Many homeowners attempting to save money on household projects are turning to DIY projects. But do-it-yourself fixes can be costly, shows a new survey from Clovered, a home insurance company.

Eighty-seven percent of more than 1,000 homeowners recently surveyed admitted to making a mistake while attempting a do-it-yourself home improvement project. The median amount spent on fixing those DIY mistakes was $137.50, the survey showed. Millennials tended to spend the most in fixing their mistakes, spending up to four times as much as baby boomers—$200 versus $50 post-mistake.

The top DIY mistake across all generations was starting a project without the necessary supplies or tools. Gen Xers tended to admit to picking the wrong paint, and millennials were the most often to skimp on materials, the survey showed.

© Clovered

Thirty-two percent of DIYers admit to having to contact a family member or friend to help them finish a home improvement project. Seventeen percent said they then hired a professional contractor to complete the job.

One in four homeowners who attempted to DIY also injured themselves. The most common injuries were “cutting myself with a sharp tool or project material” (74.9%), “hitting myself with a hammer or other tools” (58.4%), and “tripping over materials” (49%).

© Clovered