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GNK plumbing services

Top Pro

252

hires

Top Pro

252

hires

Contact for price

Responds in about 2 hours


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About
I'm a Master Plumber. I provide Quality and Perfection. That is my number one goal. I do the job correctly and professionally. I'm not the cheapest, but I am skilled at what I do. Notes : We charge a $100 service fee, but if GNK Plumbing is hired for the job the fee will be waived. Monday to Saturday from 8.00 Am to 6.00 Pm
Overview

Current Top Pro

Hired 252 times

Serves Methuen, MA

Background checked

2 employees

20 years in business

Business hours

This pro hasn't listed their business hours.

Payment methods

This pro accepts payments via Cash, Check, and Credit card.

Top Pro status

Top Pros are among the highest-rated, most popular professionals on Thumbtack.

Top Pro Icon

2024

Top Pro Icon

2023

Projects and media

88 photos

Projects and media

88 photos

Services offered
Property type

Home

Multi-unit building

Office / business

Commercial

Reviews
Great 4.8

156 reviews

5

95%

4

1%

3

0%

2

2%

1

2%

Customer photos

Customer photos

Showing 1-5 of 156 reviews
pro avatar
Prem P.

May 12, 2025

Hired on Thumbtack

I recently used GNK Plumbing for a water filter replacement, and I couldn't be more impressed. From start to finish, their team was incredibly professional, courteous, and knowledgeable. They responded to my inquiry almost immediately and were able to schedule the service at a time that worked perfectly for me. The technician (Jean) arrived right on time, fully prepared, and walked me through the entire process. The quality of work was outstanding — the installation was clean, efficient, and done with great attention to detail. They also took the time to answer all my questions and made sure everything was functioning perfectly before leaving. It's rare to find a company that combines responsiveness, exceptional workmanship, and true professionalism — GNK Plumbing delivers on all fronts. I highly recommend them to anyone looking for reliable plumbing services. They’ve earned a customer for life!

Details: Point-of-entry filtration system for entire building • I would like to discuss with the professional • House

Water Treatment System Installation or Replacement
pro avatar
Michael B.

2 weeks ago

Hired on Thumbtack

He worked with me, (or I with him) to use available materials in my house to keep costs down and his time within reason.

Details: Point-of-entry filtration system for entire building • I already purchased the water treatment system • House

Water Treatment System Installation or Replacement
pro avatar
Demetri F.

1 month ago

Hired on Thumbtack

John came on time after being quick to respond to the service request. He was calm, efficient and quick with his work but friendly and confident. His rates are reasonable and kept to the amount quoted. Would definitely recommend and use GNK again.

Details: No, repair is not urgent • No, the building is not currently flooded • Sink • Toilet • Condo or apartment

Plumbing Pipe Repair
pro avatar
J C.

May 13, 2025

Hired on Thumbtack

Jean from GNK Plumbing was professional, responsive, and knowledgeable from start to finish. He quickly diagnosed the issue with my leaking washing machine shutoff valve and clearly explained my options. He came prepared, did high-quality work, and made sure everything was secure and leak-free before he left. I really appreciated his attention to detail and willingness to go the extra mile to ensure the job was done right. Highly recommend GNK Plumbing and will definitely call Jean again for any future plumbing needs!

Details: Other pipe installation needs • Other plumbing installation or replacement • House

Plumbing Pipe Installation or Replacement
pro avatar
Nadeem M.

Jun 1, 2024

Hired on Thumbtack

Jean was a pleasure to work with. He told me that the toilet I got was bad and we then replaced with a good one and installed bidet for me too

Details: Replace an existing toilet • 1 toilet

Toilet Installation or Replacement
Credentials
Background Check

Jean Kossaifi

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