Flat-rate vs enterprise software: the real cost for SMB contractors.

Why the sticker price tells you almost nothing.

When you ask an enterprise construction platform "how much?", you usually don't get a number - you get a discovery call. That's not necessarily a trick. Big suites are genuinely configurable, sold by edition and module, and priced against the size and complexity of your business. But it does mean the figure you eventually sign is built from several layers, most of which aren't visible at the start.

For a small or mid-sized contractor, the gap between the first quote and the true first-year cost can be large. Understanding the layers is the only way to compare two options fairly - so let's lay them out, then put illustrative numbers against them.

What actually makes up enterprise TCO.

Total cost of ownership (TCO) is the whole bill to get a system live and keep it running - not just the licence line. For enterprise construction software, it typically breaks down into the following layers:

• Per-seat or volume-based licensing. Either a price per named user, or a fee tied to your annual construction turnover or build value. Volume-based models mean a busy year can quietly increase your software bill.
• Module and add-on pricing. Capabilities are often sold separately - finance, document control, field/mobile, QA, timesheets, analytics. The base platform is the start; the features you actually need are line items on top.
• One-off implementation and onboarding fees. Data migration, system configuration and go-live support are frequently charged as a separate up-front project, sometimes a significant share of year-one cost.
• Paid consultancy and configuration. Tailoring workflows, building reports and integrating other systems is often delivered by the vendor's professional-services team or a third-party partner, billed by the day.
• Training. Admin and end-user training, refreshers when staff turn over, and the productivity dip while teams learn a complex system.
• Long, multi-year contracts and annual uplifts. Enterprise deals commonly run on multi-year terms with annual price increases (often inflation-linked or fixed-percentage), so the cost rises over the life of the contract.
• Internal admin time. Someone has to own the system - maintaining configuration, managing licences, running upgrades and being the in-house expert. That's a real, recurring cost even when it isn't on an invoice.

None of these are inherently unreasonable. They're the natural shape of software built to flex across very large, very different organisations. The question is whether a smaller contractor needs that flex - and is getting value for the layers they're paying for.

Where enterprise suites and SMB contractors don't fit.

Enterprise platforms are engineered for scale and complexity: many concurrent programmes, deep finance and procurement, large stakeholder networks, and dedicated IT and commercial teams to run it all. That's exactly right for a tier-one contractor or a large housebuilder.

For a firm running a handful of sites with a lean office, the same strengths can become friction:

• Paying for scale you don't use. Volume-based or heavily-tiered licensing assumes a size of business that a growing contractor simply hasn't reached yet.
• Paying per module for things that should be standard. Buying invoicing, QA and mobile as separate add-ons stacks up - especially when you need most of them.
• Slow to go live. A multi-week or multi-month implementation delays any return on the spend, and ties up the very people you can least spare.
• Admin overhead you can't staff. Without a dedicated system owner, complex platforms get under-used - you pay for capability that never gets switched on.

The result is a familiar pattern: a capable, expensive system where only a fraction of the modules are ever adopted, and the office still falls back on spreadsheets for the rest.

The flat-rate model, in plain terms.

Flat-rate pricing collapses most of those layers into a single, predictable number. DuoApp is built this way:

• One price per user - £10 per user, per month. That's the line. You can budget for it on the back of a fag packet.
• Every feature included. Projects, CIS-ready invoicing, smart approvals, timesheets, file management, document compliance, QA and the mobile app are all in - no per-module upsell.
• No tiers. The apprentice and the MD see the same full app on day one. There's no "upgrade to unlock" wall.
• No per-project or volume-based fees. A busy year doesn't inflate your software bill. Your cost is simply users × £10.
• Live in days. No mandatory implementation project, no consultants required - set up a project, invite your team and subbies, and you're running this week.

The trade-off is honest: a flat-rate platform is deliberately right-sized, not infinitely configurable. You're not buying a bespoke ERP. What you gain is a price you can read off a webpage and a system the whole team will actually use.

An illustrative total-cost comparison.

To show how the layers add up, here's an illustrative first-year comparison for a 15-user contractor. The enterprise figures below are not quotes from any named vendor - they're plausible placeholder numbers chosen only to demonstrate how add-ons, implementation and consultancy inflate a total relative to a flat per-user fee. Your real figures will differ; always get a written quote.

Illustrative example only. The enterprise column uses placeholder figures to demonstrate how cost layers accumulate; it is not a price quoted by, or attributed to, Procore, Access COINS, Eque2 or any other named vendor - their pricing is custom and quote-based. The DuoApp column reflects published flat-rate pricing of £10 per user, per month with all features included. Competitor pricing varies by edition, module, volume and negotiation, and should be confirmed directly with each vendor.

The point of the table isn't the exact numbers - it's the shape. A flat-rate model is essentially one line. An enterprise total is that line plus several more, with the biggest one-off costs landing in year one before you've seen any return. Even allowing for a much lower enterprise quote, the add-on, implementation and consultancy layers are where SMB budgets get stretched.

When enterprise is genuinely the right call.

Flat-rate isn't the answer for everyone, and it would be dishonest to pretend otherwise. There are real situations where an enterprise suite earns its cost:

• Very large or highly complex programmes. Tier-one contractors and large housebuilders running many concurrent, multi-stakeholder projects need the depth and configurability that enterprise platforms are built for.
• Deep ERP and finance integration. If you need full job costing, procurement, plant, payroll and HR woven into a single ledger, a construction ERP is the right tool - and worth the implementation.
• Specific compliance or contractual requirements. Some frameworks, public-sector contracts or audit regimes mandate particular controls, data residency or reporting that a configurable enterprise system handles best.

If that's you, the layered cost is buying genuine capability. The mismatch only appears when a smaller firm pays for that machinery and uses a fraction of it.

Compare the total, not the headline.

When you're weighing up construction software, add up the whole picture: licensing, modules, implementation, consultancy, training, contract length and the admin time to run it. For many UK SMB contractors, a flat-rate platform that includes every feature and goes live in days comes out ahead on both cost and adoption - precisely because there are no layers to stack.

For a feature-by-feature view of how DuoApp lines up against the big platforms, see the full comparison. And whatever you're evaluating, ask each vendor for a written, all-in first-year figure - it's the only fair way to compare.