Create your database of vendors that you highly recommend, see what kind of discounts they will provide to your clients and promote to your prospects as a value add and a great service. Your vendors will love you as you refer and promote them and may even feel compelled to refer to you as a thank you (this is the powerful principle and mental trigger called "reciprocity"!
Find Great Vendors
Build a list of vendors that your clients are likely to use for their home repairs, upgrade, move, etc.
Promote and Refer
When possible promote these vendors and build their value and then refer them when appropriate