GNK plumbing services

Top Pro

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Scheduling

Sewer and water systems

Property type

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 293 times

1 similar job done near you

Background checked

2 employees

21 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.

2025

2024

2023

Services offered

Sewer and water systems

Municipal water

Well water

Septic tank

Property type

House

Condo/Apartment

Townhouse

Projects and media

Reviews

Customers rated this pro highly for professionalism, work quality, and responsiveness.

Excellent 4.9

187 reviews

5

96%

4

0%

3

0%

2

2%

1

2%

Read reviews that mention:

Kamlesh K.

1 month ago

•

Hired on Thumbtack

Details: Replace an existing toilet • 1 toilet

Toilet Installation or Replacement

Marlene G.

Jan 7, 2026

•

Hired on Thumbtack

Toilet issue again had no plumber, did a search GNK was at top of list I liked reviews as a Senior decided to call them. I hoped for the best case that would not break the Bank. They responded in less than half hour and they came soon after. Jean knew what problem was and he came got to work a d fixed the toilet. I was thrilled to have it fixed. Very professional and courteous,friendly, loves what he does which has important as you do quality work. 5 🌟🌟🌟🌟🌟 I have GNK and I now have a plumber one less thing to worry about ! Marlene, Dracut

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

Plumbing Pipe Repair

Burak B.

Jan 2, 2026

•

Hired on Thumbtack

Details: Replace an existing toilet • 1 toilet

Toilet Installation or Replacement

Dennis P.

Nov 14, 2025

•

Hired on Thumbtack

Details: Replace an existing toilet • 1 toilet

Toilet Installation or Replacement

Milagros H.

Oct 29, 2025

•

Hired on Thumbtack

Details: Boiler • No heat • Two-story building • Condo or apartment

Heating System Repair or Maintenance

Credentials

Background Check

Jean Kossaifi

FAQs

What should the customer know about your pricing (e.g., discounts, fees)?
I offer multiple options with different proces and offer discounts depending on the job
What is your typical process for working with a new customer?
meet to customer assess the issue and discuss the options for the solution and make sure the customer is comfortable with our work
What education and/or training do you have that relates to your work?
I completed my journey license and master license. I have attended trainings around boilers and I complete yearly trainings to stay up to date with the latest procedures