QS QuoterInsights by AGMM
Running the business14 July 2026·5 min read

Hiring an estimator vs installing estimating software

Sooner or later every growing firm has the same conversation: the owner cannot keep pricing everything, so do we hire an estimator or put in software? Both can work. Both can be an expensive mistake. The right answer depends on your quote volume, your job complexity, and what problem you are actually trying to solve.

First, name the actual problem

"We need an estimator" usually means one of three different things. One: quotes go out too slowly and jobs are being lost to faster rivals. Two: the owner is drowning and the firm cannot grow past their working week. Three: pricing is inconsistent, some jobs make money, some quietly lose it, and nobody knows which until the end. These are three different problems, and the estimator-versus-software question lands differently for each.

Speed and owner-time problems are mostly processing problems: measurement, assembly, formatting, chasing rates. Consistency problems are mostly knowledge problems: rates and rules living in one person's head. Be honest about which one is costing you money, because you are about to spend real money fixing it. If it helps, our piece on scaling past the owner's head covers how to separate judgement work from processing work.

What a full-time estimator really costs

As a rule of thumb, a competent estimator in most UK regions is advertised somewhere between 35,000 and 55,000 pounds a year, more in London and for commercial experience. Add employer's NI, pension, holiday cover, a desk, software licences and recruitment, and the realistic all-in figure is often half as much again. That is before the risk column: notice periods, sick weeks, the possibility they leave after eighteen months and take the knowledge with them.

None of that makes hiring wrong. A good estimator brings things no tool does: they visit sites, read a client, smell a problem drawing, negotiate with subcontractors and carry relationships. If your work is complex, bespoke or heavily subcontracted, that human layer is the value, not the typing.

A simple way to place your firm Quote volume, low to high Job complexity, low to high Complex, occasional Freelance QS per job, software for the rest Complex, constant Hire the estimator, give them software Standard, occasional Software, owner reviews: a hire cannot pay back Standard, high volume Installed system first, hire later if still needed
Volume and complexity, not headcount fashion, should drive the decision.

What estimating software actually covers

Modern estimating software does the processing layer: it turns a job description or a set of drawings into measured quantities, prices them from a rate book, and assembles the documents. QS Quoter, to use the example we know best, produces a full bill of quantities at your own rates through a structured, reviewable path from measure to send, with a client-facing copy and a private copy showing your costs, and every line editable before anything goes out.

What software does not do is walk a site, charm a client, or negotiate a subcontract package. It also does not remove the need for judgement: someone senior still sets the rates and reviews the output. The honest framing is that software is a processing engine with your knowledge inside it, not a replacement estimator. If a vendor claims otherwise, read our piece on what AI estimating software actually does and does not do before signing anything.

FactorFull-time estimatorEstimating software
Annual costSalary plus on-costs, commonly 45,000 to 75,000 GBP all-inSubscription; installed systems from 2,000 to 10,000 GBP onboarding
WorkflowDelegated to a professional estimatorSoftware-assisted draft with human review
ConsistencyGood, but varies by person and moodSame rates applied the same way every time
Site visits and client readingYesNo, that stays with your team
Complex one-off packagesStrongNeeds human review and editing
Walks out the doorCanRate book stays yours
Capacity ceilingOne person's weekScales with volume
Rule of thumb: if your jobs are broadly repeatable (extensions, lofts, refurbs) and the bottleneck is volume and speed, software pays back first. If your jobs are genuinely bespoke and each quote is a small research project, a human estimator earns their keep, and you should still give them software so their week goes on judgement rather than typing.
Rough first-year cost, rule-of-thumb figures Estimator hire £45k to £75k salary, NI, pension, recruitment, desk Installed system £2k to £10k onboarding by scope plus 10% of tracked value, paid on results Neither number includes what matters most: whether the work suits a human or a system. See the matrix above.
Cost is the loudest difference but the weakest reason. Fit to your job mix decides which one pays back.

The third option: an installed system with support

There is a middle path that suits firms past the DIY stage: having an estimating system installed and configured inside the business rather than just buying a login. AGMM does this for commercial clients. The process is a discovery call to map how you price now, a written business case with the numbers, the install itself, then a pilot where the system runs alongside your existing process until the output has earned trust. Onboarding is scoped between 2,000 and 10,000 GBP depending on the size of the job, plus 10 percent of the tracked value the system creates, which keeps the incentive on results. Details are on the commercial page.

The reason this middle path exists is that most software failures in trade firms are adoption failures, not product failures. Somebody has to load your real rates, fit the tool to your workflow, and hold the team's hand for the first month. If nobody owns that, the licence becomes shelfware.

How to decide this month

  1. Count your quotes. How many went out last quarter, and how many enquiries died unquoted? The dead ones are the cost of the current setup.
  2. Time one quote honestly. Site visit to send, elapsed days and owner-hours.
  3. Classify your work. Repeatable domestic jobs, or bespoke one-offs?
  4. Run the cheap experiment first. Software costs days to trial; a hire costs a year to unwind. Try the tool on your next three real quotes, compare the output against what you would have sent, then decide whether a hire is still needed on top.

The blunt summary

Hire a person for judgement you lack. Install a system for processing you are drowning in. Most growing firms under about ten staff are drowning in processing, which is why the software route usually comes first and the estimator hire, when it happens, arrives later and does a better job standing on top of a system. Whichever way you go, the goal is the same: quotes out fast, priced consistently, without the owner's evenings as the raw material.

See what an installed system would look like in your firm

AGMM installs commercial estimating systems: discovery call, business case, install, pilot. Onboarding 2,000 to 10,000 GBP by scope, plus 10 percent of tracked value created.

Book a discovery call