10 Best Roofers in Derry, NH

How Much Does a New Roof Cost in Derry?

Budgeting is important when tackling a project as big as replacing your roof. Below, we outline the average price range for replacing a roof on a 1,500 square foot home in Derry. We also highlight price differences between popular roof materials.

How To Choose a Roofing Company

A new roof installation is a major home renovation that can run tens of thousands of dollars. It's crucial to research and find a highly reviewed and recommended roofing company for the job. Here are some important considerations for hiring a roofer.

• Roofing materials and products: Quality roofing materials from leading manufacturers can handle Derry's weather and endure decades. Avoid contractors offering cheap or generic materials. Review shingle samples before deciding.
• 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 positive feedback. You can also request recent local references.
• 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. Avoid companies that have less coverage than that.
• Detailed written estimate: Dependable roofing companies will provide a thorough written proposal. The quote should specify the full scope of the project, materials required, and total cost with no surprise charges. Avoid providers that offer unclear bids, or ones that seem way too high or low.
• Responsiveness and communication: From estimate to project completion, your contractor should keep in consistent contact with you, answer all questions, and handle any concerns.
• Experience and credentials: Seek out providers that have been operating for at least 10 years. These companies' extensive experience and time in operation reflects stability, expertise, and satisfied past clients. Confirm that a provider has appropriate licenses, bonds, and insurance before hiring. Also inquire about professional certifications, such as those from the National Roofing Contractors Association.

Signs Your Roof Needs Repair or Replacement

You may not think about your roof daily, but it plays a vital role protecting your home. Look out for these common signals that your roof needs to be inspected and repaired by a professional roofer.

Roof Age

The age and material of your roof are key factors. Asphalt shingles, the most common residential roofing material, typically last 20–25 years before needing to be replaced. If your roof is nearing or past this lifespan, get a professional inspection to determine if full replacement is needed.

Leaks or Water Stains in Your Home

Leaks are a frequent sign of roof issues. Water leaking through worn or damage shingles often leads to water stains on insulation, ceilings, and walls, or in your attic. Don't ignore even small leaks, as they can still lead to mold and other damage.

Exposed Roof Decking Underneath Shingles

If you can see your roof deck boards underneath your shingles, it means those shingles are severely curling or losing their seal and need to be replaced. Shingles should lie flat to prevent water from leaking into your home.

Cracked, Broken, or Missing Shingles

Examine your shingles closely from a safe ladder or while on the ground. Look for shingles that have cracked or are missing granules. 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

Roof flashing makes a watertight seal around valleys, vents, chimneys, and other areas where water can penetrate your roof. Peeling, cracked, or deteriorated flashing can allow leaks. We recommend promptly resolving any flashing issues that come up.

Sagging Roof Line

If you notice your roofline displaying signs of sagging or uneven slopes, it could indicate a problem with the structure that requires professional inspection. A sagging roof deck will worsen over time if not given proper reinforcement or replaced entirely.