Get matched with top door pros in Potomac, MD

"Bottom Line: If customer service, especially years after installation, matters to you, then you NEED to work with this company. In 2018, we had new Provia external doors installed for our entryway and garage. After 8 years, the door sweeps were beginning to wear, and unfortunately, the original installer had retired his business. I was uncertain who exactly should handle the replacement in this case. As a long shot, I contacted Zen Windows who installed a Provia patio door for us in 2025. They sent out a technician who honored Provia’s warranty on our 2018 doors, replaced the sweeps, and realigned the doors as well. In a world of truly lackluster customer support, Zen Windows stands out as truly great. You will not find a better company."

"Jeremiah was a professional! He was on time, knowledgeable, and very polite and friendly. He, actually, did the whole job on-site---custom cut and replaced the glass in less than one hour. Thanks to him and to William, who helped with scheduling and invoicing. I would recommend Boston Window and Door Co. to anyone."

"Mr. Cooper was incredibly responsive to my request for a patio screen door repair. He was friendly, knowledgeable, and kept us informed throughout the process. The repair he performed on our screen door was EXCEPTIONAL and was promptly completed. I highly recommend him to anyone seeking a reliable and experienced window/door professional. I?ll definitely reach out to him again if I ever need another project."

"We have had NovaExteriors replace all our gutters, windows, sliding doors and front door over the last several years from the contractor grade products that the town house was built with. We have been very pleased with everything. They installed our steel front door about 10 years ago and we started to have issues with the deadbolt not aligning with the door jam and the rubber sweep wearing out over time. I contacted NovaExteriors, made my appointment and they arrived right on time and performed the needed maintenance that was required. The door is back to being perfect. Once again, we were very pleased with NovaExteriors, their prompt arrival and the quality of work. You can't go wrong with NovaExteriors."

"I highly recommend. I had a door that was misaligned so the door would not lock. Took 15 minutes to get the door fixed. Very professional and reasonable pricing. Thanks again. Corey"

"Door Repair - They did excellent work--fast and efficient. They found a solution where I thought there was none."

"They installed a new patio door handle for me - it wasn’t easy since I didn’t buy the right direction handle haha but they made some adjustments. Fair pricing, flexible scheduling. Would hire again!"

"Dex came out and fixed a bad storm door install. He showed up within the window he provided and gave an ETA as well. Very friendly and very reasonable on cost. I would recommend using him for any window or door needs."

"All if my interactions with Pen Win Windows and Doors, LLC has been extremely pleasant. I was extremely with the time and effort they took to inspect my roof as well as the time they took to address all y questions and concerns."

"Excellent experience! Ferny was right on time to give me a fair estimate for some minor work to be done repairing doors, fixing drywall, and painting over it. We promptly agreed to his estimate and he returned just about an hour later to do the job (the timing worked for us). Ferny and Carlos exceeded all of our expectations: the work was flawless and fast, and they left the place sparkling clean. Another issue regarding a leak came up while Ferny was still in the house. Lucky for us, Ferny was willing to consult on the problem and provided a quick fix at no extra charge, along with suggestions on how to avoid the problem in the future. I would absolutely recommend Ferny for your handyman needs, and I'm grateful to have finally found someone to rely on for handyman work in DC."