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GM1 Construction LLC

Licensed
Licensed
Fireplace or chimney services needed

It’s free, with no obligation to book

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If you hire this pro, you’re covered by a money-back guarantee. Learn more

About
With 12 years in the construction industry, GM1 Construction brings proven expertise to every project. Our licensed team of eight professionals is committed to completing work on time, within budget, and to a high standard of quality. We offer personalized consultations and free estimates, taking time to understand your needs and vision—whether it’s roof repair, maintenance, or fireplace and chimney work. Every project receives careful attention to detail and solid craftsmanship. Clients choose us for our reliability, transparency, and long-term commitment. From initial planning through final clean-up, we handle the details so the process feels seamless and stress-free. Contact us today to discuss your project and see how GM1 Construction can help protect and improve your home.
Overview

Hired 14 times

Serves Cliffside Park, NJ

Background checked

License verified

8 employees

12 years in business

Business hours

SunClosedMon8:00 am - 6:00 pm

Payment methods

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

Social media

Instagram

Top Pro status

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

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2024

Credentials

License verified

Home Improvement Contractor (Business)

License state: NJ

Background checked

Passed by Gentjan Metalia on May 3, 2024.

Services offered
Fireplace or chimney services needed
Fireplace type

Wood

Fireplace material

Brick

Stone or concrete

Metal

Wood

Projects and media
Projects and media
Reviews

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

Exceptional 5.0

48 reviews

5

98%

4

2%

3

0%

2

0%

1

0%

Your trust means everything to us. Learn about our review guidelines.

Read reviews that mention:

pro avatar
Mini G.

Jul 12, 2025

•

Hired on Thumbtack

Amazing work by Jason on patio. He gave a very competitive quote and the work was done in 2 days. Fixed irregularities, nails, sanding and two coats of paint. Will def refer him to my friends and family.

Details: Staining • Medium (150 - 300 sq ft) • Residential

Deck Staining and Sealing
pro avatar
Tony K.

Jul 2, 2026

•

From Google

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KOKA-TECH H.

May 31, 2026

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From Google

I live in Queens, New York, and I found this company on Google because of their outstanding 5-star reviews. After working with them, I can honestly say they deserve every one of those stars.The team was professional, knowledgeable, and clearly experienced in what they do. They applied a silicone roof coating system to my roof and provided a 25-year warranty, which gave me great confidence in the quality of their work.I am extremely happy with the results. We recently had a heavy rainstorm, and the roof performed perfectlyno leaks, no water intrusion, and no issues whatsoever.Thank you for the excellent service and support. I truly appreciate your professionalism and workmanship. I highly recommend this company to anyone looking for reliable roofing and silicone roof coating services.
pro avatar
John T.

May 23, 2026

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From Google

GM1 is a top notch company. Jason first appeared on time to perform a through inspection of the work I inquired about, and took photos and videos of the chimney portion of the job I could not see from the ground. He verbally went over his findings and recommendations in detail while on site and in a day I had a very professionally written and detailed estimate with clear work details and an exact price. No pressure to close. Told me to take my time and ask all the questions I wanted to. Jason and his assistant Mario then did the job exactly as promised on time and on budget. He explained everything he was doing and again took photos and videos of what I could not see. He explained things as he went along and gave me all the time I needed. In some cases did more than he was required to do. Jason is as personable as he is professional. He made my wife and I very comfortable and confident. GM1 is stocked with good people as well as good artisans. I really could not recommend them any higher.
pro avatar
Craig H.

May 3, 2026

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From Google

Jason and his team did a great job rebuilding our front stoop. They were efficient and cleaned up very well! They made sure everything looked as perfect as possible!
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