AI Estimating for HVAC Contractors

RTUs, AHUs, ductwork, VAV boxes, refrigerant lines, controls. BidEngine's HVAC engine reads the mechanical schedule and ductwork plans, then prices the equipment, sheet metal, and start-up package together.

5 MIN
Per Bid
MERV-13
Filter Aware
98%
Tonnage Accuracy
24/7
Available

Built for Division 23 HVAC

The quantities your estimator looks for first — counted, sized, and priced from the plan set.

# RTUs & AHUs

Rooftop unit and air handler count by tonnage, gas/electric, MERV rating.

LF Sheet Metal Duct

Supply, return, and outside-air duct by gauge and size.

# VAV / FPB Boxes

VAV count by size, with reheat coils where applicable.

Refrigerant Lineset

VRF/split-system lineset footage by tonnage.

# Diffusers & Grilles

Supply diffusers, return grilles, transfer grilles by type.

Controls & BAS

BACnet thermostats, sensors, and BMS integration scope.

What the Bid Looks Like

A realistic line-item snapshot of a Division 23 package generated by BidEngine. Real units, real rates, ready to send.

Professional Bid Proposal
Sample — Division 23 HVAC Package
Generated 4:32 · Vendor pricing verified
Div
Description
Qty
Rate
Extended
23
10-Ton RTU Gas/ElectricTrane YHC120, MERV-13, economizer
8 EA
$13,500
$108,000
23
VAV Box w/ ReheatTitus DESV w/ hot water reheat coil
24 EA
$1,750
$42,000
23
Sheet Metal SupplyGalv 24ga - 18ga, hung & sealed
3,400 LF
$22
$74,800
23
Linear DiffusersTitus ML-39, 4-ft sections
62 EA
$380
$23,560
23
BAS Controls PackageBACnet, JCI Metasys, point list per spec
1 LS
$28,400
$28,400
Grand Total
$276,760

The Bid Mistakes BidEngine Doesn’t Make

HVAC bids get won when you size the equipment right and lose when the sheet metal goes long. BidEngine reads the mechanical equipment schedule for tonnage and CFM, takes off the duct sizes from the plan with the actual run lengths, and reconciles the diffuser count against the layout so you don't show up to install with 12 fewer diffusers than the field needs.

Every CSI Division. One Platform.

If you self-perform multiple trades, every division below uses the same upload, the same dashboard, and the same proposal format.

Bid Your Next HVAC Package in Minutes

Upload your plan set. BidEngine writes the bid. Send it to the GC the same day.

Book a Free Demo