Milwaukee Window and Door Replacements

Energy Efficiency Meets Beauty and Function

When it comes to your home, you shouldn’t have to choose between safety and beauty. Milwaukee window and door replacement is here to make things easier. We understand the importance of your home being safe and secure, yet beautiful and energy efficient. You don’t have to choose between one or another! Our professional contractors and installers will work with you to find the perfect solution for your Southeastern Wisconsin home.

  • Our windows are ENERGY STAR certified, so you can rest easy knowing you are using products that are efficient and good for the earth
  • Replacing windows is an excellent investment because they hold their value, contributing to lower energy costs for you in the time you own your home
  • We offer full-frame window replacement, which includes exterior trim, expertly fitted to your home
  • We can also do pocket replacement windows if your frame is in good shape and all you need is a more energy-efficient glass window
  • Wood, vinyl, aluminum, awning windows, and fiberglass options available

Safe and Beautiful

Door Replacement Solutions

Milwaukee Window & Door Replacements

Whether you are welcoming friends or family through your front door, you want it to be a symbol of welcoming and warmth. Our replacement doors are built to be beautiful, durable, energy efficient and to protect your loved ones.

  • We replace doors and the surrounding frame to make sure of an even, smooth fit that will help keep the elements out
  • We only use ENERGY STAR certified doors to ensure the best quality, and what’s best for our planet
  • A wide array of decorative, sliding doors, storm doors, and patio sliding doors are available
  • We have extensive experience with hard to fit doors, old homes as well as new builds
  • Master installers make sure that your door is installed correctly for maximum safety and security

Quality Replacement Windows

TightSeal specializes in made to order windows, custom crafted for your home. Our master installers will make sure that your window is a perfect fit because they’ve spent years fitting custom windows, no matter the size or shape of your windows.






Milwaukee's Window experts

we’ve been in the industry since 1991

29 years in business

We are committed to excellence. Our team always goes the extra mile to ensure our customers are happy. Our comprehensive approach to project management delivers amazing results.

we're Certified

We are certified with The National Association of Remodeling Industry and voted as one of the top 500 remodelers in the entire nation!

we're Trusted

Our team of professionals care. Our installers are careful and respectful. We treat your home as if it were our own.

2020 award winner

We were awarded the Guildmaster Award of 2020 for consistently delivering exceptional customer experiences. We have a over 90% recommendation rate!

we're insured

Rest easy knowing you're in good hands. Our company is fully insured and protected.

98.3% Customer rating

We have a 98.3% rating on GuildQuality, the satisfaction guide for home remodeling! We are committed to your satisfaction.


custom windows built for your home

When it’s time the replace the windows in your home, you can trust Southeastern Wisconsin’s window experts. We offer a wide variety of window options. Our windows are custom made and sure to fit your home’s unique needs. New windows are beautiful and functional. We offer a wide variety of energy efficient windows that are perfect for your Wisconsin home. Here are some of the most popular window designs!

casement window


slider window


Double Hung


bay window

Bay Window

bow window

Bow Window



American made

Our windows are proudly made in the U.S.A

TightSeal products are proudly made in America. 
Since 1991 the core of our company has been American craftsmanship and long-lasting quality. Our company stands by our products!

Our windows are meticulously assembled, painted and finished by hand. 


custom solutions

How does it happen?

Rotten and moldy  window frames are usually the result of moisture being allowed to come in contact with the window material. When moisture is allowed to repeatedly come into contact with the wood, the wood begins the rot and grow mold.

What does it mean?

Water damaged windows is a sign that your windows are no longer functioning as they should.

Can you always spot it?

Often times it’s impossible to tell your window frame is water damaged until the window is actually taken out. Even though you may not visually be able to spot rotting or mold, leaving rotten frames in your home poses a serious concern.

What is the best solution?

