Accounting and Procurement Software for Plumbers: Everything You Need to Know (2026)

Almost every guide to plumbing software is really a guide to residential service software. It lists ServiceTitan, Housecall Pro, and Jobber, mentions QuickBooks, and stops.

That is a genuinely useful list for a drain-cleaning and water-heater shop. It is close to worthless for a commercial plumbing subcontractor running $18M of new construction with Ferguson accounts, AIA progress billing, submittal logs, and a prefab spooling operation — a business that frequently runs no field service software at all.

Plumbing is two software markets. They overlap less than you would expect, and the single most common expensive mistake is buying from the wrong one because the search results did not distinguish between them.

This guide covers both stacks layer by layer: accounting and ERP, AP automation, procurement, estimating, the pricing-data layer, and payroll.

Two disclosures. We build CostCrunch, which audits material invoices, so weigh the section on invoice auditing accordingly. And on pricing: where a vendor publishes prices, they are below with the caveat that they were current at our last check. Where a vendor does not publish, this guide says so instead of guessing. That matters more than it sounds — the software-pricing SERP is full of confident figures that trace to nothing and contradict each other from page to page.

The split that determines everything

If you do both — a service division alongside a construction division — you will end up with two stacks and a reconciliation problem at the accounting layer. That is normal, not a failure of consolidation, and trying to force one system across both is how firms end up with software nobody uses.

Layer 1: accounting and ERP

This is the decision that constrains every other one, because integration availability is determined by what your accounting system is.

QuickBooks Online — the default, and it just got more expensive

QuickBooks Online publishes its pricing, and it went up on August 1, 2026: Simple Start $38, Essentials $85, Plus $140, and Advanced $340 per month. Plus moved from $115 to $140, and Advanced from $275 to $340 — increases in the 24% range, and larger than that against the price some customers were on a year ago.

Where it's strong. Every bookkeeper knows it, every tool integrates with it, and for a service plumbing business with straightforward job costing it is genuinely sufficient. The ecosystem advantage is real: if you are on QuickBooks, essentially nothing in this guide is closed to you.

Where it falls down. It is not construction accounting. No committed costs, no percentage-of-completion revenue recognition, no cost-to-complete reporting, no AIA billing, no certified payroll. For a commercial sub these are not nice-to-haves — they are how the business is measured and how it gets paid. Firms frequently patch the gaps with spreadsheets long past the point where the spreadsheets are load-bearing.

Best for: service and residential plumbing at any size, and commercial subs under roughly $5M without prevailing-wage work.

Skip it if: you need AIA progress billing or certified payroll. You will build both in Excel and regret it.

QuickBooks Enterprise Contractor Edition

Intuit no longer publishes flat annual pricing for Enterprise, so treat any figure you find as an estimate. It adds job costing depth, change order tracking, and better inventory than QuickBooks Online, and it remains a desktop product with the operational consequences that implies.

Where it falls down. It is still QuickBooks underneath — the construction features are additions rather than a construction-native core — and desktop deployment means the remote-access questions you thought you had left behind. Pricing is not published.

Best for: growing commercial subs who want more capability without leaving the Intuit ecosystem.

Knowify — the closest thing to a plumbing-native SMB option

Knowify is built for small-to-mid commercial specialty contractors, and its user base skews explicitly toward plumbing, electrical, and mechanical. It handles proposals, change orders, RFIs, submittals, AIA billing, and job costing, and syncs to QuickBooks rather than replacing it.

Where it's strong. It fills exactly the gap QuickBooks Online leaves for a commercial sub without demanding a full ERP implementation. Submittals and RFIs in the same system as job costing is unusual at this price point, and the QuickBooks sync means your bookkeeper does not have to relearn anything.

Where it falls down. It is not a full ERP: at real scale you will outgrow it on multi-entity accounting, equipment costing, and inventory. It also assumes you are the subcontractor rather than managing subs yourself. Pricing is not published on the vendor site, so get a written quote.

Best for: commercial plumbing subs roughly $2M-$20M who need construction billing without an ERP project.

Skip it if: you need certified payroll processed in-house or run multiple legal entities.

