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Avatar for Castaneda Grading & Excavating
Castaneda Grading & Excavating
5.0(
23
)

Serving Colma, CA and surrounding areas

Approved

In business since 2020

Free estimates

Credit card accepted

"Humberto is a very creative problem solver! Personable and definitely interested in customer satisfaction, so spends time understanding the full scope of the problem. The problem was the subterranean north wall of the sanctuary of First Presbyterian Church in Vallejo that was far from being waterproof, especially with the rains last winter. Castaneda dug out the soil next to the wall, pressure washed it and applied two coats of DryLok and then a layer of Henryâ s waterproofing. Then Humberto installed a French drain and then a big pipe to route the water off of five downspouts. To get the correct drainage slope, more excavating needed to be done than anticipated. Removed five landscaped trees and lots of concrete that was in the way of the drains which were to be routed under city sidewalks."
Garden
Graded
Finished driveway
Final slope grade
Finish grade 4 inches below sidewalk

+77

Response time1 day
Response rate95%
28 neighbors recently requested a quote
Avatar for In & Out Plumbing & Construction Inc
In & Out Plumbing & Construction Inc
4.1(
76
)

Serving Colma, CA and surrounding areas

Approved

In business since 1998

Free estimates

Emergency services offered

"With our rather old cabin-style home, the plumbing from the kitchen sink had a plug of hardened grease over 30 years old. We discovered this the first day when they drilled through it with a snake; we had them return a couple of days later with a hydrojet unit to clean it out. Our house is located in the mountains, and may not be particularly easy to get the equipment out here, but they had very little difficulty. They used a lengthy hose to go around the back of the house, then sent the nozzle through the pipe behind the trap to clear it out. I was originally concerned about navigating past the elbow joints in the pipe, and the fact that we have a septic tank that I didn't want to fill up; but neither was a problem, and the job was done in about an hour. The sound of the drain flowing never sounded so sweet."
San Francisco Sewer Line
Floor Drain
San Francisco Sewer Line
Floor Drain
San Francisco Sewer Line

+27

Response time1 day
Response rate97%
41 neighbors recently requested a quote
Avatar for JPC Rooter & Plumbing
JPC Rooter & Plumbing
4.8(
46
)

Serving Colma, CA and surrounding areas

Approved

In business since 1999

Free estimates

Emergency services offered

"JPC team did an excellent, professional job on our storm water sump pumps related project. (Two sump pumps were working; they did not need repairs.) 1) Cut and replaced two broken pipes; installed new valves 2) New float sensors installed and set to auto-start the sump pumps 3) long outflow pine, connecting to city's water drainage system, was cleaned using long snake and high pressure water pump combination. 4) successful final test with water filled in water chamber and sump pumps working 5) JPC gave warranty for work done and signed up for once-a-year annual maintenance visit in October."
Our Work
Our Work
Our Work
Our Work
Our Work

+56

Response time4 hrs
Recommended by100%of homeowners
Avatar for McCormick Home Builders, Inc.
McCormick Home Builders, Inc.
4.5(
28
)

Serving Colma, CA and surrounding areas

Approved

In business since 2017

Free estimates

Customers say: True professional

"We hired McCormick Home Builders to remodel our living room, and we are beyond pleased with the result. The team was professional, worked efficiently, and Aris design ideas made a huge difference. The room feels so much brighter and more spacious. This was the best decision we made for our home, and we were already planning our next remodel with them."
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+1

Response time6 hrs
Recommended by25%of homeowners
Home Pro Remodeling & Construction, Inc.
4.1(
31
)

Serving Colma, CA and surrounding areas

Approved

In business since 2019

Free estimates

Credit card accepted

"I had my garden and bathroom remodel done. Albert and Samuel were professional, friendly, and a delight to work with. They're responsive and reliable. I also like the subcontractors whom they used on my project. They kept me informed of everything and I appreciate their excellent work."
Response time5 days
Recommended by77%of homeowners
Avatar for Carlos J Romero Grading and Paving Contractors, Inc.
Carlos J Romero Grading and Paving Contractors, Inc.
5.0(
2
)

Serving Colma, CA and surrounding areas

Approved

In business since 2018

Free estimates

Emergency services offered

"CJR is all about quality, they treat you like a real customer. The team is extremely professional, they clean the site daily before leaving for the day. You and your neighbors will not even notice its a site under construction. The quality of work is far and beyond your expectations. I will continue to use CJR for upcoming projects and referrals to all my friends and family."
Response time1 day
Recommended by50%of homeowners
Avatar for Ultra Construction Group Inc
Ultra Construction Group Inc
4.3(
4
)

Serving Colma, CA and surrounding areas

Approved

In business since 2008

Free estimates

Emergency services offered

"Gio and the entire Ultra Construction Group team are amazing. They showed up on time and were incredibly organized and their attention to detail made the project even better then I imagined. I would highly recommend this company for any concrete project big or small."
Response time2 days
59 neighbors recently requested a quote
RSF Construction Inc.
1.0(
1
)

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!

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Excavating questions, answered by experts

In the United States, a depth of 36 inches (three feet) for underground water lines is the accepted industry standard. This depth varies from location to location based on local conditions. In areas with colder winters, they may be buried deeper to prevent frozen well water pipes : This is usually at least six inches below the frost level. The International Plumbing Code calls for a minimum of 12 inches below grade.

The average cost for pool excavation is $2,500. This cost can range from $450 to $4,500, depending on the pool shape and size, time of year, and any need to move buried utilities. 

When excavating for your pool, you might have to move existing utilities. You can expect to pay an additional $15 to $25 per linear foot to move gas lines. To move a septic system, it’ll cost an additional $2,000 to $20,000. A pool that is 10 feet by 12 feet averages $450 to excavate, and a 20-foot-by-40-foot pool averages $3,020.

In most areas, you will need a permit for excavation work, even for projects that only involve grading or yard leveling. Permit requirements depend on your local government and the scope of the project, but they are especially common for significant digging or work that could affect utilities or public property. These permits help protect the local topography and prevent drainage issues. An experienced excavation company will typically know whether permits are needed and can often handle the process of pulling and closing them for you. You can also verify permit requirements by contacting your local building department and describing your project.

Directional drilling is complex and requires training to use the advanced machinery. It can be challenging to monitor the position of the drill since there’s no direct line of sight. Directional drilling can also be more expensive with a cost of $10 to $30 per linear foot compared to $5 to $12 per linear foot for trenching. 

Septic drain lines (or leach lines) are typically buried between 18 and 36 inches underground, and should be at least 6 inches below the surface. These pipes are perforated and surrounded by filtering materials like sand or gravel. Burying the lines at this depth helps minimize odors and allows bacteria and other biological processes in the soil to effectively treat the wastewater. Burying lines too close to the surface can cause issues unless the soil is very compact and stable.

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.

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