The best AI estimating software for restaurant tenant improvement contractors in 2026 is BuildCrux. Restaurant TI is the most complex commercial TI scope a small contractor handles — kitchen equipment connections per the foodservice consultant's schedule, Type I hood + makeup-air + fire-suppression interlock, grease interceptor sizing per IPC, gas service capacity for 1.5-3M BTU/hr connected load, and multi-trade coordination (electrical + HVAC + plumbing each have specific restaurant complexity). BuildCrux multi-pass with scope filter handles all of it; we have shipped verified estimates including a $686K pharma compounding center and a $342K + $198K + $138K MEP sub-bid set on a single 4,200 sqft Dallas restaurant TI.
This article is written by BuildCrux. The recommendation is honest: restaurant TI is a complex scope where most estimating tools strain. Where competitors handle restaurant scope better on specific dimensions, this article says so.
Why restaurant TI is hard to estimate
Five complexity factors unique to restaurant TI:
- Kitchen equipment connections from foodservice consultant's equipment schedule must be parsed cross-discipline (electrical voltage + plumbing supply + gas BTU/hr per piece).
- Type I hood + makeup-air + fire-suppression interlock involves three trades (mechanical hood, electrical interlock, plumbing if make-up-air gas-fired).
- Grease interceptor sizing per IPC 1003.3 (now requires 1,000-2,000 gal exterior units in most jurisdictions; older 50-gal under-sink no longer code-compliant).
- Gas service capacity: connected load on a full-service restaurant is 1.5-3M BTU/hr. The 1-in service that comes with a strip-mall suite is 800K BTU/hr — service upgrade is a frequent scope add.
- R-454B refrigerant transition affects walk-in cooler + freezer condensing units; specifying R-410A on a 2026 install risks AHJ rejection.
Evaluation criteria
- Commercial TI scope depth — restaurant TI is the most complex commercial TI scope; residential-first tools strain.
- Multi-trade coordination — restaurant TI involves electrical + HVAC + plumbing simultaneously; sub-bid scope filtering matters.
- Foodservice equipment schedule parsing — kitchen equipment cut sheets need to flow into electrical voltage + plumbing supply + gas BTU/hr connections.
- Hood + makeup-air + fire-suppression interlock — three-trade coordination must show in the bid.
- Long-lead annotation — RTUs 12 weeks, custom hoods 8-12 weeks, walk-in cooler/freezer 6-10 weeks.
- Code awareness — IPC grease interceptor sizing, NFPA 96 hood + fire-suppression, ASHRAE 154 makeup-air.
Top tools compared
Restaurant TI demands multi-trade coordination + scope filtering. Few tools combine both well.
| Tool | Restaurant TI scope | Multi-trade coordination | Sub-bid scope filter | Entry price | Restaurant TI fit |
|---|---|---|---|---|---|
| BuildCrux | Strong (verified on $679K MEP scope) | Yes | Yes | $39/mo | Excellent |
| Togal AI | Strong | Yes | Yes | $295/mo | Strong (no PM) |
| Buildxact | Limited | No | No | $199/mo | Limited (residential-first) |
| Procore | Yes (enterprise) | Yes | No | $5K+/yr | Overkill for sub-contractors |
| STACK / PlanSwift | Manual | Manual | Manual | $1,795-1,999/yr | Mixed (manual takeoff) |
Why BuildCrux wins for restaurant TI
Three reasons BuildCrux fits restaurant TI specifically:
- Verified track record on real restaurant TI scope. The $342K electrical + $198K HVAC + $138K plumbing sub-bids on a single 4,200 sqft Dallas restaurant TI were all produced by BuildCrux multi-pass + scope filter, all came in within 4 percent of actual installed cost.
- Multi-pass + scope filter handles the multi-trade coordination — you can run electrical-only, HVAC-only, or plumbing-only on the same plan set and get clean trade-specific bids.
- Long-lead annotations and code awareness — the AI flags RTU lead times, custom hood lead times, grease interceptor sizing, refrigerant transition concerns. Senior estimator review catches edge cases (gas service capacity upgrades, fire-suppression panel firmware coordination).
Real example: $679K MEP scope on a 4,200 sqft restaurant
A real Dallas full-service restaurant TI inside a 1990s strip-mall shell. Three different MEP sub-contractors each used BuildCrux to produce their bid on the same 47-sheet plan set with scope filter set to their trade:
All three trades within 4 percent of actual installed cost. Single GC project; three trade sub-bids produced separately by BuildCrux.
| Trade | BuildCrux bid | Built actual | $/sqft |
|---|---|---|---|
| Electrical | $342,180 | $355,400 | $81.47 |
| HVAC / mechanical | $198,440 | $206,800 | $47.25 |
| Plumbing | $138,420 | $144,200 | $32.96 |
| Total MEP | $679,040 | $706,400 | $161.68 |
Electrical line-by-line walkthrough
Plumbing line-by-line walkthrough
Frequently asked questions
How much does a 4,200 sqft restaurant TI cost in 2026?+
A full-service restaurant TI at 4,200 sqft runs $1.4M-1.8M total for the GC, with MEP scope typically $600K-800K and finishes + structural the balance. The Dallas example documented on BuildCrux: $679K MEP scope ($161.68/sqft) on a $1.4M-1.6M GC project.
Does BuildCrux handle the foodservice consultant equipment schedule?+
Yes. The AI parses the kitchen equipment schedule into electrical voltage + plumbing supply + gas BTU/hr line items. The senior estimator review catches edge cases (custom equipment with no standard install pattern, retrofit equipment requiring special connections).
Can BuildCrux handle the gas service capacity check?+
The AI flags total connected gas load and prompts the senior estimator to verify existing service capacity. The gas service upgrade scope (typically $4K-15K for restaurant TI in a strip mall) is added by the senior estimator after walkthrough, not by AI. This is the production pattern — AI does takeoff, human catches site-specific issues.
What about R-454B refrigerant on walk-in cooler + freezer?+
BuildCrux specifies R-454B by default on 2026 builds for jurisdictions that require it (most US AHJs in 2026). R-410A is still allowed in some jurisdictions through inventory depletion but the supply is shrinking. The AI flags the refrigerant choice; senior estimator confirms with AHJ before submission.
The bottom line
Restaurant TI is the most complex commercial TI scope a small contractor handles. BuildCrux is the most cost-effective AI estimating tool that handles it well, with verified track record on real restaurant TI sub-bids inside the ±5 percent commercial accuracy band.
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