Replacing the roof on a 1,800-square-foot home can cost $7,071–$23,417, with many homeowners paying around $9,199 on average. A few different factors play a role in roof replacement costs, including your location, your home’s size and number of stories, and your roof’s design. If you have a 1,800-square-foot house, this guide explains these cost factors and helps you choose the right material for your new roof and budget.
Key Takeaways
- The average cost to replace a roof on a 1,800-square-foot house is $9,199, with costs ranging from $7,071–$23,417, depending on your chosen materials, labor rates, and roof design.
- Two-story homes typically cost less to reroof than one-story homes. A roof replacement for a two-story, 1,800-square-foot house averages $6,695 compared to $12,995 for a single-story home.
- Materials have the biggest impact on pricing, with asphalt shingles costing $7,071 for a 1,800-square-foot home, while premium slate roofing can reach $23,417 for the same house.
Get Your Roofing Project Quote Today
Compare quotes from local pros
How Does Home Size Impact Roof Replacement Costs?
Your home’s size, which is measured in square footage, and the number of floors plays a major role in what you’ll pay for a new roof. However, it’s important to keep in mind that your home’s square footage is not the same amount as your roof’s square footage.
A one-story home spreads all of its square footage across a single level, which results in a larger roof footprint. On the other hand, a two-story home stacks its living space, meaning it has a smaller roof area. In other words, the more stories you have, the smaller your roof size. So, a one-story home measuring 1,800 square feet has roughly 2,231 square feet of roof versus a two-story home, which has generally half that amount or 1,153 square feet.
The smaller your roof size, the less you’ll pay for a replacement. Since larger roofs require more materials and labor, the price increases. Most 1,800-square-foot homes have two stories. Compare roof replacement costs for 1,800-square-foot one- and two-story homes below.
| Number of Stories | Estimated Roof Square Footage | Average Roof Replacement Cost | Roof Replacement Cost Range |
|---|---|---|---|
| 1 | 2,231 | $12,995 | $9,958–$32,978 |
| 2 | 1,153 | $6,695 | $5,146–$17,044 |
Note: The roofing costs featured in this guide were calculated using standard roofing formulas and material costs sourced from RSMeans data from Gordian®. For more information, you can read our pricing methodology.
Homeowner Insights
- In the 2026 This Old House Roofing Survey of 1,000 homeowners, roughly 14% said their final roof replacement cost came in higher than expected, while about 79% reported the final bill matched their original estimate.
What Do Materials Cost for a New Roof on a 1,800-Square-Foot House?
The material you choose for your roof impacts replacement costs, as well as your home’s appearance, durability, and maintenance requirements. Compare pricing for different roofing materials for your 1,800-square-foot home below.
| Type of Roofing Material | Average Roof Replacement Cost |
|---|---|
| Asphalt | $7,071 |
| Metal | $13,879 |
| Wood | $17,243 |
| Clay | $23,301 |
| Slate | $23,417 |
Note: Material pricing was sourced using RSMeans data from Gordian®, a database that provides accurate and up-to-date construction costs.
While asphalt shingles offer a popular and affordable option, other materials like metal roofing come with greater longevity, while wood shingles and shakes can provide a natural, rustic aesthetic. Premium options like clay and slate tiles have exceptional durability but come with significantly higher price tags and structural requirements.
Homeowner Insights
- According to the 2026 This Old House Roofing Survey, total cost was the single biggest pre-project worry for homeowners—cited by roughly 31% of respondents—followed closely by choosing a trustworthy contractor at about 30%. Getting multiple quotes before committing can help address both concerns at once.
Comparing Regional Roof Replacement Costs for 1,800-Square-Foot Homes
Understanding cost factors specific to your region can help you better prepare for what you pay for a new roof in your area. Differences in regional pricing are driven by local labor rates, climate considerations, and material costs.
- Cost of labor: Labor rates change based on an area’s cost of living and economic conditions.
