*The Angi rating for Window And Door Contracting companies in Dover, DE is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Window And Door Contracting needs.
*The HomeAdvisor rating for Window And Door Contracting companies in Dover, DE is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Window And Door Contracting needs.
Last update on December 15, 2025
Serving Dover, DE and surrounding areas
Approved
In business since 1972
Free estimates
Emergency services offered
"The crew Patsy sent did an excellent job in installing the new door that we purchased. A fair amount of field fitting was required which they handled professionally. We are very pleased with the work and would hire again."
+25
Serving Dover, DE and surrounding areas
Approved (Corporate)
Super Service Award Winner
In business since 1992
Free estimates
Warranties offered
"I got some windows from Power and LOVE their work so we ordered 2 doors too. The doors are amazing and they were very professional and courteous during the install. I continue to be impressed by Power and will continue to reach out to them as needs come up."
+24
Serving Dover, DE and surrounding areas
Approved
Super Service Award Winner
In business since 2002
Free estimates
Emergency services offered
"Great pricing for a last minute weekend job. I'm disabled and going through a divorce and absolutely could NOT paint that room with all the other work I needed to do on the house. Jermaine did a great job and kept us right on our selling timeline."
+81
Serving Dover, DE and surrounding areas
Approved
Super Service Award Winner
In business since 2013
Free estimates
Credit card accepted
"Lemar and Ryan were super helpful, quick and ready to get to work. Such a great job with my Sliding Patio Door."
Serving Dover, DE and surrounding areas
Approved (Corporate)
In business since 2000
Free estimates
Warranties offered
"Installed 22 new windows, 2 entry doors, and new sliding glass door. Outstanding service, price, and installation. Highly recommend."
+55
Serving Dover, DE and surrounding areas
Approved
In business since 2004
Free estimates
Emergency services offered
"Mike showed up on time, was extremely knowledgeable about the issues regarding my roof, and provided many recommendations. As a newer home owner that has luckily not had to make these calls before, Mike's professionalism and ability to describe the issues in a way I could understand could not be appreciated more. He had a positive attitude and even laughed at my jokes... While I was beyond impressed with the detail and assistance provided, I was not able to use them at this time. However, there is no question that I will use them in the future!"
+78
Serving Dover, DE and surrounding areas
Approved (Corporate)
In business since 1991
Credit card accepted
Offers commercial services
"Professional, knowledgeable in sales, installation and customer service. warranty that cannot be beat! replaced 11 windows in one day and even removed a door and made it into a window. All in one day! Had them come back to replace our front door as well. Highly recommend if are looking for lasting product, qualified installers and a warranty that stays with thg he house forcas long as it stands."
+13
Serving Dover, DE and surrounding areas
Approved
In business since 2020
Free estimates
Warranties offered
"Professional, friendly, explained what the problem was and fixed it. I'll be hiring them when I need a new roof!"
+24
Serving Dover, DE and surrounding areas
Approved (Corporate)
Super Service Award Winner
In business since 2007
Free estimates
Warranties offered
"Renewal by Andersen of Wyoming did an incredible job with installing windows in our home. Thank you to the team who did the install and to the company for creating these exceptional windows."
+2
Serving Dover, DE and surrounding areas
Approved (Corporate)
In business since 1997
Free estimates
Warranties offered
"Ryan, Eric and Matt did a great job waterproofing and installing sump pumps. They where onTime, professional and did a great job. They did fantastic work and very very professional the entire time. They took time to review different aspects of project that made me feel comfortable that they understood the job and had options for how I would like things done. Would definitely recommend this crew!! Thanks guys!"
+16
Door installation usually takes three and four hours, including removing the old door and frame, fitting the new door and frame in place, shimming it to make sure it’s perfectly level, and making adjustments to the hinges and locking mechanisms to ensure proper functionality. A door-hanging professional can replace an interior door in between one and two hours. Door installation will take significantly longer if your installer needs to create a wall opening, and it can take less time if the existing door frame remains.
If you have a problem with your window, such as broken glass, minor leaks, or a problem with your window being stuck, repairing the broken part might be a cheaper option than replacing the entire window. However, if you have a deteriorating window frame or major leaks, buying a new window will be the better long-term solution.
The average cost to install a door is around $1,100, but you could pay anywhere from $150 for a hollow-core interior door installation up to $2,000 or a high-end exterior door installation. There are a few cost factors to consider to get an accurate price, including whether your wall opening exists, the type of door, the quality and security of the door, whether you need to replace the frame, and the door size. You can expect to pay $150 to $700 for a standard 36-by-80-inch door and between $400 and $1,600 for an 80-by-48-inch door.
Window replacement costs between $180 and $410 per window, or an average of $280 per window. However, your specific replacement job could cost as little as $100 or as much as $750. Factors such as frame material, the number of windows you need, and the type of glass you order all impact the overall cost. For example, simple double-glazed windows will cost $3 to $6 per square foot, but the stronger tempered glass ranges from $12 to $14 per square foot.
It’s possible to install a door yourself if the wall opening already exists, but the work is rather complicated, and a professional installation is usually well worth the investment. For your door to work and close properly, you’ll need to shim and level the door frame in your wall perfectly, which can be difficult. Additionally, we recommend you always hire a professional door installer to place an exterior door, as mistakes during the installation process can lead to poor security for your home.
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