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  • Average homeowner rating star icon4.9
    Average homeowner rating
  • Verified reviews icon20
    Verified excavation services reviews

Find Excavation pros in Troy

Avatar for Walshco LLC

Walshco LLC

5.00(
7
)
Approved Pro

Walshco LLC

5.00(
7
)
Approved Pro
Customers say: Quick response
1 years of experience
Free onsite estimate

WalshCo specializes in safe, reliable, and code-compliant oil tank, oil boiler, and oil furnace installations. We handle everything from old-tank removals and new system installs to full heating system upgrades. Our team focuses on clean workmanship, honest communication, and fast turnaround times—so your home stays warm, efficient, and protected. Whether it’s a brand-new oil tank, a high-efficiency boiler replacement, or a full furnace changeout, we bring expert service and New England craftsmanship to every job. Your safety, comfort, and satisfaction come first.

"I would recomend this company .They were reasonably priced and professional and courteous. "

Lory M on November 2025

WalshCo specializes in safe, reliable, and code-compliant oil tank, oil boiler, and oil furnace installations. We handle everything from old-tank removals and new system installs to full heating system upgrades. Our team focuses on clean workmanship, honest communication, and fast turnaround times—so your home stays warm, efficient, and protected. Whether it’s a brand-new oil tank, a high-efficiency boiler replacement, or a full furnace changeout, we bring expert service and New England craftsmanship to every job. Your safety, comfort, and satisfaction come first.

"I would recomend this company .They were reasonably priced and professional and courteous. "

Lory M on November 2025


Avatar for Lake Excavation, LLC

Lake Excavation, LLC

5.00(
4
)
Approved Pro

Lake Excavation, LLC

5.00(
4
)
Approved Pro
Customers say: Quick response
5 years of experience
Free onsite estimate

Lake Excavation LLC, is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers interests and make their concerns the basis of our business.

"Joe was great to work with. He did exactly what I asked for and went above and beyond with some material that was left over. I would definitely hire him again."

Cheryl D on July 2021

Lake Excavation LLC, is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers interests and make their concerns the basis of our business.

"Joe was great to work with. He did exactly what I asked for and went above and beyond with some material that was left over. I would definitely hire him again."

Cheryl D on July 2021


Avatar for ES Landscaping

ES Landscaping

5.00(
2
)
Approved Pro

ES Landscaping

5.00(
2
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
1 years of experience

We pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business! Book with us online or feel free to give us a call today!

"Good job."

Raj J on February 2025

We pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business! Book with us online or feel free to give us a call today!

"Good job."

Raj J on February 2025


Avatar for Chandler Construction

Chandler Construction

5.00(
1
)
Approved Pro

Chandler Construction

5.00(
1
)
Approved Pro
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
7 years of experience

We are a fully insured growing excavation company in southern NH. We specialize in house lots, additions, barn/garage slabs, drainage systems, yard reclamation, land reshaping, stumping, tree removal, utility trenching and house demo. 22 years of experience. we take pride in our work and try to satisfy the customer beyond expectation on every job.

"Was very pleased with the results great company"

james s on March 2022

We are a fully insured growing excavation company in southern NH. We specialize in house lots, additions, barn/garage slabs, drainage systems, yard reclamation, land reshaping, stumping, tree removal, utility trenching and house demo. 22 years of experience. we take pride in our work and try to satisfy the customer beyond expectation on every job.

"Was very pleased with the results great company"

james s on March 2022


Wilder Excavating

5.00(
1
)
Approved Pro

Wilder Excavating

5.00(
1
)
Approved Pro
19 years of experience
Free onsite estimate

We take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumer's needs. It is our mission to provide excellent workmanship and complete customer satisfaction from start to completion of a project. To understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job.

"Excellent job done."

carita g on March 2025

We take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumer's needs. It is our mission to provide excellent workmanship and complete customer satisfaction from start to completion of a project. To understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job.

"Excellent job done."

carita g on March 2025


KEY LANDSCAPE & IRRIGATION

5.00(
11
)

KEY LANDSCAPE & IRRIGATION

5.00(
11
)
Customers say: Quality work
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

Our primary service is Hardscaping. We are ICPI certified installers of concrete pavers. We build unique patios, water features, outdoor kitchens, pizza ovens, pergolas, and outdoor fireplaces and fire pits.

Our primary service is Hardscaping. We are ICPI certified installers of concrete pavers. We build unique patios, water features, outdoor kitchens, pizza ovens, pergolas, and outdoor fireplaces and fire pits.




6 employees. Additional DBA - ED Csenge & Son LLC, ED Csenge & Son LLC & Septic Manager.


S L Vonderhorst & Sons Inc

5.00(
5
)

S L Vonderhorst & Sons Inc

5.00(
5
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

S L Vonderhorst & Sons have been in business since 1988. We are General Contractors specializing in Garages, Barns, Additions, Porches, and Decks. We also do our own excavation and concrete work. Excavation includes driveway repairs, land clearing, and drainage work. We also have a roofing division which handles all aspects of roofing, Asphalt Shingles, Rubber, PVC, Slate and specializing in Metal Standing Seam.

"It went beautifully. They finished the job within 3 days! They cleaned up well after themselves and I was very pleased with their service. I have already rehired them for future projects."

S D on August 2019

S L Vonderhorst & Sons have been in business since 1988. We are General Contractors specializing in Garages, Barns, Additions, Porches, and Decks. We also do our own excavation and concrete work. Excavation includes driveway repairs, land clearing, and drainage work. We also have a roofing division which handles all aspects of roofing, Asphalt Shingles, Rubber, PVC, Slate and specializing in Metal Standing Seam.

"It went beautifully. They finished the job within 3 days! They cleaned up well after themselves and I was very pleased with their service. I have already rehired them for future projects."

S D on August 2019

Showing 1-10 of 45
Excavating questions, answered by experts

A crawl space can be as little as 42 inches below the grade of your house, but this is not always recommended in flood-prone areas. At a minimum, there must be at least 16 inches of clearance between the ground and the floor joists to access the space in an emergency.

Yes, you can excavate in the winter, but it might make the job harder. Frozen ground is harder to dig, and snow or ice can make the work site more hazardous. A contractor may need special equipment and techniques, such as ground-thawing methods, to break through frozen soil. Although winter excavation is possible, it may take longer and be more costly than excavating during warmer months.

The cost to dig a trench ranges from $400 to $1,200 per 100 linear feet, depending on the soil, depth, and width. Plan to spend $5 to $12 per linear foot for trenching (it’ll be on the higher end if you have rocky soil). Renting a trencher costs $100 to $250 per hour, depending on the type of trencher. 

A mini excavator can dig between 5 and 11 feet deep, depending on the type and size of the mini excavator. Mini hydraulic excavators are more powerful and can reach deeper into the earth, but electric models have a more limited range. Mini excavators over two tons in size are also more powerful and able to dig as deep as 11 feet.

How deep your septic system needs to be into the ground depends on several factors. In extremely cold environments, the tank needs to rest below the maximum frost line, which can be up to six or eight feet deep. The standard burying depth for most systems is between a few inches and four feet below ground level. Depth can also depend on the slope of the landscaping and other property variables. 

The Troy, NH 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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