A catch basin only works because of the empty space beneath the outlet pipe. That sump is designed to catch sediment before it reaches the storm line — and once it fills, the basin stops being a basin and becomes a hole that water sits in.
We clean them properly with a vacuum truck: the entire sump evacuated, not just the surface debris a shovel can reach. Skimming the top is the most common way this job gets done badly, because the lot looks fine afterward and the basin still has no working capacity.
What a catch basin cleaning includes
- Grate removal, plus inspection of the frame and casting for settling or cracking
- Full vacuum evacuation of sediment, sand, leaves, and standing water from the sump
- Check of inlet and outlet pipes for visible blockage or root intrusion
- Measurement of sump depth and note of structural issues — cracked walls, loose brick, failing mortar
- Proper disposal of removed material at a permitted facility
- A written record of what was serviced and what we found
How often should catch basins be cleaned?
The working rule is to clean before the sump is more than half full — the red line on the diagram above. Past that point the basin's remaining capacity disappears quickly, and a single heavy storm can push it over.
| Property type | Typical interval | Why |
|---|---|---|
| Office / medical lot | Once a year | Light traffic, mostly leaf and winter sand load |
| Retail plaza | Twice a year | Heavy traffic tracks in grit; ponding hits customer parking |
| Industrial / warehouse | 2–3 times a year | Truck traffic carries far more material onto pavement |
| Near construction or bare soil | Quarterly while active | Runoff carries raw sediment straight into the sump |
| Apartment / HOA | Once or twice a year | Depends heavily on tree cover and lot size |
If you don't know when yours were last done, that's usually the answer in itself — and it costs nothing to have us look. See what cleaning typically costs before you call, if you'd rather know the range first.
What happens if you skip it
Nothing, for a while. That's what makes drainage easy to defer. Then the failures arrive in sequence: ponding after ordinary rain, ice in the same spot every winter, asphalt lifting where water sat, and eventually sediment packed into the storm line itself. Clearing a plugged line with jetting costs several times what cleaning the basin would have, and replacing failed pavement costs several times that again.
Quoted from the address, usually same day
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Call (585) 514-5978Common questions
How long does cleaning one catch basin take?
Typically 15 to 30 minutes per structure once the truck is set up. A lot with a dozen basins is usually a half-day job, and we work around your traffic rather than closing the lot.
Do you need to close the parking lot?
No. We work basin by basin and cone off only the structure we're on. For busy retail we'll schedule early morning or after close so customer parking is never affected.
What do you do with the material you remove?
It goes to a permitted disposal facility. Catch basin sediment carries road salt, hydrocarbons, and heavy metals from vehicle traffic, so it can't simply be dumped on site or into a landscape bed.
Can you clean basins in winter?
Frozen sumps are difficult and sometimes impossible to fully evacuate. Late fall is the smarter booking. If you're already flooding mid-winter we'll come out, but plan the real cleaning for spring.