTrustindex verified badge is the Universal Symbol of Trust. Only the greatest companies can get the verified badge who has a review score above 4.5, based on customer reviews over the past 12 months. Read more
New Customers
5%
OFF Any Service
Coupon Rules: Must mention coupon code when scheduling an appointment. Limit 1 per household. Cannot be combined with other offers. New Customers only.
Plumbing Repair
$47
OFF
Coupon Rules: Must mention coupon code when scheduling an appointment. Limit 1 per household. Cannot be combined with other offers. New Customers only.
Video Inspection
FREE
Coupon Rules: Must mention coupon code when scheduling an appointment. Limit 1 per household. Cannot be combined with other offers. New Customers only.
FAQ
Have Plumbing Questions? Here’s What You Need to Know
Plumbing problems can feel overwhelming—but you don’t have to face them alone. These common questions can help you know what to expect and how CPI Service can help.
What plumbing services do you offer?
We handle everything from clogged toilets and leaking pipes to full sewer line replacements and plumbing emergencies. Whether it’s a routine repair or a serious issue, we’re equipped to fix it.
Do you offer emergency plumbing repairs?
Yes. If you’re dealing with a burst pipe, major leak, or active water damage, call us right away. We prioritize emergency plumbing calls and can be on-site quickly to stop the damage and begin repairs.
How do I know if I have a hidden leak or burst pipe?
Signs include sudden spikes in your water bill, wet spots on walls or floors, reduced water pressure, or mold smells. If you notice any of these, call us for an inspection before the problem gets worse.
Is it better to repair or replace an old toilet?
If your toilet is over 15 years old or constantly needing repairs, a replacement is often more cost-effective and water-efficient. We’ll assess your system and recommend the right fix for your budget and needs.
Do you handle sewer line issues?
Absolutely. Whether it’s a blockage, a break, or a full line collapse, we provide video inspections and expert replacement services for residential sewer systems.
Let’s Fix It—Fast and Professionally
Plumbing issues don’t have to be a headache. CPI Service is here to respond quickly, fix things the right way, and restore your peace of mind—whether it’s a leaky toilet, burst pipe, or anything in between.
Call us today to schedule expert plumbing services with the local pros who care about doing it right.