How to Compare Roofing Estimates
in New Hampshire
Not all roofing estimates include the same materials, workmanship, warranties, or installation methods. Before choosing a roofing contractor, learn how to compare estimates side by side so you can make an informed decision based on value—not just price.
Helping New Hampshire homeowners make informed roof replacement decisions for over 20 years.
Why Roofing Estimates Can Vary So Much
If you've received multiple roofing estimates, you may have noticed that prices can vary by hundreds—or even thousands—of dollars. While it's tempting to focus on the bottom-line price, two estimates that look similar at first glance may include very different materials, installation methods, warranties, and levels of service.
A professional roofing estimate should clearly explain what is included in the project, not simply provide a total cost. Comparing estimates side by side allows homeowners to understand exactly what they're paying for and helps ensure they're making an informed decision based on value rather than price alone.
Before selecting a roofing contractor, take the time to compare the complete roofing system, workmanship, warranty coverage, property protection, and overall scope of work. The sections below will walk you through the most important items every homeowner should review before making a final decision.
A lower price doesn't always mean you're getting the same roof. Two estimates may use different materials, include different levels of workmanship, or provide very different warranty coverage. Always compare the complete scope of work—not just the final price.
Roofing Estimate A
Lower Price
Basic Tar Paper Underlayment
Limited Warranty or No Warranty
Reuse Existing Chimney Flashing
Basic Mesh Ridge Venting
Roofing Estimate B
Higher Price
Premium Synthetic Underlayment
Enhance Labor & Material Warranty
All New Chimney Flashing
Upgraded Rigid Plastic Baffled Ridge Venting
10-Step Roofing Estimate Comparison Checklist
1. Compare the Scope of Work
Review exactly what each contractor is proposing. A detailed roofing estimate should clearly outline the work to be performed, the materials being installed, and any additional services included. Estimates that lack detail can make it difficult to compare proposals accurately.
2. Compare Roofing Materials
Not all roofing materials offer the same performance or warranty coverage. Compare the shingles, underlayment, starter shingles, ridge cap shingles, flashing materials, and accessories included in each estimate. Quality materials can have a significant impact on the longevity of your new roof.
3. Compare Underlayment & Ice & Water Shield
Ask how much ice and water shield is included and what type of underlayment will be installed. These components provide an important layer of protection beneath the shingles and help defend against moisture infiltration during New Hampshire's harsh weather conditions.
4. Compare Flashing Replacement
Flashing helps protect vulnerable areas such as chimneys, roof walls, valleys, and plumbing vents. Verify whether existing flashing will be reused or replaced and ensure each estimate clearly explains what is included.
5. Compare Roof Ventilation
Proper attic ventilation is an essential part of every roofing system. Compare ridge vents, intake ventilation, and any ventilation improvements recommended by each contractor. Proper ventilation can help extend the life of your roof and improve energy efficiency.
6. Compare Roof Deck Inspection & Repairs
Roof decking cannot always be fully evaluated until the existing shingles are removed. Ask each contractor how damaged decking will be identified, documented, priced, and repaired if necessary.
7. Compare Cleanup & Property Protection
A professional roofing contractor should explain how your landscaping, driveway, siding, and surrounding property will be protected during the project. Ask about tarps, debris removal, magnetic nail sweeping, and final cleanup procedures.
8. Compare Warranty Coverage
Review both the manufacturer's material warranty and the contractor's workmanship warranty. Compare what is covered, how long the coverage lasts, and whether enhanced warranty options are available.
9. Compare Project Timeline & Communication
Ask when the project is expected to begin, how long the installation should take, who will supervise the work, and how you will receive updates throughout the project. Clear communication helps set expectations and reduces misunderstandings.
10. Compare Overall Value—Not Just Price
The lowest estimate is not always the best investment. Consider the quality of materials, workmanship, warranty coverage, professionalism, customer reviews, and overall scope of work. Choosing the proposal that offers the best long-term value can provide greater confidence and help protect your home for years to come.
A roofing estimate should help you understand exactly what you're buying—not just what you're paying. Comparing the complete roofing system, warranty coverage, workmanship, and scope of work will help you make a more informed decision than simply choosing the lowest price.
Questions to Ask Before Accepting a Roofing Estimate
Before signing a roofing contract, take time to ask questions about the proposal. A professional roofing contractor should be willing to explain the materials, installation methods, warranties, and overall scope of work. The answers you receive can help you compare estimates more accurately and avoid unexpected surprises during your roof replacement project.
What exactly is included in this estimate?
Ask the contractor to explain the complete scope of work, including all materials, labor, permits, and cleanup services.
Are all roofing materials listed by brand and product name?
Knowing the exact products being installed makes it easier to compare estimates and understand the quality of the roofing system.
Will damaged roof decking be replaced if necessary?
Ask how hidden decking damage will be documented, approved, and priced should it be discovered during the installation.
Will existing flashing be replaced or reused?
Flashing protects some of the most vulnerable areas of your roof. Make sure the estimate clearly explains what is included.
How will attic ventilation be addressed?
Proper ventilation is essential to the long-term performance of your roofing system. Ask what ventilation improvements, if any, are recommended.
What warranties are included?
Understand both the manufacturer's material warranty and the contractor's workmanship warranty before making your decision.
Who will supervise the roofing project?
Knowing who is responsible for managing the installation helps ensure clear communication throughout the project.
How will my property be protected during installation?
Ask about tarps, landscaping protection, debris removal, magnetic nail sweeping, and final cleanup procedures.
How long is the project expected to take?
Discuss the anticipated schedule, weather considerations, and how delays will be communicated if they occur.
Are there any additional costs that may not be included?
Ask about potential charges for damaged roof decking, permit requirements, chimney work, or other unforeseen conditions so you understand how changes will be handled.
Helpful Tip: A detailed roofing estimate should leave very few unanswered questions. If a contractor cannot clearly explain the proposal, consider asking for clarification before signing a contract.
