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  • Average homeowner rating star icon4.5
    Average homeowner rating
  • Verified reviews icon118
    Verified excavation services reviews

Find Excavation pros in Sammamish

Evergreen Sanitation Inc

4.35(
103
)
Approved Pro

Evergreen Sanitation Inc

4.35(
103
)
Approved Pro
Customers say: Super punctual
44 local quotes requested
68 years of experience

Evergreen Sanitation does it all. We specialize in all aspects of onsite systems. We also provide grease trap pumping for restaurants (800) 433-1678. Renton Septic Inspections, AAA Septic Service, A Septic Pumper, Coastal Environment, East Hill Septic Service, Eastside Septic Service, Enumclaw Septic Service, Frontier Septic Service, Greenhaus Portable Restrooms, Issaquah Septic Service, J J Jackson Septic Service, Long Septic Service, Lyon Septic Service, Maple valley Septic Service, Sani-Mart Septic Service, Sky Valley Septic Service, Tandem Service Corporation Inc, Vans Septic Service. Additional phone numbers - (206) 362-6998, (206) 362-6998, (206) 622-7070, (253) 630-5262, (253) 852-0550, (360) 336-2009. Additional DBAs - Additionl DBAs - A A A Septic Service, A Septic Pumper, Coastal Environment East Hill Septic Service, Eastside Septic Service, Enumclaw Septic Service & Frontier Septic Service. See BBB for additional phone nubers and DBAs.

"Great. It was not an easy job but they went the extra mile to get it done. Thanks."

Rick W on May 2021

Evergreen Sanitation does it all. We specialize in all aspects of onsite systems. We also provide grease trap pumping for restaurants (800) 433-1678. Renton Septic Inspections, AAA Septic Service, A Septic Pumper, Coastal Environment, East Hill Septic Service, Eastside Septic Service, Enumclaw Septic Service, Frontier Septic Service, Greenhaus Portable Restrooms, Issaquah Septic Service, J J Jackson Septic Service, Long Septic Service, Lyon Septic Service, Maple valley Septic Service, Sani-Mart Septic Service, Sky Valley Septic Service, Tandem Service Corporation Inc, Vans Septic Service. Additional phone numbers - (206) 362-6998, (206) 362-6998, (206) 622-7070, (253) 630-5262, (253) 852-0550, (360) 336-2009. Additional DBAs - Additionl DBAs - A A A Septic Service, A Septic Pumper, Coastal Environment East Hill Septic Service, Eastside Septic Service, Enumclaw Septic Service & Frontier Septic Service. See BBB for additional phone nubers and DBAs.

"Great. It was not an easy job but they went the extra mile to get it done. Thanks."

Rick W on May 2021


Avatar for Knockout Plumbing & Mechanical, LLC

Knockout Plumbing & Mechanical, LLC

5.00(
14
)
Approved Pro

Knockout Plumbing & Mechanical, LLC

5.00(
14
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
19 local quotes requested

Knockout Plumbing & Mechanical LLC is a local Seattle based company. Knockout strives to leave their clients with peace of mind when each job is said and done. From hydro jetting and sewer repair to remodels/new construction we knock it out. We look forward to hearing from you, so please never hesitate to reach out.

"We had a great experience with Knockout. Small plumbing repair job that they were able to fix quickly. Gave us multiple options on how best to address the immediate problem, as well as prospective problems in the future. No complaints and would definitely hire again."

Will B on March 2024

Knockout Plumbing & Mechanical LLC is a local Seattle based company. Knockout strives to leave their clients with peace of mind when each job is said and done. From hydro jetting and sewer repair to remodels/new construction we knock it out. We look forward to hearing from you, so please never hesitate to reach out.

"We had a great experience with Knockout. Small plumbing repair job that they were able to fix quickly. Gave us multiple options on how best to address the immediate problem, as well as prospective problems in the future. No complaints and would definitely hire again."