Sage 100 Contractor, Foundation, and Jonas

The three mid-market construction accounting options a plumbing contractor will actually be shown.

Sage 100 Contractor is real construction accounting — job costing, AIA billing, certified payroll, subcontract management. Pricing is not published and there is no free trial, which is worth stating plainly because several third-party sites present figures as though Sage published them. Implementation is a project, not a weekend.

Foundation is strongest on certified payroll and is frequently the answer for shops doing prevailing-wage public work. Also not published; expect a quote plus a real implementation cost.

Jonas is the notable one for plumbing specifically, because it handles the service-plus-construction hybrid better than most — a plumbing company running both a service division and a construction division in one system. That is precisely the reconciliation problem described above, and Jonas is designed for it. Pricing is not published.

Where all three fall down. Cost and implementation burden. These are five-to-six-figure first-year commitments once implementation, migration, and training are counted, and the productivity dip while people learn them is real. Below roughly $5M in revenue with no prevailing-wage work, they are usually premature.

Layer 2: AP automation

This layer is where the least content exists and, for a mid-size plumbing contractor, where a lot of recoverable time sits. It has its own dedicated guide — the best AP automation software for plumbing contractors — so this is the summary.

The distinction that matters: generic AP tools sync at the bill level; construction AP tools sync at the line-item level with job and cost-code assignment. For a plumbing contractor that difference decides whether job costing is accurate or approximately accurate.

• BILL and Ramp are the generic defaults, both with published pricing, both genuinely good at approval routing and payment execution. Neither is job-cost aware: reviewers consistently note BILL syncs at the bill level without committed costs, percentage-of-completion, or cost-to-complete.
• Stampli and AvidXchange are the construction-verticalized incumbents, with AvidXchange carrying lien-waiver handling and connectors to Sage 300 and Viewpoint. Both quote-only.
• Field Materials and MakersHub are the construction-native challengers, doing cost coding and three-way matching against POs. Quote-only.
• Dext is receipt and bill capture feeding QuickBooks — a good fit at the small end and not an AP workflow product.

The threshold worth knowing: construction AP buyer guides put the ROI crossover around 200+ vendor invoices a month, with manual entry consuming 20-40 hours a month per AP clerk. Below that, a bookkeeper and QuickBooks is usually cheaper than software.

Layer 3: material procurement

Only relevant to the commercial side. A service shop buys at the counter on a card, and no procurement platform models that well.

Kojo is the most established, and plumbing sits inside its mechanical trade coverage. Field requisitions from a phone against a pre-built vendor catalog, RFQs, POs, receiving, inventory, and tool tracking. Reviews consistently flag the learning curve, and it is a full implementation. Pricing is not published.

Field Materials leans further toward accounting — AI quote scanning, automated three-way match, and the deepest ERP integration list in the category, including Sage 100 Contractor, Sage 300 CRE, Foundation, and Deltek ComputerEase. Not published.

SubBase targets commercial specialty trades above roughly $10M and is the best answer when field adoption is the risk, because a foreman can send a photo instead of navigating a catalog. Not published.

Trimble Materials is the former StructShare, acquired May 2025. Strongest if you already run Viewpoint Vista, Spectrum, or Sage 300.

We have written a full procurement roundup covering all of these in depth, including where each falls short.

The honest caution on this whole layer: a procurement platform is a system of record, and its value is proportional to how completely your team uses it. If foremen keep calling Ferguson directly, the data is incomplete and most of the promised savings do not appear. Weigh field adoption as heavily as the feature list.

Layer 4: estimating — where commercial plumbing is genuinely underserved

This layer barely appears in general plumbing software content, and it is the center of a commercial sub's business.

FastEST — and one of the few published prices in the whole category

FastEST publishes its pricing in full, which almost nobody in trade estimating does. As of our last check: purchase at $4,995 for the first application and $2,495 for each additional, with the FastPIPE plus FastDUCT combination at $7,490. Lease is $250 per month for the first application, $105 for each additional, and $355 for the combination, with ownership after 36 payments. Optional annual maintenance after year one runs $1,250 for the first application and $250 for each additional; the first year is included with a purchase. There is a 60-day money-back guarantee.

