I just watched Jakob change out my friends garage door spring like it was his job. We considered changing the spring ourselves but couldn't find anybody that would sell us the spring. He showed up on time, he completed the job in like 30 minutes and he explained to us that it's a better idea to hire a professional to do spring repair because if could be dangerous or we could break something else trying to do it ourselves. Fast, professional, great work. I definitely would call this company again.