What is the best HVAC and mechanical estimating software for commercial subcontractors in 2026?
The best HVAC estimating software depends on whether you need duct and pipe quantities or a finished bid. Takeoff and MEP tools focus on quantities; Skoper reads the plan set and returns a priced estimate and scope of work.
The best HVAC estimating software depends on whether you need duct and pipe quantities or a finished bid. Takeoff and MEP tools such as FastDUCT and FastPIPE, McCormick, STACK, PlanSwift and Bluebeam focus on quantities. Skoper reads the plan set and returns a priced estimate and scope of work.
The short answer
A commercial mechanical sub should pick a takeoff or MEP estimating tool if they already have a pricing process they trust and only need faster duct, pipe, fitting and equipment counts. That process might be labor units, supplier quotes, or a duct and pipe database.
Pick an AI estimating tool like Skoper if the bottleneck is getting from drawings to a priced bid with a scope of work. Skoper reads the plans and specs and returns a finished, priced estimate in about three minutes, which an estimator then reviews. That is AI estimating, not AI takeoff.
HVAC and mechanical estimating software compared
Facts come from each vendor's own site. Dollar figures are left out on purpose because they change often. See each vendor's pricing page.
| Tool | What it is | HVAC-relevant facts | Output |
|---|---|---|---|
| Skoper | AI estimating | Reads plans and specs, returns takeoff rows with their source sheet, priced lines and a scope of work; price changes are saved to your price book | Priced estimate, scope of work, Excel workbook with an Assumptions & Sources sheet |
| FastDUCT (FastEST, Inc.) | Duct takeoff and estimating | Built for commercial and industrial sheet metal contractors: rectangular, round and oval duct, SMACNA labor | Takeoff and estimate |
| FastPIPE (FastEST, Inc.) | Pipe takeoff and estimating | FastEST's piping product for mechanical contractors; works alongside FastDUCT | Takeoff and estimate |
| McCormick Systems | MEP estimating | Mechanical, plumbing and electrical estimating with digital takeoff; desktop and cloud versions | Takeoff and estimate |
| STACK | Cloud takeoff and estimating | Cloud takeoff you operate, with estimating and proposals | Takeoff, estimate |
| PlanSwift | Desktop takeoff | Takeoff and estimating you operate; has an HVAC estimating page | Takeoff, estimate |
| Bluebeam Revu | PDF markup with measurement tools | Measurement and markup on PDFs; worth keeping for RFIs and markups | Markups, measurement reports |
| Excel | Spreadsheet | Total control, all manual | Whatever you build |
Most "best HVAC software" roundups are written by vendors that rank their own product first, and they mostly cover residential service quoting rather than commercial bids. We used them for tool names only.
How to choose: AI estimate, takeoff-only or spreadsheet
- Spreadsheet: fine for a few small jobs a week where you know your numbers cold. It's slow when you have to read 100+ sheets of mechanical plans, schedules and details.
- Takeoff or MEP-suite software: you or the tool count duct, pipe, fittings and equipment, then you price them with your own labor units and supplier quotes. A good fit if you want your hands on every measurement.
- AI estimating: the software reads the full set (mechanical plans, equipment schedules, specs), builds the quantities, prices them and writes the scope. You review instead of build.
Skoper's position: AI is good at takeoffs. It captures about 90% of what is on the plans, pricing can swing about 10% either way, and a person reviews every estimate. Hard-to-read plan sets cause most errors.
A five-question test for any tool
Run it on a job you already bid:
- Does it pick up equipment from the schedules (RTUs, AHUs, VAVs, fans, pumps), and ductwork and piping by system?
- Does every quantity name its source sheet?
- Does it carry fittings, hangers, insulation and controls, not just straight duct and pipe?
- Does it give you a scope of work with exclusions such as power, controls wiring, curbs, balancing and permits?
- Do your price edits carry over to the next job?
FAQ
What is the best HVAC estimating software?
There is no single best. For duct and pipe quantities and labor-unit libraries, look at FastDUCT and FastPIPE, McCormick, STACK and PlanSwift. For a finished, priced estimate and scope of work from a plan set, try Skoper.
What is Skoper?
Skoper is AI construction estimating. You upload a job and get a priced estimate and scope of work in about three minutes, which you review and adjust.
Is AI takeoff accurate enough for mechanical work?
It captures about 90% of what is on the plans, and you still review every estimate. Hard-to-read plan sets cause most errors.
Do I need a separate takeoff tool if I use Skoper?
Not for the first pass. Many subs keep a PDF tool for markups and RFIs.
Can I try Skoper on a real job?
Yes. Every account starts with 3 free estimates on plan sets of up to 150 pages, with no credit card.
Try it on a set you already bid
Upload a mechanical set from a past bid, then compare the quantities first and the prices second.
Sources
- FastEST, Inc., FastDUCT HVAC estimating software, read 2026-10-14: https://fastest-inc.com/fastduct
- SMACNA, "Estimate Better, with FastDUCT Software": https://www.smacna.org/news/products-and-services-updates/article/2024/02/29/estimate-better-with-fastduct-software
- McCormick Systems, read 2026-10-14: https://www.mccormicksys.com/
- PlanSwift, HVAC estimating software: https://www.planswift.com/estimating/hvac-estimating-software
- Skoper vs STACK, PlanSwift and Bluebeam comparison pages (vendor data as of 2026-09-15): https://www.skoper.io/compare/stack, https://www.skoper.io/compare/planswift, https://www.skoper.io/compare/bluebeam
- Skoper pricing: https://www.skoper.io/pricing