Where it's strong. Purpose-built pipe estimating with published pricing and a real trial guarantee. For a commercial plumbing sub this is the most transparent purchase in the entire stack, and the fact that you can evaluate it without a sales process is worth something on its own.

Where it falls down. It is estimating only — no procurement, no accounting, no project management — so it is one component rather than a platform. Desktop-oriented, and the interface reflects its engineering-tool heritage rather than modern SaaS conventions.

The rest of the estimating layer

Trimble Estimation MEP and AutoBid Mechanical are the enterprise options; pricing is not published. QuoteSoft and WenPipe from Wendes serve the mid-market, and WenPipe is notable for pulling automatic pricing from Harrison and offering National Average, MCAA, or PHCC labor options. STACK is cloud takeoff with published pricing that varies by seat count; confirm current tiers on their site.

Layer 5: the pricing-data layer nobody writes about

This is the most under-covered topic in plumbing software, and it is where estimating accuracy actually comes from.

Harrison Publishing House and CINX supply list pricing for hundreds of thousands of piping and plumbing items, plus searchable MCAA and PHCC labor-unit catalogs. The standard Harrison price update service is $1,100 per location, billed annually — a published figure, and one worth knowing because most contractors do not realize this layer is purchasable.

The PHCC Labor Unit Database is cloud-based with more than 13,000 national-average installation times and third-party-verified labor hours, built with Harrison's CINX and working across a growing list of estimating platforms.

Why this matters for cost control. Plumbing estimating runs on list price times a multiplier, with labor units as the other currency. Which means there are three different numbers in play for the same fitting: the list price, the price your multiplier says you should pay, and the price on the invoice that actually arrived. Those three diverge quietly, and the last one is the only one that leaves your bank account.

Layer 6: field service management (service side only)

Covered exhaustively elsewhere on the internet, so this is deliberately brief and focused on the parts other guides leave out.

ServiceTitan is the enterprise default above roughly 20-25 technicians. Pricing is not published, and it is quoted per technician with a separate implementation fee. Two specific operational criticisms worth knowing before a demo, both well documented in review-site material: you cannot create an invoice without creating a dispatch under a technician, which means counter sales require a fabricated dispatch record; and changing the bill-to party to a tenant requires creating an entirely new account. Reviewers also cite long onboarding and support quality that does not match the product's complexity — a December 2024 Better Business Bureau filing from one customer reads "WE HAVE NEVER BEEN ONBOARDED…we have currently paid for 1 year even though we do not use the software." There are also multiple public reports of difficulty exporting data after cancellation. None of that means it is the wrong product at scale; it means the contract and the exit terms deserve as much attention as the feature list.

Housecall Pro and Jobber both publish pricing publicly and are the standard answers below roughly 10-15 technicians. Housecall Pro's tiers run from a single-user entry plan up through a multi-user top tier with per-additional-user pricing; Jobber tiers by user count. Confirm current figures on their pages, since both change tiers periodically.

FieldEdge, Service Fusion, Workiz, and ServiceM8 fill in around them, with Service Fusion notable for flat-rate unlimited-user pricing rather than per-seat.

BuildOps and ServiceTrade are the commercial mechanical and plumbing answers rather than residential ones, and are the right shortlist if your service work is commercial maintenance contracts. Both quote-only.

Layer 7: payroll and workforce

Arcoro publishes ExakTime pricing: Time Essential from $9 per employee per month, Time Professional from $11, and Time plus Payroll from $19, billed annually with volume pricing above 200 employees.

busybusy runs four editions from free up to a low per-user monthly rate with a Gusto-powered payroll add-on. Miter is construction-native workforce and payroll; pricing is not published.

The thing that decides this layer for a commercial plumbing sub is certified payroll. If you do prevailing-wage public work, certified payroll capability moves from a feature to a requirement, and it is the main reason Foundation gets bought.

