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  • Average homeowner rating star icon4.4
    Average homeowner rating
  • Verified reviews icon124
    Verified window and door contracting services reviews

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

Avatar for ARDMOR Windows & Doors
ARDMOR Windows & Doors
4.7(
145
)
New Windows - 6 +New Windows - 3-5Doors (Exterior) - Install or Replace+18 more

Serving Frederick, PA and surrounding areas

Approved

In business since 2015

Free estimates

Warranties offered

"Recently we hired Ardmore to replace the glass in 2 of our skylights and install a new storm door. Other than rain delays the skylights were installed in less than 2 hours as Ardmore sent 2 crews for the installation. They even came inside to vacuum any debris that might have fallen into the house during the installation. (5 out of 5). The installation of the storm doors was different. It took over 10 hours for 2 men to finish the installation which I felt was excessive and felt they didn't do the installation correctly. The difference between a good company and a better company is how well they fix a problem and to this point they are doing a better job. When I called to complain the scheduler immediately suggested they send out someone to inspect the work and within 3 days someone came out and fixed 2 out of the 3 problems and said someone would be calling me and ordering a replacement part to fix the 3rd problem"
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+65

18 neighbors recently requested a quote
Recommended by92%of homeowners
Avatar for Alderfer Glass Co.
Alderfer Glass Co.
4.8(
71
)
Window Glass - Install or Replace

Serving Frederick, PA and surrounding areas

Approved

In business since 1961

Free estimates

Warranties offered

"They came out quickly and he did a nice job repairing the windows. The price certainly seemed fair to me although I didn't price with anybody else because it was kind of an emergency situation. The fellow who came to give me an estimate told me it would take weeks for them to do it. I had to clean up my house for sale on Thursday and I needed this done. When I called the company and said that I'm in an emergency, they said they can get here the next day. They came within a day. I went upstairs and there was a gap in one of my windows so I went to weather strip it and I noticed one of the paint seemed to be loose in an area. I called immediately and the guy came right back and explained to me that it takes a while for the putty to set and what I was seeing was normal, etc. I felt kind of stupid calling them and he said he should have explained it to me and said he was very sorry. He said they rather I call them now than not call them. I was very impressed with them. I would use them in a millisecond again."
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+53

5 neighbors recently requested a quote
Recommended by94%of homeowners
Avatar for ARDMOR, Inc.
ARDMOR, Inc.
4.3(
310
)
New Windows - 6 +Window Glass - Install or ReplaceNew Windows - 2+1 more

Serving Frederick, PA and surrounding areas

Approved

In business since 2014

Free estimates

Warranties offered

"Needed a small curved window pane replaced on 3rd floor window. The on line quote was within 5.00$ of actual job cost. They were professional / on time and did a great job . Would hire again!"
Casement window sash before repair
Sliding Patio Door Sash Before
Sliding Patio Door Sash Rotted
Casement window sash in process of repair
Sliding Patio Door Sash After

+44

Response time6 hrs
4 neighbors recently requested a quote
Recommended by96%of homeowners
Avatar for Home Genius Exteriors
Home Genius Exteriors
5.0(
212
)
New Windows - 2New Windows - 3-5New Windows - 6 +

Serving Frederick, PA and surrounding areas

Approved

In business since 2004

Free estimates

Emergency services offered

"am very pleased with home Genius and its crew. Every single person from project management on down was very pleasant, and offered answers to all my questions. They worked together as a team and didn’t just put the 3 bay windows in, they talked to each other and made sure everything was being put in evenly carefully and completely. Kudos!!!! Thank you all!!!"
Asphalt Roofing
Asphalt Roofing
Asphalt Roofing
Asphalt Roofing
Asphalt Roofing

+78

70 neighbors recently requested a quote
Recommended by9%of homeowners
Avatar for The Flying Locksmiths of Greater Philadelphia
The Flying Locksmiths of Greater Philadelphia
4.5(
64
)
Doors - Repair - For BusinessDoors (Exterior) - Install or Replace - For BusinessDoors (Interior) - Install or Replace - For Business+1 more

Serving Frederick, PA and surrounding areas

Approved

In business since 1946

Free estimates

Emergency services offered

"Flying Locksmiths came out and replaced my exterior locks on 2 doors at my new home. They were prompt, scheduled when convenient for me, and completed the job quickly - in far less time and effort that it would have taken me. Would definitely hire them again if needed."
TFL_1
TFL Technicians
TFL_2
TFL Roots
TFL_3

+10

Response time1 day
18 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for Power Home Remodeling
Power Home Remodeling
4.2(
790
)
New Windows - 6 +New Windows - 3-5

Serving Frederick, PA and surrounding areas

Approved (Corporate)

Super Service Award Winner

In business since 1992

Free estimates

Warranties offered

"A wonderful experience all around! We had 15 windows and a sliding glass door replaced. Our Salesperson, Harlan, was very professional and explained the benefits of the new windows and all about Power as a company. The installers arrived on time and completed the entire job in a day! Everything was installed perfectly and the crew was courteous and cleaned up after themselves. Erin came to visit the next day to make sure everything was up to their standards and addressed any questions we had. Most certainly the best experience we've ever had with a home contractor. Highly Recommend!"
Double Hung & Double Hung W/ Half Round
Double Hung W/ Half Round
Double Hung W/ Half Round
Double Hung
Double-Hung Window

+24

1686 neighbors recently requested a quote
Recommended by88%of homeowners
Avatar for RMD Glass & Glazing
RMD Glass & Glazing
5.0(
14
)
Window Glass - Install or Replace

Serving Frederick, PA and surrounding areas

Approved

In business since 2010

Free estimates

Warranties offered

"Rob was personable, professional and prompt! He was able to seamlessly repair a custom window and even matched the tint. You are unable to tell it was repaired. His prices are very fair, and competitive. Would recommend him to anyone looking for window repair and other glass services"
Seal-Failed Window
Seal-Failed Patio Door Glass Replacement
Response time3 days
2 neighbors recently requested a quote
Recommended by81%of homeowners
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Window Door Contractors FAQs, answered by experts

If you’re not keen on using a traditional doggie door, there are some alternatives. One popular option is a solid, insulated door that you can lock when you’re out of the home for added security. You can also opt for a doggie screen, which you can lift and lower to allow your pooch access to the outdoors. These are a bit more convenient to use than a regular exterior door, although security could be an issue. You can also install a screen door with a small opening for your pup to prevent bugs from coming inside as your dog exits.

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.

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 cost ultimately depends on size, but roughly, the most popular screen materials will set you back anywhere from around $0.25 to over $25 per square foot. Fiberglass and aluminum are usually less expensive at around $0.25 to $0.70 per square foot. Solar screens cost about $7.50 to $15 per square foot, while security screens range from around $10 to $25 per square foot.

A screened-in porch requires maintenance to keep the screens clean and in good shape, and you may have to do some screen repair or replacement from time to time. A screen porch isn’t an all-season porch, so the weather can get in, including wind and rain.

The Frederick, PA 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.