Like I said, I don't do SEO for a living, but I know a little bit. I wrote a short "how to" about 10 years ago to help fellow photographers (
https://www.imagesinthebackcountry.com/blog/2012/11/23/seo-for-the-photographer/). Basics are the same be it photography, dog groomer or air duct cleaning.
Your Title element should be about 70 characters or less, and the most important keywords should be first. Currently you have 'Aaron's Air - Air Duct Cleaning | Dryer Vent Cleaning | Duct Sealing Services Dayton, OH'. I would use something like 'Air Duct Cleaning Sealing Services Dayton OH' so your not duplicating your keywords. Nothing really wrong with duplicating, but not needed (remember that 70 character).
Your home page title looks to be this: 'Experienced Air Duct and Dryer Vent Cleaning in Dayton, Ohio'. Code-wise, it's wrapped in a <h3>, which should be a <h1>. Each page should have ONE <h1> tag. It tells the search engines that <h1> is the most important thing on that page. Like a newspaper. You can change the physical font-size of the <h1> using CSS.
I did a search using Duck Duck Go and 'air duct cleaning dayton oh' was on the bottom of the first page and 'dryer vent cleaning dayton oh' was #3. Since I'm not local to you, it's probably going to be different for you.