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Knights Plumbing Has Joined the Tony’s Family

After more than 30 years serving homeowners throughout the Central Valley, Les and the team at Knights Plumbing have partnered with Tony’s Plumbing, Heating & Air, a local, family-operated company proudly serving the area since 1994.

Your same commitment to honest service and quality workmanship remains, now backed by expanded plumbing, heating, and air conditioning expertise. The same care you’ve trusted for decades is here, with more resources to help keep your home comfortable year-round.

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Home / Service Areas / Mountain House, CA / Water Heater Mountain House

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.

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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.

 Get endless hot water for your growing family with a compact, on-demand system that fits perfectly in newer homes.

Mountain House water can be hard on pipes and appliances. A filtration system improves taste, reduces buildup, and helps your water heater perform better.

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

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ANY WATER HEATER (INSTALLED)

Upgrade to a new water heater and enjoy instant savings.

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$15 OFF

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ANY DRAIN CLEANING SERVICE

Coupon must be presented at the time of service and cannot be combined with other offers.

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$15 OFF

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ANY PLUMBING REPAIR SERVICE

Save on common repairs like leaks, clogs, or fixture replacements.

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Main Services We Cover

Professional plumber performing maintenance on a heavy-duty stainless steel garbage disposal unit under a commercial-style white apron sink in a business breakroom or restaurant kitchen.

Plumbing Repairs

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Drain & Sewer Services

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Water Heaters & Filtrations

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Pipes & Inspections

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Kitchen & Bathroom Plumbing

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Commercial Plumbing

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  • 5-Star Reviews

Over 3k Positive Reviews From Our Clients

More Reviews 
 
 
 
 
  EXCELLENT  
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 E X profile picture 
 
 
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 Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex 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 Google Google 
 
 Vikki Frazier profile picture 
 
 
 Vikki Frazier 
 
 
 
 Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex 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 Victor
  
 
  
 
 
 
 Posted on Google Google 
 
 Diana Gillis profile picture 
 
 
 Diana Gillis 
 
 
 
 Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex 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 Google Google 
 
 B. J. profile picture 
 
 
 B. J. 
 
 
 
 Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex 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 Google Google 
 
 Elena Sanchez profile picture 
 
 
 Elena Sanchez 
 
 
 
 Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex 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.
  
 
  
 
 
 
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 Jose Raneses profile picture 
 
 
 Jose Raneses 
 
 
 
 Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex 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 heaters
  
 
  
 
 
 
 Posted on Google Google 
 
 Jake Haig profile picture 
 
 
 Jake Haig 
 
 
 
 Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex 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.
  
 
  
 
 
 
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 J D profile picture 
 
 
 J D 
 
 
 
 Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex 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.

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  • Serving the Central Valley

Water Heater Services Near You

  • Solutions

Water and Water Heater Solutions in Ceres

Common Water Heater Problems in Mountain House

Even new homes in Mountain House can experience water heater issues due to heavy usage and mineral buildup. Some of the most common problems include:
  • 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

Even in modern developments, local water quality can affect plumbing efficiency. A whole-property water filtration system can:
  • 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.
professional gas water heater installed in a utility closet with mandated seismic straps, a safety drain pan, and yellow gas line.

Protecting Your Water Heater from Hard Water

Mountain House water often contains minerals that cause scaling and reduce appliance performance. Installing a water softener can:
  • 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

We believe every homeowner and business deserves access to safe, reliable plumbing. That’s why we offer several ways to keep your services affordable and stress-free:

Plumbing Specials & Coupons

Save instantly on everyday plumbing services.

Claim Coupon

Flexible Financing

Easy payment options so you don’t have to delay important repairs or upgrades.

Apply for Financing

Royalty Club Membership

Exclusive perks like discounts, inspections, annual water heater flushes, for members.

Join the Royalty Club
  • 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.
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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

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A professionally installed tall gas water heater in a garage, featuring seismic straps, a drain pan, and an expansion tank for safety compliance.
  • 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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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.

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