Reliable Water Heater Repair in Sunnyvale, CA
Jet Pipe Plumbing provides water heater repair in Sunnyvale, CA for tank and tankless units, serving Santa Clara, San Jose, and the South Bay with a free diagnostic on every repair call.
Experienced & Certified Team
Same-Day Service
Clean & Tidy Work
400+ Five-Star Reviews
Jet Pipe Plumbing provides water heater repair in Sunnyvale, CA, serving homeowners throughout Santa Clara, San Jose, and the South Bay. Whether your tank is leaking, your pilot light won’t stay lit, or you’ve run out of hot water unexpectedly, our in-house licensed technicians diagnose the issue and give you a flat-rate repair quote before starting any work.
Common Water Heater Problems We Fix
The most common issues we repair include a water heater that won’t heat, inconsistent or lukewarm water, unusual noises from the tank, a leaking tank or fitting, a pilot light that won’t stay lit, and a tripped thermostat or heating element on electric units. Each of these can often be repaired without replacing the entire unit.
Same-Day Repair Service
Call before 2 PM — we arrive the same day.
Flat-Rate, Upfront Pricing
You approve the price before we start. No surprises on the invoice.
1-Year Labor Warranty
Every repair is backed by our workmanship guarantee.
Manufacturer Warranty Preserved
We document repairs properly so your manufacturer warranty stays valid.
All Water Heater Types
Gas tank, gas tankless, and heat pump — we repair them all.
Free Diagnostic with Any Repair
We inspect your system and explain what went wrong before any work begins.
Free Diagnostic Before Any Repair
Every repair call starts with a free diagnostic, so you know exactly what’s wrong and what it will cost to fix before we begin. This helps you decide with confidence whether a repair makes sense or whether it’s time to consider a replacement.
Symptom
Likely Cause
Still unsure? Get a Free Diagnostic & Expert Recommendation — no pressure.
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Repair vs. Replacement
Not every issue calls for a full replacement. Our technicians give you an honest assessment of whether a repair will hold up long-term, especially for older tanks nearing the end of a typical 8 to 12 year lifespan, or whether installing a new unit is the more cost-effective option.
Leaking Water Heaters
A leaking tank is one of the more urgent issues we respond to, since it can cause water damage if left unaddressed. We identify whether the leak is coming from a fitting, the pressure relief valve, or the tank itself, and repair or replace accordingly.
Certified & Licensed Technicians
CA Plumbing License #1139033. No subcontractors — just experts.
Same-Day Availability
Call us before 2 PM and get same-day water heater service.
Transparent, Flat-Rate Pricing
No hidden fees. No upselling. Know the cost upfront.
Clean, Respectful Service
Shoe covers, clean workspaces, and full cleanup after the job.
Free Diagnostic with Any Service
We’ll inspect your system and explain your options — free of charge.
Over 200 5-Star Reviews
Real homeowners. Real results. See what others are saying!
Tankless Water Heater Repair
Tankless units have different failure points than a standard tank, including error codes, scaling buildup, and ignition issues. See our dedicated tankless water heater repair page for more on how we diagnose and fix tankless-specific problems.
No Hot Water Emergencies
Losing hot water entirely is one of the most common reasons South Bay homeowners call us. We prioritize these calls and, when booked before 2pm, can often complete the repair the same day.
Flat-Rate Repair Pricing
Every water heater repair includes a flat-rate quote before we start, backed by a workmanship warranty on the repair itself. There are no hidden fees added once the job is underway.
Locally owned & operated
Focused on quality & relationships
Always clear, honest communication
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We're Available Today.
Licensed South Bay plumbers.
Honest pricing, no surprises.
When to Call for Emergency Repair
Certain water heater problems shouldn’t wait for a scheduled appointment. If you notice water pooling around the base of the tank, smell gas near the unit, or lose hot water completely with no warning, call us right away rather than waiting to see if the issue resolves on its own. We prioritize these calls over routine repairs and can often get a technician on-site the same day to stop any active leak or address a gas safety concern.
1-Year Workmanship Warranty
C-36 Licensed & Insured
In-House Certified Plumbers Only
Satisfaction Guarantee
Fast Callback Response
Free On-Site Diagnostic
What Our Customers Say
Service Areas
Serving the Entire South Bay Area
We proudly serve homeowners in:
Serving Sunnyvale and the South Bay
We repair water heaters throughout Sunnyvale and nearby Santa Clara, San Jose, Mountain View, and Cupertino. Contact us for a free diagnostic, or ask about our maintenance service to help avoid future repairs.
GALLERY
Recent Water Heater Projects
Take a look at some of our recent installs across the Bay Area
CONTACTS
No Hot Water? We're Just a Call Away
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Frequently Asked Questions
How much does water heater repair cost?
The cost depends on what failed. Minor repairs (thermocouple replacement, pilot assembly, pressure relief valve) typically run less than a full component swap like a heating element or gas valve. We give you the exact price before any work begins.
How quickly can you come out?
For most jobs in the South Bay and Peninsula, we can arrive the same day if you call before 2 PM. We will confirm availability when you call.
Do you charge for the diagnostic?
We provide a free diagnostic with any repair. If you decline the repair after the diagnostic, a service call fee applies — we will confirm this when you book.
Can you repair any brand of water heater?
We work on all major brands — Navien, Rheem, Bradford White, A.O. Smith, State, American Standard, and others. If you are not sure whether we service your unit, call us and we will confirm.
My water heater is 12 years old. Should I repair or replace it?
Age alone is not a reason to replace. We look at the type of failure, the condition of the tank, and the cost of the repair relative to replacement. We will give you an honest assessment on-site.
Do you repair gas tankless water heaters?
Yes. We repair gas tankless units from Navien, Rinnai, Noritz, Rheem, and others. Note that we do not install electric tankless water heaters, but we do repair gas tankless systems.
Is the repair guaranteed?
Yes. All labor is covered by our 1-year workmanship warranty. If the repair fails within that period, we return and fix it at no charge.