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JonMasConstruction

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About
Welcome to JonMas Construction, where we believe that building relationships is just as important as constructing quality projects. With a steadfast commitment to integrity and excellence, I take pride on delivering great quality work that stands the test of time. I am dedicated to understanding your unique needs, ensuring that each project is tailored to meet your vision. At JonMas Construction, I also understand the importance of reasonable pricing. I strive to provide transparent quotes and flexible options that fit your budget, without compromising on quality. My goal is to create lasting partnerships with my customers, built on trust and mutual respect. Choose JonMas Construction for your next project, and experience the difference of working with a company that truly values its clients. *Offering 10% Military / Veteran Discount On All Services. Available to take on remote consultations.
Overview

Hired 4 times

Serves Saint Louis, MO

Background checked

2 employees

6 years in business

Business hours

This pro hasn't listed their business hours.

Payment methods

This pro accepts payments via Cash, Check, Stripe, and Zelle.

Services offered
Property type

Residential

Projects and media
Projects and media
Reviews

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

Exceptional 5.0

17 reviews

5

100%

4

0%

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Read reviews that mention:

pro avatar
Michelle l.

1 month ago

We had a great experience with Jonathan. He did a full bathroom remodel and basement finishing project. He was professional, easy to work with and delivered exactly what we wanted. We would definitely recommend for your remodeling needs.
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Gloria C.

Oct 24, 2025

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Hired on Thumbtack

After searching Thumbtack looking for someone to install some backsplash in my kitchen and several bids JonMac Construction was a the one I choose and I can truly say they contacted me came out gave me a bid and finished the job and I am very pleased

Details: Full remodel of existing kitchen • No, plumbing will not need to be relocated • No, electrical will not need to be relocated • Already have plans - just need installation • Residential

Kitchen Remodel
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Dustin P.

Jun 30, 2025

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Hired on Thumbtack

I recently hired Jon to complete a remodel of my kitchen. The entire experience was exceptional and exceeded my expectations. Jon was extremely professional and walked me through the process from start to finish to ensure I was comfortable with all the details. He communicated well and completed the project ahead of schedule. If you’re looking for a reliable, skilled, and trustworthy contractor, I would absolutely recommend JonMasConstruction.

Details: Installation of new cabinetry or fixtures • No, plumbing will not need to be relocated • No, electrical will not need to be relocated • Already have plans - just need installation • Residential

Kitchen Remodel
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Christine M.

May 25, 2025

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Hired on Thumbtack

They remodeled part of my basement and made it into a gym. It looks great, was on time and within the budget we discussed. Jon communicated throughout the whole process. I would recommend Jon and his crew!

Details: Residential • 500 - 1,000 sq. ft. • Yes, I will be modifying or adding living space to my basement • No existing plans, but have a good idea of what I want

Basement Finishing or Remodeling
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Chiddy C.

Sep 25, 2025

We first hired Jonathan to help us transform an empty basement space into a functional room, and we couldn’t be happier with the results! He did such a great job that we immediately asked him to take on our kitchen remodel as well. Throughout both projects, Jonathan was responsive, professional, and really took the time to work with us to make sure our needs and preferences were met. We love the outcome and would definitely recommend him to anyone looking for quality work and a reliable contractor.
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Jonathan Masudi

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