Will B on March 2024


Avatar for Roto-Rooter Plumbing & Water Cleanup

Roto-Rooter Plumbing & Water Cleanup

4.13(
388
)
Approved Pro

Roto-Rooter Plumbing & Water Cleanup

4.13(
388
)
Approved Pro
Customers say: Quick response
80 local quotes requested
90 years of experience

Seattle's varied neighborhoods present unique plumbing challenges, from aging pipes in Ballard's historic homes to advanced plumbing systems in South Lake Union's new buildings. Roto-Rooter's experienced plumbing technicians deliver immediate solutions throughout these communities, equipped with professional-grade tools for any emergency repair. Our 24-hour licensed plumbers respond quickly with transparent pricing and guaranteed work, available every day of the year. When plumbing emergencies strike your home, trust Seattle's most reliable plumbers, call (206) 935-6600 for immediate assistance.

"My elderly mother is partially blind and disabled. On November 1, 2021 her washing machine broke leaking water in her home. In desperation she called rotor rooter. Roto rooter came out, stopped the leak, and put dryers in and left. They returned a few days later to remove the dryers. The technician quoted my mother a cost of about $3000.00. My mother signed a contract but could not see what she was signing. After Roto rooter Reno removed the dryers they sent a bill to my mother for $9000.00. The contract she signed stated Roto rooter would remove walls, roofing, insulation, baseboard, tile etc. Roto rooter didn’t do any of those things. Roto rooter is price gauging and took advantage of an elderly disabled woman. Roto rooter technicians were in the home no more than 3 hours total. First my mother did not have capacity to enter into a contract as she couldn’t see what she was signing. 2 Roto rooters technicians told her the cost would be about $3000.00. 3 Roto rooter did not do the work in the contract. I believe Roto rooter is commuting elder abuse and fraud."

Marcus R on December 2021

Seattle's varied neighborhoods present unique plumbing challenges, from aging pipes in Ballard's historic homes to advanced plumbing systems in South Lake Union's new buildings. Roto-Rooter's experienced plumbing technicians deliver immediate solutions throughout these communities, equipped with professional-grade tools for any emergency repair. Our 24-hour licensed plumbers respond quickly with transparent pricing and guaranteed work, available every day of the year. When plumbing emergencies strike your home, trust Seattle's most reliable plumbers, call (206) 935-6600 for immediate assistance.

"My elderly mother is partially blind and disabled. On November 1, 2021 her washing machine broke leaking water in her home. In desperation she called rotor rooter. Roto rooter came out, stopped the leak, and put dryers in and left. They returned a few days later to remove the dryers. The technician quoted my mother a cost of about $3000.00. My mother signed a contract but could not see what she was signing. After Roto rooter Reno removed the dryers they sent a bill to my mother for $9000.00. The contract she signed stated Roto rooter would remove walls, roofing, insulation, baseboard, tile etc. Roto rooter didn’t do any of those things. Roto rooter is price gauging and took advantage of an elderly disabled woman. Roto rooter technicians were in the home no more than 3 hours total. First my mother did not have capacity to enter into a contract as she couldn’t see what she was signing. 2 Roto rooters technicians told her the cost would be about $3000.00. 3 Roto rooter did not do the work in the contract. I believe Roto rooter is commuting elder abuse and fraud."

Marcus R on December 2021


Avatar for P4 Construction, LLC

P4 Construction, LLC

5.00(
2
)
Approved Pro

P4 Construction, LLC

5.00(
2
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
12 years of experience

We are a locally owned and operated company that values honesty and integrity, and treats your home as if it were our own. We offer drainage services our job is to control and direct water away from your home or building.We have 13 years in the drainage field and specialize in,waterproofing foundation walls,basement drainage,yard drains,french drains,crawlspace interior drain systems,sump pump installations and replacement,new pvc downspout drain pipe installations,clean and or repair downspout pipes.You will find us to be competitively priced, paying close attention to the details of each and every project that we are involved with,we work with the best materials out there.We take pride on what we do.Our hard work speaks for itself.We look forward on helping you with your drainage projects.

"We hired them to install a 40 foot french drain. Eric was very knowledgeable and professional, not to mention a very nice person and good listener. He was punctual and he and his crew were extemely hard workers. The job functions as promised, looks great and they were very conscientious about how they left the work area neat and clean. I wish I could hire them for other projects."

