If you’re in need of roofing services within the Southern New Hampshire area, you’ve come to the right place! For the last 20+ years, our locally owned and operated team has grown to be one of the more trusted roofing companies in the area. Derek Cook and his team install all roofs the proper way, and with the right products!

A home without a reliable roof is a bit like a car with flat tires – it may look okay, but it can hardly do its job. The roof is one of the most important components of your home, and it needs attention from time to time to make sure it’s up to spec.

At Derek Cook Roofing Specialists, our team of skilled contractors are here to provide you with the roofing services and materials that you deserve. Please explore our GAF section below to learn more about what products don’t go on your house!

Serving Your Home Roofing Needs

If you’re facing roofing problems, call the experts at Derek Cook’s Roofing Specialists in Manchester. Our professional roofers will:

  • Come out to your home and inspect your roof
  • Discuss different roofing options and technologies
  • Provide top notch installation and repair services
  • Handle insurance claims and documentation

Whether you’ve just weathered a serious hailstorm, suspect leakage, or just want to make sure that your aging roof is still fit for service, call Derek Cook’s Roofing Specialists to discuss your roofing needs.


We take pride in serving the local community and have worked hard to become a trusted partner for roofing services. We’re a team that appreciates the importance of a reliable, well-maintained roof for optimizing the safety of your property and offers a wide range of services to help you maximize the value of your roofing system at affordable prices.

With our team, you can rest assured that your roofing system is being maintained or installed in line with industry safety and quality standards. Our team does everything from minor repairs to honest damage assessments and complete system replacements.


If you’re looking for affordable roofing services to optimize the safety and performance of your roof, look no further than our licensed roofing technicians. We believe exceptional roofing should be accessible for everyone without putting a big dent in your financial bottom line. That’s why we work diligently to keep our prices affordable and provide transparent financing information on all our services.

When you partner with our team, you’ll receive detailed financial breakdowns of our labor and material costs and have the resources to make an informed decision about your roofing investment. Whether your home will benefit from roof repairs or you’re investing in a brand-new roof, we’ll offer transparent insights into every aspect of the project and go the extra mile to support your goals.


When your property has been damaged by falling debris, a storm, or general aging and wear, you should hire the experts at Derek Cook's Roofing Specialists, INC. for a roofing safety inspection. Our licensed inspectors and contractors have a keen eye for detail and work diligently to ensure your roof’s structure and waterproof barrier are intact. We offer customized inspections and honest written reports that highlight all our findings.

When left unattended, minor issues like lifted shingles and clogged gutters can become significant, costing money and time to resolve. We offer pre-emptive and emergency damage assessments and personalize our inspections to accommodate your priorities.

Our roof inspectors typically focus on the following:

  • Exterior inspections
  • Interior inspections
  • Structural assessments
  • Roofing material assessments
  • Flashing and waterproof seal checks
  • Gutter and drainage tests
  • Detailed written reports
  • …and more!


As shingle roofing specialists, we have the skills and resources to keep your property safe and ensure your roofing materials are optimized for durability. We’re passionate about roofing and want to help you install, repair, or maintain a shingle roof you can rely on for protection for many years down the road.

Whether finding and resolving problems with worn shingles that are missing their protective granules or locating and stopping leaks in their tracks, we’re the shingle experts you can count on for actionable solutions that align perfectly with your budget.

Don’t let a problem with your shingle roof linger for too long when you can call our experts to fix your roof without delay. Book an obligation-free consultation appointment to learn more about what we’ll do to save you time and money.


Are you dealing with a leaky roof and require licensed and dependable roof repair? Or are you looking for skilled roof installation from reputable roofing company experienced with a range of roofing types? Derek Cook's Roofing Specialists, INC. provides a full range of roofing services including licensed roof inspections and preventative roof repair and maintenance. Our residential and industrial roofing contractors understand that the roof of your home or business is a significant investment that requires cost effective roofing solutions from roofing professionals.

Derek Cook's Roofing Specialists, INC. provides a full range of roofing services for home and business owners that include:

  • Licensed Roof Inspection
  • Leaky Roof Repair
  • Flashing Roof Repairs
  • Single Roofing Repair and Replacement
  • Caulking and Sealant Roofing Repairs
  • Roof Waterproofing
  • Roof Cleaning
  • Resealing and Repainting
  • Gutter and Eavestrough Repairs
  • Roof Ice and Water Damage Repair
  • Roofing Vent Repair and Replacement
  • Residential and Commercial Roofing Repair and Maintenance

Emergency Roof Repair and Licensed Roof Inspection

For prompt emergency repairs on shingle roofing, or low sloping systems, call Derek Cook's Roofing Specialists, INC. for a complete roof inspection and relatively minor roofing repairs before they turn into costly roofing problems. Our roofing experts provide a range of roofing solutions for your commercial or residential location and are equipped to carry out re-roofing and complete roof replacement for a range of roofing types that include:

  • EPDM Roofing
  • Shingle Roofs
  • Gutter Systems

Preventative Roof Maintenance

To avoid major and costly repairs and as part of a preventative roof maintenance program Derek Cook's Roofing Specialists, INC. recommends a licensed and professional roof inspection:

  • Following a heavy rain storm or other extreme weather condition
  • For regular removal of debris buildup
  • For routine evaluation of flashings, soil vents and goose necks

Warning Sign That Your Roofs Needs Repair

Check regularly for these warning signs and follow the recommendations of Derek Cook's Roofing Specialists, INC. roofing specialists:

  • Interior water stains
  • Interior mold
  • Water ponding on the roof valley
  • Standing water on the roof deck
  • Blisters within the roof membrane
  • Tears and cracks in the roof covering
  • Debris or excessive vegetation

Checking for Roof Damage

Climbing up onto your residential or commercial roof without help or professional assistance can be hazardous. If you are worried about damage to your roof try a visual inspection from the ground using binoculars. Look for missing cracked or torn shingles, accumulation of asphalt granules in gutters and visible anomalies in roof valleys. If you do decide to take a closer look, do so with extreme caution. Make sure to wear non slip rubber soled footwear and that your ladder is firmly braced. Work with a friend or partner for extra safety. Avoid walking on a seriously damaged roof as you can easily dislodge surface granules and risk your own safety as well as the roof structure. Take special precautions if a roof is particularly weak. For best results consult a Derek Cook's Roofing Specialists, INC. roofing professional for more information today.

Contact Derek Cook's Roofing Specialists, INC.

For all your commercial roofing needs, let the top commercial roofing company in the area help. Give us a call today for a free quote on any of our services.

Let us help you with your roof

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