Placer & Sacramento Counties
Endless hot water with a tankless upgrade
Never run out of hot water again. HOTCO installs Navien, Rinnai and Noritz tankless water heaters with proper gas sizing, venting and descaling valves, often the same week you call.
- Same-day service
- Free quotes
- Open 24/7
- 902+ five-star reviews
- Open 24/7
- Same-day installs
- Lifetime labor warranty*
- Senior discounts
- Local & family-owned
*On select models. Ask for details.

Tankless Water Heaters
Why homeowners choose HOTCO for tankless water heaters
How tankless works
Instead of keeping 50 gallons hot all day, a tankless unit heats water only when you open a tap. That means no standby energy loss and no running out mid-shower.
Done right the first time
Most tankless problems come from undersized gas lines or poor venting. Our specialists check both and upgrade them as needed so your unit performs at its rated output.
Is tankless right for you?
Tankless is ideal for families who run out of hot water, homeowners staying long term, and anyone who wants the space back. Call and we will give you an honest recommendation.
- Endless on-demand hot water
- Up to 40% lower energy use
- Frees up garage space
- 20+ year lifespan
- Navien, Rinnai & Noritz
- Gas line & venting sized right
Included with every install
One price. Everything your install needs.
Other companies nickel-and-dime you for code-required parts. Our installs include all of this at no extra charge.
- Free deliveryYour new water heater is delivered at no charge.
- Haul-away and recyclingWe remove and responsibly recycle your old unit.
- Expansion tank and stainless connectionsProtects your plumbing from pressure spikes.
- T&P relief valve with up to 3 ft of pipingA code-required safety component.
- Copper plumbing with lead-free solderClean, safe, and built to last.
- Rust-resistant pipingDesigned for long-term performance.
- Expertly installed ventingCorrect venting for safety and efficiency.
- Gas drip leg and emergency shut-offAdded protection for gas units.
- Dual-layer safety gas connectorEnhanced protection on every gas line.
- Seismic strapsInstalled to California code.
- Post-install safety checkA full safety and performance inspection.
Additional work may be needed in older homes to meet local code. We always tell you upfront.
How it works
From cold shower to hot water in three steps
- 1
Call or text
Talk to a real specialist 24/7. Tell us what is happening and we give you an arrival window.
- 2
Free, upfront quote
We diagnose the issue on site and give you honest options with clear pricing, repair first when it makes sense.
- 3
Hot water, often same day
We deliver, install, haul away the old unit and finish with a full safety check.
Explainer videos
Watch: how your water heater works
Short videos that help you understand your options before you call.
Meet HOTCO, The Hot Water Heater Company
Who we are and how we take care of homeowners across Placer and Sacramento Counties.
How does a tankless water heater work?
A clear explanation of on-demand hot water and why tankless units save space and energy.
How to flush a water heater
Sediment is the top cause of early tank failure. Here is how flushing works.
5.0-star rated on Google, Facebook & more
902+ neighbors gave us five stars. Here's why.
902+
Five-star reviews. Zero paid ads can buy that.
Reviews from all platforms, from homeowners across Placer & Sacramento Counties.
- Google · 487 · 5.0 stars
- Facebook · 48 · 100% recommend
- Angi · 86 · 5.0 stars
- HomeAdvisor · 89 · 5.0 stars
- Yelp · 192 · 5.0 stars
- BBB · A+ Accredited
"On a quiet Sunday morning our 25-year-old water heater started leaking. Jen answered in two rings, gathered the make, model and capacity, and gave a detailed, very fair quote immediately. In about 60 minutes, on a Sunday, Mathieu arrived and had the new water heater installed with a drain pan, expansion tank and earthquake straps in under two hours. HOTCO turned a disastrous weekend surprise into a non-event."
"I contacted HOTCO on a Friday night, and by Monday afternoon we had a new 40 gallon Bradford White water heater professionally installed. Charles was prompt, polite and very knowledgeable, had the old heater out and the new one in within two hours, then explained everything he did. We got both value and quality work."
"We woke up Saturday to our water heater leaking into the tray. The nice lady who answered the phone hooked us up right away and Charles showed up at 1:00 p.m. He was friendly, polite, respectful and knowledgeable. My wife and I are seniors and we really appreciate the rapid response."
Brands we install and service
- Navien
- Rinnai
- Bradford White
- Rheem
- Ruud
FAQ
Tankless Water Heaters FAQs
Still have a question? Ask our assistant in the corner, or call and talk to a specialist.
How long does a water heater last?
A traditional tank typically lasts 8 to 12 years. Tankless water heaters can last 20 years or more with regular descaling. Hard water in the Sacramento region can shorten tank life, which is why annual flushing helps.
Is a tankless water heater worth it?
For many families, yes. Tankless units provide endless hot water, take up far less space, and can lower energy bills. The upfront cost is higher than a tank, so we will walk you through whether it pays off for your household size and usage.
Do you offer any discounts or warranties?
Yes. We offer senior discounts and a lifetime labor warranty on select models. Ask about current specials, including our Navien tankless upgrade special, when you call.
Expert guides
Tankless Water Heaters: helpful articles

Tankless ·
Tankless Water Heater Installation in Placer County: Cost, Process and What to Expect
Switching from a tank to tankless takes more than swapping units. Here is what a proper tankless installation includes, and why it matters.

Guides ·
How Often Should You Flush a Water Heater? (Hard-Water Sacramento Edition)
Sediment is the silent killer of water heaters in our region. Here is how often to flush, descale and inspect yours to get the most years out of it.

Guides ·
Types of Water Heaters Explained: Tank, Tankless, Heat Pump, Hybrid and Commercial
Not sure which kind of water heater you need? This side-by-side guide explains every type and who it is best for.
Service areas
Tankless Water Heaters near you
Based in Roseville, our technicians reach most of the region fast. Find your city below.
No hot water? We can usually fix it today.
Talk to a real water heater specialist now. Free quotes, upfront pricing, and same-day service in most cases.
