When is it time to replace my roof?

Don't take chances regarding your roof—it keeps you and your family safe. Here's when to call a professional roofer about a roof replacement.

Residential and Commercial Roofing Projects
Blackhawk Roofing
December 6, 2025
by Dan Schnell

What to do if you think your roof needs to be replaced

A sturdy roof keeps your home, your family, and your personal belongings safe. As a rule of thumb, you should inspect your roof every year.  If you follow the steps in the list below, and one of the signs points toward needing a new roof, it's time to call us. Blackhawk Roofing can assess your current situation and recommend a repair or roof replacement.

Six signs your roof should be replaced

1. Your roof is old

Residential roofs typically last 20 to 25 years before needing replacement. If your roof is on its last legs, now may be the perfect time to get an estimate from a roofer. As an alternative to a complete replacement, you can also opt for overlaying, where new shingles are laid directly on top of existing ones. This alternative can be more affordable than a total roof replacement and make your house look fresh again. Despite being cost-effective, however, it's advised to replace the old roof completely. This way, you can ensure that any problems beneath the shingles are resolved and have a roof that lasts for many years.

2. Your shingles are curling, buckling, or missing

Residential roof damage can cause homeowners a lot of major headaches. If your home receives direct sunlight on its roofs, you should be especially vigilant and check regularly for signs of curling, buckling, or missing shingles. Warped or worn-out shingles indicate it’s time to replace the roof. However, often only a few shingles are damaged, and these can be replaced more simply and easily than changing the whole roof. Be sure to inspect where the different slopes of the roof meet - known as valleys - where water runoff is most commonly directed into gutters so that it doesn’t penetrate your walls. Wind damage, wear and tear from snow or hail, and other factors are classified as sources of valley degradation. If these components show signs of disintegration, your roof could leak if left unchecked. Finally, inspect your gutters and downspouts for any accumulated granules. This is a telltale sign that your shingles are wearing out faster than usual.

3. Your roof has sagging or droopy areas

Residential roofs can experience sagging due to moisture over time, which can be a serious issue. It's always best to check your roof regularly, and if you spot droop or saggy spots, this should serve as a warning sign that the decking, the structure that holds your roof up, has been weakened and will likely require a full replacement. If it is safe for you to walk on your roof, it's essential to pay attention to how it feels. If it then bounces under your feet like a trampoline, you know that the problem is even more serious and evacuation from the roof is definitely necessary. Don't just cross your fingers and hope for the best; take action when you spot roof damage now to avoid bigger problems later.

4. Your chimney flashing is damaged

Residential roof flashing is an essential element of a home that many fail to consider. Used in areas around the chimney, this material, typically made of aluminum or steel, provides a water-tight seal to protect your home against the elements. However, like most things, it won't last forever. Inspectors recommend checking for rusting and cracked flashing every 30 years, as these issues can allow water to seep into the chimney and, ultimately, the rest of your home. If you're concerned about the state of your Residential Roof Flashing, consult a local roof inspector - they can tell if fixing should be prioritized!

5. You can see daylight from the attic

Residential roof damage should be regularly inspected, especially if the home is older. The attic is typically one of the first places to look for potential problems with the roofing system. If light from outside can be seen filtering through the roof boards, it may indicate an issue, such as a missing shingle or an underlying structural problem. In addition to checking for daylight, homeowners should keep an eye out for any water stains on the interior ceiling and examine existing insulation for signs of moisture accumulation, which indicate roof leaks. If either of these conditions is present, it could signify a serious issue, and immediate action should be taken to address it.

6. Your roof is turning into a garden

Residential roof moss vegetation can cause many problems if not taken care of. Moss and overgrowth can damage roofing materials, and if left unchecked, they can invite pests and other insects to move in. Cleaning your roof is an integral part of maintenance, but it's not always easy. Fortunately, there are several options for cleaning your roof. You can purchase store-bought chemicals or make a DIY solution at home. If you don't feel comfortable doing this yourself, you can also contact a professional roofer for help. Taking care of the vegetation on your home's rooftop is a necessary step towards keeping it healthy and strong for years to come.

Blackhawk Roofing has built replacement roofs for thousands of residential and commercial customers in Springfield and Central Illinois. We've also done many hundreds of roof repairs. Blackhawk Roofing provides outstanding value on every project. Call owner Dan Schnell at 217-741-6251 to request a Free Estimate.

Licensed Roofing Contractor

Blackhawk Roofing is a licensed, certified, and insured roofing contractor. We specialize in residential roofing and EPDM commercial roofing. We have repaired or replaced thousands of old and damaged roofs in Springfield and Central Illinois.

Proud to be the best roofing contractor in Springfield