Get matched with top excavation pros in Mill Valley, CA

Q: Where do I take the boulder once it’s removed?

• <div><p>After you successfully remove your boulder, you have a few options for what to do to get rid of it. You can rent a dumpster if your yard has many boulders or if you&rsquo;re planning a larger project. You can even save the boulder and reuse it elsewhere on your property to save on <a href="https://www.angi.com/articles/how-much-does-landscaping-cost.htm">landscaping costs</a>. A few ideas include using the boulder as a natural, abstract statue, breaking it into smaller pieces to line your garden bed, or offering it to a landscaping company that could reuse it for another project.</p></div>

Q: How to find a broken sprinkler pipe underground?

• <div><p>If you have a broken sprinkler pipe underground, there will be some signs you can easily spot to locate it and take action. These include leaks, water spouts, flooding, consistently damp areas on your lawn, low water pressure, and grass around the sprinkler head that&rsquo;s taller and darker than anywhere else in the yard. </p><p>If there are no obvious signs of a broken pipe, you can use tools such as water leak mics, leak noise loggers, audio devices that record leaks, and acoustic testing links. </p><p>Broken pipes can lead to uneven watering, plant damage, and higher utility bills. The longer you wait to fix them the more the repair cost may be.</p></div>

Q: How long does excavation take?

• <div><p>There are several different factors that influence how long it takes to excavate. For a foundation, it could take anywhere from three days to three weeks. It can take even longer if you face weather-related delays or an inaccessible site that&rsquo;s riddled with boulders and rough terrain. It may also take longer if you have clay soil, which is more difficult to dig.</p></div>

Q: How close to the gas line can I dig?

• <div><p>Call 811 to locate and mark the gas lines at least three days before digging. In many areas, you can dig within 18 inches of the lines, though in some locations, the distance may be further. Check local regulations, as you may need a utility company representative onsite when digging. Document your calls to 811 and precautions taken to avoid gas lines. A homeowner can be held <a href="https://www.angi.com/articles/homeowner-liable-damage-gas-line-contractor.htm">liable for hitting a gas line</a> in some cases, but contacting the proper authorities and following all guidelines can offer protection.</p></div>

Q: Does fire blight stay in the soil?

• <div><p>No, fire blight does not survive free in the soil but instead is carried through insects, animals, rain, or wind during the spring. Keep in mind that it can also spread on tools, which is why you should always disinfect them in between cuts. </p></div>

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Verified Reviews for Excavation pros in Mill Valley, CA

*The Angi rating for Excavation companies in Mill Valley, CA is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Excavation needs.

*The HomeAdvisor rating for Excavation companies in Mill Valley, CA is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Excavation needs.

Last update on January 15, 2026

Reviewed in September 2025
Great job in designing our beautiful deck, stairs, back patio, planter boxes and pad for hot tub.
IVP Design Studio
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Reviewed in December 2024
These guys are the best. Did a partial home repipe of both the water and drain pipes. Other plumbers tried to upsell us by replacing newer pipes and the water heater. Ray and Alex just did the repiping that was necessary. Excellent communication, friendly and on time. Even worked in tough,...
Ray's Rescue Plumbing
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Reviewed in December 2023
Fast, knowledgeable serviceÃ Â¢Ã Â Ã Â especially in an emergency!
ARS / Rescue Rooter Bay East Area
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Reviewed in June 2023
Exceptional service! They were prompt, professional and polite. They carefully packed the items that were to be moved and delivered them to their destination safely. They also were courteous in that they texted me to alert me when they were coming and then again before arriving at the...
MovingAnywhere.com, A Man With a Van & More!, Inc.
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Reviewed in September 2021
Rollinâ Along provided me with rapid response to my repair need, detailed information, and helped me to understand how my chairlift works. I really appreciate being treated like an intelligent person who understands whatâ s going on. I highly recommend this business!!
Rollin' Along
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Reviewed in May 2021
They did a superb job, attention to detail, knowledgeable about they were doing, they made every effort to do the job well and to please.
Fresh Coat of California, Inc.
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Reviewed in November 2013
No problem, came on time did the work, left. Was clean and quiet. Just as it should be! Note that I had a $25 Angie's List Coupon for this company which was not honored. The coupon states: "$25 off Heating (or plumbing) repaid only. The project was to repair my old and leaky system, which...
Ongaro & Sons
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Reviewed in August 2010
They were good, professional and came on time to do the job.
Bonney Plumbing Heating Air & Rooter Service
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Reviewed in May 2010
Because of the very long rainy season this year, it took a long time before they could start. We initially talked and I got a proposal in February. Once they stated work, it took less than a week and a half. Jack was very professional and flexible (e.g., many things had to be changed because...
ABC Landscaping Inc
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