WHAT IS THE BEST WAY TO COMPARE WINDOWS?

The only accurate method to compare windows is to look at the NFRC rating for each one you are thinking about. NFRC labels that have received independent accreditation rate the general window performance using the U-Factor and Solar Heat Gain Coefficient (SHGC). The lower these ratings are, the better the window will perform. U-Factor or SHGC should be prioritized based on your climate. Regardless of the sales pitch, you should choose the NFRC ratings that are optimal for your environment and your financial situation.

Does The Window Store install ENERGY STAR® windows and patio doors?

Yes – Any window or patio door ordered with a Low E glass upgrade must meet the ENERGY STAR® standards for the climate zone. This promise is always offered in writing on your contract paperwork to ensure that you order and receive the best Low E glass that is suited to your particular temperature zone.

Are there tax credits available when replacing windows and doors?

With our ENERGY STAR® products — yes! A 10% federal tax credit worth up to $200 for windows and $500 for patio doors that adhere to ENERGY STAR® standards may be available to you. These tax credits were set to expire in 2011, however a new law called "The American Taxpayer Relief Act of 2022" extended them into 2023 and retroactively to 2022.

How can The Window Source be so much more affordable than their competitors?

The Window Source can provide you with high-quality vinyl windows at a very affordable price because of our wide national purchasing power. Our low pricing and straightforward purchase procedure also enable us to operate at a high level of efficiency and pass the savings on to you.

Is the installation process as important as the window product itself?

A window needs to be accurately measured to suit the opening and leave space for plumbing and squaring the new window. No matter how high the quality of the new window, if it is not squared and correctly plumbed, it will not seal and function well.

Door Installation in Mankato, MN | Entry Doors and Patio Doors

Need a new front door or a sliding patio door for your Mankato home? The Window Source of Mankato is your local door installer in Mankato, MN, offering professional installation of entry doors and patio doors throughout South Central Minnesota. Whether you need a brand new custom entry door or want to replace an old sliding glass door, we handle every job from estimate to final walkthrough.We are a locally owned and operated door installation company based in Mankato. Our own crew handles every installation. Every door we install is backed by our Lifetime Warranty.

Our Door Installation Services

We install two primary door types for Mankato homeowners: custom entry doors and sliding patio doors. Both are available in a wide range of sizes, styles, materials, and finishes to match any home.

Sliding Patio Doors

Entry Doors

Custom Entry Doors for Mankato Homes

Your front door says a lot about your home. A new custom entry door improves curb appeal, security, and energy efficiency all at once. The Window Source of Mankato installs ProVia entry doors, one of the most trusted names in residential exterior door installation in the industry.

Steel Entry Doors

Our steel entry doors are built to handle the demands of Minnesota winters. They are foam-filled for energy efficiency, extremely strong, and provide excellent security against forced entry. Steel front door installation is typically more affordable than fiberglass and is an excellent choice for homeowners who prioritize security and value.

Fiberglass Entry Doors

Our fiberglass entry doors will not warp, rot, rust, or absorb moisture the way wood doors can. They look like real wood without the maintenance, and they hold up exceptionally well through Mankato’s freeze-thaw cycles. If you want a premium, low-maintenance front door replacement in Mankato, fiberglass is the right choice.

Security and Storm Doors

Looking for a security door installation near Mankato? We can add a storm door or security screen door to your existing entry door for extra protection and insulation. Storm doors extend the life of your main entry door and improve energy efficiency during Minnesota winters.

Why Choose The Window Source of Mankato for Door Installation?

There are plenty of contractors who will install a door. Here is what makes us the right choice for your Mankato door replacement:

Local and Personal: We are based in Mankato at 627 S Front St. We are your neighbors. When you call, you reach us directly, not a call center.
Lifetime Warranty: Every door we install comes with a Lifetime Warranty on the product and our own workmanship guarantee. If something fails, we fix it.
Our Own Crew: We do not use subcontractors. Our own trained installation crew handles every door installation from start to finish.
A+ BBB Rating: We are BBB Accredited with an A+ Rating. Our local reputation matters to us and is backed up by our customers.
Free No-Obligation Estimate: We visit your home, measure the opening, walk you through your options, and give you a clear price upfront. No surprises.

Frequently Asked Questions About Door Installation in Mankato

Do you install both entry doors and patio doors in Mankato?

Yes. We install custom entry doors including steel and fiberglass front doors, and sliding patio doors in a range of panel configurations. We also offer storm door installation. Call to discuss what you need.

How long does door installation take?

Most single door replacements are completed in one day. Our crew arrives, removes the old door, installs the new custom unit, seals the frame, and tests all hardware before leaving. Larger projects like double doors or multiple installations may take longer.

Do your doors come with a warranty?

Yes. Every door we install comes with a Lifetime Warranty on the product and our own workmanship guarantee. If anything fails, we make it right.

Do you install security doors or storm doors in Mankato?

Yes. We can add a storm door or security door to your existing entry door. Storm doors protect your main entry door from Minnesota weather and improve insulation. Call us to discuss options for your home.

Do you serve New Ulm, St. Peter, Waseca, and other cities near Mankato?

Yes. We serve homeowners throughout South Central Minnesota including New Ulm, St. Peter, Waseca, Albert Lea, Faribault, and many more communities. Call 507-720-0722 to confirm your location.