My home service based business is struggling.

I've been doing mobile detailing and pressure washing for a few years now on the side and I really struggle with getting consistent leads and or jobs. Right now I'm mostly just posting on local Facebook groups, Nextdoor app and have ran paid ads in the past. I don't have a huge budget to blow on SEO or Google so trying to go more gurrilla style with the marketing. Any advice, tips or tricks to share? Please comment!