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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 rate96%
22 neighbors recently requested a quote
Avatar for In & Out Plumbing & Construction Inc
In & Out Plumbing & Construction Inc
4.2(
78
)

Serving Colma, CA and surrounding areas

Approved

In business since 1998

Free estimates

Emergency services offered

"Very professional. Arrived when promised, and assessed the work needed. Their estimate was not within my budget. I was able to find a handyperson to take care of this, instead."
San Francisco Sewer Line
Floor Drain
San Francisco Sewer Line
Floor Drain
San Francisco Sewer Line

+27

Response time1 day
Response rate99%
27 neighbors recently requested a quote
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
4.4(
5
)

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
Response rate90%
53 neighbors recently requested a quote
Avatar for Vitoria Pavers Contractor Inc
Vitoria Pavers Contractor Inc
5.0(
10
)

Serving Colma, CA and surrounding areas

In business since 1993

Free estimates

Emergency services offered

"The job went great I highly recommend them All of their Employees Are very nice and hard workers no slackers Kept our property clean when they left every day They even laid big tarps underneath their trucks to keep the streets clean Marco would come by every day to check on things Louis the man that laid the pavers He did a great job He didn’t just throw down any paver he made sure the shapes and colors were just right like an artist he takes pride in his work We are very happy with our new backyard would highly recommend them."
Landscaping Project
Landscaping Project
Landscaping Project
Landscaping Project
Additional Photos

+63

Recommended by100%of homeowners
Vargas Landscaping
4.7(
48
)

Serving Colma, CA and surrounding areas

In business since 1999

Free estimates

Emergency services offered

"He was available by phone, and was flexible in scheduling meetings which is great. He was professional, and seemed quite knowledgable. In the end, I didn't use Nato's services because his quote was twice as much as the other contractor I was considering. Perhaps his prices may be more competitive in other services he offers. Either way, working with this company was a pleasant experience."
Recommended by95%of homeowners
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Excavating questions, answered by experts

Your contractor should handle dust control during the project. It's best to speak with your contractor beforehand to check if they plan to cover your furniture, protect your vents, or use fans to redirect dust. Eliminating drywall dust is a particularly large challenge during construction, so always take this into account during your planning phase.

A joint utility trench, or joint trench, is a long, buried ditch on a property that contains two or more utility lines rather than running the lines in multiple trenches. Some utilities, like gas and electric or electric and communication lines, are better suited to joint trenching, while others, like water and sewer, are not allowed to be in the same trench.

A perc test can take anywhere from one to eight hours to complete. The total time depends on factors like the amount of excavation required, the depth and width of the holes, and whether multiple test holes are needed. For a single hole, the process of filling it with water and monitoring the drainage rate usually takes less than an hour. Professionals can often complete the entire test in a single day. While it's possible to get results the same day, some companies may take a few days to provide the official report.

Yes, an excavation company is the best option for land grading and yard leveling. General landscapers might be able to tackle these projects, but an excavation company will do a better job because they’re used to operating the necessary heavy machinery. Landscapers might opt to do the work manually, which takes much longer and could cost you more in labor fees. Finally, excavation companies will understand local regulations and know when you need permits to legalize the work, while a landscaper might not.

Generally, a trenchless sewer line is worth the cost. If your old system needs replacement, trenchless sewer repair or replacement can save you thousands on excavation costs. Every homeowner’s situation is different, but this method is definitely worth it in a lot of cases.

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.