Here is the short answer, then the long one.
Plans here start at $200 a month. The full plan, which is the website work and the search work together, runs $750 to $1,500 a month. The agencies that show up on page one for "Castle Rock SEO" and actually print a price charge $500 to $2,100. The Denver agencies I am asked to compare against quote $1,500 to $3,500 a month, on a twelve month agreement, usually after a sales call rather than on the page.
That is the whole market. Now the part that matters, which is what any of those numbers buys.
What the agencies that rank for Castle Rock SEO actually charge
I read every page on the first page of Google for this search on the 26th of September and wrote down what each one printed. Most printed nothing. "Custom pricing," "get a proposal," "book a strategy call." Two did print numbers, and here they are next to the national average and mine.
Prices as printed on each company's Castle Rock page, read 26 September 2026. The national average is WebFX's 2026 local SEO figure.
Two things stand out. The first is that the page that ranks highest for this town is also the most expensive, at about $2,000 a month for a business of any size, which tells you rankings and value are not the same thing. The second is that the spread runs ten to one. You cannot spend ten times more on a plumber and get ten times more plumbing. You can in this business, because "SEO" is a word that covers everything from a monthly PDF to a rebuilt website.
So the price is nearly useless on its own. The question is what arrives each month.
What you are actually paying for
Every dollar of an SEO fee is somebody's hours. The only question is what those hours produce. In a plan that works for a Castle Rock service business, they produce four things you can see:
Pages. A page for each service you sell, and a page for each town you drive to. Not a report about pages. The pages themselves, indexed, in your name. This is the main output every month, and it is the part most plans skip because it is the hardest part.
Listing work. Your Google Business Profile, the box on the map with your hours, reviews and phone number. Its main category decides which searches you can appear for at all. It gets set up right, then kept current with posts, photos and services, because a listing that never changes slides down the map.
Reviews. A repeatable ask while the customer is still happy. Reviews are the one ranking signal that also closes the sale for you, which makes them the best value item on this list.
Fixes. Citations where your phone number is wrong in three places, broken links, slow pages, whatever the last audit found. Unglamorous, and the reason the rest keeps working.
Here is what that looks like when it lands. This is a Castle Rock tree service's Google listing in August 2026, from his own account.
Flemings Tree Care, Castle Rock. 41 calls from the Google listing in August, up from 26 in July. The client owns the account; I just report it.
That number is the product. Not the ranking that produced it, not the report that describes it. The calls.
The starting plan, and what it is for
The $200 plan is the entry point, and I added it because some owners look at $750 and stop reading. What it covers is set per business and put in writing before anything starts, because a one-truck handyman and a six-crew roofer do not need the same first month. What it is not is a cut-down report. It is real work on the thing that most often needs work first, which for most small Castle Rock businesses is the Google listing.
One month of listing work, on its own, can move a phone. This is a Centennial gym's listing, April to May of this year, with nothing changed on the website that month.
Mile High CrossFit, Centennial. About 2 calls in April, 12 in May, after one month of work on the listing. Not a home service trade, but the listing does not care.
What a fair price should show you, month by month
Whatever you pay, this is the timeline. It is the one I put in writing before month one, and it is the one to hold any agency to.
The honest timeline. Anyone shortening it is guessing.
Castle Rock tends to run a little quicker than this, because fewer companies target Castle Rock searches properly and the town is small enough that one good listing covers most of it, from The Meadows down to Crystal Valley. But quicker is not instant. If an agency promises page one in thirty days, ask which page and for which search, because it is almost always your own business name.
The check that tells you if you are overpaying
You can run this in an hour and it needs nothing from your agency.
Pull the ranking report they send you. Take every term where you sit in the top three. Look up the monthly search volume behind each one, which is public. Add it up. Then put that total next to your calls.
If the volume is tiny, the rankings are decoration. Every line on the report can be true and the whole document can still be describing nothing. That is not fraud. It is what happens when a business is billed for activity and a report is the cheapest evidence of activity there is. Flemings paid three agencies before me, and every one of them sent a report.
For contrast, here is what the tracked terms looked like for his site by August. Every one of them is a phrase people in Castle Rock actually type, and every one has its own page.
Six searches, six pages, March to August 2026. Tree service castle rock went from 18th to 1st.
The other price to compare against
The number most Castle Rock owners already know is not an SEO fee. It is what they pay for leads. Angi and Thumbtack run $15 to $85 a lead, and the same lead goes to three to eight other contractors at once, so owners report $150 to $400 per booked job once the lead is shared.
Published 2026 lead-cost comparisons. A site and listing you own do not charge you per call.
That is the fair comparison for an SEO fee. Not "is $750 a lot," but "what does $750 of pages and listing work produce against $750 of shared leads." The first one compounds and stays yours. The second one stops the day you stop paying, and it was never yours.
What you should not be paying for
Three things, and they are common enough here to name.
A twelve month agreement. There is a short ramp at the start because the first months carry the heaviest work, and after that a plan should run month to month. Twelve months is the agency asking you to pay for the result before it exists.
A Google listing registered under the agency's account. Firing them should not mean losing your own listing. It lives in your Google account, or you do not sign.
A report as the product. A report is fine as a receipt. If it is the only thing that arrives each month, you have bought paperwork.
Where to start, for $47
Before any of this, I run a teardown. It is $47, free if you go ahead with any service, and it is yours to keep either way. It shows you the three companies in your trade beating you on Google in Castle Rock and what their sites and listings have that yours does not. This is roughly what one looks like, for a Highlands Ranch electrician against the competitor who was beating him.
A teardown table. Pages, links, reviews, map rank, side by side. The gap is usually obvious once it is in one place.
It answers the cost question better than this article can, because it tells you what the work is for your business specifically, and the number that follows it goes in writing. The full picture of the monthly plan is on the SEO in Castle Rock page, and the map side of it, the listing and reviews and the pages that feed the map, is on Local SEO in Castle Rock. If you would rather see every number line by line first, the pricing page has all of them.
