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Top-Rated Septic tank and well pros in Northwood - Updated Nov 2026

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

Serving Northwood, 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

7 neighbors recently requested a quote
Recommended by52%of homeowners
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 Northwood, NH and surrounding areas

Approved

In business since 2007

Free estimates

Emergency services offered

"They came to inspect the Septic for home buying .They explain the system and how it works ,so I could understand , showing me the cleanout and D Box area . After this they coverd the two holes and left it like they found it. They both are Pro s and I will use them again"
Septic Inspection
Leach Field
Septic System Distribution Box
Septic Camera
Septic Pipe

+43

Response time6 hrs
Recommended by96%of homeowners
Avatar for Bemis Construction
Bemis Construction
4.6(
34
)
Septic System - Install or ReplaceSeptic System - Repair

Serving Northwood, NH and surrounding areas

Approved

In business since 2000

Free estimates

Customers say: Quick response

"Bemis Construction did an excellent job on my septic tank installation. Greg was on time for our initial meeting, gave me a quote that was reasonable and started the work on the day that he said he would start. As the work progressed, Greg kept me informed on the progress and answered all of my questions. The work was completed in a very efficient and professional manner. When I paid the final bill there were no surprises. The job cost what was quoted. Greg and his assistant were friendly and professional. You can trust these guys to do a great job and that your property will be treated with the upmost care and respect. Highly recommended!"
Ready for bed bottom inspection
Inviro Tube System
Closing Leachfield
1250 gal cement tank
Plastic Tank

+3

Response time1 day
Response rate90%
3 neighbors recently requested a quote
Granite State Sewer & Drain Cleaning Co
4.9(
13
)
Septic System - Install or ReplaceSeptic System - RepairSeptic System - Install or Replace - For Business+3 more

Serving Northwood, NH and surrounding areas

Approved

In business since 1981

Emergency services offered

Warranties offered

Granite State Sewer & Drain Cleaning Co is your go-to plumbing and drain cleaning expert in New Hampshire. With our extensive experience and top-notch service, we stand out from the competition. Contact us today for all your plumbing needs! Additional DBAs - Granite State Sewer Pumps, Granite State Sewer & Drain Cleaning Inc.

Additional Photos
Additional Photos
2 neighbors recently requested a quote
Recommended by91%of homeowners
Corriveau Construction Company
5.0(
6
)
Septic System - Install or ReplaceSeptic System - Repair

Serving Northwood, NH and surrounding areas

Approved

In business since 1972

Free estimates

Customers say: Quick response

"I could not be happier with the work performed by Bob and his team. They were extremely profession, delivered everything promised, were prompt and friendly! Our project turned out even better than we thought possible and the cost was extremely fair. I would highly recommend Corriveau Construction!!"
Response time1 day
6 neighbors recently requested a quote
Recommended by60%of homeowners
Avatar for Derry Plumbing & Heating
Derry Plumbing & Heating
3.7(
43
)
Well Pump - Repair or Service

Serving Northwood, NH and surrounding areas

Approved

In business since 1989

Free estimates

Emergency services offered

"When our existing water tank started to falter we knew we needed to upgrade. Derry Plumbing and Heating installed a phenomenal tankless system for our 3800+ sq foot home and we never had a reason to complain. Our energy costs went down and we always had hot water for our family of 5 and numerous guests."
Rinnai install
Designer shower
Drain line
Showroom shower/tub stall
Faucet fixtures

+2

Response time10 hrs
Response rate98%
9 neighbors recently requested a quote
Roadway Excavators Inc.
5.0(
2
)
Septic System - Install or ReplaceSeptic System - Install or Replace - For Business

Serving Northwood, 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
10 neighbors recently requested a quote
Recommended by100%of homeowners
Phil Brien Water Wells, LLC
4.8(
120
)
Well Pump - Install or ReplaceWell Pump - Repair or Service

Serving Northwood, NH and surrounding areas

In business since 1976

Free estimates

Warranties offered

"Prompt, courteous, professional, communicative. Dave replaced my well pump, pipe and wiring on the same day I called (a Saturday!). All at a very fair price, even though he had to wrestle with the rhododendron bush the well head was hidden by. All he needs is a cape."
 softeners
 conditioners and filters
 well pipe extentions
 well drilling
Water conditioners

+11

Recommended by99%of homeowners
Showing 1-10 of 46

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