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TRUSTED BY KNIGHTSEN, CA HOMEOWNERS

  • Average homeowner rating star icon4.5
    Average homeowner rating
  • Verified reviews icon1.1k+
    Verified plumbing services reviews

Top-Rated Plumbers in Knightsen - Updated Nov 2026

Avatar for Premier Plumbing Solutions 925
Premier Plumbing Solutions 925
5.0(
51
)
Tankless Water Heater - InstallTankless Water Heater - Install - For BusinessWater Heater - Install or Replace+1 more

Serving Knightsen, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2024

Free estimates

Warranties offered

"This installation of a new hot water heater was the most professional plumbing job that I have ever experienced. Each step from demo, fitting replacements, and heater installation were all completed in the best possible manner. The job was “Done Right”. Call Alberto when you need a plumber!"
Response time5 hrs
Recommended by47%of homeowners
Avatar for Mitko BG Plumbing Inc
Mitko BG Plumbing Inc
5.0(
38
)
Water Heater - Install or ReplaceWater Heater - Repair or ServiceTankless Water Heater - Repair+1 more

Serving Knightsen, CA and surrounding areas

Approved

In business since 2024

Free estimates

Emergency services offered

"Mitko was very proactive and helpful. I ended up replacing the water heater as well as correcting an existing plumbing mistake for my recirculating pump. He was quick and clean. The work was very neat and the price was reasonable. If you want a fast and smooth response, Mitko BG Plumbing is a good option. He was on time and responded to every call or text. HRE"
Tankless Installation
Tankless repairs
Tankless repairs
Tankless repairs
Tankless repairs

+12

55 neighbors recently requested a quote
Avatar for BCMN
BCMN
4.6(
111
)
Water Heater - Install or ReplaceTankless Water Heater - InstallTankless Water Heater - Install - For Business+5 more

Serving Knightsen, CA and surrounding areas

Approved

In business since 2015

Free estimates

Warranties offered

B C M N DBA F and F Plumbing and Drain Cleaning, is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers interests, and make their concerns the basis of our business.

Response time4 hrs
3 neighbors recently requested a quote
Recommended by75%of homeowners
BCMN
4.6(
111
)
Tankless Water Heater - InstallTankless Water Heater - Install - For BusinessTankless Water Heater - Repair+5 more

Serving Knightsen, CA and surrounding areas

Approved

In business since 2015

Free estimates

Credit card accepted

Friends and family Plumbing and Drain Cleaning, (DBA BCMN) is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers interests, and make their concerns the basis of our business.

Recommended by75%of homeowners
Avatar for Albert Nahman Plumbing, Heating, and Cooling
Albert Nahman Plumbing, Heating, and Cooling
4.4(
722
)
Faucets, Fixtures and Pipes - Repair or ReplaceGas PipingDrain Clog or Blockage - Clear+22 more

Serving Knightsen, CA and surrounding areas

Approved (Corporate)

In business since 1981

Free estimates

Warranties offered

"The Albert Nahman Plumbing team was great! From customer service during scheduling to the knowledgeable and skilled plumber they sent out to us. They got our rush job done for us right away with a high level of quality. Highly recommended!"
Living room Mini-Split
Aquasana home Filtration
Almost no disturbance at EBMUD meter
Navien with filtration to protect the heat exchanger
New house valve and Pressure Reducing Valve

+73

Response time8 hrs
Response rate100%
44 neighbors recently requested a quote
Avatar for H K & S Plumbing Co.
H K & S Plumbing Co.
4.3(
96
)
Faucets, Fixtures and Pipes - Repair or ReplaceGas PipingWater Heater - Install or Replace+27 more

Serving Knightsen, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2000

Free estimates

Emergency services offered

"Dear Friend! I would like to share great experience with Harry plumber! In this case You don't need to look nobody else to help you with any plumber project. My plumber project was complicated. I had quote from 5 professional plumber. Some one doesn't know how to fix problem, some one was extremely high in price! I was a very upset! Harry came on time. He was a very pleasant , knowledgeable and found solution how job need to be done from his many years experience ! Price was great! He even helped to fix some small staff in my house which he don't have to do!He was beyond all way!Please don't spend your time to look plumber! You have Harry!!!!ð"
H K & S Plumbing Co.
Response time11 hrs
27 neighbors recently requested a quote
Recommended by73%of homeowners
Avatar for Drain Raider Plumbing
Drain Raider Plumbing
5.0(
20
)
Drain Clog or Blockage - ClearDrain Clog or Blockage - Clear - For BusinessDrain Line Breakage - Camera Locate+2 more

Serving Knightsen, CA and surrounding areas

Approved

Free estimates

Emergency services offered

Warranties offered

"Adam was very professional he was very helpful I would use this company again he deserves a million stars he gets the job done right I hope everyone uses this company I want this company for all my Plumming issues hands down I trust this company and Adam’s expertise"
2 neighbors recently requested a quote
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Plumbing FAQs, answered by experts

The amount of clean water your cistern can supply depends on its size and the local rainfall patterns. Cisterns range from a few hundred to several thousand gallons in capacity. 

To estimate the potential supply, consider the average annual rainfall in your area and the catchment area of your roof. For instance, a 1,000-square-foot roof can collect around 600 gallons of water from just one inch of rainfall. 

Multiply this by the average annual rainfall to get a rough idea. However, factors like evaporation and system efficiency will also play a role.

While polybutylene pipes are usually light gray, if you see gray pipes in your home that doesn’t necessarily mean they’re polybutylene. PVC pipes can also come in gray. Check for a “PB2110” stamp, slight flexibility, or a ½-inch to 1-inch diameter, which are also signs of polybutylene.

PVC is best for drain or waste lines, but it isn’t a great choice for water supply lines, which tend to be highly pressurized. PVC is also not suitable for hot water lines. Instead, you’ll commonly see PVC for a toilet drain line or for plumbing vents to prevent airlocks, which can prevent water from flowing out of faucets.

Most people tend to use outdoor spigots more frequently in the summer. Watering plants, filling kiddie pools, having neighborhood water fights, and washing cars and pets are all outdoor activities people do when it's hot and sunny. The heat causes the pipes to expand, weakening the metal and creating cracks. The sudden spike in water use combined with this effect is why pipes burst often in the summer.

Yes, it’s necessary to have a sink drain stopper. While your sink will still work without a stopper, a stopper is necessary to keep things other than water from going down into your pipes and potentially clogging them. It prevents plumbing problems by keeping out unwanted debris and objects like hair, soap, toothpaste, dirt, and jewelry.

The Knightsen, CA homeowners’ guide to plumbing services

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