Field note 01
The worked numbers for common 95391 array sizes
At $58 per module: 8 panels is $464, 12 is $696, 18 is $1,044, 24 is $1,392, and 30 is $1,740 — then cleanup from $200 on top.
Most Mountain House tract homes fall between 12 and 20 modules, so the mesh line usually lands between $696 and $1,160. Larger Cordes and Hansen lots with a bigger roof plane run to the mid-20s.
Small arrays hit the standalone minimum instead. A four-module carport system calculates to $232 of mesh, so it books at the $297 minimum.
Cleanup is the variable line. A first-season pair with one nest is at the $200 end. Several seasons of colony under a 24-module array is a substantially bigger removal job, and it is quoted from inspection photographs rather than averaged.
Field note 02
The four things that move the number
Module count, cleanup volume, array complexity, and whether you bundle a panel wash or roof work into the same trip.
Module count is linear and transparent. Complexity is not billed per corner — split-plane staging and inside-corner fabrication sit inside the per-panel rate, which is why we do not quote a lower headline number and add surcharges later.
Cleanup volume is the honest unknown before inspection. It is the reason a phone quote for proofing is either padded or incomplete, and we would rather show you a photo of your own array cavity.
Bundling is where money is actually saved. Panel washing drops from $20 to $10 per module on a proofing visit. Tile roof soft washing on the same mobilization avoids a second trip out I-205 entirely.
Field note 03
How this compares with doing nothing, and with deterrents
A one-time proofing bill sits against recurring deterrent costs, lost production from a heat-trapped array, and eventual cleanup that grows every season.
Deterrent products are recurring by design — reapplied gel, replaced tape, re-secured spikes — and they get habituated to, so the spend continues while the nesting does.
Doing nothing has a compounding cost too. Cleanup volume grows every breeding season, nesting debris keeps damming the tile drainage plane, and droppings sit on junction boxes and connectors.
There is also the production side. Debris packed against module backsheets holds heat in on exactly the hot Mountain House afternoons the system was sized around.
Field note 04
What the written Mountain House quote shows
Module count, mesh at $58 each, a separate cleanup figure, any bundled lines, and the total — same-day and in writing before work is scheduled.
No line item is a percentage of another, and there is no trip charge inside 95391. What you see is measured or counted quantities at published rates.
If the array cannot be inspected the same day, you get the mesh line firm and the cleanup as a clearly-labelled range, and the range is replaced by a figure before anyone starts work.
The $297 standalone minimum is stated on the quote whenever it applies, so a small array never turns into a surprise at the end.