Replacing your windows with up-to-date and tightly sealed windows that will prevent condensation from forming in the future. A full-frame window replacement eliminates any water damage and will you give you peace of mind with its lifetime warranty. A full-frame replacement replaces all the water damaged components with a new frame and window. We specialize in full-frame replacements and believe it is the correct way to replace windows.

There are two types of window replacements:

  • Full-Frame Installation
  • Insert/Pocket Installation

A full-frame replacement is when the window and parts are completely removed and replaced. We recommend a full-frame replacement for the long-term, as it completely removes any water damaged material.

An insert or pocket installation is when the window is removed and then a new window is inserted into the old frame. The jamb, brickmould and other window components stay. We typically do not recommend an insert or pocket installation as the water damaged material will still exist. This means you may end up having to do another replacement in several years. With a full-frame window coming with a lifetime warranty, it makes more sense to do a full-frame install instead of putting a band-aid over the issue with an insert.



Are you suffering from rotten or moldy windows?

Contact the experts and
Get a FREE quote!

What causes it?

Depending on what type of window you have, the most common reason windows are difficult to open is due to dust and dirt build up. This happens mostly in double hung and single frame windows. Over time, dust, dirt and other debris builds up, causing friction as you try to open the window.

Does it make an unusual sound?

When you open the window does it rub, rattle or squeak? This can mean that the frame is not aligned properly or the components of the window may be damaged. Your window should open smoothly and silently!

What’s the best solution?

Depending on the type of window, you can attempt to thoroughly clean the window or inspect it for damage. Unless you know what to look for, it may be difficult to pinpoint what needs to be done. You may need to remove the window stash if you have a sliding to casement window. Check for loose or stopped screws and lubricate the hinges if necessary. Sometimes it may still be difficult to open after you’ve done all you can. Many times if you have an older home with its original windows, it may just be time to replace them with updated, easy to open windows. Outdated window styles like Jalousie or single pane windows are highly inefficient and should be replaced.



Are your windows making strange noises?

Contact the experts and
Get a FREE quote!


What causes drafty windows?


Window Seal Failure

This is one of the worst outcomes of seal failure. When the seal of your window breaks, the argon gas between the glass escapes. This can cause ice and water to form inside your windows, making it extremely energy inefficient. Window seals can break from wear and tear over time, poorly installed windows, excessive mold build-up or even extreme temperatures and the elements if the window is not of good quality.

Poorly Installed Windows

While we often like doing things ourselves, when it comes to your home it’s safest to trust an experienced professional. Often times when windows are not properly installed to industry standards, drafts will be felt coming into the home. This is because the window and frame does not properly fit the opening and gaps between the window frame let in air. A professional installer will know how to perfectly fit the window into the opening, preventing air from entering into your home.

Window Caulk Cracks

Caulk prevents drafts from getting into your home by sealing off the space where the frame meets the building. Cracks in the caulk is an easy way for outside air to enter your home.

Old Windows

Some windows are just not designed to withstand the brutal Midwest weather. Double or triple pane windows provide extra insulation for your home and act as an extra barrier between you and the elements. Many old windows are just made from a single pane of glass.

What’s the best solution?

Vinyl windows are an excellent option for Wisconsin homes. They are made specifically for harsh weather and climates in the Midwest. They are more durable than aluminum or wood windows. Vinyl windows have insulated frames and additional foam insulation that keeps drafts from entering through the frame. New replacement windows add extra insulation and adds a barrier of extra protection between your home and the elements.




Experiencing Drafty Windows?

Contact the experts and
Get a FREE quote!

Interior Condensation

Excess moisture in the form of water collecting in your home is concerning to you and your family’s health. Moisture creates the perfect breeding ground for mold and mildew. As a result, many people actually have allergic reactions to the mold and mildew. While this is problematic to your health, it is especially harmful for older people, young kids and people who have existing health conditions such asthma.




Experiencing Condensation in Your Windows?

Contact the experts and
Get a FREE quote!