How to compare San Diego pressure-washing companies.
A short checklist for telling real operators from contractors who picked up a consumer machine last week. Use it before you book anyone, us or otherwise.
Last updated: 2026-04-23
The six questions that separate pros from part-timers
- How long have you been washing San Diego homes, and can you share recent local references?
Pressure washing is exterior cleaning, not construction, so California has no state contractor license for it. Anyone can buy a machine, which puts the vetting weight on track record. Ask for recent jobs in your area, look for marked vehicles, and treat a bare "licensed and bonded" claim as a prompt to ask what it actually means.
- Do you soft-wash roofs, or pressure-wash them?
Pressure washing asphalt shingles voids manufacturer warranties and strips granules. The Asphalt Roofing Manufacturers Association (ARMA) mandates low-pressure soft wash for residential roof cleaning. If the answer is "we pressure-wash everything," find someone else.
- Hot water on concrete, or cold?
Hot-water surface cleaning lifts oil, grease, and set-in organic staining that cold water simply can't. It also eliminates wand marks and "zebra stripes." If a bid is unusually cheap, it's often cold-water only.
- Do you carry general liability and workers' comp?
Ask for a current Certificate of Insurance (COI) listing your property as an additional insured. If a worker is injured on your property and the contractor doesn't carry workers' comp, the liability shifts to you.
- How do you handle wash water?
Commercial pressure-washing wash water is regulated by EPA's NPDES program and San Diego's MS4 stormwater permit. Parking-lot cleaners are supposed to capture water, not send it down storm drains. Residential rules are looser; commercial jobs need a real answer.
- Is the price a flat rate or an hourly estimate?
"Starting at" prices and hourly estimates protect the contractor, not you. Ask for a flat-rate written quote after an on-site estimate. A pro can tell from a quick look what a driveway will cost.
What Rinse Pro SD answers
We built this page because homeowners ask these questions a lot. Here are our answers in writing:
| Insurance | Pros we match carry their own GL + workers' comp. Request a COI from the pro before the first visit. |
|---|---|
| Roof cleaning method | Soft wash only, per ARMA guidelines. Ground-level application from a pole gun, never walking on shingles or tile. |
| Concrete method | Hot-water surface cleaner standard on every concrete job. Eliminates wand marks, lifts oil. |
| Wash water handling | Residential: standard municipal rules. Commercial: wash-water capture available on request (stormwater-compliant). |
| Pricing | Flat-rate written quote after free on-site estimate. No hourly billing, no "starting at" traps. |
| Service area | All 67 cities across San Diego County. |
| Phone | (858) 925-5546 |
Ready to skip the comparison shopping?
Free on-site estimate, soft-wash trained pros, flat-rate written quote. Most jobs scheduled the week after the estimate.