An AI, SMACNA-Aware Ensign Software Alternative for HVAC Takeoff
Ensign is a long-established UK ductwork estimating system — on-screen takeoff built around the British DW144 and DW154 standards, paired with a full material-and-labour costing suite, and sold through a booked demo rather than public pricing. For UK sheet metal contractors it is a deep, specialist tool, and this is a fair comparison, not a takedown.
DuctIQ is built for a different market and a different method: North American HVAC contractors working to SMACNA, who want AI to find and measure the ductwork rather than tracing every run on screen. Below is where the two genuinely differ — region and standard, AI auto-detection versus on-screen takeoff, and self-serve versus demo-led — so you can tell quickly which one fits your shop.
Start your free takeoffSee pricing
No credit card — your first takeoff is free. Want proof first? Download a real sample takeoff — no signup.
The core difference: AI auto-detection vs on-screen takeoff
Ensign's takeoff is on-screen and estimator-driven: you work across the PDF and capture the spiral, rectangular duct, fittings, dampers, and grilles yourself, quickly, with the software pricing as you go. It is fast in skilled hands, but the measuring is still your hands on the drawing.
DuctIQ inverts that. The AI reads the mechanical PDF and auto-detects the ductwork — supply, return, and exhaust measured at the drawing's scale, fittings counted, equipment pulled from the schedules — then hands you a line-by-line takeoff to review rather than trace. Your time moves from capturing every run to checking the ones the system flags. Both end at priced quantities; the difference is who does the measuring.
SMACNA vs DW144/DW154 — same trade, different rulebook
This is the single biggest "which fits you" factor, and it is about geography. Ensign is built around DW144 and DW154 — the British/BESA ductwork specifications — which is exactly what a UK contractor needs and exactly what a North American one does not bid to. DuctIQ is built around SMACNA: when a drawing does not call out a gauge, it falls back to the SMACNA minimum for the size and labels it as such.
So the honest split is by market. If your deliverables must speak DW144/DW154, Ensign's UK specialisation is the right home. If you bid to SMACNA in the US or Canada, a tool built around that standard saves you translating a UK rulebook onto your job.
When Ensign makes sense
Ensign makes sense if you are a UK ductwork contractor who needs DW144/DW154 throughout and wants a mature, single-vendor estimating-and-costing suite. Decades of refinement sit behind its material, shop-manufacturing, and site-installation cost models, and it produces tender summaries and schedules of rates in one place. If your bottleneck is full estimating and costing — not just the measuring — and you work to British standards, that depth and breadth are real and hard to match.
If estimator-driven on-screen takeoff suits how your team already works, and a booked demo with a specialist UK vendor is what you want, Ensign is a legitimate, well-proven choice — and we would rather you pick the tool that fits your market than switch for switching's sake.
When DuctIQ makes sense
DuctIQ makes sense when you bid HVAC ductwork to SMACNA in North America and want the takeoff itself automated, not just sped up. It reads the mechanical PDF, finds and measures the duct, and returns a reviewable line-item takeoff organised the way a North American estimator bids — without tracing every run by hand or booking a demo to see it.
- You work to SMACNA in the US or Canada, not DW144/DW154.
- You want AI to auto-detect and measure the duct, not capture every run on screen yourself.
- You want every quantity as a reviewable line item, with low-confidence runs flagged and traceable to the source sheet.
- You price in Excel and want clean Excel/CSV export, applying your own labour and material rates in your own workbook.
- You want transparent, public pricing and a free first takeoff — no sales call to see the tool or the price.
How to compare them on your own work
Speed and standards are the headline, but a few axes decide the fit. Here is where DuctIQ lands on each — run the same drawing through both and keep whichever wins for your market.
| What to compare | Why it matters | DuctIQ |
|---|---|---|
| Ductwork standard | You must bid to the rulebook your market uses | SMACNA-aware, with the minimum gauge labelled when a drawing is silent |
| Who measures | Manual capture is skilled but still hands-on | AI auto-detects and measures; you review flagged lines, not every run |
| Region fit | Standards, terminology, and schedules differ by country | Built for US & Canadian HVAC mechanical work |
| Buying | A demo gate slows evaluation | Transparent public pricing; download a sample and run a free first takeoff |
| Export | You price in your own workbook | Structured Excel/CSV, no re-keying and no proprietary lock-in |
A fair, criteria-level comparison. Ensign is a deep UK estimating-and-costing suite; the contrast is market (SMACNA vs DW144/DW154) and method (AI auto-detection vs on-screen takeoff).
Takeoff focus, your own pricing
One honest distinction: Ensign bundles a full costing and estimating suite, with built-in labour and material models, around its takeoff. DuctIQ is narrower by design — it concentrates on producing a fast, accurate, reviewable, SMACNA-aware takeoff and exporting it cleanly, then leaves the pricing in the Excel workbook you already trust. If you want one system to both measure and cost to UK standards, that is Ensign's territory; if you want the measuring automated and your pricing kept in your own sheet, that is DuctIQ.
Download a sample takeoff (Excel)How DuctIQ measures ductwork
Try DuctIQ before you commit
You should not need a sales call to judge a takeoff tool. Download a real DuctIQ sample output with no account, then run a free first takeoff on one of your own SMACNA drawings and review the result before choosing a plan. Pricing is public, so you can see the cost the same day you see the output.
Download sample (CSV)See DuctIQ pricing
Run your first takeoff free
Upload a mechanical PDF and get a reviewable ductwork, fittings, and equipment takeoff you can export to Excel. No credit card to try your first drawing.
Start your free takeoff Download a sample takeoff See pricingNew to AI takeoff and want a hand? Send us your first drawing and we'll help you review the output, or book a 1:1 walkthrough.
Related HVAC takeoff guides
Frequently asked questions
Is DuctIQ a UK alternative to Ensign?
Not directly — DuctIQ is built for North American HVAC, working to SMACNA, while Ensign is UK-focused around DW144 and DW154. If you bid to SMACNA in the US or Canada, DuctIQ fits; if your deliverables must be DW144/DW154, Ensign's UK specialisation is the better match. The honest split is by market.
Does DuctIQ trace the takeoff on screen like Ensign, or do it automatically?
DuctIQ auto-detects and measures the ductwork for you — it reads the PDF, traces the runs at scale, counts fittings, and pulls equipment from the schedules — then gives you line items to review. You verify flagged quantities rather than capturing every run on screen yourself.
Does DuctIQ support DW144 or DW154?
No. DuctIQ applies SMACNA (North American) gauge standards, falling back to the SMACNA minimum for a size and labelling it as such when a drawing is silent. It is not a DW144/DW154 tool, so it suits SMACNA markets rather than UK ones.
Does DuctIQ include full cost estimating like Ensign?
DuctIQ focuses on producing a reviewable, fabrication-aware takeoff and exporting it cleanly to Excel/CSV, where you apply your own labour and material rates. Ensign bundles a broader built-in costing suite; DuctIQ deliberately keeps pricing in the workbook you already use.
Can I see DuctIQ's pricing without booking a demo?
Yes. DuctIQ's pricing is public, and you can download a real sample takeoff and run a free first takeoff with no sales call — so you can evaluate the output and the price the same day.