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Find Excavation pros in Portsmouth

Avatar for Morton Excavation
Morton Excavation
4.9(
14
)
Excavation - Major Grading or ReslopingExcavation - Major Grading or Resloping - For Business

Serving Portsmouth, NH and surrounding areas

Approved

In business since 2016

Free estimates

Small jobs welcome

"All materials were removed and hauled off in a 30-ft dumpster. I was very satisfied with the demolition work ? everything was handled efficiently and professionally. Morton Excavation offers fair pricing and delivers quality results. I would definitely recommend them to anyone needing excavation or demolition services."
Gallery
Fire Hydrant install
8in ductile iron / fire hydrant install
Culvert Drainage
Culvert Drainage

+11

9 neighbors recently requested a quote
Recommended by58%of homeowners
Avatar for Carideo Services
Carideo Services
5.0(
36
)
Excavation - Major Grading or ReslopingExcavation - Major Grading or Resloping - For Business

Serving Portsmouth, NH and surrounding areas

Approved

Super Service Award Winner

In business since 2024

Free estimates

Emergency services offered

"Frank was great. Had him here to excavate for a shed and he did an excellent job. He was reasonably priced, knowledgeable, and friendly. Also dug conduit for electrical for it. Awesome guy and would love to work with him again."
Waterfront Excavating
Waterfront Excavating
Propane Tank Installment
Uunderground Propane tank
TJ MAXX Sign

+7

Response time6 hrs
Response rate98%
16 neighbors recently requested a quote
Avatar for NH Projects LLC
NH Projects LLC
5.0(
20
)
Building Site - Preparation and ClearingBuilding Site - Preparation and Clearing - For Business

Serving Portsmouth, NH and surrounding areas

Approved

In business since 2021

Free estimates

Customers say: Quick response

"NH Projects LLC Timely and meticulous . Showing great attention to detail. We had some water damage and the floors and some walls had to be replaced. We had an old electric heater that had to be disconnected and they placed a call to a electrican and he was here that day , we also needed a plumber and they were able to get a plumber here also the same day. Talk about a complete package. We were beyond pleased. 5 ***** stars no doubt. Paul & Christina from Nashua NH."
Our Work
Our Work
Our Work
Our Work
Our Work

+8

Response time5 hrs
Response rate87%
3 neighbors recently requested a quote
Avatar for James Donegan
James Donegan
4.7(
110
)
Water or Fuel Tank - Install or ReplaceWater or Fuel Tank - Remove

Serving Portsmouth, NH and surrounding areas

Approved

In business since 1988

Free estimates

Offers commercial services

Contact James Donegan for reliable oil tank installation, replacement, and oil-fired boiler services. With over 30 years of hands-on experience, James delivers safe, code-compliant work you can trust to be done right the first time. He has been recognized as a HomeAdvisor “Best Of” award winner and is Roth Oil Tank certified, ensuring high standards and expert-level service on every job. When it comes to your heating system, you’re in experienced hands.

10 neighbors recently requested a quote
Recommended by98%of homeowners
Ace's Excavation and Trucking
5.0(
2
)
Excavation - Major Grading or ReslopingExcavation - Major Grading or Resloping - For Business

Serving Portsmouth, NH and surrounding areas

Approved

In business since 2021

Free estimates

Credit card accepted

Our team is passionate & professional and committed to providing the absolute best experience for our clients. Our obsession over cost, schedule, safety, and quality ensures that projects are completed on time, within budget, and with impeccable attention to detail.\n\nFrom beginning to end of every project, our goal is to bring every aspect and detail of our client's concept to reality. We believe that strong communication, integrity, organization and honesty are the principles that have given us such a trusted reputation in a competitive industry. We are proud of the work that we do, and passionate about bringing visions to life. Give us a call today!

Recommended by100%of homeowners
Tseranos Construction, LLC
5.0(
4
)
Building Site - Preparation and ClearingExcavation - Major Grading or Resloping

Serving Portsmouth, NH and surrounding areas

Approved

In business since 2014

Credit card accepted

Customers say: True professional

"We hiredTseranos Construction to add an addition to our home, mudroom, garage with primary suite above. I would highly recommend this company, work was completed on time and we were very happy with quality of work. The owner was always available to answer questions and help us through the construction process."
Response time12 hrs
Recommended by100%of homeowners
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FAQs for excavation projects in Portsmouth, NH

Depth depends on the type of installation and the regulations in your area. Water supply lines typically require 24 inches, while drainage pipes are often installed 36 inches below grade. For most general projects, a depth of 12 to 24 inches and a width of about eight inches is sufficient. Sticking to these specs keeps your utilities safe, code-compliant, and easier to maintain later.

When you need to run utilities underground, you’ve got two main options: boring or trenching. Boring employs directional drilling to install utilities without exposing a continuous channel, while trenching requires excavating an open channel to place utilities securely. Directional drilling preserves landscape integrity, whereas trenching provides direct access for installation, albeit with greater surface disruption. This clear comparison helps you select the method best suited to your project.

Plan on 12 hours to dig 100 linear feet when the soil is cooperative and you can work continuously. This timeframe applies when work is performed consistently and methodically. Factors such as rocky soil, tree roots, obstructions, and frozen ground increase the overall duration, demanding extra planning and effort. Comprehensive operational planning ensures that every challenge is managed efficiently and the project is completed on schedule.

If you want your yard to look untouched, laying fresh sod over the trench is the quickest fix. New sod needs 30 to 45 days to root and blend with the rest of your lawn. A local sod pro can provide you with a firm timeline and tips to ensure the grass takes hold and maintains your curb appeal.

The Portsmouth, NH homeowners’ guide to excavation services

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