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TRUSTED BY ALTADENA, CA HOMEOWNERS

  • Average homeowner rating star icon4.6
    Average homeowner rating
  • Verified reviews icon17
    Verified excavation services reviews

Top-Rated Excavation pros in Altadena - Updated Nov 2026

Avatar for Bronco Demolition, LLC
Bronco Demolition, LLC
4.9(
89
)
Building Site - Preparation and ClearingBuilding Site - Preparation and Clearing - For Business

Serving Altadena, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2020

Free estimates

Small jobs welcome

"Quick response with quote, which was really reasonable. They were able to complete the project right away. I had them remove glued down wood flooring, which is really difficult. A couple hours after they arrived the area was cleaned and ready for install. Will hire again for other projects."
Pool Demolition
Pool Demolition
Pool Demolition - Progress Photo
Office
Space Fully Demoed

+4

Response time8 hrs
Response rate96%
11 neighbors recently requested a quote
Avatar for Rainforestla, Inc.
Rainforestla, Inc.
4.7(
37
)
Landscape - Minor Grading or Resloping

Serving Altadena, CA and surrounding areas

Approved

In business since 2009

Free estimates

Credit card accepted

"We hired Rainforest LA to install our front yard landscaping. The design had been done by another company and Yosi worked with the designer and made our yard beautiful. Yosi was professional and responded timely to my texts. The prices were very reasonable and the quality of work was exceptional. We will use this company again."
wood retaining wall
steps
steps
steps
steps

+59

Response time3 days
Recommended by96%of homeowners
KP Earthwork & Paving
3.6(
14
)
Building Site - Preparation and ClearingBuilding Site - Preparation and Clearing - For BusinessExcavation - Major Grading or Resloping+1 more

Serving Altadena, CA and surrounding areas

Approved

In business since 2009

Free estimates

Emergency services offered

"Ken is very knowledgeable and professional. My backyard was not draining well in the last rain after a garage extension. He graded the soil and built a paving stone walkway. When I couldn't find anyone to put sods on the soil, he took on the job and did a great job. I am very happy with the work."
 parking lot during
 parking lot after
 swimming pool
 drainage trench
Recommended by100%of homeowners
J NEW ERA ENGINEERING INC
New to Angi
Excavation - Major Grading or Resloping

Serving Altadena, CA and surrounding areas

Approved

In business since 2004

Free estimates

J NEW ERA ENGINEERING INC \n \nHere at company, 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 a variety of quality home improvement services. You will find us to be competitively priced with close attention to the details of each and every project that we are involved with. We look forward to building lasting relationships and guarantee your satisfaction!

Response time2 hrs
Avatar for Regal Construction & Remodeling Inc
Regal Construction & Remodeling Inc
4.5(
364
)
Building Site - Preparation and ClearingBuilding Site - Preparation and Clearing - For BusinessExcavation - Major Grading or Resloping+2 more

Serving Altadena, CA and surrounding areas

In business since 2008

Free estimates

"My husband and I have experienced six contractors since 1998 for remodeling and landscaping of our homes. Being matched with a reliable, competent and civilized contractor seems to require more than online research; Rather, you need a luck equivalent to the chance of jackpot in Vegas. For our current home, we planned the remodeling of the entire downstairs which included kitchen, family room, living room, powder room, laundry room, gym and bathroom. After interviewing several contractors very, very carefully (since we had a contractor from h*** in 2016), we decided to work with The Regal; Sean and Shaul. They were very precise with the budget and timeline while explaining each phase of work in detail; nothing too extravagant or too cheap to achieve. We started in March 2020 and finished the project by June as they promised. Most importantly within the budget and timeline plus some extra improvement of the house thanks to their recommendation that eventually saved us a lot of energy and money. I am not saying that the entire experience was as smooth and rosy as it may sound like; There were some moments of tension and questions on the way like any remodeling projects would create. But all within my realistic expectations and any issues were quickly resolved with the sincerity and efforts of Sean and Shaul. They are such civilized professionals that communication was the best part of the whole project (very rare in the field of construction). My husband and I are professionals so dealing with people who are deceiving or irrational has been the most challenging task along with our aging brains. The project manager Shaul was a god sent and he made the whole experience quite comfortable and sane. Also, all their workers were polite, clean and hard-working (again very rare). I have waited to write a review more than a year because I wanted to see how their warranty service would work out. It was beyond my picky expectations! They are highly responsible for their job and extremely prompt, sincere and efficient with any issues related to their work (they don't seem to care about expenses to make sure all is in a great working condition). We are done with our home renovation but we will definitely recommend The Regal to our children or friends with great confidence. It was a good match after all! :)"
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+163

Recommended by84%of homeowners
Avatar for BG Construction & Remodeling Inc
BG Construction & Remodeling Inc
4.9(
51
)
Building Site - Preparation and ClearingBuilding Site - Preparation and Clearing - For BusinessExcavation - Major Grading or Resloping+2 more

Serving Altadena, CA and surrounding areas

In business since 1985

Free estimates

Emergency services offered

"Everything went very well. This is the reason we have hired BG Construction several times over the past few years & very recently to help us with new projects. Always fine quality work, wonderful trustworthy workers, (same people work for this company for years), responsive to all questions & concerns. On time daily & in concluding the job."
Additional Photos
Additional Photos
Additional Photos
Kitchens 1
Kitchens 2

+19

Recommended by100%of homeowners
Avatar for SPINO EXCAVATING INC
SPINO EXCAVATING INC
5.0(
6
)
Building Site - Preparation and ClearingBuilding Site - Preparation and Clearing - For BusinessExcavation - Major Grading or Resloping+1 more

Serving Altadena, CA and surrounding areas

In business since 2016

Free estimates

Credit card accepted

"Spino Excavating Inc is a very competent contruction company. Their honesty and integrity is known in the Southern California industry. They work patiently and energetically with their project owners, architects, engineers, and of course us building inspectors. They have never failed to impress me on each project large or small. -- RAM-ESI"
Response time10 mins
Recommended by100%of homeowners
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Excavating FAQs, answered by experts

Errors in site preparation can lead to structural failures or appear costly midway. Professionals ensure detailed, reliable home base development layouts.

The time it takes to build a pool—and dig out the area—varies based on the pool size and type. A professional excavator will take between four and eight hours to dig a pool. The process will take longer if they encounter large boulders or tree roots. Keep in mind that this is a small part of the process in the long run. You will need between eight and 12 weeks to build a pool from start to finish, including the time to apply for permits.

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.

Drilled wells have a pipe sticking up that’s covered in a plastic or metal casing. On the other hand, a dug well will look like a big hole in the ground and is more similar to what you’d see in a fantasy or Western movie. If you want to be sure, contact the city for documentation on your property’s construction and excavation history. 

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.

The Altadena, CA homeowners’ guide to excavation services

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