─ Areas Served · Ventura County
One facilities partner. Coast to canyon across Ventura County.
From the Conejo Valley office corridor to Oxnard agricultural and industrial, from Ventura beachfront to Simi Valley master-planned communities — OH Building Services keeps Ventura County properties running with W-2 crews stationed in the county.
- Emergency SLA
- <2h
- Ventura properties
- 45+
- Sq ft served
- 3.8M
- Local W-2 crew
- 22
─ The Ventura reality
Built for how Ventura County actually operates.
Ventura County is a small but high-value market — the Conejo Valley is one of California's densest concentrations of biotech and corporate HQ (Amgen alone), Oxnard runs the largest agricultural-industrial mix on the South Coast, and Ventura/Ojai serve as the high-end coastal and hospitality anchor. Wildfire risk (Thomas, Woolsey) and coastal corrosion (Oxnard, Port Hueneme) shape every facilities decision here.
We staff Ventura County from three yards — Camarillo, Thousand Oaks, and Simi Valley — so most county dispatches see a tech in under an hour. Our techs work the city desks (Thousand Oaks, Oxnard, Ventura, Simi each run their own permit centers) and we carry wildfire-hardening expertise (Class-A roofing, ember-resistant vents, defensible-space landscape) for foothill ZIPs.
Whether you're a corporate REIT in the Conejo Valley, an agricultural operator with cold storage in Oxnard, or a Ventura beachfront hospitality asset — one program manager, one schedule, one invoice, every trade.
─ Most-requested in Ventura
The trades Ventura County property teams call us for first.
HVAC service & retrofit
Coastal-corrosion-rated equipment for Oxnard, biotech support HVAC for the Conejo Valley.
Learn morePlumbing & leak response
Hard-water mitigation, slab-leak diagnostics, 24/7 water-intrusion response.
Learn moreJanitorial programs
Day-porter and night programs for Class-A, biotech support, and HOA common areas.
Learn moreGrounds & landscape
QWEL-certified irrigation, defensible-space programs, drought-tolerant conversions.
Learn moreCapital projects & GC
Wildfire hardening, Class-A roofing, TI buildouts under one CSLB A & B license.
Learn moreRestoration & reconstruction
IICRC-certified water, fire, smoke, and mold response — wildfire-experienced crews.
Learn more─ Industries we serve in Ventura
From beachfront condos to industrial parks.
─ Coverage map
Every city in Ventura County. No corner uncovered.
Simi / Moorpark
- Simi Valley
- Moorpark
- Santa Rosa Valley
- Bell Canyon
Camarillo / Oxnard Plain
Santa Clara River Valley
Don't see your city? We cover every ZIP in Ventura County. Call us.
<2-hour emergency arrival
24/7 dispatch with regional crews stationed inside Ventura County — water, fire, sewage, electrical, lockout.
Local crews, local trucks
W-2 employees who live and work in Ventura County. Stocked vans means most jobs done same day, not scheduled out.
One PM for your portfolio
Whether you have one building in Irvine or twelve from San Clemente to Brea — one program manager, one invoice.
"After the Woolsey fire we needed a vendor who understood wildfire hardening, not just landscaping. OH ran a defensible-space audit, replaced our combustible vents, and managed the Class-A roof recoat across all 18 buildings in one season."
─ Nearby coverage
Also serving the counties next door.
─ FAQs
Common questions from Ventura property teams.
Don't see yours? Call us — we like hard questions.
(888) 303-5551Every ZIP in Ventura County — Conejo Valley, Oxnard Plain, coastal, Simi/Moorpark, and the Santa Clara River Valley. We dispatch from Camarillo, Thousand Oaks, and Simi Valley yards.
Yes. We carry Class-A roofing, ember-resistant vent installation, and defensible-space landscape expertise — built up through post-Thomas and post-Woolsey reconstruction work across foothill Ventura County.
W-2 employees who live in Ventura County. Background-checked, drug-screened, OSHA-10 minimum. Specialty subs (elevator, fire-alarm cert) are vetted and disclosed on every proposal.
Sub-60-minute typical from our Thousand Oaks hub for the Conejo Valley. Sub-45 from Camarillo for central county. 24/7 dispatch year-round.
CSLB Class A and B, C-10, C-20, C-36, IICRC firm certification, DIR registration. $5M general liability, $5M auto, statutory workers' comp, $1M umbrella. License numbers on every proposal.
Yes. We routinely run portfolios that cross the Conejo Valley into Calabasas / Agoura / Westlake Village (LA County). One program manager, one MSA, one invoice — county lines don't change the model.
The same crew, every visit — across all of Ventura County.
Free walkthrough, written findings, custom proposal — all within a week.