Top-rated window pros.

Get matched with top window pros in Cortland, IL

Enter your zip and get matched with up to 5 pros

Need a pro for your window service project in Cortland, IL?

Select your specific project to find the pro for you.

TRUSTED BY CORTLAND, IL HOMEOWNERS

  • Average homeowner rating star icon4
    Average homeowner rating
  • Verified reviews icon43
    Verified window services reviews

Find Window pros in Cortland

Avatar for Window Concepts

Window Concepts

4.45(
73
)
Approved Pro

Window Concepts

4.45(
73
)
Approved Pro
Customers say: Super punctual
54 local quotes requested
43 years of experience

Since 1982, Window Concepts has been helping homeowners make their houses more beautiful, comfortable, and energy-efficient. Led by Brian Murphy, our family-owned company is built on trust, quality, and customer care. From the very first conversation to the final installation, our friendly team is with you every step of the way — helping you choose the best windows, doors, siding, or roofing for your home and budget. We take pride in our attention to detail, cleanliness, and top-notch service, treating your home like it’s our own. With over 40 years of experience, we continue to offer the latest products and technology to keep your home looking its best — and performing at its best — for years to come.

"Our home is 85 years old and was in need of extensive renovations. We chose Window Concepts for our windows, roofing, and siding, and they did an outstanding job! Garrett provided a wide range of samples and made the entire process smooth and convenient. My wife and I highly recommend this family-owned company—they truly stand out! Their customer service is also exceptional and very accessible; 10/10 experience!"

Sean G on November 2024

Since 1982, Window Concepts has been helping homeowners make their houses more beautiful, comfortable, and energy-efficient. Led by Brian Murphy, our family-owned company is built on trust, quality, and customer care. From the very first conversation to the final installation, our friendly team is with you every step of the way — helping you choose the best windows, doors, siding, or roofing for your home and budget. We take pride in our attention to detail, cleanliness, and top-notch service, treating your home like it’s our own. With over 40 years of experience, we continue to offer the latest products and technology to keep your home looking its best — and performing at its best — for years to come.

"Our home is 85 years old and was in need of extensive renovations. We chose Window Concepts for our windows, roofing, and siding, and they did an outstanding job! Garrett provided a wide range of samples and made the entire process smooth and convenient. My wife and I highly recommend this family-owned company—they truly stand out! Their customer service is also exceptional and very accessible; 10/10 experience!"

Sean G on November 2024


VELUX America

New on AngiNew on Angi
Approved Pro

VELUX America

New on AngiNew on Angi
Approved Pro
543 local quotes requested

Start with skylights! At VELUX, our mission is clear: we're dedicated to transforming your space with natural light and fresh air with skylights. Whether you're looking to replace old skylights or install brand-new ones, we will guide you every step of the way. Why Choose VELUX? =================== When it comes to skylights and roof windows, VELUX is the global leader. Here's why you should trust us to transform your home: 1. Innovation and Quality: VELUX skylights are renowned for their innovation and unmatched quality. They're designed to let in abundant natural light while keeping your space leak-free and energy-efficient. 2. Huge Product Selection: You’ll have access to a wide range of skylight options, from fixed to vented skylights. And we are here to help tailor the selection to suit your specific needs and style preferences. 3. Expertise: We take pride in what we do at VELUX, and our team is highly trained to guide you through the entire process. From selecting the perfect product for your space to providing valuable recommendations, we're committed to making sure your skylight project is a complete success. 4. Professional Installation Partners: We don't stop at product selection and recommendations; we also match you with a VELUX-trained installer who will handle the installation of your skylights with precision and expertise.

Start with skylights! At VELUX, our mission is clear: we're dedicated to transforming your space with natural light and fresh air with skylights. Whether you're looking to replace old skylights or install brand-new ones, we will guide you every step of the way. Why Choose VELUX? =================== When it comes to skylights and roof windows, VELUX is the global leader. Here's why you should trust us to transform your home: 1. Innovation and Quality: VELUX skylights are renowned for their innovation and unmatched quality. They're designed to let in abundant natural light while keeping your space leak-free and energy-efficient. 2. Huge Product Selection: You’ll have access to a wide range of skylight options, from fixed to vented skylights. And we are here to help tailor the selection to suit your specific needs and style preferences. 3. Expertise: We take pride in what we do at VELUX, and our team is highly trained to guide you through the entire process. From selecting the perfect product for your space to providing valuable recommendations, we're committed to making sure your skylight project is a complete success. 4. Professional Installation Partners: We don't stop at product selection and recommendations; we also match you with a VELUX-trained installer who will handle the installation of your skylights with precision and expertise.


