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

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

"I had a great experience working with Guardian Roofing Systems. From start to finish, they were professional, prompt, and thorough. The team showed up on time and completed the job within the timeframe they promised, which I really appreciated. What stood out most was how clearly they explained every step of the process—from the initial inspection to the final cleanup. They took the time to answer my questions and made sure I understood what work was being done and why. Overall, I’m very satisfied with the quality of their work and the level of service I received. I wouldn’t hesitate to recommend them to anyone in need of flat roofing services."
roof coating
new roof installation
decking
insulation
base sheet

+13

Response time2 days
Response rate91%
105 neighbors recently requested a quote
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

"I had Boss Roofing go to my rental properties outside of Ft Myers to check the tile roofing to see if it might have been damaged from Hurricane Irma. They were quick to check out, access and repair. I would highly recommend them for repairs or replacement."
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
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
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

"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."
356 neighbors recently requested a quote
Recommended by75%of homeowners
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
...
Showing 1-10 of 137
Roofing questions, answered by experts

The minimum recommended slope for a porch roof is 1/4:12, which means 1/4-inch of rise every 12 inches of run. Slopes of 3:12 and 4:12 are more common and provide faster drainage for runoff. Make sure to choose a pitch that’s appropriate both for the climate in your area and the type of roof material you install. Hire a roofer if you need help determining what the right roof pitch is.

The roof overhang, also known as the eaves, does count as part of the roof’s square footage because it must be covered with the roofing material. The overhang is one of the reasons why you can’t base your roof's square footage on the square footage of the house. The roof square footage must also account for the pitch of the roof as well as the eaves.

Gable roof construction can last for 100 years or more without needing structural repairs, although the lifespan depends on your climate. Since gable roofs are great at shedding rain and snow, the actual roofing material on top will last for between 20 and 100 years or more, depending on the material you choose. If you’re unsure that your gable roof is up to par, have a roof inspector take a look.

The level of underlayment’s water resistance will depend on the type of underlayment. The most popular underlayment, felt, is water-resistant, but it can’t withstand long direct exposure to rain or the elements. 

Synthetic underlayment is more waterproof, but asphalt is the only fully waterproof type of underlayment.

Though roof coatings can last up to two decades, it’s a good idea to recoat your roof every four to six years. This is especially important if you have a built-up roof, which is vulnerable to moisture issues. Inspect your built-up roofs annually to make sure they don’t need a new coat.

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.