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  • Average homeowner rating star icon4.8
    Average homeowner rating
  • Verified reviews icon10
    Verified drain pipe installations reviews

Top-Rated Drain pipe installers in Knightsen - Updated Nov 2026

Avatar for Albert Nahman Plumbing, Heating, and Cooling
Albert Nahman Plumbing, Heating, and Cooling
4.4(
721
)
Sump Pump or Interior Foundation Drains - Install

Serving Knightsen, CA and surrounding areas

Approved (Corporate)

In business since 1981

Free estimates

Warranties offered

"My wife and I bought a house a couple years ago, and became owners of a radiant heating systems installed more than 20 years ago. Tony and Damian did a great job of understanding how my radiant heating system works, what repairs were needed/what was failing, and where upgrades were needed. They replaced the pump, both expansion tanks, and the neutralizer. Additionally, they noticed the hot water tank was installed incorrectly, and the hot and cold water connections were flipped. It's amazing the system worked, and it's nice to have a system that's correctly installed (even if it's 20 years later!). Additionally, they secured the expansion tanks to the wall (now required by code), replaced the deteriorating copper pipes connected to the neutralizer with plastic (I'm sure this is code now as well), and re-routed the overflow pipes to the outside (rather than the floor!). You can't go wrong with these guys, well done, they're true craftsmen to the trade."
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%
41 neighbors recently requested a quote
Avatar for H K & S Plumbing Co.
H K & S Plumbing Co.
4.3(
96
)
Sump Pump or Interior Foundation Drains - Install

Serving Knightsen, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2000

Free estimates

Emergency services offered

"Harry was very thorough and professional. He replaced the shut-off value under the toilet and rebuilt the inside of the tank. He then fixed the leaking pipe under the kitcken sink. Everything is working great so far. I would definitely use H K & S Plumbing if I ever need service again. Reasonable and a pleasure to work with."
H K & S Plumbing Co.
Response time11 hrs
27 neighbors recently requested a quote
Recommended by73%of homeowners
Avatar for Isaac Nathaniel Excavating and Paving
Isaac Nathaniel Excavating and Paving
5.0(
39
)
Basement Drainage Channels - Install

Serving Knightsen, CA and surrounding areas

Approved

Super Service Award Winner

Free estimates

Emergency services offered

Warranties offered

"Isaac Nathaniel did a wonderful job replacing our driveway. His work was thorough and he was present throughout the process. He kept us notified about each step and completed the job on schedule. Great work and customer service!"
Nice broom finish driveway with lights in stairs
Back yard excavating for house addition
Client had serious water problems water getting under the house we put french drain under concrete with sealant.problem solved?
Built play area for kids,had to flatten area and install 2 retaining walls
Installed pavers and retaining wall

+33

5 neighbors recently requested a quote
Recommended by92%of homeowners
Avatar for M&J Prime Builders
M&J Prime Builders
5.0(
21
)
Yard Drainage

Serving Knightsen, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2009

Free estimates

Emergency services offered

"These guys were great. Professional, knowledgeable, thorough. Fixed my leaking/broken sprinkler manifold system- really impressive and well thought out approach to fixing our issue and avoiding the problem from coming back anytime soon. Really glad I found them. Did great work- and took pride in the quality of their work. Will definitely hire them for additional projects."
Retaining wall and pavers driveway
Retaining wall and pavers driveway
Retaining wall and pavers driveway
Retaining wall and pavers driveway
Retaining wall and pavers driveway

+2

Response time11 hrs
Response rate100%
2 neighbors recently requested a quote
Avatar for Groundworks
Groundworks
4.6(
19
)
Sump Pump or Interior Foundation Drains - InstallBasement Drainage Channels - Install

Serving Knightsen, CA and surrounding areas

Approved (Corporate)

In business since 2023

Free estimates

Warranties offered

"Several months ago, I noticed that doors in my house were no longer closing and latching. Specifically, my front door no longer locked completely. Once I got it fully locked I could no longer open my front door anymore, so I knew I had foundation issues. I called Bay Area Underpinning to come look at my foundation and do some measurements. We discovered that my front living room was sinking approximately one and a half to 2 inches. The crew, Lance Sladek, Jake Hall, and Eddie Shaw, crawled under my house and dug 30 to 40 foot holes in the ground to install piers that would lift my foundation. These gentlemen worked in very cramped dirty conditions in 90-100° weather. I was extremely happy with their work and their dedication to doing the job correctly. My after the foundation lift, my front door as well as several other doors in my home were able to close and latch again."
Basement
Basement
Basement
Basement
Foundation

