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San Ramon, Dublin & Pleasanton · Water Systems & Water Heaters

Clean, reliable water— from the main line to every fixture.

Choose Prime Time Plumbing for all your water service needs, and let our expert plumbers provide you with solutions that ensure the health and safety of your home. From installations to repairs, we are dedicated to delivering the highest quality service to meet your water line needs.

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Available 24/7 Perfect 5-star rating on Google Licensed • Bonded • Insured
Free estimateKnow the recommended next step before work begins
24/7 responseReach the team whenever a plumbing problem hits
Licensed • Bonded • InsuredCalifornia License #1109508
Workmanship guaranteeWork backed by Prime Time Plumbing
Crews clean up before they leave— reviewers consistently mention it
5.0 on GoogleBased on 66+ customer reviews
Protecting the health of your home

Complete water line & hot water solutions.

At Prime Time Plumbing, we are committed to providing top-notch water line services to ensure the health and safety of your home. Our skilled plumbers can service, install, or repair any water line issue you may have, from PVC water mains to copper shower valves. Upholding the Plumbers Code of “Protecting the health of the nation,” we aim to deliver clean, safe water to your home with every service we provide.

100%
Code-Compliant Water Systems From high-efficiency Rinnai tankless conversions to copper & PEX repiping across the Tri-Valley.
Before & after: clean copper shut-off and pressure regulator upgrade by Prime Time Plumbing.
Before & after: clean copper shut-off and pressure regulator upgrade by Prime Time Plumbing.
What’s included

Specialized Water Services

Every installation, inspection, and repair is performed by our licensed, background-checked Tri-Valley plumbing crew.

Finished luxury kitchen faucet delivering filtered water
Pure Water Quality

Water Softeners and Filters

Hard water can cause a range of issues, from scaling in your pipes to reducing the efficiency of your appliances. Our team can install and maintain water softeners to help mitigate these problems, extending the lifespan of your plumbing system and improving the quality of your water. Additionally, we offer water filter installation and maintenance services to ensure that your drinking water is clean, safe, and free from contaminants.

  • Whole-home water softener installation & calibration
  • Scale prevention to protect tankless heaters, faucets & appliances
  • Under-sink RO & whole-house carbon filtration systems
  • Filter cartridge replacement & annual system maintenance
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Precision copper valve installation by Prime Time Plumbing
Precision Flow Control

Shower Valves and Shut-Off Valves

Properly functioning shower valves are crucial for maintaining a consistent water temperature and preventing leaks. Our plumbers are experienced in installing and repairing various types of shower valves, ensuring you have a reliable and enjoyable shower experience. We also install and service shut-off valves, which are essential for controlling water flow and preventing potential water damage in your home.

  • Copper & pressure-balancing shower rough-in valves
  • Thermostatic & multi-outlet custom shower valve installations
  • Main water shut-off ball valves & pressure reducing valves (PRVs)
  • Angle stops & emergency fixture shut-off valve replacements
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Rinnai tankless water heater installed by Prime Time Plumbing
Endless Hot Water

Water Heaters (Tankless, Gas & Electric)

A reliable water heater is essential for the comfort of your home. Whether you need a new installation, replacement, or repair of an existing unit, Prime Time Plumbing has you covered. We work with all types of water heaters, including tankless, gas, and electric models, ensuring that your home has a consistent supply of hot water.

  • High-efficiency tankless water heaters (Rinnai, Navien & Noritz)
  • Complete tank-to-tankless conversions (interior & exterior)
  • Standard & high-recovery 50 to 80-gallon gas & electric tanks
  • Recirculation pumps, expansion tanks, seismic strapping & flushing
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Water line and tankless system manifold by Prime Time Plumbing
Main Lines & Repiping

Water Mains, Leak Detection & Repiping

From underground PVC and copper water service mains to whole-home PEX or copper repiping, our crew diagnoses hidden leaks fast and replaces aging or corroded supply lines with minimal disruption to your property.

