─ Areas Served · Los Angeles County
One facilities partner. Every district in LA County.
From DTLA high-rises to South Bay industrial parks, from Beverly Hills medical office to SFV master-planned communities — OH Building Services keeps LA County properties running with W-2 crews stationed across the basin and a sub-2-hour emergency arrival SLA.
- Emergency SLA
- <2h
- LA properties
- 210+
- Sq ft served
- 14M
- Local W-2 crew
- 84
─ The LA reality
Built for how Los Angeles County actually operates.
Los Angeles County is the largest, most diverse property market in California — 88 cities, 4,000+ square miles, and a building stock that ranges from 1920s art-deco bank towers in DTLA to ground-up mass-timber creative office in Culver City to 1970s garden apartments across the SFV. No two assets behave alike, and the LA permit, fire-life-safety, and AQMD regimes are unforgiving.
We staff LA County out of four yards — Vernon, Gardena, Van Nuys, and El Monte — so most dispatches see a tech in under an hour regardless of basin geography. Our PMs work LADBS, LAFD, and city-specific desks (Beverly Hills, Santa Monica, Pasadena, Long Beach all behave differently) every week and pull permits as a deliverable, not an afterthought.
Whether you're a REIT with a Class-A trophy in Century City, an asset manager running a 30-property South Bay industrial sleeve, or a CAM with a master-planned community in Santa Clarita — we run the same playbook: one program manager, one schedule, one invoice, every trade.
─ Most-requested in LA
The trades Los Angeles County property teams call us for first.
Janitorial programs
Class-A day-porter and night-crew programs across DTLA, Century City, and the Westside.
Learn moreHVAC service & retrofit
Title-24 retrofits, BMS integration, coastal-corrosion-rated equipment for South Bay.
Learn morePlumbing & leak response
High-rise riser work, slab-leak diagnostics, 24/7 water-intrusion response basin-wide.
Learn moreGrounds & landscape
QWEL-certified irrigation, AB-1572 turf conversions, mature-tree care across the SFV/SGV.
Learn moreCapital projects & GC
TI buildouts, repipes, roofing, parking-lot reseal under one CSLB A & B license.
Learn moreRestoration & reconstruction
IICRC-certified water, fire, smoke, and mold response with same-day mitigation.
Learn more─ Industries we serve in LA
From beachfront condos to industrial parks.
─ Coverage map
Every city in Los Angeles County. No corner uncovered.
Central LA
- Downtown LA
- Mid-City
- Koreatown
- Hollywood
- West Hollywood
- Silver Lake
- Echo Park
- Los Feliz
Westside
San Fernando Valley
San Gabriel Valley
Antelope & Santa Clarita Valleys
- Santa Clarita
- Valencia
- Stevenson Ranch
- Palmdale
- Lancaster
- Newhall
Don't see your city? We cover every ZIP in Los Angeles County. Call us.
<2-hour emergency arrival
24/7 dispatch with regional crews stationed inside Los Angeles County — water, fire, sewage, electrical, lockout.
Local crews, local trucks
W-2 employees who live and work in Los Angeles 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.
"Our trophy asset in DTLA had three vendors and zero accountability. OH took it over, and we got one PM, weekly photo reports, and a 30% drop in tenant complaints in the first quarter."
─ Nearby coverage
Also serving the counties next door.
─ FAQs
Common questions from LA property teams.
Don't see yours? Call us — we like hard questions.
(888) 303-5551Every ZIP in LA County, basin-wide. We dispatch from four LA yards (Vernon, Gardena, Van Nuys, El Monte), so most jobs see a tech within an hour for emergencies and same- or next-day for scheduled work — including Antelope Valley and Santa Clarita.
Our core trades are W-2 employees who live across LA County. Background checks, drug screening, OSHA-10 minimum, uniformed and badged. We use vetted subs only for specialty trades (elevator, fire-alarm certification) and disclose them on every proposal.
Sub-2-hour SLA county-wide, 24/7. DTLA, Westside, and South Bay typically see a tech in 30–45 minutes from Vernon or Gardena. SFV and SGV typically 45–60 minutes from Van Nuys or El Monte.
Yes. Our PMs pull LADBS, LAFD, AQMD, and city-specific permits weekly (Beverly Hills, Santa Monica, Pasadena, Long Beach all run their own desks). We manage permit timelines as a deliverable on every capital project.
CSLB Class A (General Engineering) and Class B (General Building), C-10, C-20, C-36 specialty licenses, IICRC firm certification for restoration, DIR registration for prevailing-wage projects. $5M general liability, $5M auto, statutory workers' comp, $1M umbrella. License numbers on every proposal; COIs additional-insured within one business day.
Yes — that's our core model. One program manager, one master service agreement, one monthly invoice with line-item detail per property. We manage portfolios with 20+ assets across DTLA, Westside, South Bay, and the Valleys under a single PM.
The same crew, every visit — across all of Los Angeles County.
Free walkthrough, written findings, custom proposal — all within a week.