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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
)
Flat, Foam or Single Ply Roofing - RepairFlat, Foam or Single Ply Roofing - Repair- For Business

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 rate91%
105 neighbors recently requested a quote
Request Quote
Avatar for Rogers Roofing
Rogers Roofing
4.6(
131
)
Asphalt Shingle Roofing - Install or ReplaceAsphalt Shingle Roofing - RepairInspection - Roofing

Serving Cortland, IL and surrounding areas

Approved

In business since 1968

Free estimates

Warranties offered

"New roof and gutters...so far, so good...."
Roofing Project
Roofing Project
Roofing Project
Roofing Project
Roofing Project

+7

582 neighbors recently requested a quote
Recommended by84%of homeowners
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Avatar for Boss Roofing - Siding Experts, Inc.
Boss Roofing - Siding Experts, Inc.
4.8(
42
)
Asphalt Shingle Roofing - Install or ReplaceMetal Roofing - Install or Replace

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
185 neighbors recently requested a quote
Recommended by97%of homeowners
Request Quote
Avatar for Home Genius Exteriors
Home Genius Exteriors
4.7(
269
)
Asphalt Shingle Roofing - RepairInspection - RoofingFlat, Foam or Single Ply Roofing - Repair+4 more

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."
2655 neighbors recently requested a quote
Recommended by86%of homeowners
Request Quote
Avatar for Home Genius Exteriors
Home Genius Exteriors
4.8(
314
)
Asphalt Shingle Roofing - Install or ReplaceMetal Roofing - Install or ReplaceWood Shake or Composite Roofing - Install or Replace+2 more

Serving Cortland, IL and surrounding areas

Approved

In business since 2004

Free estimates

Emergency services offered

"It was easy to work with home genius. They were very punctual and responded well to every question. The crew worked very efficiently and finished the roof in less than a day. Over all love the new roof."
356 neighbors recently requested a quote
Recommended by75%of homeowners
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Avatar for ONESOURCE ROOFING CONTRACTORS & CONSULTING LLC
ONESOURCE ROOFING CONTRACTORS & CONSULTING LLC
4.4(
7
)
Asphalt Shingle Roofing - Install or Replace - For BusinessFlat, Foam, or Single Ply Roofing - Install or Replace- For BusinessSealant for Roof - Apply- For Business+9 more

Serving Cortland, IL and surrounding areas

Approved

In business since 2000

Free estimates

Emergency services offered

"I've hired OneSource for a variety of repairs and replacement project of all kinds, including flat and shingle roofing. They are the best! Timely, good communication, and their team is fantastic to work with. I would absolutely recommend working with them!"
Photo 1
EPDM Roof - Apartment
EPDM Roof - Apartment
EPDM Roof - Apartment
EPDM Roof - Apartment

+68

4 neighbors recently requested a quote
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Avatar for Nisley's Quality Coatings
Nisley's Quality Coatings
5.0(
17
)
Flat, Foam or Single Ply Roofing - RepairFlat, Foam or Single Ply Roofing - Repair- For BusinessFlat, Foam, or Single Ply Roofing - Install or Replace+5 more

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
)
Asphalt Shingle Roofing - Install or ReplaceAsphalt Shingle Roofing - Install or Replace - For BusinessFlat, Foam, or Single Ply Roofing - Install or Replace+5 more

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
)
Asphalt Shingle Roofing - Install or ReplaceAsphalt Shingle Roofing - RepairFlat, Foam or Single Ply Roofing - Repair+1 more

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 time3 days
Response rate93%
37 neighbors recently requested a quote
Request Quote
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Showing 1-10 of 137
Roofing questions, answered by experts

A properly installed, high-quality tarp can be left on a roof for up to 90 days. However, this is only a temporary measure and not a substitute for proper roof repair or replacement. Thinner tarps or those exposed to heavy wind and rain may not last the full 90 days, so it's important to monitor the tarp's condition to ensure it continues to protect your roof from the elements.

Replacing older chimneys or fireplaces, like wood-burning stoves, with something more eco-friendly can actually increase the value of your home. Some homeowners opt to remove chimneys as they pursue LEED certification, which may also increase the value of your home. But in general, many potential buyers actually look for operational fireplaces in homes, so removing a chimney and fireplace could decrease your home’s value by up to $5,000.

You can install a spray foam roof over shingles, but it may compromise the roof’s protective qualities or shorten its lifespan. Before installing a new roof, ask a qualified roofer if your existing roof needs to be removed before installing a spray foam roof so you ensure your home has quality, long-lasting protection. 

Generally, the term “rolled roofing” refers to MSR (mineral surface roll) roofing. This type of roofing is similar to asphalt shingles but comes in a roll that’s unraveled and installed over your roof deck. There are many types of rolled roofing, including TPO, EPDM, and modified bitumen roofing (aka torch down roofing).

The most common defect in a flat roof is leaking. Flat roofs have minimal slope, so water pools more readily on a flat roof than on a sloped roof, and the risk of the waterproof membrane failing increases with exposure. Tears and punctures from foot traffic and blown debris are other common problems, especially with single-ply roofing membranes like TPO and EPDM roofs.

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.

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