San Jose's Tankless Water Heater Installation Specialists
Professional tankless water heater installation in San Jose. Endless hot water, lower energy bills.
Tankless Water Heater Installation in San Jose, CA
When your old tank water heater starts showing its age with lukewarm showers, rising utility bills, or rust at the base, it's time to consider making the switch to tankless.
Venture Plumbing has installed hundreds of tankless water heaters throughout San Jose, from Eichler homes in Willow Glen to newer construction in Evergreen and ADUs across the 95125 and 95124 zip codes.
Our team is factory-certified to install leading brands like Rinnai and Navien, and we handle everything from permits to final inspection so you can start enjoying endless hot water without the hassle.
When you're ready to upgrade to a tankless water heater, choosing the right system and getting it installed correctly makes all the difference. Venture Plumbing delivers expert tankless water heater installation service across San Jose, including:
Tank Water Heater Replacement
- Professional in-home assessment
- Expert Tankless System Selection and Installation
- Gas line and Venting Upgrades
- Code Compliance and Permitting
- System testing And Walkthrough
Reach out to us now at
(408) 539-9104 or send us a message online for professional tankless water heater installation service in San Jose, CA.
Why Many San Jose Homeowners Are Going Tankless
Running Out of Hot Water At The Worst Moments
There's nothing quite like being in line for a morning shower and discovering the tank is empty. Traditional water heaters store a limited supply of water, typically 40 to 50 gallons, and once it's gone, you're waiting 30 to 45 minutes for recovery. For families in San Jose's busy households, that math just doesn't work.
Hard Water Cuts Your Tank's Lifespan Short
San Jose Water Company delivers moderately hard water throughout Santa Clara County (around 7 to 10 grains per gallon in most neighborhoods). That mineral content creates sediment buildup inside tank water heaters, forcing the system to work harder and fail sooner. We've replaced plenty of 8-year-old tanks throughout Cambrian Park and Almaden Valley that should have lasted 12 years or more. Hard water drives up your monthly PG&E bill while delivering less reliable performance.
Your Tank Eats Up Valuable Space
In a region where ADUs and converted garages are becoming essential for housing options, that bulky 60-gallon tank in your utility closet represents 12 to 16 square feet you could use for something else. Tankless units mount on a wall and free up floor space, which is a practical consideration when every square foot counts in Bay Area real estate.
The longer you wait with an aging water heater, the more you risk a potential failure that floods your garage or utility room. Proactive replacement beats an emergency installation every time.
Our Tankless Installation Process
Comprehensive In-Home Assessment
Every tankless installation starts with an in-home evaluation by one of our licensed plumbers. We assess your household's hot water demand based on the number of bathrooms, fixtures, and appliances that use hot water simultaneously. A family of four in a three-bathroom Almaden home has different requirements than a retired couple in a Rose Garden bungalow, and we size your unit accordingly.
We also evaluate your existing gas line capacity. Tankless water heaters require more BTUs than traditional tanks, and many homes, especially those built before the 1990s, need a gas line upgrade to support the higher demand. Our team handles this work in-house, pulling the necessary permits through the City of San Jose's Building Division.
Factory-Certified Installation
Venture Plumbing is authorized to install Rinnai, Navien, A.O. Smith, and Noritz tankless systems. Our technicians complete manufacturer training to ensure your unit is installed to factory specifications, which matters for both performance and warranty coverage. We don't take those shortcuts, if you cut corners on installation, and you risk voided warranties and callback issues.
Installation typically takes one full day for a straightforward replacement and two days if gas line upgrades or electrical work is required. We coordinate all necessary permits and schedule the City inspection so you don't have to manage multiple contractors.
Proper Venting & Exhaust Configuration
Tankless units produce exhaust that must be properly vented, either through existing flue pipes (if compatible) or through new dedicated venting to the exterior. Our team evaluates your home's layout and recommends the most efficient venting solution. For Eichler homes and mid-century properties with flat roofs, we have extensive experience navigating the unique venting challenges these designs present.
