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  • Average homeowner rating star icon4.8
    Average homeowner rating
  • Verified reviews icon10
    Verified excavation services reviews

Find Excavation pros in Colma

Avatar for Carlos J Romero Grading and Paving Contractors, Inc.

Carlos J Romero Grading and Paving Contractors, Inc.

5.00(
2
)
Approved Pro

Carlos J Romero Grading and Paving Contractors, Inc.

5.00(
2
)
Approved Pro
Customers say: Quick response
7 years of experience
Free onsite estimate

We are dedicated to providing our clients with the very best in excavation and building site services. We specialize in residential and commercial services and take pride in the attention to detail put into each of the projects we're involved with. We're known for our quality work and the integrity of our business. We look forward to building long-term relationships with our clients, and guarantee your satisfaction.

"Carlos and his team did an amazing job. Very punctual, and clean. Carlos explained everything that needed to be done, and why. Carlos was very reasonably priced and fair. I highly recommend Carlos and will be using him again for an upcoming project."

Eddie C on August 2021

We are dedicated to providing our clients with the very best in excavation and building site services. We specialize in residential and commercial services and take pride in the attention to detail put into each of the projects we're involved with. We're known for our quality work and the integrity of our business. We look forward to building long-term relationships with our clients, and guarantee your satisfaction.

"Carlos and his team did an amazing job. Very punctual, and clean. Carlos explained everything that needed to be done, and why. Carlos was very reasonably priced and fair. I highly recommend Carlos and will be using him again for an upcoming project."

Eddie C on August 2021


"They did a fabulous job and was very professional."

Timothy B on May 2025

Plumbing and Rooter Services with Free Estimates and emergency calls available. Sewer and Replacement, Camera Inspection, Drain repair and cleaning service, water heaters, toilets, sinks, faucets, showers repair and replacement, drain clogged.

"They did a fabulous job and was very professional."

Timothy B on May 2025


Avatar for H K & S Plumbing Co.

H K & S Plumbing Co.

4.72(
73
)
Approved Pro

H K & S Plumbing Co.

4.72(
73
)
Approved Pro
Super Service Award
Customers say: Quick response
76 local quotes requested
25 years of experience

Thank you for choosing H K & S Plumbing Co.! We are committed to providing quality workmanship and superior customer service to all of our existing, and future, clients. We strive to maintain our reputation as a high quality, service oriented company. No job is too big or too small. Call today!

"We had broken underground pipes that flooded ours and attached neighbors houses. We have a shared meter, with neighbors having their own shutoff, we did not. After 3 quotes, we felt most confident in Harry. He installed a shutoff valve for us, and now neighbors and us are not dependent on each other’s water. He then isolated and replaced the damaged pipes. He was able to do this without further damage to the house. He came in less than verbal quote and never tried to upsell, which was an issue with one of the other companies. We are very happy with Harry’s work, would highly recommend him."

Karen V on October 2025

Thank you for choosing H K & S Plumbing Co.! We are committed to providing quality workmanship and superior customer service to all of our existing, and future, clients. We strive to maintain our reputation as a high quality, service oriented company. No job is too big or too small. Call today!

"We had broken underground pipes that flooded ours and attached neighbors houses. We have a shared meter, with neighbors having their own shutoff, we did not. After 3 quotes, we felt most confident in Harry. He installed a shutoff valve for us, and now neighbors and us are not dependent on each other’s water. He then isolated and replaced the damaged pipes. He was able to do this without further damage to the house. He came in less than verbal quote and never tried to upsell, which was an issue with one of the other companies. We are very happy with Harry’s work, would highly recommend him."

Karen V on October 2025


Avatar for Ultra Construction Group Inc

Ultra Construction Group Inc

4.00(
1
)
Approved Pro

Ultra Construction Group Inc

4.00(
1
)
Approved Pro
126 local quotes requested
17 years of experience

We take great pride in our experience, expertise, quality and customer service that we provide to meet your needs. It is our mission to provide excellent workmanship and complete customer satisfaction from start to completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer a professional manner. Our reputation is based on service, safety and quality, regardless of how large or small the job.

"Quick, Effective and the project was done in a timely manner. Thank you Ultra!"

Shane D on February 2025

We take great pride in our experience, expertise, quality and customer service that we provide to meet your needs. It is our mission to provide excellent workmanship and complete customer satisfaction from start to completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer a professional manner. Our reputation is based on service, safety and quality, regardless of how large or small the job.

"Quick, Effective and the project was done in a timely manner. Thank you Ultra!"

Shane D on February 2025


Avatar for In & Out Plumbing & Construction Inc

In & Out Plumbing & Construction Inc

4.25(
64
)
Approved Pro

In & Out Plumbing & Construction Inc

4.25(
64
)
Approved Pro
Customers say: Quick response
236 local quotes requested
27 years of experience

In and Out Plumbing and Construction is a family owned business and we take pride in our honesty, our integrity, and ourselves. Our Plumbers and Technicians are trained, licensed, bonded and insured professionals. We focus on residential and commercial plumbing in the Bay Area. We are open 24/7 and on all HOLIDAYS.

"Job was done immediately and with no fuss, and the whole experience was as painless and forgettable as you would want all plumbing to be. "

Russell D on November 2025

In and Out Plumbing and Construction is a family owned business and we take pride in our honesty, our integrity, and ourselves. Our Plumbers and Technicians are trained, licensed, bonded and insured professionals. We focus on residential and commercial plumbing in the Bay Area. We are open 24/7 and on all HOLIDAYS.

"Job was done immediately and with no fuss, and the whole experience was as painless and forgettable as you would want all plumbing to be. "

Russell D on November 2025


Asphalt

No reviews yet

Asphalt

No reviews yet

We provide quality services Asphalt paving as well as concrete, stripping, and excavation.

