Are you looking to replace your old roof? Chances are, you want to know the estimated roof replacement cost so you can compare options. Or perhaps weigh if it’s worth tearing down your entire roof or opts for a repair. That said, roof replacement cost varies based on several factors. 

If you are renovating your entire roof, you’ll incur the cost of materials and labor. The size of the house and the type of roofing material are the other cost determiners. The average cost of a roof replacement will also vary per region.

Before estimating the cost of roof replacement, there are some things to keep in mind. Below, we’ve rounded up the factors. You’ll also learn when and how your insurance can chip in. And whether you should go DIY or hire a professional.

Calculating Roof Replacement Costs

roof replacement cost


When replacing a roof, the first thing to prioritize is to conduct a thorough roof inspection. This will help quantify the level of damage and the materials needed. It’s also worth noting that the roofing labor cost per square footage varies per contractor & location. Some areas are more expensive than others, and you need to factor this into your calculations. 

Apart from the labor costs, here are the other elements that affect the price of a roof replacement.

  • Nails – the quantity of nails needed depends on the size of the roof. The cost of nails can raise the overall roof replacement cost.
  • Underlayment – This layer protects your roofing structure from water damage. It also keeps your home safe from leaks and mold, i.e., if the shingles are damaged.
  • Ventilation – Some damaged roofs have ventilation issues. Poor ventilation means hot air can’t escape your attic. This leads to mold and even rooting of wooden roof parts. To be on the safer side, ensure your contractor has the plan to replace the ventilation.
  • Roof flashing – this is one of the critical parts of any roof. Roof flashing is often used where the roofing material meets the chimney. Most unscrupulous roofing contractors won’t install roof flashing to lower the cost. This will lead to poorly sealed joints resulting in leaks.
  • Drip Edge – this is the part of the roof that extends beyond the fascia. The drip edge helps keep water away from your home. This helps prevent rot and ensures the longevity of your roof.

Paying attention to the above roofing elements is key to tracking the total roofing costs. So be keen to ask your contractor if your roof needs any or all of the above areas replaced.

The Cost of Replacing a Roof 

Roofing materials come at varying costs. For instance, metal roof replacement cost is typically higher than that of shingles. According to Home Advisor, the roof replacement cost for a 2,200 square-foot house varies from $2,500 to $25,000.

Replacing a copper roof is more expensive than slate and stainless steel, while asphalt shingles are the cheapest. The lighter the material, the cheaper it is to install. Heavier and more delicate materials like slate and exotic tiles are costlier. Similarly, labor costs in areas such as Florida and Texas are higher compared to others.  

If you are on a budget, it can be tempting to go for the lowest replacement costs possible. That means you will opt for low-quality materials and perhaps amateur roof replacement services. A rule of thumb is to compare all the roof replacement options in the market. You want to choose high-quality materials that will last. It would also be better to ask the roofing company about their insurance before negotiating the price. 

More often, you want to estimate the cost of roof replacement before negotiating prices. Most roofers discuss the costs per 100 square feet instead of one square foot. That said, always involve a roofing professional when making a roof replacement estimate. You can also use a roof replacement cost calculator to capture accurate figures in your region.  

Going DIY or Hiring a Professional 

roof replacement cost


For minor repairs that don’t need tearing down the entire existing roof, going DIY isn’t a bad idea. However, when it comes to a major renovation project where your entire home and safety is at stake, hiring a professional is the way to go. 

There are several benefits to choosing the right roof replacement company. For instance, you are sure to have the right products and materials. Similarly, you reduce delays since the contractor will work with a definite schedule. 

Another advantage that perhaps goes overlooked is ensuring compliance with local building laws. The worst thing that can happen after a roofing project is to have issues with the local authorities. By hiring the right roofing contractor, you cut roofing blunders and other inconveniences.

So how you can select the right roofing contractor? It is all you need to do proper research. Reputation, experience, and customer satisfaction are some of the factors you should prioritize.