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TRUSTED BY BARNSTEAD, NH HOMEOWNERS

  • Average homeowner rating star icon4.7
    Average homeowner rating
  • Verified reviews icon51
    Verified septic tank services reviews

Top-Rated Septic tank pros in Barnstead - Updated Nov 2026

Avatar for Rooter-Man of Southern Maine
Rooter-Man of Southern Maine
4.3(
107
)
Septic Tank - Clean or Pump OutSeptic Tank - Clean or Pump Out - For Business

Serving Barnstead, NH and surrounding areas

In business since 1987

Free estimates

Emergency services offered

"They came out first to find the septic tank and then would have to come back with the pump truck to pump it. After utilizing the camera mechanism to locate the tank, we were advised that pumping wasn't really needed yet. They could easily have led us to believe it needed to be done, but they chose to be honest and save us the added cost. Honesty & integrity, i like that in a service provider!"
We saved this guy from a storm drain!
Slow tub? This could be why!
Extreme roots in sewer
That one was down there!
Tub clog

+17

Response time20 mins
Recommended by89%of homeowners
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 Barnstead, 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
Avatar for BMP Consultants
BMP Consultants
5.0(
6
)
Septic System - Install or ReplaceSeptic System - Install or Replace - For BusinessSeptic System - Repair+3 more

Serving Barnstead, NH and surrounding areas

Call us today for all your excavating needs! We handle start-to-finish septic system installations. We will work with any design team you may already have in place. We do not provide maintenance or pumping services.

Septic Tank Project
Recommended by100%of homeowners
A-1 Septic
4.0(
2
)
Septic System - Install or ReplaceSeptic Tank - Clean or Pump Out

Serving Barnstead, NH and surrounding areas

In business since 2007

A1 Septic is your premier septic service company for all of your design, installations, repairs and pumping. A1 Septic also has the capability to prepare your building site for construction. We will meet with you to determine your specific situation. With more than five years of experience in the septic system field we have the knowledge and expertise to assist you. From repairs to design for your specific needs we will prepare your site as well as engineer to full completion. We have very competitive and fair pricing so if you are currently having septic problems don't wait! Call us today so we can fix it!

Recommended by100%of homeowners
Avatar for American Home Shield – Home Warranty
American Home Shield – Home Warranty
3.5(
5,689
)
Septic System - Install or ReplaceSeptic System - Install or Replace - For BusinessSeptic System - Repair+3 more

Serving Barnstead, NH and surrounding areas

In business since 1971

Credit card accepted

"The technician emptied the freezer, which was in the basement, to work on the part that needed repair. Then he neglected to put anything back into the freezer, including a turkey I had bought for Christmas and a rack of ribs. Two days after he left, I went out of town for two weeks. The turkey actually exploded and spewed its liquid all over everything, which had to be discarded. I let AHS know and they couldn't even bother to call me or follow up on this. I'm considering not renewing my contract with them because of the quality (or lack thereof) of many of the providers they send."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+2

Recommended by65%of homeowners
Purpora and Sons Excavation and Septic -
3.4(
4
)
Septic System - Install or ReplaceSeptic System - Install or Replace - For BusinessSeptic System - Repair+1 more

Serving Barnstead, NH and surrounding areas

In business since 1998

Free estimates

We are dedicated to providing our clients with the very best in excavation and building site services. We specialize in residential and commercial services and take pride in the attention to detail put into each of the projects we are involved with. We are known for our quality work and the integrity of our business. We look forward to building long term relationships with our clients and guarantee your satisfaction.

Response time1 day
Recommended by50%of homeowners
Avatar for BMP Consultants, LLC
BMP Consultants, LLC
5.0(
1
)
Septic System - Install or ReplaceSeptic System - Install or Replace - For Business

Serving Barnstead, NH and surrounding areas

In business since 2020

Free estimates

Credit card accepted

Customer satisfaction is what determines our success, which is why we take a hands-on approach. When interacting with BMP CONSULTANTS LLC. you'll notice that we're particularly focused on the principles of quality workmanship, timely completion, competitive pricing and integrity in all our business dealings. We combine knowledge and research with our extensive practical experience to ensure a specialized approach for your project needs. Contact us today for a fair and accurate estimate of your project. We look forward to adding you to our long and growing list of happy customers you'll notice that we're particularly focused on the principles of quality workmanship, timely completion, competitive pricing and integrity in all our business dealings. We combine knowledge and research with our extensive practical experience to ensure a specialized approach for your project needs. Contact us today for a fair and accurate estimate of your project.

Response time5 hrs
Recommended by100%of homeowners
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Septic Tanks FAQs, answered by experts

The pressure in a well pressure tank should be set 2 to 3 PSI below the pump's cut-on pressure. The cut-on pressure is the lower number in the pressure setting (e.g., the '30' in 30/50 PSI) and is the point at which the pump starts. The cut-out pressure is the higher number, where the pump stops.

For example:

  • If your pressure switch is set to 30/50 PSI, the tank pressure should be 27-28 PSI.

  • If your pressure switch is set to 40/60 PSI, the tank pressure should be 38 PSI.

Common pressure settings for household applications include 20/40, 30/50, and 40/60 PSI. The difference between the cut-on and cut-out pressure is typically 20 PSI.

The smallest septic system available for purchase typically includes a 750-gallon tank. However, the smallest size you can legally install is determined by local regulations, and many areas require a minimum capacity of 1,000 gallons. The cost to install a small septic system generally ranges from $2,910 to $13,900. Before proceeding, it is essential to check with your local health department or consult a local septic professional to confirm the minimum legal requirements in your area.

The dimensions of a 500-gallon concrete septic tank can vary from manufacturer to manufacturer, but the tank is large enough to handle the wastewater of a small home with up to one bedroom. Keep in mind that some states have a minimum septic tank size, and this often starts at 750 gallons. A 500-gallon septic tank may be too small to meet local regulations.

Regular checks of pressure tanks, testing water quality, and cleaning intake screens.

While a traditional septic tank requires a leach field for wastewater disposal, it is possible to have a septic system without one. Some alternative systems, which are often used when there isn't enough space for a full-size leach field, include mound systems or sand filtration systems. In a conventional setup, the leach field is essential because it's where the wastewater goes after leaving the tank.

The Barnstead, NH homeowners’ guide to septic tank services

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