We provide quality services Asphalt paving as well as concrete, stripping, and excavation.


Greentech Industry Inc.

No reviews yet

Greentech Industry Inc.

No reviews yet

General contracting firm Licensed and bond it. A-Z construction *demo *framing * plumbing *electrical * tiles *flooring * painting *complete remodeling

General contracting firm Licensed and bond it. A-Z construction *demo *framing * plumbing *electrical * tiles *flooring * painting *complete remodeling


Avatar for Path Forward Partners

Path Forward Partners

No reviews yet

Path Forward Partners

No reviews yet
7 years of experience

Path Forward Partners, Inc. founded by David Grunat, Greg Noblet, and Craig Pelletier to provide responsive, practical, and health-protective solutions to our clients environmental problems. To each project, we bring technical prowess, creativity, responsiveness, and scientific credibility which enable us to find solutions that are tailored to overcome the specific problems at hand. Since forming, our core principal team has expanded to include Julie Hayes and Nicholas Loizeaux as well as our valued staff of experienced scientists and engineers. Environmental engineering, Environmental consulting, Air quality monitoring, Environmental consulting firm, Vapor intrusion, Environmental engineer companies, Air dispersion modeling, Environmental risk assessments, Soil vapor extraction, Vapor intrusion, Soil and groundwater remediation, Groundwater remediation, Environmental engineering consultants, Toxicology and environmental health, Groundwater remediation systems

Path Forward Partners, Inc. founded by David Grunat, Greg Noblet, and Craig Pelletier to provide responsive, practical, and health-protective solutions to our clients environmental problems. To each project, we bring technical prowess, creativity, responsiveness, and scientific credibility which enable us to find solutions that are tailored to overcome the specific problems at hand. Since forming, our core principal team has expanded to include Julie Hayes and Nicholas Loizeaux as well as our valued staff of experienced scientists and engineers. Environmental engineering, Environmental consulting, Air quality monitoring, Environmental consulting firm, Vapor intrusion, Environmental engineer companies, Air dispersion modeling, Environmental risk assessments, Soil vapor extraction, Vapor intrusion, Soil and groundwater remediation, Groundwater remediation, Environmental engineering consultants, Toxicology and environmental health, Groundwater remediation systems


Avatar for Better Rooter INC.

Better Rooter INC.

5.00(
2
)

Better Rooter INC.

5.00(
2
)
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

Better Rooter Inc. has 15 + years of experience in sewer lateral replacements. We offer both trenchless pipe burst replacement and open trench replacement methods. We offer free sewer video inspections with estimate. Located in Richmond Ca, serving all around the bay with reasonable pricing and honest opinion.

"Better Rooter was efficient, reliable, professional, and well priced. The work was fantastic and we are so happy we found them!"

Theresa C on February 2023

Better Rooter Inc. has 15 + years of experience in sewer lateral replacements. We offer both trenchless pipe burst replacement and open trench replacement methods. We offer free sewer video inspections with estimate. Located in Richmond Ca, serving all around the bay with reasonable pricing and honest opinion.

"Better Rooter was efficient, reliable, professional, and well priced. The work was fantastic and we are so happy we found them!"

Theresa C on February 2023


MAVCO Deconstruction DO NOT CALL

5.00(
3
)

MAVCO Deconstruction DO NOT CALL

5.00(
3
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

Since 1997, We are a full-service Deconstruction & Demolition Company. We specialize in deconstructing for donation, to keep less from going to the landfills, make materials available for re-use, and get homeowners tax incentives for donating to any one of our partner 501(C)3 non-profit organizations. We also do hauling, trenching, and a number of other construction trades, to improve your home. We are CSLB Licensed (830631), Bonded, and Fully Insured. Please call us to inquire about all that we are capable of doing.

"They did a great job on all tasks!"

Todd B on November 2022

Since 1997, We are a full-service Deconstruction & Demolition Company. We specialize in deconstructing for donation, to keep less from going to the landfills, make materials available for re-use, and get homeowners tax incentives for donating to any one of our partner 501(C)3 non-profit organizations. We also do hauling, trenching, and a number of other construction trades, to improve your home. We are CSLB Licensed (830631), Bonded, and Fully Insured. Please call us to inquire about all that we are capable of doing.

"They did a great job on all tasks!"

Todd B on November 2022

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Excavating questions, answered by experts

It can take several weeks for the ground to settle after removing a tree, and the soil under larger, more mature trees can take months. The deeper the tree has been ground under the soil, the longer it will take to settle. However, this extra depth can help you plant new landscaping sooner because you’ll have more space for fresh soil.

The completion timeline for an in-ground swimming pool project typically ranges between 8 to 12 weeks, depending on weather conditions, the complexity of the design, and any unexpected ground conditions encountered during excavation.

A walk-behind trencher can cut through roots as long as they’re not too thick, making a project much easier than digging with a shovel and other hand tools. Assess your terrain and the number of trees in the surrounding area to determine if a walk-behind trencher will ease the job. Digging a trench by hand is much more time-consuming and labor-intensive. 

If you’re planning to dig on your property, you’ll need to check for underground utility lines. Call the national call-before-you-dig 811 number. Once connected to an operator, you can schedule a site visit to mark underground lines. This way, you won’t accidentally dig into pipes and can cause major (read: costly) issues.

Water lines are buried at various depths, depending on the type of line. For example, most sprinkler lines are buried between four and 12 inches underground. On the other hand, water mains usually sit between one and 3 feet below ground. However, they can go even deeper in cold climates to prevent freezing.

The Colma, CA homeowners’ guide to excavation services

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