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

Avatar for Dalet Doors
Dalet Doors
5.0(
8
)
Doors (Exterior) - Install or ReplaceDoors (Interior) - Install or ReplaceSliding Door - Install+1 more

Serving Bertha, MN and surrounding areas

Approved

Free estimates

Warranties offered

"Dalet Doors built us a 12x12 deck with a landing pad and two ramps. Erik and Zac did a great job and were really helpful with the design and figuring out what would work best for us. Everything turned out great and we?re very happy with the finished deck. They were easy to work with, did quality work, and provided great customer service. Would definitely recommend them!"
Double Patio Door Install
Front Double Door install
Larson Platinum Security Screen
Front Entry Door
1 neighbors recently requested a quote
Avatar for Mad City Windows & Baths
Mad City Windows & Baths
4.4(
838
)
New Windows - 6 +New Windows - 3-5New Windows - 2

Serving Bertha, MN and surrounding areas

Approved

Super Service Award Winner

In business since 2001

Free estimates

Warranties offered

"This company has excellent windows, doors, and service. The installers did a fantastic job with installation and clean up. I would highly recommend this company to anyone!"
windows
siding
siding
siding
windows

+20

Response time10 mins
7560 neighbors recently requested a quote
Recommended by89%of homeowners
Avatar for American Waterworks
American Waterworks
4.5(
173
)
Egress Window - InstallWindow Well Covers - Install or Repair

Serving Bertha, MN and surrounding areas

Approved

In business since 1989

Free estimates

Warranties offered

"Don't need to know anything. The workmen will answer any questions eagerly. My project was not major (level my personal front sidewalk from the City's to my door) and only took 1 hour. These guys said they can work several projects a day, but some things like lifting and doing substantial things like driveways will take most of the day."
Another Sinking Floor
Dirt Crawlspace in Elk Mound, WI
Concrete stoop had sunk over 6 inches
Foundation Failure Signs
Increased Efficiency of Crawlspace in Elk Mound

+156

Response time4 hrs
476 neighbors recently requested a quote
Recommended by91%of homeowners
Charles Christensen Jr. Construction
4.4(
21
)
Doors (Exterior) - Install or ReplaceDoors (Interior) - Install or ReplaceStorm Door - Install

Serving Bertha, MN and surrounding areas

Approved

In business since 2010

Free estimates

Customers say: Quality work

"Besides the unforeseen delays with this project it was done when time permitted as we were not in a big hurry. Quality is great and now can enjoy the deck."
Response time2 days
6 neighbors recently requested a quote
Recommended by90%of homeowners
Avatar for DaBella - Fargo (Roofing/Windows)
DaBella - Fargo (Roofing/Windows)
3.5(
865
)
New Windows - 3-5New Windows - 6 +

Serving Bertha, MN and surrounding areas

Approved (Corporate)

In business since 2011

Free estimates

Warranties offered

"Alessandra Reynolds, was 100% helpful for helping us to get the new windows that we need looking forward to speaking with her again and our new windows she went through a lot to get our price we could afford"
Baths
Baths
Baths
windows
windows

+14

7 neighbors recently requested a quote
Recommended by87%of homeowners
Avatar for Mad City Windows & Bath - Roseville, MN
Mad City Windows & Bath - Roseville, MN
New to Angi
New Windows - 2New Windows - 3-5

Serving Bertha, MN and surrounding areas

Approved

In business since 2001

Free estimates

Warranties offered

To learn about Mad City Windows and its history, you need to start back in 1998 when our family-owned company first opened its doors and changed the face of home remodeling in Wisconsin. From the beginning, our business has been built on a foundation of friendship and trust and, in return, local homeowners have come to know they can place their trust in us. In order make certain that we consistently earn that trust, we are dedicated to ensuring the expert, seamless delivery of high-quality products and remodeling solutions to homeowners throughout our service area. \n \nToday, we expand our home remodeling expertise across Wisconsin, Minnesota, Iowa and Illinois. With over 50,000 completed projects, we take our 2+ decades of experience to serve the communities of Minnesota, Iowa and Illinois. They can expect our highest standard of service and professionalism.

Testimonial Letter(s)
Home Exterior + Bath
Home Exterior + Bath
Home Exterior + Bath
Home Exterior + Bath

+19

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Window Door Contractors FAQs, answered by experts

Most window screens last for about 10 to 12 years, assuming they are made from quality materials and receive proper care. The lifespan of common materials like fiberglass and aluminum can vary based on weather exposure, as constant sun or harsh winters can accelerate wear and tear. Regular cleaning and basic maintenance can help extend their life. Signs that a screen needs to be replaced include rips, tears, brittle or sagging material, fading, or a bent frame. While small tears can often be repaired, larger areas of damage typically mean it's time to replace the entire screen.

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.

Professionals clean window screens the same way a homeowner can—by removing the screens and cleaning them with a sponge. A window cleaning pro may come with better equipment, like a high powered wet/dry vacuum or pressure washer to speed up the process and achieve a deeper clean.

There are a number of ways to secure windows. You can add motion detectors or window sensors to detect movement and impact or change the window locks to make them stronger. Some of the ways you can secure windows are much like how you secure a home: closing the curtains at night and setting up security cameras outside so you can monitor your property even in your absence. 

The average cost to screen-in your patio ranges from $2,000 to $4,000. How much you spend depends on the size of your patio, the materials used, and construction complexity. Some patio screen room kits are easy to DIY, but you may need to hire a local screened-in porch builder and obtain permits for more complex designs.

The Bertha, MN 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.