<human>:  How can I refinance my house with a lower interest rate?
<bot>: To refinance your house with a lower interest rate, you will need to shop around and compare mortgages from different lenders. Make sure to check the current market rates and look for any special offers. You may also be able to negotiate with your current lender to reduce the interest rate on your mortgage. It can be beneficial to work with a reputable mortgage broker, who can help you find the best rate available.