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Top-Rated Window and door contractors in Hanover - Updated Nov 2026

Avatar for Innovative Home Improvement
Innovative Home Improvement
5.0(
136
)
New Windows - 6 +New Windows - 3-5

Serving Hanover, MD and surrounding areas

Approved

Super Service Award Winner

In business since 1986

Free estimates

Warranties offered

"From the first meeting to obtain a quote until the team left, every step of the process was professional. Paul came out personally to show us a sample window and provide us a quote on windows and make recommendations to replace our patio and storm door. Paul patiently answered all of questions & communicated with us up thru the installation. The team of installers were quick and professional, replacing 11 windows, a custom patio door, and storm door within a day. They cleaned up every piece of packaging, metal, etc and demonstrated how to use the new windows. I would recommend Innovative Home Improvements without reservation."
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+13

23 neighbors recently requested a quote
Recommended by93%of homeowners
Avatar for A.R. Glass Repairs
A.R. Glass Repairs
5.0(
23
)
Window Glass - Install or Replace

Serving Hanover, MD and surrounding areas

Approved

In business since 1989

Free estimates

Emergency services offered

"Excellent work. The person who assisted us was gruff and no-nonsense, but professional. He asked that we send a photo of the window, which we did. He then came out and measured the window. He came back a couple of days later, and completed the work. The window looks fantastic, and we are very pleased with his work."
Response time1 day
Response rate100%
Recommended by81%of homeowners
Avatar for Unicorp Home Energy Services
Unicorp Home Energy Services
4.9(
630
)
New Windows - 6 +New Windows - 2 - For BusinessNew Windows - 3-5 - For Business+3 more

Serving Hanover, MD and surrounding areas

Approved

In business since 1987

Free estimates

Warranties offered

"From the quote to the completion of the installation, we were very happy that we chose Unicorp. We did a full (28 windows) window replacement and 1 exterior and storm door replacement. The windows are the Prodigy by Uncorp windows and they are beautiful and well-made, and the price was more than competitive with the other quotes we received. Our house is 100 years old and still had the original windows, so it was a very challenging and lengthy installation, but their installer did an excellent and very thorough job. We plan on using Unicorp again in the future when we replace our remaining exterior doors."
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+10

Response time1 day
Response rate100%
6 neighbors recently requested a quote
Avatar for Innovative Home Improvements
Innovative Home Improvements
4.9(
432
)
New Windows - 3-5New Windows - 6 +

Serving Hanover, MD and surrounding areas

Approved

Super Service Award Winner

In business since 1986

Free estimates

Warranties offered

"After spending an average of 2.5 hours per interview, hearing essentially the same pitch from each of the bigger window replacement companies, I received a call from Paul Harrison from Innovative Home Improvements. I almost didn't answer it but am sure glad I did. I told Paul I was considering other offers and didn't want to hear another sales commercial. Paul laughed and promised he would only take 30 minutes of my time and if he exceeded that time, I could throw him out. He actually stayed 45 minutes only because of my questions. Unlike the bigger companies who threw shade on their competitors, Paul said they all had good windows but he could provide better value because he didn't the same overhead and also had great crews who has worked for him for several years. He said he could offer any brand [Pella, Anderson, etc.] but recommend Vytex because of their quality. I liked that the windows were manufactured locally and valued suggestions from their contractors on improvements. [BGE Home offered the same brand but their price was 20% higher.] I learned alot from the other companies and compared thr performance specs] the Vytex brand more than measured up. Paul submitted an extremely reasonable price for 17 custom-made windows and they were ready to install within 30-days. His crew arrived 15 minutes early ( big surprise) and completed the entire job in seven hours. The workmanship was perfect, the caulking seamless, and they left the grounds with no evidence that they'd been there. And to put icing on the cake, they adjusted both my front door and a French door that were not properly installed when we rennovated two-years ago, at no extra charge. We had only one minor issue with a window that needed adjustment and his installer arruives in two-days. The windows sparkle and most importantly, my wife is thrilled. I now have more than a "window guy", but a friend who'd I'd recommend to anyone. Ken Buck"
New Gentek-signature-Elite windows
Gentek-signature-elite inside pictures
Gorgeous custom Gentek-signature-elite specialty w
Energy efficient ProVia fiberglass doors
Replace kitchen door

+45

Response time9 hrs
5 neighbors recently requested a quote
Recommended by84%of homeowners
Avatar for DEX Window & Door Repair
DEX Window & Door Repair
5.0(
19
)
Door or Window Screens - Install or RepairDoors - RepairDoors - Repair - For Business+3 more

Serving Hanover, MD and surrounding areas

Approved

In business since 2020

Free estimates

Credit card accepted

"If you need a door repaired, hire Dexter. He was absolutely professional from start to finish, incredibly humble, and his pricing was more than fair. He diagnosed the issue quickly and fixed it right the first time without trying to upsell me on anything unnecessary. Honest, high-quality work is hard to come by—I will definitely be calling him again if I need anything else."
Project photos
Avatar for Pen Win Windows and  Doors, LLC
Pen Win Windows and Doors, LLC
4.2(
229
)
Doors (Exterior) - Install or ReplaceNew Window - SingleSliding Door - Install

Serving Hanover, MD and surrounding areas

Approved

In business since 2012

Free estimates

Credit card accepted

"I plan to get Windows done. They were very professional and did everything efficient as they said. I love my doors and the install crew did job cleaned up and I would highly recommend them"
Perfection
Response time2 days
2 neighbors recently requested a quote
Recommended by91%of homeowners
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Window Door Contractors FAQs, answered by experts

Window screens can help keep some heat out of your home, which is one benefit of using them in summer. It’s also the reason experts suggest removing your screens in winter—so it’s easier for the sun’s warmth to filter into your home. This will keep you cozier and potentially reduce your heating bills.

Window screens can take anywhere between 10 minutes and an hour to replace, depending on the complexity of the replacement and the accessibility of the window. Replacing the screen inside an existing frame normally takes longer than replacing an entire screen, frame and all, if you purchase a prefabricated screen already mounted on the frame.

The screen on many screen doors is held in place by screen spline. Screen spline is typically a thin vinyl tubing that fits into the groove of the door’s frame and holds the screen in place. To install the spline on a screen door, you’ll need a spline roller—a tool that presses the spline and screen into the door’s narrow groove. Note that old spline can crack and break, so replacing your screens is a good time to replace the spline, too.

No, it’s not safe to leave a doggy door open. It might be more convenient, especially at night when you just want to lay in bed. However, when you leave it open, it increases the chance of other critters getting in without your knowledge. Also, it leaves your pup unsupervised for hours at a time.

Yes, adding windows adds value to a brick house. Homeowners don’t shy away from more natural light and an opportunity to get fresh air. Adding a window is particularly beneficial if you live in an area with good weather for much of the year or if your home has a nice view. Keep in mind that many older brick homes have historic wood windows that add to the charm of the house. When you install a new window in a brick house, you’ll want to find one that matches the aesthetic of the existing windows.

While windows increase a home’s value, how much they increase it can vary. It depends on the age of the home and the type of windows. You can expect about 70% to 85% return on investment (ROI) when adding a window to your home.

The Hanover, MD homeowners’ guide to window and door contracting services

From average costs to expert advice, get all the answers you need to get your job done.