Get matched with top septic tank pros in Colma, CA

Q: What does a septic tank look like?

• <div><p>Septic tanks come in multiple shapes, sizes, and materials. However, they&rsquo;re often round or rectangular in shape and made from concrete, fiberglass, or plastic. There&rsquo;s a range of <a href="https://www.angi.com/articles/how-big-is-septic-tank.htm">septic tank sizes</a>, with the average model measuring 30 to 40 square feet and holding 1,000 to 1,500 gallons of waste.</p></div>

Q: What time of year is best for pumping or emptying a septic tank?

• <div><p>The best times of year to pump or empty a septic tank are spring and fall. Many professionals recommend spring because the ground has thawed, making the tank easier to access, and any snowmelt or rainfall can aid in proper drainage. Pumping before summer is also ideal to avoid conflicts with vacations or outdoor gatherings.</p><p>Fall is another great option, as contractors may be less busy than in the spring. Servicing the tank in late fall or early spring can also reduce the risk of overflow from extra precipitation during winter and spring.</p><p>While summer is a possibility, winter is generally not recommended. The ground is often frozen, which can make it difficult to access the tank, and the waste inside may also be frozen.</p></div>

Q: How do I know if I need an engineered septic tank system vs. a conventional system?

• <div><p>Deciding between an engineered septic system and a conventional one depends on property size, soil quality, local regulations, and environmental factors. If your property has limited space, poor soil, or is close to sensitive environmental features, an engineered system may be required. Professional site evaluations, considering water usage, long-term plans, and budget constraints, can help determine the appropriate choice. Consulting with a septic system professional is crucial for ensuring compliance with regulations and selecting the best system for your property's unique needs.</p></div>

Q: Can I move a septic tank?

• <div><p>If your septic tank is still within its expected lifespan and you need to relocate it on your property, it's possible to do so. However, because the task is so labor-intensive and costly, most homeowners simply choose to abandon the old tank if possible and install a new system in the new location. In either case, hiring a professional installation company will be necessary for the job. </p></div>

Q: Is it better to have 30/50 psi or 40/60 psi for a well pump?

• <div><p>For the most part, choosing between 30/50 psi and 40/60 psi is based on your water-pressure preference. However, it can also depend a little bit on your house&mdash;if you have older plumbing, a lower water pressure can be easier on the pipes (and a bit more gentle on your well pump). </p><p>The lower 30/50 pressure is usually enough for a single-story home, but you may want 40/60 if you have multiple stories, as the extra pressure helps water flow smoothly up to the second floor.</p></div>

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Verified Reviews for Septic Tank Service pros in Colma, CA

*The Angi rating for Septic Tank Service companies in Colma, CA is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Septic Tank Service needs.

*The HomeAdvisor rating for Septic Tank Service companies in Colma, CA is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Septic Tank Service needs.

Last update on January 23, 2025

Reviewed in January 2025
Install circuit breaker and 240 outlet in preparation for new electric tank water heater. Took the time to consult with water heater contractor to make sure the correct parts were used, and placement of shutoff was done properly. Professional, prompt, and thorough. We are very pleased with...
BARAK ELECTRIC
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Reviewed in March 2023
They installed a tankless water heater for us, upgrading from our previous tank. Efficient install, great team, reasonable cost. They even managed to build a structure for the tankless heater that allowed us to reclaim space for a future linen closet. Highly recommend Jacob and the team!
Sovereignty Plumbing
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Reviewed in August 2018
Nice job that was my spectation project tanks to easy bay are home look nice and cleaner kitchen reasonable price nice employees responsible I will hire them again Easybay will made it far on these good company
Bay Easy Construction
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Reviewed in October 2016
The wax ring replacement went well. The technician was polite and answered my questions at various stages of the assessment/repair. The tech also noticed and tightened a loose bolt in the tank while finishing the job. Unfortunately, the associated washer had deteriorated, which resulted in the...
George Salet Plumbing Inc
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Reviewed in September 2016
Mike literally saved the day with his inspection. He was able to locate the septic which turned out not to be a legit septic and which helped give honesty to a property that was incorrectly listed at my time of escrow as having a legit septic. He was patient and provided a very detailed,...
Mr Rooter Plumbing of Mendocino & Lake Counties,
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Reviewed in August 2014
The plumber who came from this company seemed extremely knowledgeable and thorough, unlike others who simply announced that I needed a new water heater without even looking at my tank. However, I was promised that for $30 I would get a written quotation on the replacement, by e-mail within two...
Cabrillo Plumbing
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Reviewed in June 2013
Decided to use the gas card that I purchased for $5.00 today. Stop in at the Shell Gas Station in Daly City, CA. Slide in the card and filled my gas tank for $25.00. The process was smooth and easy. No problem. What a bargain! So happy to be a member of Angie's List. <br />
Shell
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Reviewed in October 2012
After looking for a plumber on Angie's List, I decided to go with Magic Plumbing and use one of their coupons. I called in the morning and the person answering the phone said that while they did not have a plumber available at the moment, they would send someone out in the afternoon. Luckily...
Magic Plumbing
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Find Septic tank pros in Colma