- Materials: Material availability and shipping distances can further impact roof replacement pricing, especially for specialty products.
- Weather and climate: Climate considerations also drive pricing differences, as homes in regions with extreme weather may require additional roofing materials or installation techniques for proper protection. For example, homeowners in Florida or other coastal states with extreme weather that calls for specific materials may pay more for a new roof.
- Building codes and permits: Building codes and permit requirements also vary by location, potentially adding to your project costs.
We’ve broken out roof replacement costs for an 1,800-square-foot house across major U.S. regions below.
| U.S. Region | Average Roof Replacement Cost |
|---|---|
| Northeast | $9,504 |
| South | $9,312 |
| Midwest | $9,056 |
| West | $9,481 |
Homeowner Insights
Our survey found that homeowners living in the Northeastern and Western U.S. spent twice as much on average for their roof replacement than those in the South and Midwest.
Calculate Roof Replacement Costs for Your 1,800-Square-Foot House
Ready to get started on your roof replacement project? You can use our roofing calculator below to estimate the cost of a new roof for your house. This way, you can start to budget before reaching out to contractors.
Roof Replacement Cost
Use our calculator to estimate the cost of your new roof.
Your Estimated Roof Replacement Cost:
Clicking “Get Your Estimate” submits your data to All Star Pros, which will process your data in accordance with the All Star Pros Privacy Policy.
Ad DisclaimerFAQs About Replacing a Roof on a 1,800-Square-Foot House
How long does a roofing installation take for an 1,800-square-foot house?
Replacing a roof on a 1,800-square-foot house typically takes between one and three days, but this can vary depending on your local climate, roof design, and other potential roadblocks. Unexpected weather like rain or extreme temperatures can delay work, as can uncovering hidden damage that needs repairing. Homes with complex roof designs, like multiple angles, dormers, or skylights, also require more detailed work and additional time. We recommend asking your contractor for a timeline when getting an estimate.
What’s the typical lifespan of a roof on a residential home?
The lifespan of your roof can vary depending on the material you choose. Asphalt shingles, the most common and affordable option, typically last 15–30 years. Metal roofing offers greater longevity, with most systems lasting 40–70 years. Wood shakes and shingles have a moderate lifespan of 20–30 years, while premium materials, like clay and slate tiles, can last 50–100 years. Scheduling regular inspections and maintenance can help maximize the lifespan of your roof.
How can you tell when it’s time to replace your roof?
Several signs can indicate your roof may need replacement rather than just repairs. Missing, loose, or damaged shingles are a visible warning sign, so look for bare spots, curling edges, or pieces that have blown off, particularly after storms. Your roof’s age is another factor. If your roof is nearing the end of its expected lifespan, it’s likely time to invest in a full roof replacement, or if repairs are becoming increasingly frequent.
How We Calculated Roofing Cost Data
The cost to replace a roof varies based on four primary factors: the home’s square footage, number of stories, roof pitch, and type of roofing material. We calculated roof pricing based on the following research and calculations.
For each home size, we applied standard architectural principles of a 6/12 roof pitch with one-foot eave overhangs to determine the total roof area. The calculation also incorporates weighted averages reflecting the distribution of one-story versus two-story homes across the U.S.
We then converted our roof area measurements into squares, which is the industry’s standard measuring unit, with one square covering 100 square feet of roof area. This calculation aligns with how professional vendors sell and price materials. We sourced material costs directly from RSMeans data from Gordian®, the industry’s leading construction pricing database used by professional contractors nationwide. Our final estimates represent the number of required roofing squares multiplied by material costs per square.
While these figures provide a reference point for budgeting purposes, actual prices may vary based on region, specific property characteristics, location, and current market conditions. For the most accurate pricing, we recommend requesting quotes from at least two reputable roofing companies in your area.
To share feedback or ask a question about this article, send a note to our team at reviews@thisoldhousereviews.com.