Introduction
Plumbing estimating is the work of turning a set of plumbing drawings into a priced bid. On a commercial job that means counting every fixture, floor drain, cleanout and valve on the floor plans, then measuring each domestic water, sanitary, vent and storm run by size and material from the plans and riser diagrams. Every run brings fittings, hangers and joints with it, so a length of 4 inch no-hub cast iron carries its couplings, its supports and its installation hours into the number. The estimator prices that material against current supplier quotes and applies a labor unit to every item before the bid summary comes together.
At most plumbing contractors, this is still done by hand. An estimator highlights fixtures on a PDF, traces each run with a measuring tool, types the quantities into a spreadsheet or an estimating database, and then reconciles the fixture count against the fixture schedule, because the plans and the schedule rarely agree on the first pass. On hotel and multifamily work the same bathroom group repeats hundreds of times, so one miscounted group multiplies through the entire bid.
That pace no longer holds. There are fewer estimators each year, the bid list keeps growing, and plumbing packages on hospitals, labs, data centers and multifamily towers keep adding sheets.
The ten plumbing estimating software tools below are compared on how each one gets from the drawings to a priced bid: what it counts for you, where the estimator still clicks by hand, which labor units it carries, and how the final number gets checked before it goes out.
What Plumbing Estimating Software Does And What To Look For
Plumbing estimating software takes the quantities from a takeoff and turns them into a bid, doing the job a plumbing cost estimator once did with a spreadsheet. It holds a material database priced to your supply houses, a labor unit for each item by size and material, and the crew rates, markups, overhead and tax that roll everything into a bid summary. Some products measure and price in one file, while others only price what the estimator types in. Plumbing estimation software that does both removes the retyping step, which is where a fitting count most often goes wrong. If you only need quantities, our list of the best plumbing takeoff software covers that side.
Inside most of these tools the work is still manual, and fewer people are left to do it. The Bureau of Labor Statistics (BLS) counts about 221,400 cost estimators in the US, projects a 4% decline by 2034, and expects roughly three in four estimator seats to need refilling over the decade, according to The Shortage of Estimators report. A plumbing estimator already carrying a full bid list can't keep tracing every run by hand with fewer colleagues beside them. The Takeoff AI also suits plumbing and mechanical contractors expanding into data center work, a shift covered in The Data Center Boom Has A Problem.
When you compare commercial plumbing estimating software, check four things:
- The material database should update from your own supply houses, because copper and cast iron prices move between the day you bid and the day you buy.
- Labor units should come from MCAA (Mechanical Contractors Association of America) or PHCC (Plumbing-Heating-Cooling Contractors Association) tables or from your own job history, with factors for working height, congestion and occupied buildings.
- Saved assemblies should let you take off a typical restroom core or hotel bathroom group once and apply it to every repeat unit.
- Every quantity should trace back to the sheet it came from, so a second estimator can check the bid without redoing the takeoff.
AI plumbing estimating software changes the first and slowest step. It counts the fixtures and measures the pipe runs from the drawings itself, prices them into a priced bill of materials (BOM), and marks every number on the drawing so the estimator checks the work before the bid goes out.
10 Best Plumbing Estimating Software In 2026
1. The Takeoff AI
The Takeoff AI is the best plumbing estimating software in 2026. It estimates from your plumbing floor plans, riser diagrams, isometrics and P&IDs (piping and instrumentation diagrams), counts every fixture, drain, cleanout, valve, fitting, hanger and joint, and measures each domestic water, sanitary, vent and storm run by size and material. It is built on AI models trained on more than 1 million plumbing and piping drawing sets and delivers 95% accuracy. Every number is marked and highlighted on the drawing it came from, so someone on your team can check it before the bid goes out.
The outputs are the material takeoff (MTO), the labor takeoff and a priced bill of materials (BOM), with weld counts by diameter inch on welded steel and process piping. The Takeoff AI does the pricing as well, applying material costs and MCAA-based labor units adjusted to your crews, and it turns industrial drawings into a priced bid in under 4 hours. Today 113 estimators say The Takeoff AI is the best plumbing estimating software they have used, and it helps them estimate projects in 3 to 4 hours that once took 40 to 50 hours, which gives back 90 to 95% of their estimating time.
It covers piping, P&ID, isometrics, mechanical, electrical and instrumentation (E&I), plumbing, HVAC including ductwork, structural steel and misc iron, so the plumbing, process piping and mechanical scope on one job run through the same tool. It also nests pipe cuts onto stock lengths, which reduces offcut waste on copper and steel pipe.
2. FastPIPE
FastPIPE, from FastEST, is mechanical and plumbing estimating software built around on-screen takeoff of pipe, fittings, valves and assemblies. Its catalog runs past 150,000 items, each carrying MCAA and PHCC labor units. The estimator still traces every run on screen. Reviewers most often mention the learning curve that comes with its depth.
3. QuoteSoft Pipe
QuoteSoft has sold estimating software since 1986 and is now owned by ConstructConnect. QuoteSoft Pipe covers plumbing, mechanical piping, refrigeration and process piping, generating pipe and fittings as the estimator traces a run on a PDF or paper print. Ductwork needs a separate QuoteSoft Duct license. Users say initial setup takes a while and usually needs an experienced person to configure it.
