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Stop Running Out of Hot Water

Water heater and tankless water heater installation in San Jose for standard and high-demand homes

When your water heater starts leaking onto the garage floor or you run out of hot water halfway through the second shower of the morning, it is time to replace it. Cervantes Construction installs both traditional tank-style water heaters and tankless systems in San Jose homes, sizing each unit based on how many people live there and how much hot water you actually use during peak hours.

This service includes removing the old unit, running new gas and water connections if needed, and installing a system that meets current code and efficiency standards. Tankless units are ideal for homes with limited space or families that need continuous hot water, while tank systems work well for straightforward replacements in homes with existing infrastructure.

If you are upgrading your water heater in San Jose or adding capacity during a remodel, contact Cervantes Construction to discuss sizing and installation options.

How the Installation Is Handled

The process starts with measuring your current setup and confirming whether your gas line and electrical panel can support the new unit in your San Jose home. If upgrades are required, they are included in the estimate before any work begins.

After installation, you will have reliable hot water that does not run out during back-to-back showers, and the system will operate more quietly if you are switching from an older tank model. Gas connections are tested for leaks, and water lines are checked for pressure and temperature consistency.

All work is performed to local code, and permits are pulled when required. If your home is part of a repipe or remodel project, the water heater installation is coordinated with the rest of the work to avoid scheduling conflicts or redundant trips.

Common Questions About Water Heater Replacement

Most homeowners want to know whether they should go tankless, how long the installation takes, and what size unit makes sense for their household.

What is the difference between a tank and tankless system?
A tank system stores hot water and reheats it as needed, while a tankless unit heats water on demand. Tankless units take up less space and provide continuous hot water, but they require adequate gas supply and sometimes electrical upgrades.
How do you determine the right size for my home?
We calculate based on the number of bathrooms, how many people live there, and your peak usage patterns. Undersized units run out of hot water, and oversized units waste energy, so proper sizing matters.
How long does installation take?
Most replacements are completed in a few hours if the connections are compatible. If gas line upgrades or venting changes are needed, it may take a full day.
When should I replace a water heater that still works?
If your unit is over 10 years old and you are planning a repipe or remodel, it makes sense to replace it during the project. Waiting until it fails can cause water damage and rushed decisions.
Do you handle permits and inspections?
Yes. We pull permits when required and schedule inspections to ensure the installation meets all local code requirements in San Jose.

Cervantes Construction has installed water heaters in homes across San Jose, from compact tankless units in condos to large-capacity systems in multi-story properties. If your current system is failing or you are ready to upgrade, get in touch and we will walk you through your options.