Experience Reliable Plumbing Solutions
Tankless Water Heater Installation
RSM Plumbing specializes in tankless water heater installation for homeowners across Caldwell, Nampa, Meridian, Boise, and the surrounding Treasure Valley. Tankless water heaters provide endless hot water, improved energy efficiency, and a space-saving design compared to traditional tank systems. We install high-performance Rinnai tankless water heaters, one of the most trusted and reliable brands in the industry. Our experienced plumbers ensure each system is properly sized, installed, and configured for your home so you can enjoy dependable hot water for years to come. RSM Plumbing also stands behind our Rinnai installations with an industry-leading 5-year labor warranty, giving homeowners additional peace of mind when upgrading to tankless technology.
Get Started with Our Expert Plumbing Services
Benefits of Upgrading to a Tankless Water Heater
• Endless hot water for showers, laundry, and dishes
• Lower energy usage compared to traditional tank heaters
• Compact wall-mounted design saves space
• Longer lifespan than standard water heaters
• Reduced risk of tank leaks and flooding
• Modern systems with precise temperature control
Our Process Explained
Step 1 - Call or book online
Getting started is easy. Call RSM Plumbing or schedule service through our online booking system. One of our plumbers will quickly connect with you to learn more about the issue and help determine the best next step.
Step 2: In-Home Assessment & Honest Recommendations
If needed, we’ll visit your home to evaluate the plumbing problem. Our plumber will clearly explain what’s going on, discuss your options, and recommend the most practical and cost-effective solution.
Step 3: Professional Plumbing Service
Once you approve the plan, our experienced plumbers will complete the repair or installation efficiently and with attention to detail. Our goal is to restore your plumbing system quickly while ensuring the job is done right.
Why Choose RSM Plumbing
As a local family-owned business, RSM Plumbing is committed to providing honest and reliable plumbing services. Our team is dedicated to serving the Treasure Valley with integrity and expertise.
Our Commitment to You
We prioritize safety and clear communication, ensuring that every homeowner understands the work being done. Our reputation is built on trust and quality workmanship.
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Explore Our Recent Plumbing Projects
Take a look at our recent projects across the Treasure Valley. Our interactive map showcases the areas we've served and the types of jobs we've completed.
What Our Customers Say
Cities We Serve
- Caldwell
- Nampa
- Meridian
- Boise
- Eagle
- Kuna
- Middleton
- Melba
- Star
- Parma
- Homedale
- Wilder
- Marsing
- Notus
- Greenleaf
Frequently Asked Questions
Find answers to common plumbing questions to help you understand our services better.
Are tankless water heaters popular in Idaho homes?
In case of a plumbing emergency, turn off the main water supply and contact us immediately. Our team is available 24/7 to assist you.
Do tankless water heaters work well in cold climates like Idaho?
They do, as long as the system is properly sized for your home’s hot water demand.
How long do tankless water heaters last?
Most tankless units last around 20 years or more when properly maintained.
Can my existing home switch to a tankless system?
In many cases yes. Sometimes upgrades to gas lines or venting may be needed depending on your home.
Why do many homeowners choose Rinnai tankless systems?
Rinnai systems are known for reliability, efficiency, and advanced technology, which is why they’re one of the most trusted brands in the industry.