Two stacks people actually run

Service and residential plumbing: ServiceTitan or Housecall Pro → QuickBooks Online → busybusy or Arcoro for time → BILL or Ramp for AP → invoice auditing on material spend

Commercial plumbing subcontractor: FastEST or Trimble Estimation → Knowify, Sage 100 Contractor, Foundation, or Jonas → Procore as a GC-mandated guest → Siteline for pay applications → Kojo or Field Materials for procurement → AvidXchange or Stampli for AP → Harrison or PHCC for pricing data → invoice auditing on material spend

How to choose, in order

1. Which business are you? Service, commercial, or both. If both, accept two stacks and plan the accounting-layer reconciliation deliberately.

2. Do you need certified payroll or AIA billing? If yes, QuickBooks Online alone will not do it and you are choosing between Knowify plus QuickBooks and a real construction ERP.

3. What is your invoice volume? Under roughly 200 vendor invoices a month, a bookkeeper is cheaper than AP automation. Over it, the arithmetic flips.

4. Is your problem ordering or pricing? The most common expensive mistake in this whole guide. If material ordering is chaotic — no POs, no records, constant "did that order go in?" — you need a procurement platform. If ordering works and you simply do not know whether your prices are good, a procurement rollout is a slow and expensive way to answer a pricing question.

Questions to ask on every demo

• Does this sync at the invoice level or the line-item level, with job and cost code?
• Is pricing published? If not, what is the all-in first-year cost including implementation, in writing?
• What happens to my data if I cancel, and in what format do I get it?
• Which of my suppliers are already connected?
• Six months after go-live, what percentage of a reference customer's material orders actually originate in the platform?

Where CostCrunch fits — and where it doesn't

We build CostCrunch, so treat this accordingly.

It is not any of the layers above. Not accounting, not an ERP, not field service management, not estimating, and not procurement — no requisitions, no purchase orders, no receiving, no inventory. If your problem is any of those, buy from the relevant section and nothing we do substitutes for it.

What it does is the material-price question the whole stack leaves open. You forward supply invoices to an email address, and every line item is extracted at 99% accuracy and checked against your own purchase history and local market rates. Overcharges, duplicate charges, quantity errors, and gradual price creep get flagged before you approve, and verified data syncs to QuickBooks, Sage, or FreshBooks.

The reason that is a separate question from three-way matching: matching confirms the invoice agrees with the PO and the delivery, which is valuable and structurally cannot tell you the price on that PO was over market when you agreed to it. Every document matches. You still overpaid. Across $125M+ in audited invoices from 500+ companies, contractors overpay an average of 4-8% on materials — on $500K of annual material spend, $20,000 to $40,000.

It is also trade-agnostic by design. There is no plumbing-specific module; it reads whatever is on your invoices, which is why it works the same for a service shop buying water heaters at the counter as for a commercial sub buying a quoted fitting package. It audits all material spend including counter pickups and emergency runs that never touched a PO, and setup takes about five minutes with no field workflow change.

Frequently asked questions

What accounting software is best for plumbing contractors?

It depends on which kind of plumbing business you run. Service and residential shops are generally well served by QuickBooks Online, which as of August 2026 runs $38 to $340 per month by tier. Commercial plumbing subcontractors typically need construction accounting for AIA progress billing, retainage, and certified payroll, which points to Knowify alongside QuickBooks at the smaller end, or Sage 100 Contractor, Foundation, or Jonas at mid-market — none of which publish pricing. Jonas is particularly worth evaluating for firms running a service division and a construction division together.

Do plumbing contractors need procurement software?

Only if material ordering is genuinely disorganized. Procurement platforms like Kojo, Field Materials, and SubBase are systems of record for requisitions, RFQs, purchase orders, and receiving, and their value depends on your team using them consistently — if foremen keep calling the supply house directly, the data is incomplete and the projected savings do not materialize. Service and residential plumbers buying at the counter on a company card generally get very little from this category. If ordering already works and the real question is whether your prices are competitive, that is a different problem and a procurement rollout is an expensive way to answer it.

How much does plumbing software cost in 2026?

