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Commercial AC installation in Los Angeles
Commercial AC in Los Angeles, from rooftop package units to split systems for shops and offices, is quoted per building after a site survey; no LA source this site uses publishes commercial prices. This site's quote form is built for homes, and commercial partners are not yet confirmed.
Reviewed · 3 named sources · No named reviewer yet; see our editorial policy.
What this site can and cannot route
The quote form is residential-first, and no partner contractor for commercial work has been confirmed. If you send a commercial request and nobody covers it, we tell you by email rather than passing it on.
At a glance
What to have ready before a survey
- The data plate of each existing unit: model, tonnage, fuel and electrical rating.
- Roof access details and any landlord or property manager approvals needed.
- The building's electrical service size, if you know it.
- Occupancy and hours, which set ventilation needs and when work can happen.
- Any comfort complaints by zone: the reason a straight swap may not be the right answer.
What a commercial AC job involves
- Rooftop package units on shops, offices and restaurants, often replaced by crane. HVACProjectCost publishes residential crane lifts at $800–$2,000; commercial lifts are quoted per site.
- Split systems and ductless for small offices and retail.
- Roof curbs and structural checks when a new unit is heavier or a different footprint.
- Electrical service, often three-phase, sized to the new equipment.
- Ventilation and controls required for occupied commercial space.
Like-for-like swap or redesign?
Like-for-like rooftop swap
- Same curb, similar weight and capacity
- Same fuel and electrical service
- Simplest permit path
- Crane day is the main logistics
Redesign or upsize
- New curb or adapter, possible structural check
- Electrical service changes
- More likely plan check
- Energy compliance forms for the changed system
How a commercial replacement runs
- Site survey of units, roof, curb, electrical and controls.
- Written proposal with equipment, crane and rigging, curb work, electrical, controls, permits and exclusions.
- Permits: mechanical, electrical if needed, and any street-use permit for the crane.
- Crane day: old unit out, new unit set, connections made.
- Start-up, balancing and controls, then inspection.
Permits for commercial HVAC
Commercial mechanical work goes through the same offices as residential, LADBS in the City of Los Angeles or the local city or county, but larger or changed systems are more likely to need plan check rather than an express permit. Start with the permit guide to find the right office.
What to ask a commercial contractor
- Does the license show C-20, and is the bond current? Every licensed California contractor must carry a $25,000 contractor license bond, raised from $15,000 on 1 January 2023 by SB 607.
- Is the crane, rigging and street-use permit in the price?
- Does the new unit fit the existing curb, or is an adapter or structural work needed?
- Plan check or express permit, and who prepares the energy compliance forms?
Line up bids with the quote comparison tool; most of its lines apply to commercial quotes too.
Sources
- California Code of Regulations, Title 16, § 832.20, via Cornell LII (retrieved 2026-09-29)
- CSLB, "Bond Requirements" (retrieved 2026-09-29)
- HVACProjectCost.com, Los Angeles HVAC replacement cost (retrieved 2026-09-29)
Questions
Does this site route commercial AC requests?
Not yet reliably. The form is built for homes, and no commercial partner contractor has been confirmed. You can still send a request; if nobody covers it, we email you and say so.
How much does commercial AC installation cost in Los Angeles?
None of the Los Angeles price sources this site uses publishes commercial or rooftop-unit prices, so we do not print a range. Commercial jobs are quoted after a site survey, with crane, roof and electrical work priced per building.
Can a rooftop unit be replaced like-for-like?
Often, if the new unit fits the existing curb, weighs about the same and uses the same fuel and electrical service. A different footprint, weight or capacity can bring curb adapters, structural review and plan check. Ask the contractor which case yours is.
Who prepares the energy compliance paperwork for a commercial unit?
Usually the contractor or their designer. California's energy code applies to commercial alterations too, and the permit office will ask for the compliance forms. Make preparing them a line in the quote.
Will the work disrupt my business?
Rooftop swaps by crane are often scheduled early or on closed days, and can need a street-use or lane-closure permit for the crane. Ask for the sequence, the expected downtime and who handles the street permit.
What license does a commercial HVAC contractor need?
The same CSLB C-20 classification covers warm-air heating, ventilating and air-conditioning work in commercial buildings. Check the license, bond and workers' compensation on the CSLB register.
Next step
Free quote request
Get a quote to check against these numbers
- Tell us about the job. Service, ZIP, property and timing. The form says right away if your ZIP is outside the area.
- We check the license first. Requests go only to contractors whose CSLB C-20 license we have matched on the state register. If none covers your ZIP yet, we email you and say so.
- Compare what comes back. Line the written quote up against the published ranges and the quote checklist.
No cost and no obligation. We are a publisher, not a contractor; contractors pay us for introductions. How that works.
Send a request (homes first)
Licensed Los Angeles HVAC contractors. Free, no obligation.