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WI License 092101030 – DC
MN License BC787845
Fully Licensed and Insured

Local Window Installation and Replacement in Wisconsin and Minnesota

Windows in Wisconsin and Minnesota take a beating. Brutal cold, ice buildup, and wide temperature swings can quickly push low-quality installations to failure. As GAF-certified contractors and approved installers of Marvin, Andersen, and Pella windows, Krumm Exteriors brings nearly 30 years of Midwest experience to every window project.

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Midwest Weather Needs a Midwest Window Contractor

When you choose Krumm Exteriors for your window project, here is what you can count on:

Local knowledge: We work in Wisconsin and Minnesota climates every day. We know what window systems hold up here and which ones fall short when the temperatures drop.

Experienced and certified: As preferred partners with leading window manufacturers, we meet strict installation standards on every project. That means better performance, longer-lasting results, and warranty coverage you can actually rely on.

We answer the phone: You get a clear estimate, straight answers, and a local team that takes pride in the details. We stay in contact throughout the project and follow up after the job is done.

The Day One Difference New Windows Make

Windows do more for your home than most people realize. When they perform well, everything else does too:

  • Boosts Curb Appeal: New windows give your home a cleaner, more finished look from the street. It is one of the most noticeable exterior upgrades you can make.
  • Comfort in Every Season: Drafty windows make rooms feel cold in January and stuffy in July. Modern window systems seal tighter and insulate better, keeping your home comfortable all year long.
  • Lower Monthly Energy Bills: Today’s energy-efficient windows reduce heat transfer dramatically, which means your furnace and air conditioner work less and your utility bills reflect it.
  • A Quieter Home: Quality windows with proper glazing reduce outside noise, whether that is traffic, neighbors, or a Wisconsin snowplow at 6 a.m.
  • Added Home Value: Updated windows are a selling point that buyers notice. They signal that a home has been cared for and help justify asking prices when it is time to sell.
  • Ask About Energy Credits: The government is helping people make energy smart investments, see if you qualify here.

Expert Window Solutions for Your Midwest Home

Every home has different needs. A lake home on Balsam Lake faces different conditions than a Twin Cities colonial or a Hudson craftsman. We tailor every window recommendation to your home’s architecture, your goals, and your budget. 

Window Repairs

A failed seal, broken hardware, or damaged sash does not always mean a full replacement. Our contractors assess your windows honestly and repair what makes sense. Catching small problems early saves money and extends the life of an otherwise solid window system.

Window Replacement

When windows are beyond repair or simply past their prime, replacement is the smarter long-term investment. Our team removes old units carefully, inspects the surrounding structure, and installs new windows built for performance and durability in Midwest conditions.

Which Window Style Is Right for Your Home?

Not sure where to start? Here is a quick breakdown of the window styles and materials we install most: 

Best for versatility and ease of maintenance. Both sashes open and tilt inward for easy cleaning. A classic design that works well in almost any home style.

Best for maximum ventilation and clear views. Hinged on the side and opening outward, casement windows seal tightly when closed and are excellent for energy efficiency.

Best for homeowners who want great performance without the upkeep. If you want windows that look good, perform well, and never need painting or staining, vinyl is the practical choice.

Best for bringing in light and framing views. Fixed and non-opening, picture windows are one of the most energy-efficient options available and create a dramatic visual impact from inside and out.

Best for timeless character and natural warmth. Few materials match real wood for warmth, character, and the ability to paint or stain to any color.

Best for adding space and architectural character. These windows project outward from the wall, creating more interior room, panoramic sightlines, and serious curb appeal.

Best for ventilation in wet weather. Hinged at the top and opening outward, awning windows let fresh air in even during light rain.

Best for wide openings and easy operation. Horizontal sliders are simple to use, easy to clean, and work especially well in contemporary home styles.

Best for energy efficiency and a quieter home. Two panes of glass with an insulating air gap between them make a measurable difference in how your home holds heat and blocks outside noise.

Best for homeowners who want certified energy performance. Energy Star-rated windows meet strict federal efficiency standards, which means lower heating and cooling costs, fewer drafts, and a more consistent indoor temperature all year round.

Best for bringing the outdoors in. Garden windows extend outward from the wall, creating a bright, sheltered space perfect for herbs, plants, and natural light.