"Did not start yet will be in November "

Gisele S on October 2025

Replacement Window Installation, Replacement Patio Door Installation, Replacement Entry Door Installation

"Did not start yet will be in November "

Gisele S on October 2025


Avatar for Jack's Roofing & Siding, LLC

Jack's Roofing & Siding, LLC

5.00(
1
)
Approved Pro

Jack's Roofing & Siding, LLC

5.00(
1
)
Approved Pro
6 years of experience
Free onsite estimate

We are a locally owned and operated company that values honesty and integrity and treats your home improvement project as if it were our own. We offer a wide range of roofing expertise and experience to meet the specific needs of our clients. We specialize in a variety of roofing, to include asphalt shingle, traditional tile, natural slate, flat, foam, or single-ply. We pride ourselves on the quality of our work as well as our commitment to outstanding results. We look forward to building lasting relationships and guarantee your satisfaction!

We are a locally owned and operated company that values honesty and integrity and treats your home improvement project as if it were our own. We offer a wide range of roofing expertise and experience to meet the specific needs of our clients. We specialize in a variety of roofing, to include asphalt shingle, traditional tile, natural slate, flat, foam, or single-ply. We pride ourselves on the quality of our work as well as our commitment to outstanding results. We look forward to building lasting relationships and guarantee your satisfaction!


""

Phyllis L on December 2019

Windo-Well Cover Company, is committed to providing the highest form of customer service and customer satisfaction in the custom made window well cover industry. Please call for your personal consultation.

""

Phyllis L on December 2019


Avatar for Infinity Home Improvement, Inc.

Infinity Home Improvement, Inc.

3.65(
317
)
Approved Pro

Infinity Home Improvement, Inc.

3.65(
317
)
Approved Pro
369 local quotes requested
25 years of experience

At Infinity Home Improvement, we're passionate about creating beautiful, functional spaces that reflect your unique style and needs. We're a family-owned company with over 24 years of experience in the home improvement industry, and we pride ourselves on the quality of our work, our employees, and the products we install. We offer a wide range of services to help you improve your home, including: Gutter Helmet: The original and still the best gutter protection system on the market, Gutter Helmet keeps your gutters free of leaves, debris, and pests, so you can say goodbye to climbing ladders and cleaning gutters forever. Betterliving Sunrooms: Add extra space, light, and value to your home with a beautiful sunroom from Betterliving. Our sunrooms are custom-designed and built to last, and they come in a variety of styles to complement your home's architecture.

"Saundra, James, Jim, Johnny and Eltina did a great job, great installation. Very happy. "

Michael R on November 2025

At Infinity Home Improvement, we're passionate about creating beautiful, functional spaces that reflect your unique style and needs. We're a family-owned company with over 24 years of experience in the home improvement industry, and we pride ourselves on the quality of our work, our employees, and the products we install. We offer a wide range of services to help you improve your home, including: Gutter Helmet: The original and still the best gutter protection system on the market, Gutter Helmet keeps your gutters free of leaves, debris, and pests, so you can say goodbye to climbing ladders and cleaning gutters forever. Betterliving Sunrooms: Add extra space, light, and value to your home with a beautiful sunroom from Betterliving. Our sunrooms are custom-designed and built to last, and they come in a variety of styles to complement your home's architecture.

"Saundra, James, Jim, Johnny and Eltina did a great job, great installation. Very happy. "

Michael R on November 2025


Avatar for Best Solutions Basement Repairs & Waterproofing

Best Solutions Basement Repairs & Waterproofing

5.00(
5
)
Approved Pro

Best Solutions Basement Repairs & Waterproofing

5.00(
5
)
Approved Pro
25 local quotes requested
3 years of experience

We take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumer's needs. It is our mission to provide excellent workmanship and complete customer satisfaction from start to completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job.

