Do you need a roof replacement with solar panels?

Solar panel systems typically last around 20 to 30 years. Since these systems have long lives, it’s reasonable to ask if your roof will hold up for the same amount of time. Should you replace your roof before you install solar panels? What happens if you need to repair or replace your roof after going solar? 

Generally, it makes sense to replace your roof when you go solar. The good news is that the savings on your electric bill will likely make up the cost of a new roof over time.

But before you reach out to a roofing contractor, we'll help you consider whether you should replace your roof, how a roof replacement will impact your savings from going solar, and the costs involved with removing existing panels for a roof repair.

Before installing solar panels, getting your roof inspected (unless it's new) is worth it. While metal and tile roofs can last over 50 years, asphalt roofs usually only last up to 30 years. So, even if your asphalt roof is just 10 years old, you'll still want to make sure it’ll last as long as your solar panels—most solar panel brands cover their products under warranty for 25 years, but they can often produce adequate electricity for more than 30 years. The good news is that solar panels often extend the life of your roof, so it doesn’t need to be brand new. 

If your installer suggests a roof replacement before going solar, we recommend listening to them. Otherwise, you could pay hefty fees to remove and reinstall your panels—or worse, have leaks in your roof that damage your home. Replacing your roof and getting solar panels at the same time can even provide some benefits.

Is going solar still worth it if you need to replace your roof?

Re-roofing costs can be high, but so are rising energy costs. Even with the cost of a new roof, you'll likely save tens of thousands of dollars on electric bills with solar. If your roof already needs replacement, this is the best time to go solar. 

If you're considering moving in the future, it's normal to worry about investing too much money in your home. But remember, solar can increase your home's resale value by 4%, and having a new roof can make it easier to sell your home for more money.

What are the benefits of replacing your roof before going solar?

Approach offers for "free" roof replacements with a healthy dose of caution. When a company advertises this, it's typically part of a bundled deal. Many solar installers work with roofing companies to provide a discounted roof replacement when you install solar panels. 

Alternatively, a “free” roof replacement could refer to a solar roof installation, which inherently requires replacing your existing roof. In this case, the replacement isn't truly "free"; you're purchasing the new roof itself, with the removal of the old roof included as part of the package.

If you encounter a roofing issue and need to replace your roof post-installation, don't worry. It won't be cheap, but it is possible.

How much does it cost to remove solar panels to replace your roof?

It could cost over $7,000 to remove and reinstall solar panels. Generally, you should expect to pay about $200 to $300 per panel. And don’t forget: You'll also need to pay for roof replacement.

Ultimately, the price you'll pay depends on the size of your system, how many panels you need removed, if your installer needs to remove mounting hardware, and whether you need a place to store the equipment. Once your installer removes your panels, it usually voids the panel manufacturer's warranty, so if something goes wrong with your panels in the future, it will come out of your pocket.

Who should you contact to remove your solar panels?

We recommend contacting your original solar installer to remove and replace panels. They'll be most familiar with your installation, and their warranty may even cover part or all of the costs. If you can't get in touch with them, some other solar companies offer operations and maintenance services for installations other than their own.

If re-roofing post-installation concerns you, we recommend asking installers how often they do this type of work and what its typical cost is before selecting a solar quote. Some companies specify a price in your initial contract, and it never hurts to request this from your company before installation.

Do solar installation warranties cover the roof?

Solar installations rarely cause roofing issues. As we mentioned previously, solar panels usually make your roof more durable. However, many solar installation companies provide warranty coverage for your roof where the panels are located. It's common for an existing roofing warranty to become void when you install solar, at least for the portion covered by solar panels. Solar installers offer this roof warranty so you still have peace of mind.

Roof warranties from solar companies typically last 10 years, but they can vary. If your installer recommends a roof replacement and you choose not to listen, there's a good chance they won't provide you with the warranty coverage. Before you sign a contract, confirm with your installation company whether they cover the roof and the duration of that warranty.

A roof replacement isn’t the most glamorous investment, but it's often the smartest if you’re going solar. Since your panels will be up there for decades, making sure your roof can go the distance will save you money and headaches down the line.