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Top-Rated Excavation pros in Lyme - Updated Nov 2026

Keith Clifford Contractor
5.0(
4
)
Excavation - Major Grading or ReslopingBuilding Site - Preparation and ClearingBuilding Site - Preparation and Clearing - For Business+1 more

Serving Lyme, NH and surrounding areas

Approved

In business since 1985

Free estimates

Customers say: Quick response

"Keith is a real jack of all trades; I've hired him for many projects in addition to the clearing and grading that I needed- super quality work and very responsive; always returns calls, easy to work with and recommended for sure."
Quality Work
Prepping
Work with Integrity
State of The Art Equipment
Reliable and Flexible

+12

Response time8 hrs
3 neighbors recently requested a quote
Recommended by66%of homeowners
Avatar for Kaynicki Janitorial
Kaynicki Janitorial
4.7(
13
)
Building Site - Preparation and Clearing

Serving Lyme, NH and surrounding areas

Approved

In business since 1998

Free estimates

Offers commercial services

Serving our community since 1998, Kaynicki Janitorial delivers dependable, high-quality cleaning and site services. We specialize in everything from commercial janitorial maintenance and post-construction cleaning to light demolition, building site preparation, and junk/debris removal. With over two decades of hands-on experience, we get the job done right the first time. Contact us today for a estimate!

Photos
1 neighbors recently requested a quote
Recommended by81%of homeowners
Kaynicki Janitorial
4.7(
13
)
Building Site - Preparation and Clearing

Serving Lyme, NH and surrounding areas

Approved

In business since 1998

Free estimates

Offers commercial services

"I hired Andy and his crew to clean my windows this spring and I could not be happier. They did an outstanding job, my wife and I are extremely pleased. Great value for the service provided. I definitely be asking them to come back again when I need their services. I would highly recommend Andy and his company for their cleaning services. Very courteous and professional. Sincerley, Kim Doubleday Canterbury, NH"
Response time2 days
16 neighbors recently requested a quote
Recommended by81%of homeowners
Avatar for Waterscapes of New England
Waterscapes of New England
3.9(
26
)
Excavation - Major Grading or ReslopingExcavation - Major Grading or Resloping - For Business

Serving Lyme, NH and surrounding areas

Approved

In business since 1985

Free estimates

Warranties offered

"Overall, went well although project from start to finish took a long time (not entirely due to Waterscapes).  I would have liked if they could have coordinated the railings as once the stairs were done it took another 6 weeks to get new railings installed.
Bottom line, stairs and walkway look great."
Additional Photos
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+9

2 neighbors recently requested a quote
Recommended by85%of homeowners
C&L Cass Construction
2.8(
2
)
Building Site - Preparation and ClearingExcavation - Major Grading or Resloping

Serving Lyme, NH and surrounding areas

Approved

Small jobs welcome

Offers commercial services

Customers say: Quick response

"Chris worked with my schedule to get a foundation in and also fixed up my driveways, made great suggestions. He showed up and completed the work exactly as he promised and kept the site tidy all through the project. A pleasure to work with!"
8 neighbors recently requested a quote
Recommended by100%of homeowners
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Excavating FAQs, answered by experts

Preparation involves site assessment, clearing debris, grading surfaces, and compacting soil to support stable construction.

There is no standard depth for burying a septic tank; they are typically buried anywhere from 4 inches to 4 feet underground. The final depth depends on several factors, including the depth of your main sewer line, the height of the bedrock, soil type, local regulations, and the property's landscape. If you plan to grow grass or plants over the tank, a depth of at least 4 to 6 inches is recommended. Deeper tanks can be more difficult to locate, but a septic professional can help find it for you.

If you don’t have a crawl space but have a partial basement you want to make deeper, you can expect to spend a little less—between $40,000 and $90,000 on average. However, if you’re not adding new finished square footage, you won’t see much in the way of ROI.

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.

Yes, you can install a trench drain if you already have concrete in your yard or garden. While it can complicate some aspects of the job and slightly run up the cost, it is doable. Residential trench drains can be easily retrofitted to outdoor areas with concrete without having to remove excessive amounts of your patio, pool area, or decorative walkways.

The Lyme, NH homeowners’ guide to excavation services

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