Professional Tankless Water Heater Installation in Sunnyvale, CA
Jet Pipe Plumbing is a Navien-certified installer of tankless water heaters in Sunnyvale, CA, also installing Rinnai, Noritz, and Rheem units for homeowners throughout Cupertino, Santa Clara, and the South Bay.
Experienced & Certified Team
Same-Day Service
Clean & Tidy Work
400+ Five-Star Reviews
Jet Pipe Plumbing provides tankless water heater installation in Sunnyvale, CA, serving homeowners throughout Cupertino, Santa Clara, and the South Bay. As a Navien-certified installer, we also install Rinnai, Noritz, Rheem, and A.O. Smith tankless units, with same-day installation available when booked before 2pm.
Why Homeowners Choose Tankless
Tankless water heaters heat water on demand rather than storing it in a tank, which means continuous hot water and a smaller equipment footprint. They’re a popular upgrade for households that run out of hot water with a standard tank, or that want to free up closet or garage space.
Navien-Certified Installation
Certified to install and configure Navien tankless systems to manufacturer spec.
Same-Day Availability
Call before 2 PM — in most cases we can complete the install the same day.
Gas Line Assessment Included
We size and upgrade the gas supply line if needed — no surprises mid-job.
Venting Designed and Installed
Proper PVC or stainless concentric venting routed to code.
Permit Coordination
We handle permit paperwork and schedule any required inspections.
1-Year Labor Warranty
All installation work is backed by our workmanship guarantee.
Gas Line Sizing and Venting
A proper tankless installation depends on correctly sizing the gas line and venting for the unit’s higher demand compared to a standard tank. Our licensed technicians assess your home’s existing gas line and venting before installation and make any upgrades needed to meet code and support the new unit.
Heat Pump
Water Heater
Rebate Eligible
Upfront Cost
Energy Efficiency
Maintenance
Space
Hot Water
Lifespan
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Navien-Certified Installation
As a Navien-certified installer, we’ve completed manufacturer-specific training on Navien’s tankless line, which helps ensure the unit is installed and configured correctly from day one. We also install Rinnai, Noritz, and Rheem tankless units for homeowners with a brand preference.
Situation | Tankless Fit |
Home with 2+ bathrooms and simultaneous hot water demand | Good fit — size unit to peak demand |
Replacing an aging tank in a home with existing gas service | Good fit — gas line upgrade usually manageable |
Home without existing gas service | Not a fit — we do not install electric tankless |
Very small home or low hot water demand | Tank may be more cost-effective |
ADU or secondary unit requiring independent hot water | Good fit — compact wall-mount works well |
Home in hard water area (most of Bay Area) | Manageable — annual descaling required |
Not sure? Call us and we will give you an honest recommendation based on your home, not the higher-ticket option.
Permits and Same-Day Completion
Tankless installation typically requires a permit, which we pull and manage on your behalf. Many installations can still be completed the same day when booked before 2pm, though more involved gas line or venting upgrades may add time.
Installation Item
Details
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Financing Available
Because a tankless system typically costs more upfront than a standard tank, financing is available for homeowners who prefer to spread the cost of installation over time rather than paying the full amount at once.
1-Year Workmanship Warranty
Every tankless installation includes a 1-year workmanship warranty on our labor, along with registration of the manufacturer’s product warranty, so you have coverage on both the equipment and the installation itself.
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!
Keeping a Tankless Unit Running Well
Tankless units benefit from more frequent upkeep than a standard tank, particularly in areas with hard water. See our tankless maintenance page for descaling and flushing service, or our tankless repair page if your unit is already showing an error code or performance issue.
Locally owned & operated
Focused on quality & relationships
Always clear, honest communication
Water Heater Quote
Get Your Water Heater Quote in a Few Minutes
Tell us about your current unit and your home, and get a personalized installation estimate without waiting for a visit.
Why choose us
Space Savings and Where Units Are Installed
One of the biggest advantages of going tankless is the space it frees up. A wall-mounted tankless unit takes up a fraction of the footprint of a standard tank, which matters in homes with a small utility closet, garage, or crawl space. We evaluate the best mounting location during the initial assessment, taking into account gas line access, venting requirements, and how much clearance the manufacturer requires around the unit.
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 install tankless water heaters throughout Sunnyvale and nearby Cupertino, Santa Clara, San Jose, and Mountain View. Contact us to schedule an installation, or ask how a tankless unit compares to a standard water heater installation.
GALLERY
Recent Tankless Installation Projects
A look at recent tankless installs across the Bay Area.
CONTACTS
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Frequently Asked Questions
How long does a tankless installation take?
Most installations take 3 to 5 hours. Homes that need a gas line upgrade or more complex venting routing may take longer. We give you a time estimate when we assess the job.
Do I need to upgrade my gas line?
Often yes. Tankless units require a larger gas supply than standard tank heaters. We assess your existing line during the quote — if an upgrade is needed, we include it in the flat-rate price.
Can you install any brand of tankless water heater?
We install Navien, Rinnai, Noritz, Rheem, A.O. Smith, and others. We are Navien-certified. If you have a specific brand in mind, call us to confirm.
Do you install electric tankless water heaters?
No. We install gas tankless units only.
What venting is required?
Most modern condensing tankless units use PVC concentric venting. We design and install the venting run as part of the job — this is not an afterthought.
How hard is maintenance on a tankless unit?
Annual descaling is required, especially in hard water areas. We perform this service and can set you up on a yearly schedule. See our tankless maintenance page for details.
Is a permit required?
Yes, in most Bay Area cities. We handle permit coordination and schedule inspections as needed.