+16

169 neighbors recently requested a quote
Recommended by58%of homeowners
Avatar for Oakmount Concrete
Oakmount Concrete
4.9(
13
)
Foundation Drainage - Install or ReplaceYard Drainage

Serving Knightsen, CA and surrounding areas

Approved

In business since 2010

Free estimates

Credit card accepted

"Retaining wall replacement project: 50' wood retaining wall with French drain behind it Victor is a very competent, customer oriented businessman with attention to details during project execution. Professional engagement (first visit, quote, Q&A, contract) Project management (on-time project start, efficient execution and timely completion) Final walk-through to answer questions. We are discussing other projects with Victor. It's a pleasure to have found him through Angi."
Acid Finish Stamped Concrete
Acid Finish Stamped Concrete
Standard concrete broom finish driveway
Stamped Concrete Roman style
Slate stamped with boarder

+22

Response time10 hrs
3 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for Sandoval R. Landscaping Inc.
Sandoval R. Landscaping Inc.
5.0(
9
)
Yard Drainage

Serving Knightsen, CA and surrounding areas

Approved

In business since 2009

Free estimates

Warranties offered

Our mission is to be a provider that brings back the personal touch with our customers. We will build a relationship that will last a lifetime after you see our quality work. As a locally owned and operated business we feel invested in our clients and constantly strive for customer satisfaction. We won't leave until the job is done right! Call or click to schedule an estimate today!

Concrete stump
Front yard replaced
Steps and turf
Front yard replaced
Steps and turf

+46

Response time4 days
Recommended by88%of homeowners
SGB Inc.
5.0(
6
)
Foundation Drainage - Install or ReplaceYard Drainage

Serving Knightsen, CA and surrounding areas

Approved

In business since 2015

Free estimates

Credit card accepted

We are 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. \n

Response time2 days
Response rate86%
Recommended by100%of homeowners
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Showing 1-10 of 243
Drain Pipe Installation FAQs, answered by experts

The best way to unclog a bathtub drain is to pour a pot of boiled water down the drain, being careful not to splash yourself. However, take precautions, as boiling water can damage PVC pipes and joints. Follow up with ½ cup of baking soda and ½ cup of vinegar. Cover the drain with a small sink plunger and let it sit for 15 minutes. Pour boiling water down the drain again and replace the drain stopper.

If you have a sink stopper, it can feel more challenging to clean the drain without removing it, but here are a few simple steps:

  • Pour ½ cup baking soda into the drain using a funnel

  • Pour 1 ½ cups vinegar into the drain

  • Close the sink stopper for 15–20 minutes

  • Open the drain

  • Pour 2 cups of boiling water down the drain (be cautious as boiling water can damage some types of pipes)

If the drain isn’t unclogged, repeat the process.

There are several signs that can indicate your leach lines are broken, failing, or in need of repair, including puddles of water or a marshy consistency to the ground above or around the pipes, slow drainage or plumbing backups inside your home, and noticeable odors or gurgling sounds coming from your leach field. Keeping your septic system properly maintained, including having your septic tank pumped at regular intervals, can help ensure your leach lines stay in good working order for a long time.

Start by unscrewing the overflow valve, which is located on the wall of your tub between the floor drain and the tub spout. Gently insert a plumbing snake down into the pipe, move it back and forth, and pull it out. Remove any hair, debris, and soap scum that comes out with it. Repeat the process until the snake comes out clean, and then reinstall the cap on your overflow valve.

There are several common signs that your main sewer line may be clogged. Key indicators include multiple fixtures in your home draining slowly, gurgling sounds coming from drains or toilets, and water backing up into showers, sinks, or toilets. You might also notice water backing up from the plumbing system's drain cleanout, water in your basement drain, or unexplained wet patches on your lawn. Foul odors, such as the smell of raw sewage or rotten eggs, are another common symptom. The most reliable way to confirm a main sewer line clog is to hire a professional plumber to perform a camera inspection.

The Knightsen, CA homeowners’ guide to drain pipe installations

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