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  • Average homeowner rating star icon4.4
    Average homeowner rating
  • Verified reviews icon14
    Verified drain pipe installations reviews

Top-Rated Drain pipe installers in Amherst - Updated Nov 2026

Avatar for Grand Voyage Plumbing and Heating
Grand Voyage Plumbing and Heating
5.0(
61
)
Sump Pump or Interior Foundation Drains - Install

Serving Amherst, NH and surrounding areas

Approved

In business since 2017

Emergency services offered

Warranties offered

Grand Voyage Plumbing and Heating 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. We have 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.

Water Heater
Water Heater
4th of July Savings
Gas Furnace
GE Air Conditioner

+1

5 neighbors recently requested a quote
Recommended by84%of homeowners
Avatar for A Really Good Plumber
A Really Good Plumber
4.5(
46
)
Sump Pump or Interior Foundation Drains - Install

Serving Amherst, NH and surrounding areas

Approved

In business since 2007

Emergency services offered

Credit card accepted

"He was very knowledgeable and very friendly and his prices are very reasonable compared to other contractors and he did a great job installing wyn well tank I would definitely recommend him for any repairs"
Additional Photos
Additional Photos
3 neighbors recently requested a quote
Recommended by90%of homeowners
Avatar for Sila Heating, Cooling, Plumbing and Electrical
Sila Heating, Cooling, Plumbing and Electrical
4.5(
5,404
)
Sump Pump or Interior Foundation Drains - Install

Serving Amherst, NH and surrounding areas

Approved

In business since 1989

Free estimates

Emergency services offered

Live Your Most Comfortable Life with a Company You Trust. \nWe offer Same Day Service and Next Day Installation! \n \nSila has been the center of delighting homeowners since 1989, with our team of engineers, certified technicians, and system designers that are proud to deliver the highest level of expertise in the HVAC industry. Whether it?s a repair, replacement, installation, or service, we have an unwavering commitment to keeping you and your family comfortable and safe ? season after season. \nWe guarantee satisfaction and are proud to have earned over 7,000 ?A? ratings on Angie?s List and its prestigious Super Service Award!

Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+6

46 neighbors recently requested a quote
Recommended by89%of homeowners
Avatar for Derry Plumbing & Heating
Derry Plumbing & Heating
3.7(
43
)
Basement Drainage Channels - InstallSump Pump or Interior Foundation Drains - Install

Serving Amherst, NH and surrounding areas

Approved

In business since 1989

Free estimates

Emergency services offered

"Been with another company for many years last time I call them for price to replace expansion tanks they gave price 859.00 thatà ¢à  à  s last time heard lot about Derry plumbing called Dave and they sent out a technician his name was Tyler very professional look over my unit told me had other issues with my system showing all possible that system was old he would only be taking my money to install the expansion tank and the unit is old and if fails this winter parts will be very hard to get note the unit been in house for 30 years have served my good so Tyler gave est that fair price to replace Dave gave me some options and was very professional so I set up appointment to have replaced thanks to Derry plumbing à ¢à ­à  à ¯à ¸à  à ¢à ­à  à ¯à ¸à  à ¢à ­à  à ¯à ¸à  à ¢à ­à  à ¯à ¸à  à ¢à ­à  à ¯à ¸à  à ¢à ­à  à ¯à ¸à  à ¢à ­à  à ¯à ¸à  à ¢à ­à  à ¯à ¸à  à ¢à ­à  à ¯à ¸à  à ¢à ­à  à ¯à ¸à  Thank you Paul Hickey Derry New Hampshire"
Rinnai install
Designer shower
Drain line
Showroom shower/tub stall
Faucet fixtures

+2

Response time10 hrs
Response rate98%
9 neighbors recently requested a quote
Avatar for Groundworks
Groundworks
4.6(
26
)
Sump Pump or Interior Foundation Drains - InstallBasement Drainage Channels - Install

Serving Amherst, NH and surrounding areas

Approved (Corporate)

In business since 1996

Free estimates

Warranties offered

"Just purchased home,and second day in heavy rain caused pump to fail. Called andin less than 3 hours I had them at my house with a replacement pump and installed. They stayed till basement was cleared and said they would return in the next day to finish job. Showed up on time as scheduled and finished beyond my exspectations.i cannot say enough about this company. Truly deliver what they promise. From sales staff to the installer. Also a courtesy call back to make sure I was satisfied. This is the go to company for any of your basement needs."
Foundation
Foundation
Foundation
Basement
Basement

+16

Response time12 hrs
197 neighbors recently requested a quote
Recommended by56%of homeowners
Tom Howe Septic Systems and Excavation
4.9(
8
)
Foundation Drainage - Install or Replace

Serving Amherst, NH and surrounding areas

Approved

In business since 1968

Free estimates

Customers say: Quick response

"We hired Tom to connect us to city sewer after the septic system failed on the house we purchased. He came highly recommended and did a great job, pulling permits, calling dig safe, getting the inspections, etc. He was fantastic to work with and his rates are very competitive. Sine the initial project we had him levels our back yard and spread and seed 60 yards of loam. Can't say enough about this company."
Response time2 days
3 neighbors recently requested a quote
Recommended by85%of homeowners
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Drain Pipe Installation FAQs, answered by experts

There are several common signs that your main sewer line may be clogged. Key indicators include multiple fixtures in your home draining slowly, gurgling sounds coming from drains or toilets, and water backing up into showers, sinks, or toilets. You might also notice water backing up from the plumbing system's drain cleanout, water in your basement drain, or unexplained wet patches on your lawn. Foul odors, such as the smell of raw sewage or rotten eggs, are another common symptom. The most reliable way to confirm a main sewer line clog is to hire a professional plumber to perform a camera inspection.

An AC drip pan may stop draining if there’s a clog where the drip pan connects to the drain line. Clogs can form from a lack of cleaning or from rust or corrosion buildup. Cleaning the drip pan at least once per month lowers the chances of debris clogging the drain line.

Water leaking through your basement floor is a good sign of a clogged drain, but another sign of a clogged basement floor drain can include unpleasant odors coming from the drain. Also, hearing gurgling noises when water drains from the basement or having other plumbing fixtures (like toilets or other drains) backing up is a good indicator.

A professional drain cleaner is a plumber or specialized drain cleaner with the necessary tools to unclog drains and tiles to keep waste water flowing out to the septic tank or city sewer for processing. Keeping wastewater from backing up into your home helps keep you and your family safe from potential contamination and sickness. These pros can help resolve nearly any drain situation in a safe and efficient manner.

If you’re not using a septic system, problems with your home’s plumbing won’t cause this—it’s a city problem. A large blockage in the municipal sewage lines may cause those lines to back up into your home. This is extremely unpleasant and can be a serious health risk due to bacteria and other contaminants. If this occurs, call a pro (or your city) immediately.

The Amherst, NH homeowners’ guide to drain pipe installations

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