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TRUSTED BY CUPERTINO, CA HOMEOWNERS

  • Average homeowner rating star icon4.4
    Average homeowner rating
  • Verified reviews icon2.7k+
    Verified plumbing services reviews

Top-Rated Plumbers in Cupertino - Updated Nov 2026

Avatar for Aaron's Plumbing & Rooter
Aaron's Plumbing & Rooter
4.8(
104
)
Water Main - Install, Replace or RepairDrain Clog or Blockage - ClearSewer Main - Install, Replace or Repair+11 more

Serving Cupertino, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2018

Free estimates

Emergency services offered

"Edgar led the project . He and his team were timely, knowledgeable, trustworthy and conscientious. The most caring and thoughtful plumber I have ever worked with. I have an old house so future plumbing issues will arise. Aaron’s is the first and only call I will need to make."
Bathroom Remodel
Bathroom Sink Fixture Install
Bathroom Remodel
Kitchen faucet fixture repair
Shower Ugrade

+108

Response time6 hrs
Response rate93%
102 neighbors recently requested a quote
Avatar for Escamilla Plumbing and Rooter Inc.
Escamilla Plumbing and Rooter Inc.
5.0(
51
)
Drain Clog or Blockage - ClearDrain Clog or Blockage - Clear - For BusinessDrain Line Breakage - Camera Locate+20 more

Serving Cupertino, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2015

Emergency services offered

Warranties offered

"Gustavo was professional with reasonable pricing. He did a great job in both bathrooms. I would highly recommend him to anyone wanting good quality plumbing work without price gouging. He explained everything every set of the way. An excellent plumber. I plan to use him for any future projects will need."
Plumbing Project
Electric Heat Pump Water Heater
Shower Valve
Shower Area Remodel
New Bidet

+167

Response time1 day
Recommended by82%of homeowners
Avatar for Jess Plumbing
Jess Plumbing
4.9(
50
)
Drain Clog or Blockage - ClearDrain Clog or Blockage - Clear - For BusinessDrain Line Breakage - Camera Locate+22 more

Serving Cupertino, CA and surrounding areas

Approved

In business since 1999

Free estimates

Emergency services offered

"Jesus was awesome - not only was he the first to respond to my inquiry, he fit me in quickly after a weekend and did the best job of any plumber I have ever had service my condo. Not all plumbers do a thorough or ideal set up and Jesus corrected what was leaking and fixed prior issues. Personable, professional, and reasonably priced, I am definitely hiring him again for any future plumbing work!"
Plumbing Project
Plumbing Project
Plumbing Project /water main
Old gate valve/ doesn’t shut off water
Installed new Zoeller sewer tank lid

+178

Response time1 day
Response rate100%
Recommended by93%of homeowners
Avatar for Water Heaters Masters
Water Heaters Masters
4.9(
112
)
Tankless Water Heater - InstallTankless Water Heater - Install - For BusinessTankless Water Heater - Repair+5 more

Serving Cupertino, CA and surrounding areas

Approved

In business since 2006

Free estimates

Emergency services offered

"I noticed water leaking from the water heater.  It is an old heater so I figured it was time to replace it.  It was a Friday so I was concerned that it would not be until the following week before I could get someone there to do the job and that the leak might become more serious.  I went through Angie's List and found Water Heater Masters. Since I did not need the services of a general household plumber I thought Water Master Heaters  would be a good resource.  I telephoned and left a vmail message which was returned within the hour.  They said they could be at my home in the next two hours and they ended up arriving sooner than that.  The man doing the work immediately assessed the situation and we agreed it was time for a new water heater.  He worked very quickly and the old heater was removed and the new heater was installed and working within two hours of his arrival. He also strapped it to the wall for earthquake safety.
"
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+20

Response time9 hrs
Recommended by94%of homeowners
Avatar for Core Plumbing Solutions, Inc.
Core Plumbing Solutions, Inc.
4.7(
35
)
Faucets, Fixtures and Pipes - Repair or ReplaceDrain Clog or Blockage - ClearSewer Main - Clear+1 more

Serving Cupertino, CA and surrounding areas

Approved

In business since 2023

Emergency services offered

Warranties offered

"Jose from Core plumbing solutions was fantastic. They were able to come out same day, did a great job communicating and Jose is super experienced, professional and quick. I will mostly definitely use this company again if needed in the future."
Faucet install
Waterline install
Floor prep
Drain line repair
Vanity sink installation

