Case Study · Crawlspace & Foundation · Google PPC
A crawlspace remediation and foundation repair contractor turned a modest paid search budget into a quarter-million dollars of sold work in five months — $222,990 closed on $11,229.60 in ad spend, a return of nearly twenty to one.
Across a five-month window, paid search produced 171 tracked leads. 86 of them were worth quoting, generating $573,260 in written quotes and $222,990 in confirmed sold work — against $11,229.60 in media spend. Put plainly: it cost about five cents in advertising to book a dollar of revenue.
Crawlspace and foundation work is a category where almost nobody browses. Homeowners search after something has already gone wrong — standing water under the house, a musty smell coming through the vents, a stair-step crack in the brick, a floor that has started to slope. Volume is low, seasonal, and spikes hard after heavy rain.
That makes the category unforgiving in both directions. Tickets run from a few thousand for encapsulation and a dehumidifier to five figures for piering and structural stabilization, so a single won job pays for months of advertising. But the same keywords also pull renters, DIYers, material shoppers and homeowners well outside the service area — traffic that costs exactly as much per click and is worth nothing.
The budget was kept deliberately small — roughly $2,300 a month — with a clear mandate: prove the channel on sold revenue before scaling it.
Every lead graded, matched to its quote, and matched again to the sold job. Nothing below is a raw conversion count.
$573,260 86 quotable leads
$222,990 38.9% of quoted
$11,229.60 2.0% of quoted
How the 171 leads arrived — same period.
| Source | Type | Leads | Share |
|---|---|---|---|
| Phone Call | phone | 129 | 75.4% |
| Web Form | form | 27 | 15.8% |
| Text Message | message | 13 | 7.6% |
| Other | other | 2 | 1.2% |
| Grand Total | 171 | 100% | |
Every call and form reviewed and marked by an actual human.
| Status | Leads | Share | Cost Each |
|---|---|---|---|
| Quotable | 86 | 50.3% | $130.58 |
| Not Quotable | 84 | 49.1% | $65.67 |
| Pending | 1 | 0.6% | — |
| Grand Total | 171 | 100% | $65.67 |
With a budget this small, there is no room for waste. Four decisions did most of the work.
Just under half of every lead in the window was graded not quotable — wrong county, renters, price-shopping on materials, or jobs outside what the crew takes on. At $65.67 a lead, that is roughly $5,500 of budget spent on calls that were never going to become a quote.
That is not a failure. It is the next gain. Cutting that waste in half without touching quotable volume would bring the cost of a quotable lead from $130.58 down to roughly $99 and free up budget to bid harder on the structural searches where the tickets are largest.
The account produced a 19.9x return while half the spend was still being wasted. For a contractor in this trade the math is simple: one encapsulation job pays for a month of advertising, and one foundation stabilization pays for the year. This is the argument for scaling the channel — not for calling it finished.
Crawlspace Encapsulation
Foundation Repair
PPC Management
Call Tracking
Revenue Attribution
Home Services
ROAS Optimization