10 Best Roofers in Alton, IL

How Much Does a New Roof Cost in Alton?

For a project as big as roof replacement, cost matters. Below is the typical price range to replace a roof on a 1,500 square foot home in Alton. We also compare costs for common roofing materials.

How To Choose a Roofing Company

Installing a new roof is a large home improvement project that can cost a significant amount. It’s essential to do your research and find the best company for the job. Here are the key factors to consider when choosing a roofer.

• Experience and credentials: An established roofing company that has many years of experience in business demonstrates years of expertise, satisfied customers, and consistent quality work. Ensure the company is fully licensed, bonded, and insured before hiring. Inquire about any professional certifications relating your project, such as those from the National Roofing Contractors Association.
• References and reviews: Research companies carefully by checking reviews on sites like Google, Yelp, or the Better Business Bureau (BBB). Look for years of consistently good feedback. Also ask for recent local references.
• Warranties and guarantees: The best roofers provide robust manufacturer warranties on shingles lasting over 30 years, together with at least a 5-year labor guarantee. Stay away from companies with shorter warranty periods.
• Detailed written estimate: Trustworthy roofing providers will offer a comprehensive written estimate. This quote should outline the complete work scope, materials required, and total price with no hidden fees. Steer clear of unclear quotes, or ones that seem much too high or low.
• Roofing materials and products: Leading manufacturers produce durable roofing materials that can withstand Alton's weather for years. Avoid contractors offering low-cost or generic products. Inspect shingle samples before making a decision.
• Responsiveness and communication: From quote to project completion, your contractor should keep in consistent contact with you, respond to all questions, and address any concerns.

Signs Your Roof Needs Repair or Replacement

You may not think about your roof every single day, but it protects your home in important ways. Look out for these common signals that your roof needs to be checked and repaired by a professional roofer.

Roof Age

Your roof's age and material are key factors. Asphalt shingles, the most common residential roofing material, normally last about 20 to 25 years before needing to be replaced. Schedule a professional inspection if your roof is approaching or past this lifespan to determine if full replacement is needed.

Leaks or Water Stains in Your Home

One of the clearest signs of a roof issue is leaking. Stains on insulation, walls, and ceilings — or in your attic — usually mean that water is seeping through worn or damaged shingles. Don't ignore small leaks, because even these can lead to mold growth and roof deterioration.

Exposed Roof Decking Underneath Shingles

Seeing roof deck boards or sheathing under your shingles is a sign that those shingles are severely curling or losing their seal. This means it's time for replacement. Shingles should lie flat to stop water from leaking into your home.

Cracked, Broken, or Missing Shingles

Inspect your shingles closely from a steady ladder or while on the ground. Look for shingles that show cracks or no longer have their protective granule layer. Storms can cause roof damage over time. To keep your roof in good condition, replace any shingles that are no longer attached or have gaping holes.

Flashing Deterioration Around Roof Penetrations

Metal flashing on your roof seals off valleys, chimneys, vents, and other areas where water can leak in. If the flashing is becoming damaged, loose, or worn down, it may leak. Promptly address any flashing issues.

Sagging Roof Line

If your roof sags or is uneven, schedule a professional inspection. These issues could signal a structural problem. A sagging roof that's not properly supported or fixed will continue worsening over time.