Nathan's Plumbing INC

4.5(

)

Septic System - RepairSeptic Tank - Clean or Pump Out

Serving Colma, CA and surrounding areas

Approved

In business since 2018

Credit card accepted

Offers commercial services

"The plumber was very patient, explained the work clearly, and provided fast and excellent service. I highly recommend him!"

140 neighbors recently requested a quote

Recommended by25%of homeowners

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TRIO Heating, Air & Plumbing

5.0(

)

Septic System - Install or ReplaceSeptic System - Repair

Serving Colma, CA and surrounding areas

Approved

In business since 2010

Free estimates

Emergency services offered

"My experience with Trio Heating and Air for my air conditioning installation was exceptional. From start to finish, they demonstrated professionalism and efficiency. The technicians arrived promptly and were well-prepared, guiding me through the process and recommending the perfect system for my home. Throughout the installation, they worked diligently, respecting my space and ensuring everything was installed correctly. Their clear communication and transparent pricing made the experience stress-free. Now, my home is consistently cool and comfortable, and I couldn't be happier with the results."

Heating & Air Conditioning Installations

+51

Response time4 hrs

Response rate93%

5 neighbors recently requested a quote

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McCormick Home Builders, Inc.

4.7(

)

Septic Tank - Clean or Pump OutSeptic Tank - Clean or Pump Out - For Business

Serving Colma, CA and surrounding areas

Approved

In business since 2017

Free estimates

Customers say: True professional

"Our landscaping in Menlo Park needed a complete refresh. The team replaced thirsty plants with drought-tolerant options that still provide plenty of color and curb appeal. We're using much less water without sacrificing appearance."

Response time6 hrs

Recommended by17%of homeowners

Septic System - Install or ReplaceSeptic System - Repair

Serving Colma, CA and surrounding areas

Approved

In business since 2007

Emergency services offered

Warranties offered

"haven't had the service yet, but have worked with them before and I want to stop receiving calls from the other providers."

36 neighbors recently requested a quote

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Home Pro Remodeling & Construction, Inc.

4.1(

)

Septic Tank - Clean or Pump OutSeptic Tank - Clean or Pump Out - For Business

Serving Colma, CA and surrounding areas

Approved

In business since 2019

Free estimates

Credit card accepted

"Ariel was great in explaininf the process to me and Omar and Ivan were very beat an kept me informed on what was happening. A love my beautiful bathroom."

Response time5 days

Recommended by77%of homeowners

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Raya Engineering

New to Angi

Septic System - Install or ReplaceSeptic System - Install or Replace - For BusinessSeptic System - Repair+1 more

Serving Colma, CA and surrounding areas

Approved

In business since 2011

Free estimates

Emergency services offered

Here at Raya Engineering, we sustain our company on the principal that our customers come first. We offer services that are tailored to your needs and we're ready to show you what our experience can bring to your project! Call us today!

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RSF Construction Inc.

1.0(

)

Septic Tank - Clean or Pump OutSeptic Tank - Clean or Pump Out - For Business

Serving Colma, CA and surrounding areas

Approved

In business since 2019

Free estimates

Credit card accepted

RSF Construction Inc. is a leader in providing our customers with the highest quality service in an honest, efficient, and professional way. Our pledge is to create successful relationships with our customers, employees and community by building trust, treating every project with the utmost integrity and exceeding expectations. We look forward to working with you!

