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Top-Rated Window pros in Alton - Updated Nov 2026

Avatar for Mad City Windows & Baths
Mad City Windows & Baths
4.4(
838
)
New Windows - 6 +New Windows - 3-5New Windows - 2

Serving Alton, IA and surrounding areas

Approved

Super Service Award Winner

In business since 2001

Free estimates

Warranties offered

"The installers were wonderful. Friendly, knowledgeable, fast and CLEAN! Youâ d barely know theyâ d been there!. And our sales person really helped us understand the best, but not most expensive windows for our house. If I need more windows they will be back!"
windows
siding
siding
siding
windows

+20

Response time10 mins
8110 neighbors recently requested a quote
Recommended by89%of homeowners
Custom Windows Plus
5.0(
5
)
New Windows - 2New Windows - 2 - For BusinessNew Windows - 3-5+3 more

Serving Alton, IA and surrounding areas

Approved

In business since 2005

Free estimates

Credit card accepted

"Andrea was great to work with and she wasn't pushy like a few others I got quotes from. She knew the product and was able to answer questions. Brett and Aurelio was great when they came to install the windows. They explained how the process was going to go and how long it should take. Great group of people and would highly recommend them."
Historical Building
Close up - Before
Close up - After
Windows
Sibley Home

+17

Response time1 day
Response rate88%
Recommended by100%of homeowners
Avatar for Crawford's Services LLC
Crawford's Services LLC
5.0(
13
)
Window Cleaning

Serving Alton, IA and surrounding areas

Approved

In business since 2024

Free estimates

Small jobs welcome

"Yes!!! They showed up on time. Worked very efficiently. Very nice people. We have already booked them for future window cleaning. Exceeded expectations 🙏"
Home in Spencer
Home in Spencer
After Photo
Before Photo
After

+2

Response time4 hrs
Response rate96%
Recommended by76%of homeowners
Avatar for Timeless Exteriors LLC
Timeless Exteriors LLC
5.0(
6
)
New Windows - 6 +New Windows - 3-5New Windows - 2 - For Business+6 more

Serving Alton, IA and surrounding areas

Approved

Super Service Award Winner

In business since 2023

Free estimates

Emergency services offered

Timeless Exteriors: Your local experts in high-quality siding and window solutions. ✨ We transform homes with energy-efficient, durable, and beautiful upgrades. From free estimates to flawless installations, we’re here to make your home stand out. Contact us today! #HomeImprovement #ExteriorUpgrades

Siding and Windows
Siding and Windows
Siding and Windows
Siding and Windows
Additional Photos

+3

Response time2 days
Response rate100%
12 neighbors recently requested a quote
Avatar for Your Home Improvement Company
Your Home Improvement Company
3.8(
251
)
New Windows - 6 +New Windows - 3-5

Serving Alton, IA and surrounding areas

Approved (Corporate)

In business since 2004

Free estimates

Warranties offered

"Replaced all windows and patio door. Did just what they said that they would do. Sent an update email every couple weeks while the windows were being constructed. Install went very smoothly. Only unexpected delay has been getting the city building inspector out here now that work has been completed."
Windows
Windows
Doors
Doors
Siding

+14

Response time2 hrs
80 neighbors recently requested a quote
Recommended by80%of homeowners
Avatar for Xtreme Xteriors, LLC
Xtreme Xteriors, LLC
3.3(
15
)
New Windows - 6 +New Windows - 3-5New Window - Single+2 more

Serving Alton, IA and surrounding areas

Approved

In business since 1998

Free estimates

Emergency services offered

"We had an exceptional experience with Xtreme Xteriors. We were able to do window replacement on our 1978 built home. They turned out great. After that project, we had them do a bathroom remodel for us. They replaced our old fiberglass tub with a nice new walk-in shower. They did everything start to finish!"
Egress window
4 season patio room with sky lights
Easy breeze room.
3 season patio room
4 season patio room

+19

Response time8 hrs
184 neighbors recently requested a quote
Recommended by55%of homeowners
Avatar for Mad City Windows & Bath - Sioux Falls
Mad City Windows & Bath - Sioux Falls
New to Angi
New Windows - 2New Windows - 3-5

Serving Alton, IA 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

+18

Avatar for Kevin Calderon
Kevin Calderon
4.5(
2
)
Door or Window Screens - Install or Repair

Serving Alton, IA and surrounding areas

Approved

Free estimates

Credit card accepted

Offers commercial services

We pride our company on reliability, great communication, integrity, and \nquality work. We are experts in our trade and will do our best to keep you \nas educated as we can on your particular task or project. We look forward \nto earning your business! Book with us online or feel free to give us a call \ntoday!

Garza porch
Garza porch
Garza porch
Garza porch
26 neighbors recently requested a quote
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Windows FAQs, answered by experts

There are several ways to reduce noise coming through your windows. You can seal gaps around the window frames with acoustic caulk or fresh weatherstripping to reduce noise and air leaks. Installing sound-dampening curtains, thick blinds, or shades can also help deaden sound vibrations. For an additional interior barrier, consider installing an acrylic or plexiglass sheet inside the window, which stifles sound while still allowing for outdoor views. Another strategy is to add external barriers, like dense shrubbery or a sturdy fence, to block neighborhood noises. If these methods are not effective enough, it might be time to install new noise-canceling windows.

The best time to remove and restore old windows is during temperate weather. Late spring and the early onset of winter are ideal seasons. While summer has its challenges (e.g., bugs, heat, and dust), it’s also a good time to do restoration work. The worst time to restore old windows is during the winter, especially if it is particularly cold and snowy.

In most cases, it's worth it to install hurricane windows—especially if you live in an area prone to hurricanes and storms. Hurricane windows not only protect your windows from breaking but also protect the interior of your home from storm damage while also potentially reducing your homeowner's insurance premium. On top of that, hurricane windows have an ROI of 80% to 85%.

Most professionals can enlarge a window in five to 10 hours, depending on the window location, the exterior wall material, how easy it is to cut through it, and how much buildback you’ll need after the installation is complete. However, more complex projects can take two to three days from start to finish.

While plywood will keep winds and debris from shattering your windows from the outside, window film can help protect your windows from the inside. Window film can keep a window from shattering. If your windows break, the film can hold the shards of glass in place, reducing the risk of cuts.

While you may sometimes see window film marketed as "hurricane window film," note that it doesn't provide sufficient hurricane protection on its own. It's no substitute for plywood, storm windows, or hurricane shutters.

The Alton, IA homeowners’ guide to window services

From average costs to expert advice, get all the answers you need to get your job done.