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TRUSTED BY WINDHAM, NH HOMEOWNERS

  • Average homeowner rating star icon4.7
    Average homeowner rating
  • Verified reviews icon93
    Verified excavation services reviews

Find Excavation pros in Windham

Avatar for Dags Excavation
Dags Excavation
5.0(
16
)
Landscape - Minor Grading or ReslopingBuilding Site - Preparation and ClearingExcavation - Major Grading or Resloping+1 more

Serving Windham, NH and surrounding areas

Approved

Super Service Award Winner

In business since 2023

Free estimates

Offers commercial services

"Jared did an amazing job and was very thorough in his work. He prepared the site work for a retaining wall behind a newly installed pool and the attention to details in where he placed the drainage was perfect. The following week we had a tremendous amount of rain and it kept all that water well away from the pool. Took a lot of pride in the work he did for us and can not wait to work with him again on our next project!"
Response time7 hrs
24 neighbors recently requested a quote
Recommended by66%of homeowners
Avatar for Classic Creations
Classic Creations
5.0(
21
)
Excavation - Major Grading or ReslopingLandscape - Minor Grading or Resloping

Serving Windham, NH and surrounding areas

Approved

Super Service Award Winner

In business since 2021

Free estimates

Credit card accepted

"Chris came out when I was experiencing drainage issues and was able to assess the problem in real time. He provided me with options for my specific goals and completed the project in the time indicated. I will definitely use Classic Creations in the future and would highly recommend."
Response time10 hrs
Response rate94%
6 neighbors recently requested a quote
Avatar for Twin Timber Construction
Twin Timber Construction
5.0(
8
)
Building Site - Preparation and Clearing

Serving Windham, NH and surrounding areas

Approved

In business since 2025

Free estimates

Offers commercial services

"Michael built a single family home in Laconia and his work was thoughtful, tasteful, and overall very well done. He was very responsive and quick to make any requested adjustments. I highly recommend Michael and his team for any renovations, improvements or building a home from start to finish!"
Laconia Custom Home
Laconia Custom Home
Laconia Custom Home
7 neighbors recently requested a quote
O'Sullivan Construction and Property Management
4.3(
12
)
Excavation - Major Grading or ReslopingBuilding Site - Preparation and ClearingBuilding Site - Preparation and Clearing - For Business

Serving Windham, NH and surrounding areas

Approved

In business since 2016

Free estimates

Warranties offered

"Project - Complete the work of replace siding and windows from a job previous contractor left half way. They are extremely professional, friendly and reliable. They delivered everything and more they promised on time. We were remote. They kept us informed every step of the job. We had a very fussy tenant in the property. The crew had to go in to the house. We were concerned how it will work. The tenant was very happy with the work they did and how they cleaned up afterwards. We highly recommend them. We will ask them to come back and do our decks once the weather gets better."
Small back deck for grilling w french doors and sl
Before
Detail
Porch Swing and Fans
Complete

+70

Response time2 days
11 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for Leonard Landscaping
Leonard Landscaping
5.0(
12
)
Landscape - Minor Grading or Resloping

Serving Windham, NH and surrounding areas

Approved

In business since 2016

Free estimates

Emergency services offered

"Cooper and his friends did some spring clean up, fall clean up, and mowed every week or two for the 2025 season. He seemed knowledgeable and he worked diligently. The prior homeowner left the landscape a mess, but these folks did their best to make it look as nice as they could. They would even take extra effort to trim off some vegetation from my walkway and other areas occasionally for example. Since 2025, I believe his father took over although it seems Cooper is still helping out."
Lawn Mowing
Lawn Mowing
Flower Beds
Flower Beds
Flower Beds

+3

11 neighbors recently requested a quote
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Excavating questions, answered by experts

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.

A walk-behind trencher can cut through roots as long as they’re not too thick, making a project much easier than digging with a shovel and other hand tools. Assess your terrain and the number of trees in the surrounding area to determine if a walk-behind trencher will ease the job. Digging a trench by hand is much more time-consuming and labor-intensive. 

If you don’t wish to dig it out and convert it into a finished basement, you can still encapsulate your crawl space to protect it from damage for an average cost of $5,500. Finishing a crawl space beyond this isn’t really worthwhile, as the low ceilings mean you won’t be able to use the area as living space.

No, you typically cannot use metal detectors to find your sewer line. Most sewer lines are made of non-metallic materials such as PVC, clay, or cast iron, which are not detectable by standard metal detectors. Metal detectors are designed to locate metallic objects, so they won't be effective for identifying the path of a non-metallic sewer line. To locate your sewer line accurately, it's best to use other methods.

Sewer lines can be buried anywhere from 18 inches to 8 feet deep, with a common average depth between 18 and 30 inches. The exact depth depends on local factors like climate and soil type. In colder regions, pipes must be buried deeper (below the frost line) to prevent freezing, sometimes as deep as 8 feet. The digging depth can also impact the cost of sewer line replacement. To find the specific depth for your property, you can check the building plans for your system, which should be on file with your city or local sanitation department since permits are required for installation.

The Windham, NH homeowners’ guide to excavation services

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