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MEP design firms / Additional services

Find additional work.
Before it becomes free.

For MEP consulting firms, an AI-assisted audit can compare the signed scope, revision limits, project communications, and time records to surface design work that may have qualified for an additional service—but was never recognized or billed.

Example workflow using one completed MEP project.

The starting point

The redesign happened.
The additional service didn't.

On a fixed-fee MEP project, an architect or owner can request a change that quietly creates hours of mechanical, electrical, and plumbing redesign. The request may live in an email while the resulting work appears only in drawings and timesheets.

The useful question is not whether scope creep exists. It is whether the firm performed genuinely billable work, failed to recognize or act on it, and can support that conclusion with evidence.

A completed-project audit

Four records.
One missed question.

Example: a hospital renovation. Expand each record to see how contract language, project history, and work performed support—and limit—the finding.

01 / Source evidence

01
Signed proposal

MEP scope · Section 2.3

Fee includes one coordinated equipment-layout revision following design development approval. Later owner-directed revisions are additional services.

Establishes the included revision and the condition for additional work.

02
Revision history

Issue record · June 12

Revision 01 issued: kitchen equipment layout updated and coordinated across mechanical and electrical drawings.

Shows that the included revision appears to have been used.

03
Architect email

Kitchen layout request · August 21

The owner changed the kitchen layout again. Please revise the HVAC and electrical design for the attached plan.

Documents a later, client-directed request affecting two disciplines.

04
Project records

Time and ASR review · August 21–23

Mechanical: 6.5 hours. Electrical: 5.0 hours. No matching additional-service request found in the supplied project records.

Correlates the request with work performed; absence still requires human verification.

02 / Prepared for review

Example output

Owner / PM review required

Kitchen redesign after
the included revision.

The supplied records indicate that the included revision was used before a later owner-directed change created 11.5 hours of mechanical and electrical redesign.

Included revisions
One coordinated revision [01]
Revision consumed
Issued June 12 [02]
Later request
Owner-directed change [03]
Work recorded
11.5 hours; no ASR found [04]

Decision for the owner or project manager

Was this a genuinely missed additional-service opportunity?

  • Confirm the request was client-directed, not corrective work.
  • Check later approvals, ASRs, and invoices.
  • Validate entitlement, effort, and any reasonable fee.

Example finding. The owner or PM validates the contract context, effort, and fee before taking action.

The critical distinction

Not every unbilled hour
is recoverable revenue.

A scope difference is a reason to investigate, not proof that money is owed. The owner or project manager needs the full contract and relationship context to decide what actually happened.

Only the final category below validates the business case. Every decision should return to the audit with a reason so the same known exception is not raised again.

  1. 01Already billed

    A matching additional-service request or invoice exists.

  2. 02Intentionally waived

    The team recognized the work and chose to absorb it.

  3. 03Not billable

    It was included work or correction of the firm's own error.

  4. 04Ambiguous

    The available records do not support a confident decision.

  5. 05Genuinely missed

    A billable opportunity was not recognized or acted on.

The Scope Bank

Goodwill should
have a balance.

Firms may reasonably waive a small change to protect a client relationship. The economic picture changes when small favors accumulate across a project or client.

A Scope Bank preserves those decisions and gives the next request context—without turning every email into an alert.

Example Scope BankAugust

Acme Architects

Hospital renovation

  • Lighting revision~$570Waived
  • Kitchen equipment change~$860Waived
  • Extra coordination~$380Waived
  • Panel redesign~$1,330Review
Absorbed this month
~$1,810
Potential with current request
~$3,140
Example estimates. The firm validates actual effort, entitlement, and fee.

What to measure

Measure recovered value.
Not detected noise.

A useful review separates potential findings from additional services the firm can actually approve and pursue.

Genuinely missed revenue
Count only opportunities the owner or PM validates as billable, unrecognized, and not intentionally waived.
Candidate quality
Track false alarms, ambiguous findings, and known additional services the audit failed to surface.
Time to a decision
Measure how quickly an owner or PM can understand the evidence, resolve missing context, and classify a finding.
Commercial outcome
Track approved additional services separately from fees billed and revenue actually collected.

Common questions

Before sharing
project records.

A focused audit narrows the search and preserves the evidence. It does not replace the commercial judgment of the firm.

What counts as a genuinely missed additional service?
Only work that the owner or project manager confirms was outside the agreed scope, was not already billed, was not intentionally waived, and was not caused by the firm's own error. A detected scope change is only a candidate until that review is complete.
What project records are needed for a review?
A completed-project audit can begin with the signed proposal or SOW, exclusions, relevant emails, RFIs or meeting notes, and approved additional-service requests. Timesheets are useful when they can connect a request to work performed.
Does AI decide what is billable or contact the client?
No. The audit prepares an evidence-backed candidate for review. The firm decides whether the work was included, already billed, intentionally waived, not billable, ambiguous, or genuinely missed. Nothing is sent to a client automatically.
How does a first review work?
Start with one completed project. Review the signed scope alongside relevant project communications, approved additional services, and timesheets, then put the strongest evidence-backed candidates in front of the owner or project manager.

A completed-project audit

Start with one project.
Find one real miss.

Share the signed scope, relevant project communications, approved additional services, and timesheets if available. We will return evidence-backed candidates for an owner or PM to classify.

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