Water Heater Repair in Mountain House, CA
When your water heater starts acting up, you need a trusted local team that responds fast and gets it right the first time. Knights Plumbing & Drain is to the rescue for property owners in Mountain House, providing reliable water heater repair in Mountain House backed by 30+ years of experience. Whether your system needs a tune-up, a full replacement, or an energy-efficient upgrade, our certified plumbers deliver upfront pricing, same-day scheduling, and guaranteed results.
Our Water Heater Services in Mountain House
Heat Pump Water Heater
The ideal upgrade for Mountain House homeowners focused on sustainability. Save energy, reduce costs, and qualify for rebates with a high-efficiency heat pump system.
Tankless Water Heater
Get endless hot water for your growing family with a compact, on-demand system that fits perfectly in newer homes.
Water Filtration Systems
Mountain House water can be hard on pipes and appliances. A filtration system improves taste, reduces buildup, and helps your water heater perform better.
Water Softener Installation
Protect your plumbing from hard water scale and extend your heater’s lifespan with a professional softener setup
- Our Offers
Plumbing Coupons and Special Offers
We believe every customer deserves high-quality plumbing at a fair price. Take advantage of our current coupons to save instantly on essential services:
$15 OFF
ANY WATER HEATER (INSTALLED)
Upgrade to a new water heater and enjoy instant savings.
$15 OFF
ANY DRAIN CLEANING SERVICE
Coupon must be presented at the time of service and cannot be combined with other offers.
$15 OFF
ANY PLUMBING REPAIR SERVICE
Save on common repairs like leaks, clogs, or fixture replacements.
- plumbing service company
Main Services We Cover
- 5-Star Reviews
Over 3k Positive Reviews From Our Clients
EXCELLENT Based on 542 reviews Posted on E XTrustindex verifies that the original source of the review is Google. We always request Joe to service our home because he is very professional and knowledgeable! He’s also quick and cleans after his service!Posted on Vikki FrazierTrustindex verifies that the original source of the review is Google. As always (we live in an old house) Knights Plumbing are our go to plumbers. Always respectful and in good moods. Today it was Victor’s turn to tackle roots in the pipes. Fast, professional and overall a great guy. He was informative without being pushy about our pipe and tree situation (we do know it’s not great) 5/5 stars. Thanks VictorPosted on Diana GillisTrustindex verifies that the original source of the review is Google. Victor was amazing. Very professional and personable. He explained everything so that I could understand. His workmanship is great and was done in a timely manner. I would trust him with all future work. Thanks Victor...you're the best and I love your friendly personality.Posted on B. J.Trustindex verifies that the original source of the review is Google. Victor is an awesome plumber. He has excellent plumbing and customer service skills, and is very efficient and clean. He fixes any plumbing issues I ever had every time the first time. Highly recommend Victor to anyone who expects a professional plumber!Posted on Elena SanchezTrustindex verifies that the original source of the review is Google. Our technician Victor did a fantastic job of running his cable and camera in our sewer line. He unclogged our blockage, fast and efficiently. He was very respectful. I would recommend this company to anyone who’s looking for plumbing services.. Leslie took our phone call and he got someone to us in less than an hour! It wasn’t expensive for the amount of work that was done .If I could give this company more stars, I would.Posted on Jose RanesesTrustindex verifies that the original source of the review is Google. Victor was on time and knowledgeable tech and gave me alot of information about tankless water heatersPosted on Jake HaigTrustindex verifies that the original source of the review is Google. Michael was the service technician that helped me out and he was very thorough and neat with his work. He made sure his work was done correctly and was very communicative with his process during installation and through their office. Would recommend again.Posted on J DTrustindex verifies that the original source of the review is Google. Very pleased with the service. Technician Michael was just awesome. Well versed, polite and helpful. Definitely recommend to all!
Choosing the Right Water Heater for Your Mountain House Property
Mountain House’s new and expanding neighborhoods deserve high-performance, efficient systems. Our plumbing experts help you choose the best option for your home or business:
- Tankless Water Heaters – Perfect for large families or multi-bath properties that need consistent hot water.
- Heat Pump Water Heaters –The most energy-efficient option for Mountain House, combining performance and sustainability.
👉 Not sure what works best? Our local specialists will evaluate your water usage and recommend the right system for your property’s size and budget.
