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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 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

54 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 Drain Raider Plumbing
Drain Raider Plumbing
5.0(
21
)
Drain Clog or Blockage - ClearDrain Clog or Blockage - Clear - For BusinessSewer Main - Clear+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
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
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Plumbing FAQs, answered by experts

No. You should never directly drain a water softener into a sewer cleanout. This practice is illegal in many areas because it could allow raw sewage to get into your drinking water and make you seriously ill. Many places have codes requiring a specific seal, pipe, and a large air gap between a water softener and a sewage cleanout. Check out Florida's Plumbing Building Code as an example of what these restrictions might look like.

A water pressure regulator, also known as a pressure-reducing valve (PRV), is typically located near the main water shut-off valve where the main water line enters your home. Common places to check are basements, utility areas, or outside near the water meter. The device is usually bell-shaped. Its purpose is to control the water pressure coming into your home from the public supply, protecting your pipes, plumbing fixtures, and appliances. If you can't find a regulator, your home might not have one. In cases of high water pressure, installing a PRV is recommended.

Yes. Sewer cameras are invaluable tools that can help pros safely diagnose problems with your septic system. Without a camera to look into your system, septic issue diagnoses would be a combination of guessing and past experience. However, a camera can help confirm ideas that your pro may already have about what’s wrong.

Main water shut-off valves last 10 to 20 years on average, though they can sometimes last longer. This depends in part on the material you choose. Brass valves are very durable, but more expensive bronze or stainless steel valves may last even longer. Main water shut-off valves often fail due to aging internal parts, such as rubber washers. However, corrosion and sediment buildup also contribute to valve failure. If purchasing a home at least 10 years old, you may want to replace the main water shut-off valve soon to avoid potential problems.

Repiping your plumbing is when you remove the old plumbing system and replace it with newer, more modern plumbing and drainage pipes. Typically, older homes are repiped to upgrade the plumbing system. If you have frequent issues with your home’s plumbing system or live in an older home with outdated pipes, consult a professional plumber about the best course of action for repiping your plumbing.

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.