What we fix
Pumps and rebuilds
General Pump, Comet, AR and Udor — seals, valves, plungers and full rebuilds, pressure-tested before pickup. We stock the kits, so most rebuilds are back in 2–3 days.
Unloaders and valves
Unloader tuning and replacement, thermal relief, pop-offs, check valves and downstream injectors — the parts behind most "it pulses" and "it won't hold pressure" calls.
Engines
Honda GX-series repair and maintenance from an authorized Honda Engines dealer; when a repair isn't worth it, a genuine GX replacement engine goes on the same visit.
Hot water and burners
Coils, igniters, fuel pumps, thermostats and fuel systems on hot-water units — the finicky systems most shops won't touch.
Hose, guns, plumbing and rigs
Hose repair and replacement, gun and wand service, fittings and plumbing, plus welding on trailer frames, reel mounts and tank cradles.
Rates — simple and flat
| Work | Rate | Notes |
|---|---|---|
| Diagnostics, maintenance & repairs | $100/hour | $100 minimum on all service |
| Hot water system work | $120/hour | Coils, burners, igniters, fuel systems |
| Welding & fabrication | $120/hour | Rigs, trailers, mounts, repairs |
You pay for the hours it takes, quoted by text before we start. Diagnostics count toward the $100 minimum — if the fix takes the hour, the look-over was free.
How drop-off works
- 1 · Drop it in Manassas. 11900 Livingston Rd Ste 139 — Mon–Fri 7am–6pm, Sat 9am–3pm. Dolly at the door, no appointment.
- 2 · Approve by text. Same-day diagnosis with a straight quote.
- 3 · Keep working meanwhile. Rental units from the same counter — repair customers get priority.
Before you bring it in
Two quick checks save a trip. Pulsing with low pressure is usually a clogged nozzle or an inlet screen, not a pump — pull the tip and clean it. No pressure at all with the engine running fine is often an unloader or a worn pump; that one is ours. And if the engine surges or won't start after sitting, stale fuel is the first suspect before anything mechanical.
Homeowner units are welcome alongside contractor rigs. If a repair isn't worth it against the machine's value, we'll say so before you spend the hour. We also handle mowers, blowers, generators and other small-engine equipment at the same counter.
FAQ
Where can I get a pressure washer repaired near Manassas?
Capital Pressure Supply's repair shop is at 11900 Livingston Rd Ste 139, Manassas VA. Drop off Mon–Fri 7am–6pm or Saturday 9am–3pm; diagnosis is same-day with a quote by text.
How much does pressure washer repair cost?
Labor is $100/hour with a $100 minimum on all service, including diagnostics. Hot-water system work and welding are $120/hour. You approve the quote before we start.
Do you rebuild General Pump, AR and Udor pumps?
Yes — General Pump, Comet, AR and Udor. We stock rebuild kits, so most pumps are back in 2–3 days, and every rebuild is pressure-tested before it leaves.
Do you repair Honda pressure washer engines?
Yes — Capital Pressure Supply is a Honda Engines authorized dealer. We service GX-series engines and stock genuine GX replacement engines for same-visit swaps. Equipment engines only; we don't work on cars.
Can I rent a pressure washer while mine is in the shop?
Yes — cold and hot water units by the day or week from the same counter, and repair customers get first claim on the fleet.