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TNT Services Group offers professional sales and installation of high-quality windows and doors throughout Maryland, Washington D.C., and parts of Pennsylvania, Delaware, Northern Virginia, and West Virginia. Our customers include production home builders, custom home builders, and general contractors looking for professional window and door installation in new construction builds or renovations.

Contact us for a turnkey solution for doors and windows today! Established in 1996, our company has built a reputation as a reliable and qualified partner providing superior window, door, and homewrap installation services in high volume and complex projects in the production and custom home build industries.
Services
TNT Services Group, Inc. was founded in March of 1996 by Don and James Tarleton. Prior to starting TNT, Don sold windows and doors for 20 years and James traveled as a manager in the trade show industry. Initially, TNT operated from James' garage as a service company repairing doors and windows. By the end of 1996, TNT began selling and installing windows and exterior doors to residential builders.
Production home builders in the Baltimore, MD and Washington D.C. areas know they can count on TNT Services Group for competitive prices and prompt installation for all of their fenestration and weatherization service needs. We provide full window, door, and resistive barrier sales and installation services throughout Maryland as well as Northern Virginia, and portions of Delaware, Pennsylvania, and West Virginia.
Custom homes are unique and highly detailed - your window and door supplier should be too. At TNT Services Group, we sweat the details to ensure the end result is greater than expected. Custom homes are becoming larger and more complex. Coupled with heightened performance expectations it is paramount to use experienced installers who guarantee their work.
For general contractors in Maryland and D.C. looking for quality sales and installation of our industry-leading products, our light commercial services provide the same quality assurance and competitive pricing we're known for in the residential sector. What is light commercial? We specialize in buildings that are six stories or less.
Reviews (4)
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Lisa White
May 19, 2022
I left a review a few days ago. And it appears as though it has been disputed or removed. My experience with this company is authentic. They are contractors for Wormald Home Builders. The window that was installed in my home was cracked and my panel doors were not properly insulated. The customer service I received from the manager was below 1 star. If you Google needs further proof of our interactions please reach out to my email. Thank you!
Denise M. Kuhn
Nov 16, 2019
4.5.should be include a 1/2 star option. Waitress very attentive, Food good, nice to see owner again after many years since been there.
Megan Elias
Apr 25, 2019
Needed a repair done on my front door under warranty, specificity told whoever I spoke with that arranged this to be fixed that the hinges seemed bad. Well long story short, after waiting an hour & 1/2 for these two workers to show up at my home, all they brought was a can of pledge to fix the issue. no hinges on their van. Highly disappointed, especially when my time is also wasted.
Val Boston Iv
May 14, 2016
If Don is leading this company, I am surprised they have lasted more than 2 hours. I can't rate them less than 1 star. negative 10 is more appropriate.