One call. Every trade.
Zero finger-pointing.
OH Building Services is Southern California's single-source facilities partner — engineering, GC, janitorial, HVAC, plumbing, restoration, and grounds under one accountable PM. Replace 8 vendors with 1.
<2h
Emergency SLA
12M
Sq ft serviced
250+
Properties
6
SoCal counties
─ Verified credentials
Every license, certification, and insurance policy verifiable in seconds.
CSLB Class A
Engineering Contractor · Lic. #[XXXXXX]
CSLB Class B
General Contractor · Lic. #[XXXXXX]
IICRC Certified Firm
Water · Mold · Fire restoration
DIR Registered
Public works prevailing-wage compliant
$5M GL Insurance
Bonded · Auto · Workers' comp
EPA Section 608
All HVAC techs certified
Trusted by property managers, HOAs, hospitals, schools & Fortune 500 operators across Southern California
─ By the numbers
A decade of SoCal facilities, in figures.
Real numbers from real properties — what we maintain, how fast we respond, how often we keep our word.
0+
Years in business
0+
Properties maintained
0M+ sq ft
Under management
0+
Work orders completed
<90 min
Avg. emergency response
0.7%
On-time completion
0%
Client retention
0
Counties covered
─ Services
Every trade. One vendor. Zero finger-pointing.
Stop managing a dozen subcontractors. OH Building Services runs the entire facility maintenance stack — licensed, insured, and accountable to a single point of contact.
Programs, Planning & Assessments
Audits, inspections, preventative maintenance plans, 24/7 emergency response.
ExploreConstruction & Building Trades
A & B licensed. Concrete, painting, decks, handyman, full TI build-outs.
ExploreMechanical · Plumbing · Electrical
HVAC, plumbing, leak detection, lighting, EV charging install & service.
ExploreCleaning, Janitorial & Restoration
Day porter, floor care, window, IICRC-certified water & fire restoration.
ExploreExterior, Grounds & Specialty
Landscape, tree, parking lot, pest control, waste & recycling.
Explore─ How it works
From first call to first invoice in 30 days.
No drawn-out RFPs. No procurement gauntlet. Just a real walkthrough, a written scope, and a team on your property by next month.
Free 90-minute walkthrough
A senior PM walks every system on your property — roofs, mechanicals, common areas, life-safety — and benchmarks current condition against your reserve study or capital plan.
- No sales pitch
- No commitment
- Photo-documented findings
Written program proposal in 7 days
Tiered scope mapped to your operating budget. Flat monthly retainer for routine work, pre-disclosed unit rates for on-demand. One number, no surprises.
- Reserve-study aligned
- Board-ready format
- Three-bid transparency on capital items
One PM, one team, one invoice
Dedicated account manager, W-2 crews, monthly photo report. Most clients consolidate 6–10 vendors into a single OH program within the first 90 days.
- <2-hour emergency SLA
- Single monthly invoice
- Quarterly business review
─ Industries
Built for the buildings you run.
─ Why OH
The opposite of a vendor headache.
We replaced subcontractor chaos with a single accountable team. Here's what that actually looks like.
Why OH Building ServicesLicensed at the Highest Level
Dual A & B California contractor licenses plus IICRC certification.
24/7 Emergency Response
Sub-2-hour site arrival SLA across all six SoCal counties.
Single Point of Contact
One dedicated PM owns your account end-to-end. No vendor merry-go-round.
Transparent Reporting
Digital work orders, photo documentation, live dashboards.
─ Proof, not promises
Real properties. Measurable outcomes.
A sample of recent SoCal engagements. Anonymized at the request of our clients — but the numbers are real.
HOA · Mid-rise condo · Irvine, OC
Six vendors → one program. $148K saved in year one.
- Annual savings
- $148K
- Vendor count
- 6 → 1
- Emergency callouts
- −72%
Commercial · HVAC program · Long Beach, LA
Class-A office tower cuts HVAC repair spend 31% in 11 months.
- Repair spend
- −31%
- After-hours calls
- −68%
- Avg response
- 47 min
99.9%
SLA met across portfolio Q4 2025
─ Real crews. Real accountability.
W-2 employees. Not day-labor.
Every technician on your property is a uniformed, background-checked OH employee — trained on your building, briefed on your priorities, and accountable to your dedicated PM.
- Background-checked & drug-screened
- OSHA 10/30 trained
- Uniformed & badged on every visit
- Photo documentation of every work order
"We consolidated eight vendors down to one. Response times dropped, costs dropped, and our portfolio managers actually pick up the phone again."
Stop juggling vendors. Start running a better building.
One assessment. One proposal. One team accountable for everything.