+36

Response time5 hrs
Response rate100%
57 neighbors recently requested a quote
Avatar for Wilmar Edwin Bautista
Wilmar Edwin Bautista
4.9(
159
)
Drain Clog or Blockage - ClearFaucets, Fixtures and Pipes - Repair or ReplaceWater Heater - Install or Replace+4 more

Serving Cupertino, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2018

Emergency services offered

Warranties offered

"What started as a simple toilet replacement encountered a couple curve balls because the age of the existing home. Wilmar Plumbing marched right through and solved the problems, even though they were not all plumbing related. And they did these "extras" at no additional cost! They arranged a date quickly, were responsive to my calls, arrived on time and cleaned up the mess in an quick and efficient manner. Wilmar Plumbing came in a large van that was fully equipped with parts, no running off to Home Depot. I already have another project in mind and won't hesitate to bring them back. Thank you Wilmar and team!"
Response time3 hrs
Response rate92%
4 neighbors recently requested a quote
Avatar for The Tankless Guys Plumbing Corp.
The Tankless Guys Plumbing Corp.
5.0(
13
)
Bathtub Install or Replace - For BusinessDrain Clog or Blockage - ClearDrain Line Breakage - Camera Locate+14 more

Serving Cupertino, CA and surrounding areas

Approved

In business since 2021

Free estimates

Emergency services offered

"Exceptional Service from The Tankless Guys I recently had the pleasure of hiring The Tankless Guys for a water heater replacement, and I am thrilled with the exceptional service they provided. From start to finish, this plumbing company demonstrated professionalism, efficiency, and a commitment to customer satisfaction. First and foremost, their pricing was incredibly reasonable compared to other quotes I received. The Tankless Guys understand the importance of offering competitive rates without compromising on the quality of their work. This affordability was a significant factor in my decision to choose them for my plumbing needs. What sets The Tankless Guys apart is the personal involvement of the owners. It was evident that they take pride in their business and genuinely care about their customers. This hands-on approach ensures that every job is handled with attention to detail and a commitment to excellence. It's reassuring to know that the owners are actively engaged in over"
Give us a call today at 408-580-0031
Give us a call
give us a call
give us a call
give us a call

+5

Response time7 hrs
Response rate91%
Recommended by100%of homeowners
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Showing 1-10 of 668
Plumbing FAQs, answered by experts

Build your Cupertino plumbing inspection routine around the wet and dry seasons. In the fall, clear debris from your sewer cleanout and test the main shutoff valve. During winter storms, check crawlspaces for moisture and monitor drains for backups. When spring arrives, schedule a camera inspection for your sewer lateral. In the summer, inspect outdoor faucets for leaks to comply with local drought restrictions.

Helpful?

Differentiating plumbing issues from other repairs in CA requires careful observation. Interior water stains appearing only during winter storms indicate roof leaks, while year-round stains point to plumbing failures. Wet spots in your yard during the dry summer months reveal irrigation or sewer line leaks. If you notice foundation cracks alongside high water bills, hire a local professional to check for a slab leak.

Helpful?

You must make several key decisions for plumbing in Cupertino. First, determine whether to manage the permit process yourself or authorize a licensed contractor. You also need to select water-efficient fixtures that meet CA standards. Finally, decide if you want to install a pressure-reducing valve for high water pressure or add an automatic seismic gas shutoff valve to protect your home during earthquakes.

Helpful?

You absolutely should combine plumbing with other home upgrades. Consolidating your projects under a single local permit application eliminates redundant inspections. If you open walls for electrical panel upgrades or insulation, handle your pipe replacements at the same time to avoid repeating demolition work. You also benefit from combining seismic retrofitting with drain line replacements since both require access to your CA home's crawlspace.

Helpful?

You should schedule plumbing work if your Cupertino home was built before 1985 and still has original galvanized steel or cast iron pipes. A sudden, unexplained increase in your water bill also signals a hidden leak requiring immediate attention. Additionally, you must secure an unstrapped water heater to meet current CA seismic safety codes and prevent serious hazards during an earthquake.

Helpful?

The Cupertino, CA homeowners’ guide to plumbing services

From average costs to expert advice, get all the answers you need to get your job done.