Bill G on June 2024

We are a locally owned and operated company that values honesty and integrity, and treats your home as if it were our own. We offer drainage services our job is to control and direct water away from your home or building.We have 13 years in the drainage field and specialize in,waterproofing foundation walls,basement drainage,yard drains,french drains,crawlspace interior drain systems,sump pump installations and replacement,new pvc downspout drain pipe installations,clean and or repair downspout pipes.You will find us to be competitively priced, paying close attention to the details of each and every project that we are involved with,we work with the best materials out there.We take pride on what we do.Our hard work speaks for itself.We look forward on helping you with your drainage projects.

"We hired them to install a 40 foot french drain. Eric was very knowledgeable and professional, not to mention a very nice person and good listener. He was punctual and he and his crew were extemely hard workers. The job functions as promised, looks great and they were very conscientious about how they left the work area neat and clean. I wish I could hire them for other projects."

Bill G on June 2024


Avatar for Diane's Tank Removal Services, LLC

Diane's Tank Removal Services, LLC

4.88(
4
)
Approved Pro

Diane's Tank Removal Services, LLC

4.88(
4
)
Approved Pro
Customers say: Quality work
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
27 years of experience

Our mission at Diane's Tank Removal Services, LLC, is to perform for our customers the highest level of quality services at fair and competitive market prices, and to ensure the longevity of our company through repeat and referral business achieved by customer satisfaction in all areas; including timelines, attention to detail, and service-minded attitudes. Give us a call today!

"They are Great People and did everything to help me. I Highly Recommend them to others."

Earl C on February 2021

Our mission at Diane's Tank Removal Services, LLC, is to perform for our customers the highest level of quality services at fair and competitive market prices, and to ensure the longevity of our company through repeat and referral business achieved by customer satisfaction in all areas; including timelines, attention to detail, and service-minded attitudes. Give us a call today!

"They are Great People and did everything to help me. I Highly Recommend them to others."

Earl C on February 2021


Avatar for Gaston Bros. Excavating, Inc.

Gaston Bros. Excavating, Inc.

4.97(
16
)
Approved Pro

Gaston Bros. Excavating, Inc.

4.97(
16
)
Approved Pro
Super Service Award
Customers say: True professional
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
45 years of experience

GBE has over 44 years of experience in the utility, demolition and excavation industry around the greater Seattle area. If you want your exterior home or business project completed efficiently and on budget, give the owner Gary Gaston a call. He will personally meet with you on site and walk you through every detail from start to finish so your project runs smoothly. We look forward to working with you!

"No none sense! Super skilled! Beyond expectations."

John B on July 2024

GBE has over 44 years of experience in the utility, demolition and excavation industry around the greater Seattle area. If you want your exterior home or business project completed efficiently and on budget, give the owner Gary Gaston a call. He will personally meet with you on site and walk you through every detail from start to finish so your project runs smoothly. We look forward to working with you!

"No none sense! Super skilled! Beyond expectations."

John B on July 2024


Avatar for UNIVERSAL LANDSCAPE CORP

UNIVERSAL LANDSCAPE CORP

4.96(
46
)
Approved Pro

UNIVERSAL LANDSCAPE CORP

4.96(
46
)
Approved Pro
Customers say: Super punctual
Recommended by 97% of Angi customers
Recommended by 97% of HomeAdvisor customers
20 years of experience

Business owners Randy Metz and Joey Istvan have been creating large scale, landscape construction installations since 2005 and are becoming more refined in their craft every year. They take pride in our local community and have based their success on their many return customers. Their use of modern excavation machines combined with their expertise and eye for quality landscaping makes them one of the areas top choices for landscape installation. To schedule your appointment, contact Joey via phone at 425-346-1653 or Eileen via email at [email protected].

"Very skilled and knowledgeable. Easy to work with. Excellent craftsmanship. Accurate estimates in both time and cost. Would definitely use again."

