Top-rated window and door contractors.

Best window and door contractors near Seaford, DE

Enter your zip and get matched with up to 5 pros

Need a pro for your window and door contracting project in Seaford, DE?

Select your specific project to find the pro for you.

TRUSTED BY SEAFORD, DE HOMEOWNERS

  • Average homeowner rating star icon3.7
    Average homeowner rating
  • Verified reviews icon177
    Verified window and door contracting services reviews

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

Avatar for Something Constructive
Something Constructive
4.9(
118
)
Doors - RepairDoors - Repair - For BusinessHardware, Latches & Tracks (Door) - Repair or Replace+5 more

Serving Seaford, 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."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+25

Response time1 day
Response rate100%
Recommended by97%of homeowners
Avatar for Renuity Northeast
Renuity Northeast
4.3(
38
)
Doors (Exterior) - Install or ReplaceNew Windows - 6 +New Windows - 3-5

Serving Seaford, DE and surrounding areas

Approved (Corporate)

In business since 2000

Free estimates

Warranties offered

"I have to say that Matt, Dave and Rich were amazing! They were professional, friendly and cleaned up after themselves! I will tell anyone I know looking for windows to call Rite Window for sure. Happy customer Darlene"
Entry Door
Doors
Doors
Doors
During Installation

+55

Response time6 hrs
2635 neighbors recently requested a quote
Recommended by66%of homeowners
Avatar for Castle - The Window People
Castle - The Window People
2.9(
1,726
)
Doors (Exterior) - Install or ReplaceSliding Door - Install

Serving Seaford, DE and surrounding areas

Approved (Corporate)

In business since 1991

Credit card accepted

Offers commercial services

"My name is Jason Haslbeck and I live in Chester County, PA. My wife and I have used Castle Windows for the replacement of all our windows, a new front door and now a new custom French Door slider (three separate project installations). Our sales representative, Roberto Munoz, has been an absolute pleasure to work with for all of our installations. Their customer service is excellent and their products are the best in the industry. Their lifetime warranty is legitimate and very valuable. Due to the Corona Virus, our latest project design consultation (French Doors) was done over the telephone using a ZOOM application. Very convenient technology and the presentation was very professional. On a personal note, our sales representative (Roberto) is a very faith based, honest human being and we have never been happier with a contractor or sales representative. I would highly recommend asking for Roberto Munoz as your sales representative as he is very knowledgeable, professional and courteous. Overall, from my experiences, Castle Windows is the best window and door company in the region. We did extensive research in comparing them to Pella, Anderson and other companies and Castle's product quality, installation and pricing was the best value by far. I would normally never take time out of my day to write a review, but my experience with Castle Windows (and Roberto Munoz) is one that deserves recognition. Jason & Hope Haslbeck Chester County, PA"
Habitat for Humanity Donation Day!
Another Happy Customer!
Toys For Tots collection!
Since 1977!
Coat Drive

+13

Response time1 day
Response rate100%
30 neighbors recently requested a quote
Avatar for Mike's Home Improvement
Mike's Home Improvement
5.0(
9
)
Doors - RepairDoors - Repair - For BusinessHardware, Latches & Tracks (Door) - Repair or Replace+5 more

Serving Seaford, DE and surrounding areas

Approved

Super Service Award Winner

In business since 2017

Free estimates

Warranties offered

"Mike and his crew showed right on time. They took the time to understand my problem. They suggested ways to fix things and laid out a plan to get it done. They started right away and did a great job for me. I hope to use his services on other jobs around the house."
Addition
Addition
Addition
Addition
Addition

+20

Response time2 days
Response rate100%
Recommended by37%of homeowners
...
Showing 1-10 of 206
Window Door Contractors FAQs, answered by experts

Window seals don’t last forever, so they’ll inevitably fail for one reason or another. One of the most common reasons is the expansion and contraction of the glass. When the glass gets warm from sunlight, it expands and adds pressure to the seal; at night, as the glass cools, it contracts. This process, day in and day out, can eventually cause the seal to fail. Other common sources of failure include the house settling over time, chemicals that damage the seal when repainting windows, and incorrect window installation.

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.

Most windows last for 15 to 30 years, depending on the frame material and the glass quality, but most will require repairs during that time. Windows gradually lose efficiency, so it’s usually best to have a window repair technician inspect and service your windows every five to 10 years. You should also repair your windows if you experience the following:

  • Leaks

  • Drafts

  • Difficulty opening or closing

  • Sudden increases in heating and cooling bills

  • Outdoor noise becomes more audible

  • Signs of physical damage

Window repairs cost $175 to $615, depending on the type of repair. Because double-hung windows have two sashes and multiple pieces of hardware, like locks and handles, there are many parts that can break over time. Repairing locks, latches, or other hardware costs about $75 to $200 and is easy to DIY. Fixing one or multiple sashes costs about $200 to $600.

Installing a basement window generally takes a few hours, assuming there are no structural issues you need to resolve first. If you’re a novice DIYer, the project could take longer; on the flip side, a licensed and trained window contractor may be able to replace multiple basement windows in the time it takes a homeowner to replace one.

The Seaford, DE 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.