Best for unique spaces or architectural details. We work with manufacturers to fit windows that match your home's exact dimensions and design style.

How Our Window Installation Process Works

Here is how we take your windows from drafty and dated to stunning, efficient, and built for Midwest weather.

  1. Consultation and inspection: We assess your current windows, identify any performance or structural issues, and give you honest recommendations for repair or replacement.
  2. Custom planning and product selection: We walk you through your style and material options, discuss energy performance ratings, and provide a detailed, transparent estimate with no hidden costs.
  3. Professional installation: Our team installs your new windows with precision, following all Wisconsin and Minnesota building codes and manufacturer installation guidelines.
  4. Final walkthrough: We inspect every window, confirm smooth operation, and walk the finished project with you from the inside and out. We do not consider the job done until you do.
A sign with a thumbs-up icon and the word QUALITY on a dark background, above red text that reads STANDARD 20 YEAR GLASS.

Two Layers of Warranty Protection on Every Window

Your investment is protected on two fronts. Krumm Exteriors stands behind the quality of our installation work, and our manufacturing partners back their products with strong warranties covering glass performance, frames, and hardware. As preferred partners with leading window brands, including Marvin, Andersen, and Pella, we can offer extended warranty options that protect you longer than standard installations allow.

Window Project Spotlight

Custom Exterior Renovation in Hudson, WI

This standout Hudson home had Tudor-inspired architecture worth preserving, so every material decision was made to honor the original character while upgrading the performance. We replaced all windows with Marvin Elevate units, which delivered a refined, clean look that matched the home’s scale and style. Combined with LP SmartSide board and batten, staggered shakes, and updated soffits and fascia, the finished exterior balanced classic charm with the durability this Wisconsin climate demands.

Project Included: LP Smart Siding – Trim – Windows

Window FAQs

We offer window repair and full replacement services across Wisconsin and Minnesota. We work with a wide range of window styles, including double hung, casement, picture, bay, bow, awning, sliding, and custom configurations.

We have been serving Wisconsin and Minnesota homeowners since 1997. That's nearly 30 years of window installation experience across hundreds of residential projects in this region.

Yes. Krumm Exteriors is fully licensed and insured in both Wisconsin and Minnesota. We work with leading manufacturers and follow strict installation standards on every project.

Common signs include drafts around frames, condensation between glass panes, difficulty opening or closing, visible damage or rot, and noticeably higher heating and cooling costs. Our team can assess your windows and give you an honest recommendation.

Window costs depend on the style, material, glass package, and number of windows in your project. We provide detailed, transparent estimates during your consultation so you know exactly what you are paying for before any work begins.

Most residential window replacement projects are completed in one to two days. Larger projects or custom orders may take longer. We give you a realistic timeline during your consultation and keep you updated throughout the process.

We install windows from trusted manufacturers, including Marvin, Andersen, and Pella. During your consultation, we will help you select the right product for your home, your climate, and your budget.

Yes. Modern windows with Low-E glass coatings, insulated frames, and tight seals reduce heat transfer significantly. Most homeowners notice lower utility costs after replacing old single-pane or failed double-pane windows.

Krumm Exteriors warrants our installation workmanship, and the windows we install carry manufacturer warranties covering glass seal failure, frame performance, and hardware. Ask us about specific warranty details for your chosen product during your consultation.

For Midwest climates, we typically recommend double or triple-glazed windows with Low-E glass coatings and insulated frames. Casement windows are one of the best-performing styles in cold weather because they seal tighter than most other window types when closed. Our team will walk you through the best options for your specific situation during your consultation.

It depends on the age and condition of your current windows. If you are dealing with a single failed seal, broken hardware, or minor frame damage on an otherwise solid window, repair usually makes sense. If your windows are over 20 years old, showing widespread seal failure, significant rot, or consistently driving up your energy bills, replacement is almost always the smarter long-term investment. Our contractors will give you an honest assessment either way, with no pressure to go further than your situation actually requires.

We serve homeowners across Western Wisconsin, the Twin Cities metro area, and surrounding communities. Contact us to confirm we cover your location.

There might be, check this website to see if your work would qualify - or contact us!

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