4. Trimble AutoBid Mechanical
AutoBid Mechanical is spec-driven. The estimator traces a route, and rule sets generate fittings to match the connection type and pressure class, which suits large commercial mechanical and plumbing bids with strict specifications. The database holds more than 100,000 materials. Tracing stays manual, and reviewers point to a steep learning curve and an item library that needs regular upkeep.
5. McCormick Estimating
McCormick builds software only for plumbing and mechanical contractors, with more than 40,000 items and 20,000 pre-built assemblies covering ProPress, Uponor, CPVC and fixture groups. Pricing updates from supply houses, and labor units switch between a national average, MCAA and PHCC. The takeoff is on screen and clicked by the estimator. Smaller shops find it complex, and some users report occasional crashes.
6. WenPipe
WenPipe from Wendes handles specification-heavy plumbing such as high purity piping in cleanrooms and chemical process piping, with a catalog past 200,000 items and labor set to a national average, MCAA, PHCC or your own database. It runs on premises, and every run is digitized by hand. Some users report freezing and trouble switching pipe sizes partway through a takeoff.
7. Procore Estimating
Procore Estimating, formerly Esticom, is cloud takeoff and estimating for electrical, mechanical, plumbing and low voltage contractors. The estimate builds as the estimator takes off, and a won bid moves into Procore's project management platform without re-entry. It has an auto takeoff feature for counts, but reviewers describe it as unreliable, so most of the takeoff still runs through manual clicks.
8. Plumbing Bid Manager
Plumbing Bid Manager from Vision InfoSoft is on-premise plumbing estimating with on-screen takeoff, automatic pricing updates, bid analysis and proposal output. Measuring is manual. It has few public reviews, and the complaint that comes up is limited integration with accounting and other business tools.
9. PataBid Quantify
PataBid Quantify is cloud estimating for mechanical and plumbing contractors with Rapid Count AI. The estimator takes off one typical unit, and the AI counts every identical unit across an apartment block or hotel, feeding a database of more than 60,000 items. The typical unit itself and any unique areas are still taken off by hand. Reviewers flag inconsistent material naming in the output, and there is no desktop version.
10. TurboBid
TurboBid is built for small plumbing and electrical contractors who bid new construction and service work from the same desk, with vendor pricing updates and room-by-room proposals. On-screen measuring comes through a third-party takeoff integration, or the estimator reads quantities off a PDF and types them in. Users mention limited room to customize quantities.
How The Takeoff AI Is Different
The Takeoff AI is the best plumbing estimating software for contractors who need the takeoff done and priced in hours. It counts the fixtures and measures every pipe run from the drawings, where the other tools leave the tracing to the estimator or count only repeated units. It then prices the takeoff into a priced bill of materials (BOM) with the labor takeoff alongside it, and every number is highlighted on the drawing it came from, so the estimator checks the work before bidding.
Plumbing Bid Software Vs Plumbing Contractor Software
Plumbing bid software prices new construction from drawings, and plumbing contractor software runs a service business. Bid software needs labor units by pipe size and material, supplier pricing and a takeoff, because the job is defined by the plans. Contractor software, often called field service software, handles dispatch, scheduling, invoicing and customer records, and it quotes from a flat-rate pricebook with one price per task, such as a water heater replacement or a drain clearing.
A contractor whose revenue comes mostly from repair and maintenance needs the pricebook. One that bids commercial and industrial work from plans needs the bid software, and firms that do both usually run one of each.
FAQs
What Is The Best Plumbing Estimating Software In 2026?
The Takeoff AI is the best plumbing estimating software in 2026 for commercial and industrial plumbing contractors. It counts fixtures and measures pipe runs from the drawings, prices them into a priced bill of materials (BOM), and highlights every number on the sheet it came from.
How Much Time Does AI Plumbing Estimating Software Save?
Estimators using The Takeoff AI estimate projects in 3 to 4 hours that once took 40 to 50 hours, which saves 90 to 95% of their estimating time. The hours come back on counting fixtures, tracing runs, checking the fixture schedule and pricing each line.
How Do I Check An AI Plumbing Estimate Before I Bid?
In The Takeoff AI, every quantity is highlighted on the drawing it came from, so you can see exactly which fixture or pipe run it counted. Most estimators check the high-dollar lines first, such as large-diameter cast iron, water heaters and specialty fixtures, then confirm the fixture totals against the fixture schedule.
Does Plumbing Estimating Software Include Labor Units?
Most dedicated plumbing estimating software ships with labor units from MCAA or PHCC tables, or a national average, and lets you adjust them to your crews. The Takeoff AI produces a labor takeoff with every priced bid, using MCAA-based units adjusted to your own productivity.
Conclusion
Plumbing estimating is still counted and priced by hand at most contractors, and the BLS projects 4% fewer cost estimators by 2034 to carry a bid list that keeps growing. The Takeoff AI is the best plumbing estimating software for contractors who need the takeoff done and priced in hours.
