Nationally, a new roof averages about $10,000, with most projects falling between $7,500 and $14,000, according to Fixr’s 2026 cost data. These figures can help you set an initial budget, but they should not be treated as a quote for your home. Roof installation costs vary based on the roof’s size, pitch, design, material, labor and the condition of the existing roof. Hidden damage can also add to the final cost once the old roofing is removed.
For homeowners in Plainfield and nearby Northern Illinois communities, Northwestern Exteriors Inc. provides roof installation services and offers free consultations and detailed estimates.
National cost ranges give you a useful starting point, but your final roof installation cost will depend on the work your home actually needs. The sections below look at the key cost factors, from roof size and materials to labor, tear-off and potential decking work. We’ll also cover what to look for in an estimate so you can compare quotes more confidently.
How Much Does Roof Installation Cost?
Expect roughly $3.75 to $11 per square foot of roof installed, with $4.75 as the national average, according to Fixr’s 2026 roof replacement cost data. Labor typically makes up 40% to 60% of that total.
For a Northwestern Exteriors Inc. project, the final cost can vary based on factors such as roof size and design, roofing material, labor requirements, removal of existing roofing, and any decking or structural repairs needed as part of the work.
NOTE: Please share your typical price range for an architectural shingle roof on an average Plainfield-area home, or confirm that this section should stay national-only.
How Is Roof Installation Priced by Size?
Roofing costs are often calculated based on the actual roof area rather than the home’s living space. Roofing estimates may also be expressed in “squares,” with one square equal to 100 square feet. For a national reference point, Fixr data puts the cost of a 2,000 sq. ft. roof at about $7,500 to $22,000, depending on factors such as material, design and labor costs.
NOTE: Please confirm whether you have a typical roof installation price range by roof size or square, or confirm that this section should remain based on national cost data only.
The final cost can change with the size and design of the roof, the material you choose, labor and installation requirements, and any decking or structural repairs found during the project. When comparing estimates, check the roof area, materials, labor and any additional repair costs listed so you can see what is driving the total.
What’s Inside a Roof Installation Quote?
A written, itemized estimate can make it easier to see what you’re paying for and compare the main cost factors between estimates. The figures below are national estimates from Fixr data, not Northwestern Exteriors Inc. published prices.
| Cost Factor | National Reference Point | Why It Can Affect Your Total |
| Tear-off and disposal | About $50 per square; up to $150 for heavy materials or multiple layers | Removing more layers or heavier roofing materials can increase removal and disposal costs. |
| Ice and water shield | About $0.50 per sq. ft. | The amount and placement of this material can add to the project cost. |
| Decking replacement | 2–8 per sq. ft. | Damaged decking may need to be replaced once the existing roofing is removed. |
| Permit | Varies by project | Permit requirements and fees depend on the project and local requirements. |
The cost figures above are national estimates from Fixr, while the hidden-damage information comes from This Old House. These are national figures, not project-specific quotes.
The final decking cost may not be known until the existing roofing is removed and hidden damage is exposed. In a 2026 This Old House homeowner survey, 23% of people who encountered hidden roof damage paid more than their original estimate, compared with 13% of those who did not. A quote that states the decking price upfront can make it easier to understand how additional decking work could affect the final cost if damage is found.
How Does Roofing Material Change the Cost?
On a roughly 2,000 sq. ft. roof, Fixr’s 2026 figures put standard asphalt shingles at $6,000 to $10,000, architectural shingles at $8,000 to $32,000, and metal at $14,000 to $38,000. These ranges overlap, so an architectural shingle roof can cost less than a metal roof.
Price is one factor to consider when choosing a roofing material. For an overview of the main options, see our guide to roofing solutions for a new roof installation.
How Can You Plan Around Roof Installation Costs?
A clear estimate can help you understand what your roof installation will involve before you schedule the work. Northwestern Exteriors Inc. offers free consultations and detailed estimates, with project information covering the scope of work, materials and timeline.
When reviewing your estimate, consider:
- Roof size and complexity. These can affect the overall project requirements and cost.
- Existing roof condition. The condition of the current roofing system can influence what work is needed.
- Structural or decking repairs. Existing structural or decking repairs may be part of the project when needed.
- Roofing material. Northwestern Exteriors offers asphalt shingles, cedar, synthetic shake and metal roofing options.
- Project timeline. The expected timeline depends on the size and complexity of the project.
Reviewing these details before approving the work gives you a clearer picture of what is included in the estimate and what factors are contributing to the overall cost.
Ready to Plan Your Roof Installation?
By now, you should have a clearer idea of the factors that can affect roof installation costs, from the size and design of your roof to materials, removal and potential decking work. National cost ranges can help you set a starting budget, while a project-specific estimate can show what your own roof installation is likely to involve.
Based in Plainfield, Northwestern Exteriors Inc. has more than 25 years of experience. The company is also a BBB Accredited Business with an A+ rating.
Still deciding whether you need a full roof replacement? When you’re ready to move forward, learn more about our roof installation service and schedule a free consultation. You can also call (630) 687-4949 to discuss your project.
