We understand that many homeowners take great pride in the front door of their home. This is why we provide a variety of options for homeowners to choose from when it comes to their security, storm, and patio doors. Whether you need replacement windows to increase energy efficiency or new window installation for aesthetics, our team can help. From vinyl replacements to new bay or garden windows, we have what you need for your home. Since 1994, Master Seal has been the most trusted door installation company in the Baltimore and DC area.
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If you are looking to fix or replace the doors, windows, or patio gates that protect your home, Master Seal has you covered. We take great pride in providing the highest quality in workmanship, customer service, and on-trend products. Master Seal's owner has been in the door and window installation business for nearly 30 years.
Four days in with my new door and still getting compliments. Awesome product, well built, beautiful design, and already seeing less energy use. Shout out to Ron and Jeff, both good guys and with great workmanship skills. Able to solve instillation problems with my old house and create fantastic looking end result.
One of the most important investments you can make for your house is your front door. It is the very first thing your visitors see and gives a strong first impression of your home. The right front door can provide beautification for your home and security for your family. Whether you are in the middle of a remodel or badly need to replace a damaged door, we want your business.
Master Seal is looking to hire an experienced residential exterior door installer. Join our elite team of professional installers servicing the Baltimore & DC area. Master Seal is a family-owned business operation that has been serving customers for over 25 years! Experience in the installation of new construction and replacement doors, security storm doors, aluminum storm doors, patio gates/window guards. Apply today to join the Master Seal brand of quality, workmanship, professionalism, and integrity!
Reviews (14)
Nathalie Martin
May 03, 2022
From start to finish, we were happy with the entire procedure. We believe we received good value for our money by purchasing high-quality windows. Excellent communication and they also listen to our concern and very attentive as well. Very thorough installation and I was satisfied with the result. I will definitely use them again.
Melissa Garden
Apr 04, 2022
The sales process was excellent, no pressure, answered all my questions. Great job to your team on the windows. The were all very professional and courteous and you've been nothing but helpful, patient, and thorough during the entire process. This was by far the best experience we've had with a contractor!
Fred Little
Feb 18, 2022
Lisa Jennings
Feb 05, 2022
I recently purchased my SECOND Master Seal Door. it's a Storm door. My house is 70 years old so of course no standard door would fit. I chose a gorgeous color called Woodberry that matches the brick. When the installers set an appt they call and text you the day before and the day of TO LET YOU KNOW when you can expect them. They are professional courteous, friendly and PROMPT!
After installation we noticed a minor issue. We called and they sent someone out right away. The determined a solution to the problem. Today my door was fixed with the usual professional and very prompt service. I couldn't be happier with Master Seal. Their doors are not the cheapest, but the quality and the customer service are OUTSTANDING. Worth EVERY PENNY. HIGHLY RECOMMEND!
After installation we noticed a minor issue. We called and they sent someone out right away. The determined a solution to the problem. Today my door was fixed with the usual professional and very prompt service. I couldn't be happier with Master Seal. Their doors are not the cheapest, but the quality and the customer service are OUTSTANDING. Worth EVERY PENNY. HIGHLY RECOMMEND!
Martha J. Connolly
Dec 21, 2021
This company has high quality products, and excellent installation and service. I've bought three doors from them on different occasions. They show up and time and there are no surprises in pricing or service. The professional installer Ron Behr was outstanding. I highly recommend this great company! Services: Custom doors, General door installation
Antonio Marshall Sr
Dec 20, 2021
Patrick Keller
Dec 07, 2021
Master Seal Installers rank among the best I've ever known. I am a retired carpenter and former owner of a home improvement company. I personally replaced this window and the 14 others in my home 30+ years ago. Other replacement window bidders excluded protection/restoration of the beautiful interior finishes for this window (see picture) above our Kitchen sink where we spend a lot of time when we're indoors.
I would estimate that the effort put forth to install this unit and leave the interior finishes intact exceeded 30% of the effort to install the other 14 windows that were included in the job. I rate the quality of the work, the skills of the craftsmen, their patience, courtesy, friendliness and diligence to be truly outstanding. Post installation we have had two service calls to correct malfunctioning window latches, and both were handled very promptly.
I would estimate that the effort put forth to install this unit and leave the interior finishes intact exceeded 30% of the effort to install the other 14 windows that were included in the job. I rate the quality of the work, the skills of the craftsmen, their patience, courtesy, friendliness and diligence to be truly outstanding. Post installation we have had two service calls to correct malfunctioning window latches, and both were handled very promptly.
Jackie Thornton
Nov 19, 2021
Pamela Campbell
Oct 01, 2021
I received 11 new windows from Master Seal. They are absolutely beautiful. The installation went well and I am very pleased with this company. I also had a security door installed about a year ago and I love my door. Really makes me feel safe. I recommend Master Seal. Special shot out to Mr. Lambert and the office staff.
Shawna Quarles-Johnson
Aug 27, 2021
Tracey Henson
Aug 15, 2021
Harold Sample
Jul 25, 2021
Great service. Great product. I had the Provio patio doors installed and it is airtight. Holds the AC in! Mr. Ron was great! Very pleasurable and cleaned up afterwards. Good conversation. This is my second door installed and will soon have the screen door installed as well. If you want a product that will last the lifetime of your house, Master seal is who you should call. My front door has been on for 13 years and not a problem with the locks, hinges or insulation.
Donna T.
Jan 26, 2021
I had the builder grade garage entry door replaced by Master Seal. The price was well worth it. As they say, you get what you pay for. They recommended an AMI door with magnetic seals and the door is excellent! I love my new door and I can't believe it took me so long to replace it! Ron Behr did the installation and he was fantastic - very professional and detailed to get the door just right. When my new sliders come in, Ron will be installing these too. I can't wait! I highly recommend Master Seal.
Douglas Bradford
Mar 02, 2020
I recently had a storm door placed on my house. After ordering it and having the measurements taken, it took about four weeks for the door to be ready for installation. The installer, Ron Behr, was efficient and professional, and I would recommend him to anyone for further work. The door looks beautiful and works perfectly. I'm throughly pleased! Thank you, MasterSeal.
