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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 rate90%
139 neighbors recently requested a quote
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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 time3 hrs
203 neighbors recently requested a quote
Recommended by97%of homeowners
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Avatar for Infinity Exteriors, LLC
Infinity Exteriors, LLC
4.9(
21
)

Serving Cortland, IL and surrounding areas

Approved (Corporate)

In business since 1997

Free estimates

Warranties offered

"I have requested couple of different quotes to replace the roof on my garage. I decided to go with Infinity Exteriors. Logan Rezash worked with me who gave me the best deal. He was very professional and easy to talk to and explained in full details what they will provide me with my project. The materials and the warranty on the project that works for my budget. They kept me informed of the status of the project from the start to the finish. Their team that worked on the job was very polite and fast. They did an excellent job. They cleaned the yard and twice doubled checked for any loose nails around the garage. If you have a project to be done, I would recommend Infinity for your project. Dragica Miladinovic"
LP SmartSide
LP SmartSide
LP SmartSide
LP SmartSide
LP SmartSide

+16

Response time5 days
29 neighbors recently requested a quote
Recommended by95%of homeowners
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Avatar for Home Genius Exteriors
Home Genius Exteriors
4.8(
311
)

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."
320 neighbors recently requested a quote
Recommended by76%of homeowners
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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 Allied Construction and Roofing, LLC
Allied Construction and Roofing, LLC
3.5(
207
)

Serving Cortland, IL and surrounding areas

Approved

In business since 2016

Free estimates

Emergency services offered

"We had a really bad wind storm that damaged my roof, he was prompt courteous and did a great job repairing the roof in a timely manner. I would certainly use him again."
tear off
tear off
tear off
new roof
new roof

+41

Response time2 days
92 neighbors recently requested a quote
Recommended by85%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
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Showing 1-10 of 135
Roofing questions, answered by experts

Roof blistering and hail damage are different in their physical appearance. Blistering, often caused by inadequate ventilation, low-quality material, and improper installation, looks like large, irregular bubbles popping out of your roof. Meanwhile, hail damage is usually circular or oval dents entering your roof and often follows the same path as the hail storm.

The proper specifications for furring strips can vary, so you should always consult the roofing manufacturer's guidelines or your roofer. However, general recommendations are as follows:

  • Thickness: Furring strips are typically 1 to 1-1/2 inches thick, meaning standard 1-by or 2-by lumber works well. In areas with extreme winds, a thinner strip may be preferred to limit how much air can get under the roof and cause uplift. A thicker strip can add slightly more insulation but will also increase installation costs.

  • Spacing: The recommended spacing for furring strips is between 12 and 24 inches apart on center. Proper spacing is crucial for ensuring good airflow, adequate drainage, noise reduction, and better energy efficiency. The ideal spacing can depend on the roof's pitch and the specific type of metal roofing being installed.

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.

Manufacturers, insurance companies, and municipality regulations are phasing out three-tab shingles. Because of their short lifespan and lack of durability compared to other roofing material types, manufacturers are leaning toward better products, and cities and insurers are starting to require better building materials overall. However, 3-tab shingles are still for sale, and some roofing companies still install them.

There is a weight limit for walking on a roof, but it’s determined by your roof structure and not the roofing material, at least in the case of a metal roof. Consider that entire teams of roofers will be on top of your home during the installation, so the weight of a single person won’t compromise your roof. That isn’t the case for something like a tile roof, so a high weight limit is one benefit of a metal roof.

The Cortland, IL homeowners’ guide to roofing services

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