We take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumer's needs. It is our mission to provide excellent workmanship and complete customer satisfaction from start to completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job.


Avatar for Dickey Masonry LLC

Dickey Masonry LLC

No reviews yet

Dickey Masonry LLC

No reviews yet
1 years of experience

We are a full service masonry restoration and consultancy business servicing all masonry structures. We take pride in the relationships we have developed with our customers based on trust, performance, and education. The more understanding we can provide to a customer regarding their conditions and options moving forward, the better prepared they can be to make the best decision possible for their building. Our attention to detail, thorough communication, expert craftsmen, and industry leading warranties are what sets us apart from the competition. From structural repairs to simple but effective life extending maintenance, we will ensure that your building and reputation are well protected. Consultations are free! Our Services Include: Condition Assessment Leak Detection Tuckpointing Brick - Block - Stone Waterproofing Chemical Cleaning Chimneys Parapet Maintenance & Repair Terra Cotta & GFRC Lintel Replacement Budgets & Planning Concrete Insurance Claims Caulking & Sealants Balcony Repairs Structural Repair Windows/Doors Cladding

We are a full service masonry restoration and consultancy business servicing all masonry structures. We take pride in the relationships we have developed with our customers based on trust, performance, and education. The more understanding we can provide to a customer regarding their conditions and options moving forward, the better prepared they can be to make the best decision possible for their building. Our attention to detail, thorough communication, expert craftsmen, and industry leading warranties are what sets us apart from the competition. From structural repairs to simple but effective life extending maintenance, we will ensure that your building and reputation are well protected. Consultations are free! Our Services Include: Condition Assessment Leak Detection Tuckpointing Brick - Block - Stone Waterproofing Chemical Cleaning Chimneys Parapet Maintenance & Repair Terra Cotta & GFRC Lintel Replacement Budgets & Planning Concrete Insurance Claims Caulking & Sealants Balcony Repairs Structural Repair Windows/Doors Cladding


"Great company to hire! Strongly recommend!"

Ben M on August 2024

We specialize in bringing your visions to life. Paying attention to every detail is our goal, we don't cut corners, we perform each step on a clients house as its our own!

"Great company to hire! Strongly recommend!"

Ben M on August 2024


Avatar for Schultzwoodworking LLC

Schultzwoodworking LLC

No reviews yet

Schultzwoodworking LLC

No reviews yet

We specialize in remodeling and new construction. We do good quality work in a reasonable time frame, we can make any dream you have come to life! we are a small construction company with a few employees

We specialize in remodeling and new construction. We do good quality work in a reasonable time frame, we can make any dream you have come to life! we are a small construction company with a few employees

...
Showing 1-10 of 140
Windows questions, answered by experts

In most cases, you should get your windows cleaned one to two times annually, although you might want to complete this task more often if you live in an area with heavy pollen or heavy rain or snowfall that soils your windows. It’s also a good idea to hire a professional window cleaning service if you’re listing your property, as sparkling windows will make a big difference in terms of curb appeal and, potentially, your home’s value.

Mulled windows are often more expensive than standalone windows. However, this is mostly because mulled windows tend to be larger than standard windows, meaning they require more materials and labor to manufacture and install, both of which drive up the cost. If mulled windows take up the same square footage as separate windows, they should cost about the same unless you need to reinforce your exterior wall to support the larger wall opening.

Typically, window installation takes 1-2 hours each, though this can stretch with custom sizes or complex window types.

In some cases, you might need a permit for a window replacement, which is hard to get if you’re not a professional contractor. You should probably just hire a window replacement company in the first place because the job is complicated and can be dangerous for the average DIYer. You may not even save any money doing it yourself because contractors purchase materials wholesale.

Basements are generally required to have windows for your safety. At a minimum, windows should provide an egress in the event of a fire. But basement windows do more than offer a way out; basement windows also offer natural light and ventilation in an area of your home that is otherwise dark and musty.

The Cortland, IL homeowners’ guide to window services

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