Starting From Scratch
Installing a water heater where none exists yet is a different job than a like-for-like swap. Here's when it applies.
We'll ask about the space: new construction, an addition, or a spot that's never had a water heater. We'll also ask about existing gas, electrical, and venting access so we know what to bring.
We evaluate clearance, code requirements, and sizing for the space, then walk you through the unit and setup that fits. Once you approve the plan and pricing, we install and test everything before we consider it done.
We confirm the unit is producing hot water at the correct temperature and pressure, verify the installation meets code, and handle any required permit sign-off. We'll walk you through basic care for the new unit.
Full-Service Installation
A new installation is the one chance to get sizing right before habits form around a unit that can't keep up. We plan for how the space will actually be used and handle every piece of the permit and code process.
We size every installation to your household's real usage, not a generic rule of thumb. If the new unit isn't keeping up, call us and we'll make it right.
You'll get itemized pricing before any work starts, including any new gas, electrical, or venting work required. No surprises on the invoice.
It's tempting to install whatever size water heater was used in the last house on the plan, but two homes with the same square footage can have very different hot water demand depending on bathroom count, tub size, and whether a laundry room shares the load. We size based on your actual layout, not a builder's default spec sheet.
Getting it right at installation matters more than it seems. An undersized unit creates a daily frustration that's hard to fix without redoing the work, while a unit sized correctly the first time just works.
Water heater installations in San Antonio typically require a permit, especially for gas units or anything touching venting and electrical work. Skipping that step can create problems later, from failed home inspections to insurance complications after a leak.
We handle the permit process as part of every installation:
Did you know that approximately 9-13% of our service calls are to come out to fix other companies' mistakes?
From Downtown to the Suburbs
PlumbSmart installs water heaters for new construction, additions, and first-time setups across San Antonio, from tight downtown lots to larger new builds in the suburbs.
Diane Mcelroy
Recent Google review
I am having a weird issue with intermittent dampness in my garage. Roger spent about 1.5 hours trying to locate the problem. He assured me it was not a plumbing problem and told me not to worry about the service call.
Andrew Schaffrinna
Recent Google review
Joey was extremely knowledgeable and friendly. Excellent service, excellent advice, went above and beyond by providing me with recommendations on how to prevent future issues. Highly recommend.
Kristi Lopez
Recent Google review
So happy with our new system! The team was absolutely fantastic! Thank you!
Svetla McPhie
Recent Google review
PlumbSmart was the only plumbing company that responded the same day to fix a leak. Excellent work and coordination. All over great team.
Plumbing disasters don't wait for business hours. Our expert team is ready to roll at any moment's notice, day or night, to handle your emergencies.
In most cases, yes, particularly for gas units or anything involving new venting or electrical circuits. PlumbSmart handles the permit process as part of the installation so the work is documented and up to code from day one.
We size based on the number of bathrooms, expected household size, and fixture count, including things like a soaking tub or a laundry room that runs hot water alongside a shower. Getting this right at installation avoids the common complaint of running out of hot water during normal morning routines.
Yes. We evaluate the space for clearance, venting, and access to gas or electrical service, then run whatever new lines are needed. This comes up often with additions, converted garages, and accessory dwelling units.
It depends on what's already run to the space. Gas units typically recover faster and cost less to operate where gas service exists. Electric units are simpler to install where there's no gas line nearby. We'll lay out the real cost difference for your specific site.
A straightforward installation where gas, electric, and venting already exist can often be done in a single day. New construction or additions needing new lines run take longer, and we'll give you an accurate timeline once we've seen the site.
Did you know that approximately 9-13% of our service calls are to come out to fix other companies' mistakes?
From the Blog
Practical tips and local insights from the PlumbSmart team.
1233 Safari St, San Antonio, TX 78216
(210) 810-0810Available 24 hours, 7 days a week.
A first-time water heater installation is a chance to set things up right from day one, whether that's a new home, an addition, or a converted space that never had hot water before. We look at how the space will actually be used, not just what fits.
That means asking questions before we ask you to pick a unit: how many bathrooms draw from this line, whether a laundry room shares the load, and what your gas or electrical service can support without new upgrades.
PlumbSmart handles the permit filing, the connections, and the final testing, so the installation holds up to inspection and, more importantly, to daily use for years after we've left.