Clear prices · Agreed scope

Investigation fees, without surprises.

Choose a defined fixed-price investigation or an hourly arrangement with an agreed maximum budget. Every enquiry begins with a free initial conversation and no-obligation quotation.

First step

Initial consultation & quotation

Free

Tell us about your property or proposed detail.

  • Initial telephone or email conversation
  • Review of the information you provide
  • No-obligation scope and quotation
Request a free quotation
Fixed-price option

Focused site investigation

From £350

A defined investigation with a concise written report.

  • Up to two hours of agreed on-site investigation
  • Relevant site observations and measurements
  • Concise written findings and recommended next steps
Discuss an investigation
Flexible option

Hourly investigation

£100 / hour

For an evolving or more complex investigation.

  • Two-hour minimum for on-site visits (£200)
  • Actual time recorded within an agreed budget cap
  • Report and travel priced separately unless included in your quote
Ask about hourly work

Report-only fees

A standard written site-investigation report costs £150 when not included in the agreed site package. Separate straightforward desktop building-physics reports start from £100; detailed technical reports are quoted individually.

Building physics & junction solutions · From £100

A straightforward single-build-up U-value calculation or initial desktop junction review starts from £100 with a concise PDF and agreed assumptions. Detailed 2D ψ-value modelling, WUFI hygrothermal assessments, multiple junctions and remedial-design reports are scoped and quoted individually. Desktop reports are separate from the £350 site-investigation package.

Explore technical reports

Travel & additional work

UK-wide enquiries welcome. Any additional travel, parking, accommodation or extra investigation stages are included in the quotation or agreed with you before being incurred.

Prices are indicative starting fees, not an instant booking or a guarantee that every investigation fits the standard package. Your quotation confirms the work included, report deliverables, payment stages, travel, any applicable VAT and a maximum agreed fee for hourly work. No extra work is charged without your approval.

Not sure what you need?

Find your service and guide fee

Choose a service, see the relevant guide fee and send your project details when ready.

1. Service2. What you need3. Guide fee & enquiry

What do you need help with?

Choose one of our four services.

How Vertex supports your project

Before, during and after your service

Your fee pays for the agreed technical work; the initial enquiry conversation and quotation are free. We also help you understand the next steps and keep the relevant project information organised.

What happens in the Vertex CRM?

After you submit the enquiry form, the system creates an internal project with a reference and schedules a team follow-up. Our team reviews your brief and manages the quotation, agreed activities, report and invoicing there. The CRM is a tool for our team; it does not automatically accept quotations, reserve appointments or send technical advice on behalf of an engineer.

Your private client account, when enabled

Access is by project and must be authorised. It is not required to request a fee or submit an enquiry.

Access by invitation or an approved account grant

The client portal is optional. Vertex must approve the relevant project and email address; receiving an enquiry reference does not create portal access. Depending on the account setup, you may receive an invitation or be asked to register or sign in using the authorised email.

Your own project, not the whole CRM

Once signed in and granted access, you can view the relevant project information and confirmed appointments. Other clients’ projects, draft internal documents and team notes are not available through your account.

Quotations, reports and invoices when released

Vertex reviews and issues each document before sharing it to your portal. You may be able to view a released document on screen or open its attached PDF. A new enquiry does not mean a report or quotation is already available.

Contract requests only when applicable

If a signed-contract request is added to your project, the portal may offer an upload step. Do not upload sensitive signed documents until Vertex has confirmed the appropriate secure submission method for your project.

Additional help, with a clear scope

You can ask us to clarify the agreed findings, explore a further junction or build-up, or discuss what information a different specialist would need. Any substantial new analysis, return visit or additional report is scoped and quoted before it begins; free initial guidance is not unlimited consultancy or a guarantee of defect resolution.

Have a different question?

You can ask about inclusions and scope—or send your enquiry without using chat.