Mike L on October 2024

Business owners Randy Metz and Joey Istvan have been creating large scale, landscape construction installations since 2005 and are becoming more refined in their craft every year. They take pride in our local community and have based their success on their many return customers. Their use of modern excavation machines combined with their expertise and eye for quality landscaping makes them one of the areas top choices for landscape installation. To schedule your appointment, contact Joey via phone at 425-346-1653 or Eileen via email at [email protected].

"Very skilled and knowledgeable. Easy to work with. Excellent craftsmanship. Accurate estimates in both time and cost. Would definitely use again."

Mike L on October 2024


Avatar for Peanuts Professional Work, LLC

Peanuts Professional Work, LLC

5.00(
3
)
Approved Pro

Peanuts Professional Work, LLC

5.00(
3
)
Approved Pro
Customers say: Quick response
1 years of experience
Free onsite estimate

We have a minimum of $1500 per day, 1 machine, cost goes up according to size and scope of the project. We take great pride in our experience, expertise, quality and customer service that we provide to meet the consumers 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 in a professional manner. Our reputation is based on service, safety and quality, regardless of how large or small the job.

"This was an amazing company. Didn?t bullshit me on price, was very straightforward and genuine. Made my idea come to a reality and more! Awesome people, awesome work would definitely recommend! Thank you so much for your hard work and being so kind. "

Jordan B on March 2025

We have a minimum of $1500 per day, 1 machine, cost goes up according to size and scope of the project. We take great pride in our experience, expertise, quality and customer service that we provide to meet the consumers 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 in a professional manner. Our reputation is based on service, safety and quality, regardless of how large or small the job.

"This was an amazing company. Didn?t bullshit me on price, was very straightforward and genuine. Made my idea come to a reality and more! Awesome people, awesome work would definitely recommend! Thank you so much for your hard work and being so kind. "

Jordan B on March 2025


Fuel Tank Installation Company, Inc.

4.89(
19
)
Approved Pro

Fuel Tank Installation Company, Inc.

4.89(
19
)
Approved Pro
Customers say: True professional
Recommended by 94% of Angi customers
Recommended by 94% of HomeAdvisor customers
11 local quotes requested

We pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade with over 50 years in business and will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business! Book with us online or feel free to give us a call today!

"This company was efficient, communicative and reasonably priced. I needed to decommission my oil tank and Paul did a great job. "

Alex E on June 2025

We pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade with over 50 years in business and will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business! Book with us online or feel free to give us a call today!

"This company was efficient, communicative and reasonably priced. I needed to decommission my oil tank and Paul did a great job. "

Alex E on June 2025


Envirotank, LLC

4.98(
25
)
Approved Pro

Envirotank, LLC

4.98(
25
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
36 local quotes requested

We take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumer's 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 in a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job.

"Prompt, fully explained what they were doing, best price I found."

Ila B on October 2022

We take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumer's 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 in a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job.

"Prompt, fully explained what they were doing, best price I found."

Ila B on October 2022

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Excavating questions, answered by experts

Most residential basements are 8 to 10 feet deep. You can dig deeper depending on building codes, but it does become more difficult. You’ll likely need to install stronger foundation walls and additional supports to handle the increased load. Depending on the water table, you may also need a water management system. Clay soil can support a deeper foundation than sandy soil. A structural engineer will be able to tell you the maximum, feasible depth.

Trenches are 12 to 24 inches deep and 8 inches wide. However, the right depth for your trench will depend on the nature of your project. For example, if you’re digging a trench as part of a French drain installation, it should be 18 inches deep. An excavation professional can explain how deep your trench should be.

Slab foundations are more affordable than crawl spaces because they require minimal excavation, as the slab sits directly on the ground or on footers that only sink a few feet into the ground. Crawl spaces require excavation of the entire footprint of the home to several feet below the surface. Not only does that mean higher labor costs, but more materials are necessary for the concrete foundation walls.

In most areas, you will need a permit for excavation work, even if the project only involves grading or yard leveling. Excavation permits help protect the topography in your area and can avoid issues with poor drainage. In most cases, your excavation company will know whether or not permits are required and will even pull them and close them out for you before and after the job. You can also verify whether permits are necessary by calling your local building department and explaining the proposed project.

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 Sammamish, WA homeowners’ guide to excavation services

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

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