  • PVC, copper & PEX main water service line repair and replacement
  • Pinpoint electronic & acoustic slab and wall leak detection
  • Whole-home repiping from aging galvanized or polybutylene pipes
  • High water pressure diagnostics and regulator replacements
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Materials & Standards

Water Systems We Service & Install

Built with commercial-grade materials and installed to California Plumbing Code standards.

Tankless Water Heaters

On-demand endless hot water, wall-mounted space savings, and lower energy bills.

High-Capacity Tank Heaters

40, 50, 75 & 80-gallon gas and electric units with code-compliant seismic strapping.

Whole-Home Filtration & Softeners

Eliminates hard-water scale buildup, chlorine taste, and sediment across every tap.

Copper & PEX Supply Piping

Type-L copper and expansion/crimp PEX-A/B installations backed by our workmanship guarantee.

Main Shut-Off & PRV Assemblies

Quarter-turn brass ball valves and pressure regulators that protect fixtures from high street pressure.

Shower & Tub Mixing Valves

Precision rough-in brass bodies and trim kits for single, rain, and body-spray showers.

Full-service plumbing

Explore All 6 Plumbing Services

One licensed Tri-Valley team for water, sewer, remodels, gas, new construction, and ADU plumbing.

Water Systems & Water Heaters
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Water Systems & Water Heaters

Expert water line repair, tankless & tank water heaters, water softeners, whole-home filtration, and shower/shut-off valves in San Ramon, Dublin & Pleasanton.

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Drain & Sewer Specialists

Drain & Sewer Specialists

Compliant sewer lateral replacement, HD sewer camera inspections, backwater valves, cast iron/PVC/ABS/clay/Fuse Seal repiping & Certificates of Compliance in San Ramon, Dublin & Pleasanton.

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Repairs & Custom Remodels

Repairs & Custom Remodels

Luxury bathroom and kitchen plumbing remodels, freestanding tubs, custom showers, double vanities, rough-in to final fixtures, and 24/7 plumbing repairs in San Ramon, Dublin & Pleasanton.

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Licensed Gas Line Specialists

Licensed Gas Line Specialists

Licensed gas plumbing in San Ramon, Dublin & Pleasanton: MegaPress, Black Iron & Poly underground gas lines, fire pits, outdoor kitchens, pressure testing & leak repair.

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New Construction Plumbing

New Construction Plumbing

Complete new construction plumbing in San Ramon, Dublin & Pleasanton: custom homes, ADU builds, slab & crawlspace rough-ins, DFU pipe sizing & water meter calculations.

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ADU Plumbing Specialists

ADU Plumbing Specialists

Specialized ADU plumbing in San Ramon, Dublin & Pleasanton: slab-on-grade vs crawlspace systems, sewer lateral tie-ins, DFU sizing, water meter upsizing & permits.

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Local service area

Proudly serving San Ramon, Dublin, Pleasanton & Surrounding Areas.

Based at 2010 Crow Canyon Place in San Ramon and serving homeowners, businesses, and builders across the Tri-Valley and East Bay.

San Ramon
Dublin
Pleasanton
Common questions

Water Service FAQs.

Should I switch from a tank water heater to a tankless unit?

Tankless water heaters provide endless hot water, take up far less space, and last up to 20 years with proper maintenance. Prime Time Plumbing handles the full tank-to-tankless conversion—including gas line sizing, venting, and water connections.

How do I know if my home needs a water softener or filter?

White chalky buildup on faucets, spots on glassware, dry skin, or premature water heater wear are classic signs of hard water. We test your water hardness and recommend the right softener or filtration setup for your home.

Can you replace my old main water shut-off valve?

Yes. If your existing gate valve is stuck, leaking, or hard to turn, we can upgrade it to a heavy-duty quarter-turn brass ball valve and check your home water pressure at the same time.

Do you offer free estimates on water heater and water line work?

Yes! Text or call us at (510) 213-8213 or submit our Free Quote Form for a fast, no-obligation estimate.

Get the plumbing problem off your plate.

Start with a free quote. Prime Time Plumbing will take it from there.

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