If you're 30 days late in paying a mortgage, you can repair your credit in approximately 9 months to three years. The higher your score initially, the longer it will take you to fully recover from the setback. Unfortunately, there is no quick way to repair or fix your credit. The time it takes to rebuild your credit history depends on the severity of your credit problems and how your credit history was affected.
It could take just a few months or it could require several years of commitment. In either case, there are steps you can start taking right away to help get your credit back on track. You can handle the credit repair process yourself or hire a professional credit repair company to guide you through the process. As the Federal Trade Commission explains, there's nothing a credit repair company can do for you that you can't do for yourself.
The reason you might want to hire one is if you're not comfortable with the process or don't want to spend most of your time following it to the end. Ultimately, while you can build your credit faster by focusing on making payments and reducing your debt, the key factors in improving your credit are time and patience.