- Serving the Central Valley
Water Heater Services Near You
- Solutions
Water and Water Heater Solutions in Ceres
Common Water Heater Problems in Mountain House
- Sediment accumulation that affects heating performance.
- Fluctuating temperatures or inconsistent water pressure.
- Leaks or rust in older systems or poor installations.
- Noisy operation caused by scale buildup.
Prevention Tip: Regular maintenance and pairing your unit with a softener or filtration system helps prevent these issues before they start.
Cleaner Water for a Smarter Home in Mountain House
- Improve water taste and clarity.
- Prevent mineral buildup that shortens water heater lifespan.
- Extend the life of appliances and fixtures.
- Deliver cleaner, healthier water for your family or tenants.
Protecting Your Water Heater from Hard Water
- Prevent calcium and lime buildup inside pipes and water heaters.
- Maintain strong water pressure throughout your property.
- Improve energy efficiency and system longevity.
- Keep fixtures and glassware spotless.
💡 Combining a water softener with your new or repaired system keeps your hot water supply running smoothly for years.
Affordable Plumbing for Everyone
Plumbing Specials & Coupons
Save instantly on everyday plumbing services.
Flexible Financing
Easy payment options so you don’t have to delay important repairs or upgrades.
Royalty Club Membership
Exclusive perks like discounts, inspections, annual water heater flushes, for members.
- Our Process
Our Water Heater Process – 4 Easy Steps
Step 1
Schedule Your Appointment
Call or book online for fast, reliable service.
Step 2
Upfront Estimate
Get a clear, detailed quote before work begins.
Step 3
Expert Installation or Repair
Licensed plumbers complete your water heater installation in Mountain House efficiently and safely.
Step 4
Guaranteed Satisfaction
Every job is backed by our Happy Today or You Don’t Pay Guarantee.
- go to plumbing service company
Why Mountain House Chooses Knights Plumbing
- Trusted for Over 30 Years – Serving the Central Valley and Mountain House communities with pride.
- 3,000+ 5-Star Reviews – Backed by real customer satisfaction.
- Upfront Pricing – Transparent quotes before any work begins.
- Same-Day Appointments in Ceres – Quick service for urgent water heater needs.
- Guaranteed Workmanship – Covered by our Happy Today or You Don’t Pay Guarantee.
Save with TECH Clean California rebates
By choosing a heat pump water heater installation through a TECH Clean California–enrolled contractor like Knights Plumbing, you may qualify for significant rebates:
- Northern California homeowners (PG&E & regional utilities): up to $3,300.
- Southern California homeowners (SCE, SDG&E & others): up to $4,300.
- Equity-qualified households (income-based): up to $5,700 in savings.
Additional program benefits:
- $50 enrollment bonus plus $5/month ongoing rewards for participating in smart energy programs.
- Stackable with federal tax credits and other local utility incentives.
👉 Have Questions? Contact Us Now For More Information
- FAQS
FAQs About Water Heaters in Mountain House
It depends on the issue and system type. We provide clear, upfront pricing before any work begins.
If your system is older than 10 years, leaking, or heating inconsistently, a replacement may be more cost-effective than ongoing repairs.
Yes! We handle water heater installation in Mountain House for both traditional and tankless systems in homes and commercial buildings.
Absolutely. They’re perfect for newer, energy-efficient homes and can significantly reduce energy bills.
Yes. Hard water can cause scale buildup and reduce efficiency. Installing a filtration or softener system helps protect your investment.
With proper maintenance, most tankless systems last 15–20 years — nearly double that of traditional units.
Definitely. We install, repair, and maintain water heaters for offices, restaurants, and multi-unit buildings.
- Latest News
Visit Our Blog and Learn More from Our Professionals
Our blog is packed with tips and insights from Knights Plumbing experts. Learn how to maintain your water heater, reduce hard water damage, and improve energy efficiency in your Mountain House property.

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How to Winterize Outdoor Plumbing: Essential Steps for Stockton Homes
Discover essential steps to prevent costly freeze damage with our guide on how to winterize outdoor plumbing efficiently.
- Contact Us
Call the Knights to the Rescue in Mountain House!
Whether you need water heater repair in Mountain House, a full system replacement, or a new energy-efficient installation, Knights Plumbing & Drain is your trusted local team. From modern homes to commercial spaces, our experts deliver reliable, affordable, and guaranteed results.