If you run a septic company and don't have a website, there's a good chance the reason isn't that you don't see the value — it's that somewhere along the way you got the idea it costs $10,000 or more. That number gets repeated a lot in small-business circles, and it's simply not accurate for a business like yours.
For a single-location septic company covering one service area, a properly built website with the basics done right runs $750–3,000, depending on how much content and setup work is involved. That range covers:
A $99-a-month drag-and-drop site builder isn't the same purchase as the option above, even though it looks similar on the surface. The gap shows up in three places: these builders rarely let you control page speed (slow sites lose both rankings and impatient mobile visitors), they don't set up Google Business Profile or local schema correctly on their own, and the templates are frequently reused by hundreds of other small businesses with only the name swapped — which does nothing to help you stand out in local search results.
Above the $750–3,000 starting range, cost mainly goes up with competition, not complexity. A septic company in a market with five established local competitors and active paid advertising needs more ongoing SEO work to be found than one in a market where nobody has bothered to claim their Google Business Profile yet. That's a market-condition cost, not a website-complexity cost — and it's exactly what a free audit is supposed to tell you honestly before you spend anything.
If a $10,000+ figure is the reason you've put this off, it's worth getting a second, honest number first. The gap between "no website" and "a website that actually brings in calls" is usually smaller — in both cost and effort — than it looks from the outside.