Septic Tank - Clean or Pump OutSeptic Tank - Clean or Pump Out - For Business

Serving Colma, CA and surrounding areas

In business since 1979

Free estimates

Credit card accepted

"We've been using Caccia Plumbing to take care of any plumbing needs that pop up at our rental properties. Everyone we deal with is courteous, sharp, and incredibly meticulous at what they do. From Christina and Anthony, who handle initial calls and scheduling, to Abnan and the team of technicians that get in and do the work... everyone is professional and demonstrates great work ethics. I don't have to worry about ANYTHING!!! It is wonderful to have a company out there that supports me every step of the way in getting repairs completed with the highest quality and craftsmanship I have ever seen. Joe Romano Burlingame, CA"

Meet Geno Caccia - Owner of James Caccia Plumbing

Recommended by93%of homeowners

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Resendiz Handyman & Plumbing

5.0(

)

Septic System - Install or ReplaceSeptic System - Install or Replace - For BusinessSeptic System - Repair+3 more

Serving Colma, CA and surrounding areas

Free estimates

"It went great they did observation,good performance they did the job right and they were clean."

+21

Recommended by100%of homeowners

Septic System - Install or ReplaceSeptic System - Install or Replace - For BusinessSeptic System - Repair+3 more

Serving Colma, CA and surrounding areas

Free estimates

Emergency services offered

"Went extremely fast and easy. Drain clogged for a week no matter what I tried. Uriel came about 10 minutes after the phone call, and was out 10 minutes later. Mask on, and made sure he made no mess. Would highly recommend!"

+23

Recommended by88%of homeowners

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Showing 1-10 of 31

Septic Tanks questions, answered by experts

Septic tanks come in multiple shapes, sizes, and materials. However, they’re often round or rectangular in shape and made from concrete, fiberglass, or plastic. There’s a range of septic tank sizes, with the average model measuring 30 to 40 square feet and holding 1,000 to 1,500 gallons of waste.

The best times of year to pump or empty a septic tank are spring and fall. Many professionals recommend spring because the ground has thawed, making the tank easier to access, and any snowmelt or rainfall can aid in proper drainage. Pumping before summer is also ideal to avoid conflicts with vacations or outdoor gatherings.

Fall is another great option, as contractors may be less busy than in the spring. Servicing the tank in late fall or early spring can also reduce the risk of overflow from extra precipitation during winter and spring.

While summer is a possibility, winter is generally not recommended. The ground is often frozen, which can make it difficult to access the tank, and the waste inside may also be frozen.

Deciding between an engineered septic system and a conventional one depends on property size, soil quality, local regulations, and environmental factors. If your property has limited space, poor soil, or is close to sensitive environmental features, an engineered system may be required. Professional site evaluations, considering water usage, long-term plans, and budget constraints, can help determine the appropriate choice. Consulting with a septic system professional is crucial for ensuring compliance with regulations and selecting the best system for your property's unique needs.

If your septic tank is still within its expected lifespan and you need to relocate it on your property, it's possible to do so. However, because the task is so labor-intensive and costly, most homeowners simply choose to abandon the old tank if possible and install a new system in the new location. In either case, hiring a professional installation company will be necessary for the job.

For the most part, choosing between 30/50 psi and 40/60 psi is based on your water-pressure preference. However, it can also depend a little bit on your house—if you have older plumbing, a lower water pressure can be easier on the pipes (and a bit more gentle on your well pump).

The lower 30/50 pressure is usually enough for a single-story home, but you may want 40/60 if you have multiple stories, as the extra pressure helps water flow smoothly up to the second floor.

The Colma, CA homeowners’ guide to septic tank services

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

See all articles

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•
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•
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How Much Does It Cost to Locate a Septic Tank? [2026 Data]
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•
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Crank Up Your Understanding of Septic Tank Volume
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•
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What’s the Right Septic Tank Size for Me?
Septic tank sizes vary depending on the size of your home, how many people live there, how much water you use, and more. Read on to learn how to determine the right size for you.
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•
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Are Septic Tanks Bad? Pros and Cons to Consider Before Moving Into a House With a Septic System
If you’ve never lived in a house with a septic system before, you might be wondering: Are septic tanks bad? Here are some of the pros and cons.
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•
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How to Build a Small Septic Tank for a Rural Property
Want to learn how to build a septic tank for your rural or off-grid property? First, check your local laws, then dive into these general guidelines.