Top-rated sump pump or interior foundation drains installers.

Get matched with top sump pump or interior foundation drains installers in Williamstown, NJ

Enter your zip and get matched with up to 3 pros

Matching on HomeAdvisor

Share some details icon
Share some details about your home project.
Match with local pros icon
Within moments, match with highly-rated local pros.
Compare quotes icon
Compare quotes and choose the best pro for the job.

Find Sump pump or interior foundation drains installers in Williamstown

Avatar for GPS Plumbing Inc
GPS Plumbing Inc
4.9(
171
)

Serving Williamstown, NJ and surrounding areas

Approved

Super Service Award Winner

In business since 1989

Emergency services offered

Warranties offered

"Called GPS to explain what was going on after having the line snaked and plunged 2 different times from a previous company. Previous company did find a lodged object in the line. They told us we needed to dig up the sewer line, cut the pipe, remove the object and then repair. Max from GPS was here for five minutes when he thought to dig up some of our grass to look for a trap by the street. Which he found immediately ! Took him 2 more minutes to use a tool to grab a sippy cup that my son must have thrown down the drain on the side of the house. So thankful he thought to look for that trap. It not only saved me money and time, but gave me great relief that my plumbing is going to go back to normal again. All the girls who work in the office were extremely helpful as well ! Highly recommend Max and GPS and will be using them for all of our plumbing needs in the future. If anyone ever needs a plumber I'm recommending GPS. Thank you Max !!"
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+4

Response time1 day
Recommended by91%of homeowners
Avatar for Dry Tech Waterproofing Solutions
Dry Tech Waterproofing Solutions
4.7(
220
)

Serving Williamstown, NJ and surrounding areas

Approved

Super Service Award Winner

In business since 2010

Free estimates

Emergency services offered

"The job was to put a sump pump and French drain into a crawl space off my basement. It was completed in a timely fashion. They removed all material in the crawl space and also sprayed an anti mold solution. When I called company to ask questions Jason kindly explained the answer."
Digging out the area
Filling in the crack
During
Insulation board is placed over the Water Shield
Water Shield

+24

Response time8 hrs
Response rate99%
146 neighbors recently requested a quote
Avatar for Laury Heating Cooling & Plumbing
Laury Heating Cooling & Plumbing
4.8(
158
)

Serving Williamstown, NJ and surrounding areas

Approved

In business since 1945

Free estimates

Emergency services offered

"Everything ran very smooth. Once he determined the problem, he had the parts on the truck and proceeded to make the repair. Dana was very friendly explaining what he had done. Tested the unit, making sure everything was working properly. I only have good things to say about Laury and all their techs."
High efficiency Carrier condenser.
High efficiency Carrier Infinity gas furnace with variable speed blower.
High efficiency Carrier gas furnace and Trion Air Bear filter.
High efficiency Carrier heat pump installation.
Ductwork installation.

+13

Response time10 mins
Response rate100%
22 neighbors recently requested a quote
Avatar for Groundworks
Groundworks
4.6(
393
)

Serving Williamstown, NJ and surrounding areas

Approved (Corporate)

In business since 1997

Free estimates

Warranties offered

"From the estimate process until final product finished today, we could not be happier with BQ Initially was quoted a 2 day process to complete our Aquastop waterproofing system and sump pump replacement, Steve, Curtis, Pedro, and Josh arrived as promised at 7:30 and completed the job by 1:30. They explained the entire process and updated us throughout. They were very professional, efficient, and polite. Everything was explained about the new system and cleanup has the basement back to pre construction condition. We highly recommend BQ Basements and Concrete!"
Protect Your Crawl Space
Protect Your Crawl Space
Protect Your Crawl Space
Correct Your Smelly Crawl Space
Protect Your Crawl Space

+16

534 neighbors recently requested a quote
Recommended by90%of homeowners
Avatar for Vaughan Comfort Services
Vaughan Comfort Services
4.9(
125
)

Serving Williamstown, NJ and surrounding areas

Approved

Super Service Award Winner

In business since 1937

Free estimates

Emergency services offered

"Techs were extremely punctual, professional, and very knowledgeable. The work was done fast, done well, and reasonably priced. Very happy with the work and will seek these guys out for any other HVAC Or plumbing work I may need in the future."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+6

Response time3 hrs
Response rate97%
13 neighbors recently requested a quote
Avatar for Pete The Plumber, LLC
Pete The Plumber, LLC
4.9(
18
)

Serving Williamstown, NJ and surrounding areas

Approved

In business since 2015

Free estimates

Customers say: Quick response

"As a home improvement contractor myself there are certain things I value in a sub contractor, and Pete The Plumber has those I was looking for. He returned calls and emails, showed up for the job on time and his price was in line with our budget for the project. I would recommend his services for home owners and contractors alike."
Response time1 hour
Recommended by100%of homeowners
Avatar for Reale Plumbing & HVAC, LLC
Reale Plumbing & HVAC, LLC
4.8(
18
)

Serving Williamstown, NJ and surrounding areas

Approved

In business since 2023

Free estimates

Emergency services offered

"We are truly pleased by service we received to repair broken sewage line . Boys were at the property ahead of time and cleaned up after job was done . Pricing was reasonable as well and owner of company did cone in the end to ensure job was done correctly. Highly recommend Reale plumbing ."
Final
Final
Final
Tile prep
Before

+26

Response time9 hrs
12 neighbors recently requested a quote
Recommended by83%of homeowners
Avatar for Clay's Climate Control
Clay's Climate Control
4.9(
73
)

Serving Williamstown, NJ and surrounding areas

Approved (Corporate)

In business since 2001

Emergency services offered

Credit card accepted

"The installers were very prompt in arriving and went to work right away. They were very professional and precise with installing the equipment. After the job was finished they went over everything with me and answered any questions I had."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+8

Response time2 days
5 neighbors recently requested a quote
Recommended by95%of homeowners
Showing 1-10 of 17
FAQs for sump pump or interior foundation drains installation projects in Williamstown, NJ

Most residential pumps draw approximately 1,300 to 2,900 watts when they first start, then settle at roughly 800 to 1,050 watts during normal operation. The exact number depends on the motor’s horsepower and how often the float switch tells the pump to run. Even at the high end, the electricity cost is minor compared with the expense of cleaning up a flooded basement.

Grab a ruler and an empty 18‑inch‑wide pit. During a steady rain, time how much the water rises in one minute. Multiply that depth (in inches) by 60 to calculate gallons per hour, then add 50% for safety. If the result tops 2,100 gallons per hour—about 35 gallons a minute—you’ll need a 3/4‑horsepower unit. Anything lower, and a 1/3- or 1/2-horsepower pump should do the trick.

Loud rattling, constant cycling, or shuddering vibrations are the pump’s way of telling you it’s on its last legs. Musty smells, higher electric bills, and visible rust are other red flags. If the unit is 10 years old or older and exhibits any of these symptoms, replace it before the next heavy rain turns your basement into a wading pool.

You don’t have to hire a licensed plumber, but you should still bring in someone who installs sump pumps for a living—whether that’s a plumber, basement‑waterproofing specialist, or experienced handyman. They know the local codes, can wire the pump safely, and will test the system before they leave. Skipping professional help might void the warranty and could leave you with a pump that fails when you need it most.

Not every basement needs a pump, but if your home sits in a floodplain, has a high water table, or has ever taken on water during a storm, a sump pump is inexpensive insurance. For basements that only struggle with condensation or the occasional damp spot, sealing cracks and improving drainage may be all that is needed.

The Williamstown, NJ homeowners’ guide to sump pump or interior foundation drains installations

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