10 Best Roofers in Dover, NH

How Much Does a New Roof Cost in Dover?

For a project as involved as roof replacement, cost is important. Below is the usual price range to replace a roof on a 1,500 square foot home in Dover. We also compare prices for popular roofing materials.

How To Choose a Roofing Company

Installing a new roof is a large home improvement project that can cost upwards of twenty thousand dollars. It's crucial to research and find the most qualified and reputable residential roofing company for the job. Here are some key considerations when choosing a roofing contractor.

• Roofing materials and products: Reputable roofing companies sell quality materials that can handle Dover's weather and last a long time. Be careful of contractors pushing extremely low-cost or generic options. Inspect shingle samples before committing.
• References and reviews: Vet companies by checking the latest online reviews on sites like Google, Yelp, or the Better Business Bureau (BBB). Look for a history of consistently good feedback. Requesting local references is another great way to learn more about the customer experience.
• Detailed written estimate: Trustworthy roofing providers will give you a comprehensive written estimate. This quote should outline the complete work plan, materials needed, and total price without hidden fees. Steer clear of unclear quotes, or ones that seem much too low or high.
• 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.
• Warranties and guarantees: Reputable roofing companies offer robust warranties that cover your roof. Look for coverage on shingles lasting 30+ years, plus at least a 5-year guarantee on labor. Be wary of companies that have shorter warranties.
• Experience and credentials: An established roofer 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 you hire them. Ask about any professional certifications that relate to your project, such as those from the National Roofing Contractors Association.

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. Be aware of 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. The most common residential roofing material is asphalt shingles, which normally last 20–25 years before needing to be replaced. Schedule an inspection if your roof is reaching this age to determine if it needs to be replaced.

Leaks or Water Stains in Your Home

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

Exposed Roof Decking Underneath Shingles

If you can see roof decking or sheathing visible under your shingles, it means those shingles are curling substantially or losing their seal and need to be replaced. Shingles should lie flat to keep water from entering your home.

Cracked, Broken, or Missing Shingles

Carefully examine your shingles from the ground or a safe ladder. Look for any shingles that are cracked or are missing granules. Over time, environmental factors like storms can cause surface damage. To keep your roof in good condition, you should replace any missing shingles or ones with gaps.

Flashing Deterioration Around Roof Penetrations

Roof flashing seals off valleys, vents, chimneys, and other areas that penetrate your roofing system. If the metal flashing is cracked, peeling away, or completely worn out, it can leak. Have any issues with roof flashing fixed right away.

Sagging Roof Line

An uneven roofline may indicate a structural issue that requires professional attention. Without fixing or replacing it, a sagging roof will continue to worsen.