Nationwide coverage
Client feedback
Reviews from contractors and subcontractors who send us their bid estimates, takeoffs, and shop drawings.
Review summary: Bart needed shop drawings on a tight schedule. The team discussed the project the same day, delivered drawings within a week, and completed minor revisions the following day. He praised their understanding of the scope, quick responses and progress updates.
Bart, BTW Enterprises, INC.
Read reviewReview summary: Ludin appreciated the professional team, their patience and guidance, and recommended BidAccurate for takeoff and shop drawing projects.
Ludin Pierre
Read reviewRead the original reviews on Trustpilot.
View all reviews
Air-side HVAC takeoffs
Our HVAC estimating services cover the air side of Division 23: the duct, the boxes, the equipment on the roof, and the labor to hang and set it all. We work for HVAC and sheet metal contractors, mechanical subs, GCs, and suppliers bidding across the US.
We read the mechanical plans alongside the equipment and air device schedules, controls diagrams, details, specs, and addenda. The architectural ceilings and electrical sheets come in where they matter. Controls, test and balance, and insulation are often subcontracted, so we ask before we carry them.
We build the scope from the mechanical plans, schedules, controls information, specs, addenda, and bid form you send. A sheet metal shop wants duct by the pound; a GC wants a system total. Tell us which and we'll set the units to match.
Duct is taken off by system, shape, size, and pressure class. Rectangular duct can be reported by weight for the fab shop or by surface area for pricing.
Device counts come off the RCPs and mechanical plans, then get checked against the air device schedule by tag and neck size.
Every unit is tracked by its schedule tag. That way you can see what the vendor quote covers and what it leaves out, such as curbs or startup.
On air-side work, the piping is mostly refrigerant and condensate. Where hydronic coils are in your scope, we measure the branch piping to them.
Setting a rooftop unit by crane and hanging duct from a lift don't cost the same. Rigging and access get their own lines.
Sheet metal shops and installers count duct differently. We ask which one you want before we start.
Send the mechanical plans, schedules, specs, addenda, and any equipment quotes. We'll review the set and confirm the takeoff scope before we start measuring.
Request Your HVAC Takeoff
If a VAV box is on the schedule but not on the plan, or the other way around, we flag it.
We measure the duct and count the devices. Your estimator gets to spend the week on equipment quotes and the bid itself.
Equipment lists by tag and air device lists by type let each vendor quote the same scope.
Dampers, curbs, flex connections, condensate drains, and test and balance are on our checklist for every HVAC job.
Supply, return, and exhaust each get a color on the PDF plans. A quantity traces straight back to its run.
Send equipment quotes, sheet metal pricing per pound, labor units, and cost codes, and we'll build the estimate on them.
HVAC bids go sideways over gaps in an equipment quote, duct priced at the wrong pressure class, or nobody owning the controls. We sort those out on paper first.
Diffuser layouts are checked against the architectural ceilings. Equipment is checked against the electrical sheets for power and disconnects.
Supply, return, exhaust, and outside air can each have a tab, as can floors, zones, or phases.
You see the sheet metal basis, duct types, fittings, and labor units we used, plus our access and rigging assumptions.
Drawing references, exclusions, allowances, and the vendor quotes we carried are all listed.
Organized by your cost codes, equipment tags, or the layout your fab shop already uses.
When a revised set comes out, we compare it to the last one and update the duct, devices, and equipment that changed.
From the first read of your mechanical set to a package your estimator can check line by line.
Mechanical plans, equipment and air device schedules, controls sequences, specs, addenda, the bid form, and the bid date. Architectural RCPs and electrical sheets help too.
Who owns controls, test and balance, insulation, and any central plant piping? We answer that before measuring anything.
Duct is measured by system and size. Equipment, air devices, dampers, and fittings are counted, and then supports, insulation, and labor activities are added.
For a priced estimate, we apply vendor quotes, material prices, labor units or crew assumptions, lifts and rigging, and approved indirects.
The takeoff goes back against the schedules, details, specs, and addenda. Anything that doesn't line up is logged.
An Excel or PDF estimate, material and labor summaries, scope notes, and color-coded mechanical plans.
Tell us if you want quantities only, fabrication and install labor, vendor quotes carried in, or a full HVAC estimate.
Start Your HVAC Estimate
HVAC estimate deliverables
Send the equipment list out for quotes, hand the duct takeoff to your fab shop, or load quantities into your estimating system. This is an estimate, not a design. It doesn't replace HVAC engineering, load calculations, equipment selection, or permit documents.
Duct by system and size, with equipment, air devices, dampers, fittings, insulation, and supports counted.
Fabrication and field labor, equipment, vendor quotes, rigging, and balancing, priced on the basis you confirmed.
Mechanical plans with duct runs, terminals, and equipment colored by system and the scope lines drawn in.
What's in, what's out, alternates, allowances, and the coordination items still open with other trades.
Add a quantities-only takeoff, a full project estimate, or BIM coordination to your HVAC work.
Need only the duct and device counts? We'll send HVAC quantities with marked plans for your shop or your own pricing.
Put the HVAC number inside a full project estimate alongside the other trades and your markup.
For modeled jobs, we coordinate duct and equipment with structure and the other MEP trades and pull quantities from the model.
Partner with experienced construction professionals to deliver your project on time along with in budget.
