Top-rated roofers.

Get matched with top roofers in Cortland, IL

Enter your zip and get matched with up to 5 pros

Need a pro for your roofing project in Cortland, IL?

Select your specific project to find the pro for you.

TRUSTED BY CORTLAND, IL HOMEOWNERS

  • Average homeowner rating star icon4.7
    Average homeowner rating
  • Verified reviews icon170
    Verified roofing services reviews

Verified Reviews for Roofing pros in Cortland, IL

*The Angi rating for Roofing companies in Cortland, IL is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Roofing needs.

*The HomeAdvisor rating for Roofing companies in Cortland, IL is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Roofing needs.

Last update on July 09, 2026

Find Roofers in Cortland

Avatar for Guardian Roofing Systems, LLC
Guardian Roofing Systems, LLC
4.9(
68
)

Serving Cortland, IL and surrounding areas

Approved

Super Service Award Winner

In business since 2010

Free estimates

Emergency services offered

"Angelo was helpful, thoughtful, and professional during the entire process. He explained everything thoroughly to make sure we knew what we were getting and communicated every step along the way. We wouldn't hesitate to call Guardian Roofing for any future roofing needs."
roof coating
new roof installation
decking
insulation
base sheet

+13

Response time2 days
Response rate89%
121 neighbors recently requested a quote
Request Quote
Avatar for Boss Roofing - Siding Experts, Inc.
Boss Roofing - Siding Experts, Inc.
4.8(
42
)

Serving Cortland, IL and surrounding areas

Approved (Corporate)

In business since 2005

Free estimates

Emergency services offered

"Boss Roofing is a quality company that provides excellent work ."
Free Roof Giveaway
Free Roof Giveaway
Asphalt Roofing
Asphalt Roof
Asphalt Roofing

+5

Response time4 hrs
192 neighbors recently requested a quote
Recommended by97%of homeowners
Request Quote
Avatar for Home Genius Exteriors
Home Genius Exteriors
4.8(
312
)

Serving Cortland, IL and surrounding areas

Approved

In business since 2004

Free estimates

Emergency services offered

"While removing the old roof, the aluminum coverings on our mansard roof dormers were damaged. The roofing crew attempted to repair the damage but the result was not satisfactory. As compensation they deducted a small amount from the total bill."
391 neighbors recently requested a quote
Recommended by76%of homeowners
Request Quote
Avatar for Home Genius Exteriors
Home Genius Exteriors
4.7(
268
)

Serving Cortland, IL and surrounding areas

Approved

In business since 2004

Free estimates

Emergency services offered

"While removing the old roof, the aluminum coverings on our mansard roof dormers were damaged. The roofing crew attempted to repair the damage but the result was not satisfactory. As compensation they deducted a small amount from the total bill."
2646 neighbors recently requested a quote
Recommended by87%of homeowners
Request Quote
Avatar for Nisley's Quality Coatings
Nisley's Quality Coatings
5.0(
17
)

Serving Cortland, IL and surrounding areas

Approved

In business since 2018

Free estimates

Customers say: Quick response

"I was a little skeptical about the gushing reviews, but I could not be happier. Super professional, great service and quality, new roof looks great, and at a competitive price."
Metal roof
Metal roof
Metal roof
Metal roof
Metal roof

+1

Response time2 days
Recommended by100%of homeowners
Request Quote
Avatar for J&K Home Improvement & Restoration
J&K Home Improvement & Restoration
5.0(
8
)

Serving Cortland, IL and surrounding areas

Approved

In business since 2005

Free estimates

Credit card accepted

"We have once again reached out to Joe Kim at J & K Home Improvements when we had a new project planned. We were completely satisfied when we replaced our siding and roof with Joe. Now Joe and his professional crew have replaced all our windows . There are never surprises or additions from when the job is quoted. Once again we are totally satisfied and delighted with their work!! It has been a stress free experience each and every time."
Roofing
Siding Job
GAF Shingles
Siding job site
Modifed Bituman

+2

Recommended by100%of homeowners
Request Quote
Avatar for NEW TECH GENERAL CONTRACTORS LLC
NEW TECH GENERAL CONTRACTORS LLC
5.0(
9
)

Serving Cortland, IL and surrounding areas

Approved

In business since 1995

Free estimates

Emergency services offered

"They did an absolutely amazing job building my deck. I love it! They do great work. I’ll have them do more work for me. I definitely recommend them. Thank you so much!"
Anderson
Anderson
Anderson
Lee Illinois
Lee Illinois

+25

Response time2 days
39 neighbors recently requested a quote
Request Quote
Avatar for Cenicero's Roofing, Inc.
Cenicero's Roofing, Inc.
5.0(
1
)

Serving Cortland, IL and surrounding areas

Approved

In business since 2019

Free estimates

Warranties offered

We are a locally owned and operated company that values honesty and integrity and treats your home as if it were our own. We have many years of experience to give you confidence that we are your number one choice for your next home project. You will find us to be competitively priced with close attention to the details. We look forward to building a lasting relationship and guarantee your satisfaction!

Recent Projects
Recent Projects
Recent Projects
Recent Projects
Recent Projects

+110

Response time4 days
Recommended by100%of homeowners
Request Quote
...
Showing 1-10 of 134
Roofing questions, answered by experts

Yes, shingle brand can affect bundle sizes, with some brands weighing more than others and having slightly differing numbers of shingles.

Architectural shingles typically last between 20 and 30 years, though most homeowners should plan on replacing them every 20 to 25 years. While some manufacturers offer warranties for 30 to 50 years, especially for extreme weather, achieving such a long lifespan is rare. The actual lifespan can be shorter in areas prone to strong winds, hailstorms, or other extreme weather. It is recommended to replace your roof before it reaches the end of its life to reduce the risk of roof failure, leaks, and costly property damage. Scheduling regular roof inspections will help you determine your roof's remaining life and identify the best timeline for replacement.

No, you can’t use your home’s square footage. You have to calculate your roof’s square footage, and then you may have to convert your square footage measurement to correspond with how the roofing material is measured. For instance, some roofing is sold in “squares,” which equals the total square footage of the roof divided by 100. Shingles are sold in bundles that may not correspond to the number of squares you need. Metal roofing is sold as sheets, so determine the amount of square feet each panel will cover and then divide the total square footage by the coverage area.

No, you do not need gable vents if you have a ridge vent. In fact, gable vents would actually interrupt the process that ridge vents are set to conduct. You would be better off to decide between the two depending on your home’s needs.

Pea-sized hail can damage a roof if it experiences hailstorms often, as it slowly causes cracks and deterioration to your shingles. Usually, one hailstorm with pea-sized hail won’t damage your roof, but if you see other damage to your car, grill, and other property, it may be worthwhile to get in touch with your insurance company and have a local roofer come out for an inspection.

The Cortland, IL homeowners’ guide to roofing services

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

See all articles