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  • Writer's pictureLAST STOP ROOFING

How much does a new roof cost in Philadelphia, PA?

Updated: May 13

When it comes to the cost of roof replacement or repair, there are several factors to consider that can impact the overall price. Understanding these factors in detail can help property owners make informed decisions about their roofing projects.

1. Level of Difficulty: The level of challenge involved in the project can significantly affect the cost of a roof replacement or repair. Factors such as multiple angles, valleys, skylights, or other architectural features can increase the time and materials needed for the project, ultimately driving up the cost.

2. Roof Pitch: The slope or pitch of the roof can also impact the cost. Steeper pitches require more labor and materials due to the increased difficulty of working on such roofs. This can lead to higher costs for installation or repairs.

3. Roofing Materials: The choice of roofing materials can have a significant impact on the overall price. Different materials, such as asphalt shingles, slate, modified bitumen, hot tar, or TPO, come with varying costs and quality levels. Higher-end materials may cost more upfront but offer better durability and warranties.

4. Labor Costs: Labor is a significant component of the total cost of a roofing project. Skilled and experienced laborers may charge higher rates, but their expertise can ensure a high-quality installation that will last for years to come.

5. Existing Roof Decking Condition: The condition of the existing roof decking can affect the cost of a new roof. If the decking is in poor condition, it may need to be repaired or replaced before the new roof can be installed, adding to the overall project cost.

6. Layers of Roofing Materials: The number of layers of roofing materials stacked on a roof can impact the cost of replacement or repair. Removing multiple layers can require more time and labor, increasing the overall cost of the project.

7. Unforeseen Damage: Issues such as improper original roof pitch framing or dry rotted roof sheathing can lead to additional work and materials, driving up the cost of the project. It's essential to address these issues promptly to prevent further damage.

8. Size of the Roof: The size of the roof directly correlates with the cost of replacement or repair. Larger roofs require more materials and labor, making them more expensive to work on compared to smaller roofs.

9. Type of Roof: The type of roof, whether flat, A-frame, or steep, can also impact the cost. Flat roofs are typically less expensive to replace or repair due to their simpler design, while A-frame or steep roofs may require more labor and materials, increasing the overall cost. The intricate design and steep slope of A-frame or steep roofs can make the installation process more challenging and time-consuming, which can drive up the overall cost of the project. Additionally, A-frame or steep roofs may require special safety equipment and techniques, further adding to the cost.

10. Commercial vs. Residential: Whether the project is for a commercial building or a residential home can also impact the cost of roof replacement or repair. Commercial buildings typically have larger roofs with more complex designs, requiring additional materials and labor. On the other hand, residential roofs are generally smaller and simpler, making them less expensive to replace or repair.

11. Experienced Workmanship: The skill and experience of the roofing crew can have a significant impact on the cost of a roof replacement or repair. Skilled and knowledgeable roofers can complete the project efficiently and effectively, potentially saving time and money in the long run. Inexperienced or unskilled workmanship can lead to costly mistakes and rework, ultimately increasing the overall cost of the project.

12. Roofing Materials and Manufacturers: The type and quality of roofing materials used, as well as the manufacturer of those materials, can affect the cost of the project. Different materials come with varying costs and warranties, with higher-quality materials typically commanding a higher price. Additionally, choosing reputable manufacturers can ensure the longevity and performance of the roof.

By considering these factors in detail, property owners can make informed decisions about the cost of their roof replacement or repair project. It's essential to weigh the various factors, such as the level of difficulty, roofing materials, labor costs, existing conditions, and experienced workmanship, to determine the most cost-effective and durable solution for their specific needs and budget constraints.


In Philadelphia, the average cost of roof replacement is around $7,900, with prices varying depending on the size and complexity of the project, as well as the materials used. This average cost takes into account factors such as labor, materials, and any additional services required during the replacement process.

For smaller repair jobs, the low end of the cost spectrum can start at around $1,200. These repairs typically address minor issues such as fixing leaks, replacing damaged shingles, or repairing flashing. The cost of these repairs can vary based on the extent of the damage and the time required to complete the work.

On the higher end of the scale, a full roof installation in Philadelphia can cost around $21,000 or more. This price range is often associated with larger homes or commercial buildings with complex roof designs, steep pitches, or high-quality materials. The cost of a high-end installation also factors in additional services such as removing multiple layers of old roofing materials, repairing underlying decking, or installing special features like skylights or ventilation systems.

Overall, the cost of roof replacement or repair in Philadelphia can vary significantly based on the size, type, and condition of the roof, as well as the materials and labor required for the project. By obtaining multiple quotes from reputable roofing contractors and considering factors such as experienced workmanship and the quality of materials, property owners can make informed decisions to ensure a durable and cost-effective roofing solution.


Adding new gutters, skylights, or dormer additions to a roof replacement or repair project can significantly increase the overall cost. Each of these features requires additional materials, labor, and expertise to install properly, which can impact the total price of the project.

1. New Gutters: Installing new gutters is essential for proper water drainage and protection of the roof and the structure of the building. High-quality gutters can help prevent water damage, mold growth, and erosion around the foundation. The cost of new gutters can vary depending on the material, size, and style chosen. Additionally, factors such as the number of stories in the building, the complexity of the gutter system, and the need for gutter guards can also affect the overall cost.

2. Skylights: Adding skylights to a roof can bring natural light into the interior space, enhancing the aesthetics and functionality of the building. Skylights can vary in size, style, and quality, with options such as fixed, vented, or tubular skylights available. The installation of skylights requires precision to ensure proper sealing and waterproofing to prevent leaks. The cost of skylights includes not only the materials but also the labor and expertise required for installation, which can add to the overall price of the project.

3. Dormer Additions: Dormers are structural elements that protrude from a sloping roof, typically containing a window or set of windows. Dormer additions can increase the usable space within a building, providing more natural light and ventilation to the interior. The cost of adding dormers to a roof replacement or repair project can vary depending on the size, design, and materials chosen. Dormer additions require careful planning, structural modifications, and skilled labor to integrate seamlessly with the existing roof structure, which can contribute to a higher overall cost.

By incorporating new gutters, skylights, or dormer additions into a roofing project, property owners can enhance the functionality, aesthetics, and value of their building. While these features can increase the initial cost of the project, they can also provide long-term benefits in terms of energy efficiency, natural light, and overall property value. It's essential to work with experienced roofing contractors who have the expertise to properly install these features and ensure a high-quality and durable roof system.


If you're in need of roofing services in the Philadelphia area, consider scheduling a free on-site estimate today with Us, you can receive a personalized assessment of your roofing needs and a detailed cost estimate for your project.

Last Stop Roofing & Home Repair LLC is a reputable roofing company known for their quality craftsmanship, attention to detail, and commitment to customer satisfaction. Their experienced team of professionals can assist you with various roofing services, including roof replacements, repairs, gutter installations, skylights, dormer additions, and more. During the estimate, their roofing experts will assess the condition of your roof, discuss your specific requirements and preferences, and provide you with a comprehensive quote for the project.

By choosing Last Stop Roofing & Home Repair LLC for your roofing needs, you can rest assured that you're working with a trusted and reliable contractor who will deliver high-quality results. Don't hesitate to take the first step towards a safe and secure roof by scheduling your free on-site estimate today with Last Stop Roofing & Home Repair LLC.

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