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TRUSTED BY WINDHAM, NH HOMEOWNERS

  • Average homeowner rating star icon4.6
    Average homeowner rating
  • Verified reviews icon207
    Verified septic tank services reviews

Verified Reviews for Septic Tank Service pros in Windham, NH

*The Angi rating for Septic Tank Service companies in Windham, NH is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Septic Tank Service needs.

*The HomeAdvisor rating for Septic Tank Service companies in Windham, NH is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Septic Tank Service needs.

Last update on February 04, 2026

Find Septic tank pros in Windham

Avatar for Select Excavation & Landscaping, LLC
Select Excavation & Landscaping, LLC
5.0(
18
)
Septic Tank - Clean or Pump OutSeptic System - Install or ReplaceSeptic System - Repair+3 more

Serving Windham, NH and surrounding areas

Approved

In business since 2008

Free estimates

Emergency services offered

"Shane Flagg and his partner Doug (knowledgable retiree) are highly professional. Their work is efficient and complete. Erica Dole (in the office) scheduled the date/time quickly. I value the company for their work and their individual friendliness, and will welcome them back to add a 'riser' to the tank. Thanks to you all. Alan Baker"
Septic Pumping
Connecting Water Services
Connecting Water Services
Septic Pumping
Leach field

+19

5 neighbors recently requested a quote
Recommended by52%of homeowners
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Avatar for Septic Designs of NH, LLC
Septic Designs of NH, LLC
4.5(
29
)
Septic System - Install or ReplaceSeptic System - Install or Replace - For BusinessSeptic System - Repair+1 more

Serving Windham, NH and surrounding areas

Approved

In business since 2007

Free estimates

Emergency services offered

"I called every plumber around and Septic Design of NH had the best price to put a camera down the sewer line. Problem was located in no time."
Septic Inspection
Leach Field
Septic System Distribution Box
Septic Camera
Septic Pipe

+43

Response time6 hrs
Recommended by96%of homeowners
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Tom Howe Septic Systems and Excavation
4.9(
8
)
Septic System - RepairSeptic System - Install or Replace

Serving Windham, NH and surrounding areas

Approved

In business since 1968

Free estimates

Customers say: Quick response

"These guys are the nicest men very thorough with information and honestly one of the best prices I got for my septic I would highly recommend give them Tom a call. Very knowledgeable smart people"
Response time2 days
2 neighbors recently requested a quote
Recommended by85%of homeowners
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Avatar for Innovative Septic Solutions
Innovative Septic Solutions
4.3(
35
)
Septic System - Install or ReplaceSeptic System - RepairSeptic System - Install or Replace - For Business+1 more

Serving Windham, NH and surrounding areas

Approved

Super Service Award Winner

In business since 1985

Free estimates

Emergency services offered

"Innovative Septic Solutions is very professional and efficient. Bob's crew installed our new septic system in three days. Excellent job, thanks!"
Response time2 days
13 neighbors recently requested a quote
Recommended by75%of homeowners
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Roadway Excavators Inc.
5.0(
2
)
Septic System - Install or ReplaceSeptic System - Install or Replace - For Business

Serving Windham, NH and surrounding areas

Approved

In business since 1996

Free estimates

Offers commercial services

Roadway Excavators Inc. 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

Response time6 hrs
11 neighbors recently requested a quote
Recommended by100%of homeowners
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Avatar for Sewer Surgeons LLC
Sewer Surgeons LLC
5.0(
9
)
Septic System - Install or ReplaceSeptic System - Install or Replace - For BusinessSeptic System - Repair+3 more

Serving Windham, NH and surrounding areas

In business since 2013

Free estimates

Emergency services offered

"I had a drain clog that was becoming a real headache, and Sewer Surgeons took care of it quickly and professionally. The technician was friendly, showed up on time, and explained what was going on without making it complicated. The price was fair, and there were no surprises. The whole process was made easy and overall I would recommend them to anybody in a heart beat."
Septic Repairs
Septic Repairs
Septic Repairs
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Showing 1-10 of 32
Septic Tanks questions, answered by experts

You may want to increase the size of your leach field, for instance, if you add on to your home or install more bathrooms in your house. You can make your leach field larger by installing more pipes or expanding the area of the field itself. Improving the soil quality in the drain field can also make it more effective without increasing the area.

Some of the signs that could mean your water is contaminated, such as cloudiness or bubbliness, could also be non-problems that don’t affect your water’s potability. However, if your water smells or tastes strange, it’s a good idea to stop drinking it and test it immediately. If your well water is contaminated, the best way to discover that is to test it.

Choosing a reliable septic tank company starts by finding an experienced company in your area with positive customer reviews online. You can also use the following tips to help ensure you have a positive experience:

  • Choose a company that is licensed and fully insured

  • Ask the company for customer references

  • Ask if the company provides any guarantee for the repair

  • Determine the provider’s level of experience

With proper maintenance, most types of septic systems—including mound, evapotranspiration, and constructed wetland systems—can last up to 40 years. To keep your system running as long as possible, follow basic septic tank upkeep guidelines, like pumping your septic tank every three to five years and only flushing human waste and toilet paper.

The size of your septic tank plays a role in determining the proper size of the drain or leach field. As a general rule, you should have 1 square foot of drain field size per gallon of septic tank capacity. However, you could install a leach field that’s as much as 2.5 square feet per gallon of septic tank capacity. Most professionals determine the right septic tank size and drain field size by the number of bedrooms in the house. A three-bedroom house needs a minimum 1,000-gallon septic tank, for example.

The Windham, NH homeowners’ guide to septic tank services

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

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