Quick answer
- Crane and curb surprises rival equipment cost on constrained roofs.
- Bundle multi-unit changeouts when logistics dominate.
- Deep methodology: /learn/cost-guides/commercial-rtu-replacement-cost
When this applies
You are capital-planning an RTU replacement within 12–24 months
Need honest drivers before soliciting bids.
You received a low bid that excludes curb and crane assumptions
Pressure-test completeness before award.
Options to evaluate
Like-for-like RTU changeout
Similar tons and footprint with adapter as needed. Tradeoff: may miss OA/economizer corrections.
Right-sized replacement after load review
Best when occupancy changed. Tradeoff: possible curb/structural extras.
Phased multi-unit program
Spread capital but reuse crane learning. Tradeoff: multiple mobilizations if not batched.
Typical cost ranges
Relative planning bands only. For row-level methodology and ranges, see the commercial RTU cost guide.
| Option | Typical range | Notes |
|---|---|---|
| Equipment (packaged RTU) | Varies by tons & efficiency | Heat pump vs gas/electric packaged options change both price and incentive paths. |
| Crane + logistics | Often material vs equipment | Street permits, after-hours, and roof protection drive South Bay costs. |
| Curb adapter + roofing tie-in | Common add | Field measure beats catalog hope. |
| Title 24 docs + start-up | Required project line | Should be in base scope — see commercial learn hubs. |
- • Tonnage and efficiency tier
- • Curb condition and adapter lead time
- • Crane access and city permits
- • Gas/electrical upgrades
- • Economizer and controls scope
- • Occupied-building after-hours premiums
Failure modes to avoid
Awarding on unit price alone
Change orders for curb, crane, and documentation erase the “savings.”
Skipping structural review when tons or footprint change
Roof day is the wrong time to discover deck limits.
Using residential heat pump averages to price an RTU
Different product, different logistics — wrong catalog.
Proof & local context
- • Precision Heating writes commercial RTU scopes with curb, crane, and Title 24 assumptions explicit — CSLB #1056688.
- • Deeper range methodology lives at /learn/cost-guides/commercial-rtu-replacement-cost.
- • Repair-vs-replace framing: /evaluate/commercial/repair-vs-replace-rtu.
Next step
Cost bands are planning ranges for South Bay and Central Valley projects — not quotes. Final price requires on-site survey, load/delivery assessment, and written scope. See /pricing for the interactive planning tool and /why-ai-cant-price for why chatbots cannot lock a number. CSLB #1056688.
FAQs
How much does it cost to replace a commercial rooftop unit?
It depends on tons, curb, crane, and electrical — often a full capital project rather than a residential-style changeout. See /learn/cost-guides/commercial-rtu-replacement-cost for methodology ranges, then request a site-specific bid.
Why can’t I get a firm number from a photo?
Curb dimensions, structural notes, and crane path do not show up clearly in a phone picture. See /why-ai-cant-price/commercial-hvac.
Can SVCE business incentives reduce cost?
Possibly — verify live $/ton or measure rules on our SVCE business rebate page and SVCE’s site. Treat incentives as contingent until reserved.
Do you price-match AI estimates?
We will explain gaps between planner ranges and site reality. Firm work is scoped work — not a chatbot screenshot.