Plumber Mountain House – Residential & Commercial Experts
- Licensed & Insured – Contractor's License #813548
- Same-Day Service Available Throughout Mountain House
- Worry-Free Guarantee – You're Happy or You Don't Pay
- Licensed & Insured – Contractor's License #813548
- Same-Day Service Available Throughout Mountain House
- Worry-Free Guarantee – You're Happy or You Don't Pay
- plumbing service company
Complete Plumbing Services for Mountain House
Residential and Commercial Plumbing
From new home inspections to emergency repairs, we handle every plumbing need for Mountain House properties. Our services include burst pipe repair, gas line leak detection and repair, sump pump installation, advanced leak detection technology, slab leak repairs protecting your foundation, and comprehensive solutions for the commercial plumber mountain house businesses need along Main Street and Central Parkway.
Drain and Sewer Services
Even new homes can develop drainage problems from improper installation or settling foundations. We provide professional drain cleaning mountain house residents rely on for all fixtures, complete sewer line repair and replacement, powerful hydro-jetting clearing tough blockages, modern trenchless sewer repair mountain house properties benefit from, and thorough sewer inspection mountain house homeowners need to identify issues early.
Water Heater and Water Treatment Systems
Hard water affects Mountain House homes just like older Central Valley communities, making water treatment essential from day one. We install energy-efficient tankless water heaters perfect for modern families, innovative heat pump water heaters reducing energy costs, whole-home water softener systems protecting your new appliances and fixtures, and advanced water filtration systems providing cleaner, better-tasting water throughout your home.
Pipe Services and Inspections
New construction doesn't always mean problem-free plumbing. We specialize in identifying and correcting builder installation errors, whole-home repiping when needed using quality PEX and copper materials, comprehensive video pipe inspections assessing new system condition, and ensuring all work meets California building codes with proper permits.
Kitchen and Bathroom Plumbing
Whether you're experiencing issues with builder-installed fixtures or planning upgrades, we handle all kitchen and bathroom needs. Services include toilet repair and replacement, faucet and fixture installation, custom tub and shower installation, shower repair mountain house homeowners need for improperly installed units, garbage disposal services, and complete kitchen and bathroom remodeling for those ready to customize their homes.
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- 5-Star Reviews
Trusted by Mountain House Homeowners and Businesses
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!
How Mountain House's Rapid Growth Affects Your Plumbing
Mountain House represents one of California’s newest master-planned communities, with thousands of modern homes built over the past two decades. While newer construction means contemporary plumbing systems, rapid development brings unique challenges. Many Mountain House properties experience installation issues from rushed construction, including improper fixture mounting and inadequate water pressure from undersized systems. The area’s location near the Delta brings clay-heavy soils that shift seasonally, potentially stressing underground pipes and foundations. Despite modern plumbing, Mountain House faces the same Central Valley hard water problems—high mineral content that accelerates scale buildup in water heaters, pipes, and appliances. Our experience with both new home systems and preventive maintenance makes us the plumber in mountain house homeowners trust.
- Serving the Central Valley
Serving Mountain House and Surrounding Communities
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Helpful Plumbing Resources for Mountain House Homeowners
Stay informed with the latest articles from our plumbing service company. From maintenance advice to energy-saving upgrades, our blog helps keep plumbing systems running smoothly.

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Repiping Options for Old Homes: Essential Guide for Homeowners
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Affordable Plumbing for Everyone
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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.
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Why Mountain House Residents Choose Knights Plumbing and Drain
- Drug-Free, Certified Professionals – Every technician undergoes rigorous background checks and drug testing. We're professionals who respect your new home, your family, and your time with courteous, reliable service you can trust completely.
- Transparent Pricing You Can Count On – We provide clear, detailed quotes before starting any work, ensuring you know exactly what to expect. No hidden fees, no surprise charges—just honest, upfront pricing.
- Three Decades of Central Valley Expertise – Since 1995, we've been solving complex plumbing challenges throughout the region. We're experts at identifying new construction issues and providing lasting solutions that protect your investment.
- Royalty Club Exclusive Benefits – Members enjoy annual plumbing inspections, yearly water heater flush and maintenance, priority scheduling and exclusive discounts on all services.
- FAQS
Mountain House Plumbing FAQs
Even brand-new homes can experience issues including improper fixture installations during construction, inadequate water pressure from undersized supply lines, incorrect water heater sizing for household needs, foundation settling affecting pipes and drains, and immediate hard water damage to new appliances. We inspect new construction plumbing, identify builder errors, and correct problems before warranties expire.
Yes! We serve Mountain House commercial properties including restaurants, retail stores, office buildings, and service businesses throughout the community. As an experienced commercial plumber mountain house companies trust, we understand business plumbing needs and provide fast response times, after-hours service, preventive maintenance programs, and code-compliant installations.
Mountain House has the same hard water problems affecting the entire Central Valley—extremely high mineral content that causes scale buildup in pipes, dramatically shortens water heater lifespans, damages brand-new appliances, spots dishes and fixtures, and reduces efficiency. Installing a whole-home water softener immediately protects your investment and prevents costly repairs down the road.
Even new homes benefit from annual professional inspections to catch builder installation errors, verify proper system operation, check for foundation settling issues, remove mineral buildup from hard water, and ensure everything meets code requirements. Our Royalty Club members receive annual inspections that protect new home warranties and identify problems early.
Common causes include improper drain slope during installation, inadequate venting causing slow drainage, foundation settling affecting pipe alignment, construction debris left in lines, and accumulation from regular use. Regular drain cleaning mountain house homeowners schedule prevents major blockages, and our sewer inspection mountain house services identify underlying installation problems.
Yes. Even new sewer lines can experience problems from improper installation, inadequate slope preventing proper drainage, foundation settling misaligning connections, and damage during landscaping. Our sewer repair mountain house services include video camera inspections that identify issues early and trenchless repair options that preserve your landscaping when problems occur.
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