System Configuration & Testing
Before we leave, we configure your new tankless system for optimal performance, set the temperature to your preference, and walk you through the basic operation and maintenance requirements. We test flow rates at multiple fixtures to confirm the unit is delivering as expected. You'll also receive documentation for your warranty registration and our direct contact information if questions come up later.
Why Go Tankless? Here Are The Benefits:
Endless Hot Water On Demand
Tankless systems heat water as it flows through the unit, no storage tank means no running out. Fill the soaking tub, run the dishwasher, and take a shower, all without worrying about being surprised by cold water.
Energy Savings That Add Up
Tank water heaters work around the clock to keep 40 to 50 gallons hot, even when nobody's using it. Tankless units only fire when you turn on the tap. Most San Jose homeowners see 20% to 30% reductions in water heating costs, savings that compound year after year.
Longer Equipment Lifespan
With proper maintenance, tankless water heaters last 20 years or more, nearly double the lifespan of a traditional tank. Given San Jose's hard water conditions, that extended durability represents real value over time.
Space Efficiency
Wall-mounted tankless units free up floor space in utility closets, garages, and ADUs. For homeowners converting spaces or maximizing usable square footage, this practical benefit often tips the decision.
Rebate Opportunities
High-efficiency tankless models may qualify for rebates through San Jose Clean Energy or PG&E's energy efficiency programs. We can help you identify applicable incentives during your consultation.
What Our Customers Say
Why San Jose Homeowners Choose Venture Plumbing
Family Owned & Operated
We're not a franchise sending a different technician every time. Our team knows San Jose homes. From the Eichlers in Willow Glen to the custom builds in Silver Creek, we've been serving this community for over 15 years.
15+ Years Of Local Experience
We've installed tankless water heaters in every type of San Jose home imaginable: Eichlers with radiant floor heating in 95125, century-old Victorians in Willow Glen, modern townhomes in North San Jose, and custom homes throughout Almaden Valley. Our experience means we anticipate challenges before they become problems.
Licensed & Insured Experts
Every technician on our team is licensed, trained, and background-checked. We're fully insured and stand behind our work.
Fully Transparent Pricing
We provide detailed written estimates before any work begins. No surprise charges, no hidden fees. The price we quote is the price you pay.
Tankless Water Heater Installation Throughout San Jose and the Surrounding South Bay
FAQ
How much does tankless water heater installation cost in San Jose?
Installation costs typically range from $3,500 to $6,500, depending on the unit size, brand, and whether gas line upgrades are needed. We provide free in-home estimates with detailed pricing before any work begins.
How long does tankless water heater installation take?
Most installations complete in one day. If your home requires gas line upgrades or significant venting modifications, the project may extend to two days. We'll give you a clear timeline during your consultation.
What size tankless water heater do I need for my San Jose home?
Sizing depends on how many fixtures you'll use simultaneously and the incoming water temperature (groundwater in San Jose averages around 57°F). A two-bathroom home typically needs a unit rated for 8-10 GPM, while larger homes with multiple showers running at once may require higher capacity. We calculate this precisely during your home assessment.
Do tankless water heaters work well with San Jose's hard water?
Yes, but maintenance matters. San Jose's moderately hard water (7-10 grains per gallon) can cause scale buildup in any water heater. We recommend annual flushing for tankless units to maintain efficiency and extend lifespan. Many homeowners pair their tankless installation with a water softener for optimal protection.
Will I need to upgrade my gas line for a tankless water heater?
Possibly. Tankless units require more BTUs than traditional tanks. Homes with ¾-inch gas lines may need an upgrade to handle the demand. We evaluate your existing gas infrastructure during the initial assessment and include any necessary upgrades in your estimate.
What brands do you install?
We're certified installers for Rinnai, Navien, A.O. Smith, and Noritz, the industry's leading tankless manufacturers. We'll recommend the best fit for your home's needs and budget.
Ready to Upgrade to Endless Hot Water?
Schedule your tankless water heater installation today. Our team will assess your home, recommend the right unit, and provide transparent pricing with no obligation, and no pressure.