It varies enormously by layer, and much of the category does not publish pricing. Published figures at our last check: QuickBooks Online $38 to $340 per month; FastEST pipe estimating $4,995 to purchase the first application or $250 per month to lease; Arcoro time tracking from $9 per employee per month; Harrison price updating $1,100 per location per year. Housecall Pro and Jobber publish self-serve tiers on their sites. ServiceTitan, FieldEdge, BuildOps, Sage 100 Contractor, Foundation, Jonas, Kojo, Field Materials, and SubBase all quote after a demo — treat any specific dollar figure you find for those as third-party estimation rather than a price.

What is the difference between software for service plumbers and commercial plumbing subcontractors?

Service and residential plumbing is organized around call volume, so the stack centers on field service management for dispatch, flat-rate pricing, and invoicing at the truck, with QuickBooks behind it. Commercial plumbing subcontracting is organized around bidding and buyout, so the stack centers on pipe estimating and construction accounting, with AIA progress billing, retainage, submittals, certified payroll, and supplier accounts — and frequently no field service software at all. Buying from the wrong side of that split is the most common expensive software mistake in the trade.

Is QuickBooks enough for a plumbing business?

For service and residential plumbing, usually yes. For a commercial plumbing subcontractor, QuickBooks Online lacks committed costs, percentage-of-completion revenue recognition, cost-to-complete reporting, AIA progress billing, and certified payroll — all of which are central to how a commercial sub gets paid and measured. Firms commonly patch those gaps with spreadsheets well past the point where the spreadsheets have become load-bearing. Knowify alongside QuickBooks is a common middle step before committing to a full construction ERP.

What should I know before buying ServiceTitan?

Pricing is not published and is quoted per technician with a separate implementation fee, so get the all-in first-year number in writing. Two specific operational constraints are well documented in review material: an invoice cannot be created without a dispatch assigned to a technician, so counter sales require a fabricated dispatch record, and changing the bill-to party to a tenant requires creating a new account. Reviewers also report long onboarding and support that struggles with the product's complexity, and there are multiple public accounts of difficulty exporting data after cancellation. Ask directly about exit terms and data export format before signing.

What is the pricing-data layer in plumbing estimating?

It is the subscription data that supplies list prices and labor units to your estimating software. Harrison Publishing House and CINX provide list pricing for hundreds of thousands of piping and plumbing items along with searchable MCAA and PHCC labor-unit catalogs, with the standard price update service at $1,100 per location annually. The PHCC Labor Unit Database offers more than 13,000 third-party-verified national-average installation times. Most contractors do not realize this layer is separately purchasable, and it is what makes estimates accurate rather than approximately right.

When does AP automation pay for itself for a plumbing contractor?

Construction AP buyer guides generally put the crossover around 200 or more vendor invoices per month, with manual data entry consuming 20 to 40 hours monthly per AP clerk. Below that volume, a bookkeeper working in QuickBooks is usually cheaper than software plus implementation. Above it, the labor saving becomes real — but the feature that matters for a contractor is line-item sync with job and cost-code assignment, not just approval routing. Generic AP tools that sync at the bill level leave your job costing approximate.

Does invoice auditing replace three-way matching?

No, they answer different questions. Three-way matching confirms that an invoice agrees with its purchase order and receiving record, catching quantity errors, phantom deliveries, and duplicate billing. Invoice auditing against market rates asks whether the price itself was reasonable, which your own documents cannot answer — an invoice can match its purchase order perfectly while that price was well above market. Matching also only covers spend that had a purchase order, which excludes counter pickups and emergency runs.

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The two decisions in this guide that cost the most money are both structural rather than about features. The first is buying from the wrong half of the split — service software for a construction business, or the reverse. The second is buying a procurement platform to answer a pricing question, which is a slow and expensive way to find out that your prices were fine or that they weren't.

Get clear on which business you are and which problem you have. The demos go much faster afterward.

Try CostCrunch free on your own invoices and see what a week of your own material spend looks like when someone reads every line.

Last verified: August 19, 2026. Software pricing and capabilities change frequently, and most vendors in this category publish no pricing at all. Verify current details directly before deciding — and if we have described any product inaccurately, tell us and we'll correct it.