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Valuations and Certificates

Certified on time, every time

Interim valuations built from the work actually done, certificates issued inside the contract's own window, and a payment calendar that runs from the date the contract was signed rather than from someone's diary.

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Interim Certificate No. 7

Due in 4 days

Valuation date 25 March · certificate due within 5 days · clause 4.9

Gross valuation
£1,284,500
Less retention 3%
−£38,535
Less previously certified
−£1,102,000
Amount due
£143,965
Final date for payment
8 April 2026

A pay less notice, if required, must be given no later than 3 April.

Interim valuations.

Built from work properly executed, materials on site and the instructions already issued, rather than assembled from scratch each month.

Payment notices on time.

Due dates, certificate windows and final dates for payment generated from the contract particulars, with reminders before each one.

Certificates to the end.

Interim, practical completion, making good and final, each citing the clause it is issued under.

The payment calendar runs itself

A late certificate is a liability, not an admin slip. Miss the window and the contractor's notified sum becomes payable. Avoice generates every valuation date, certificate deadline and final date for payment for the whole contract period on the day the contract is uploaded.

  • Full schedule of valuation and certificate dates from the particulars
  • Reminders before each valuation and each certificate deadline
  • Pay less notice deadline shown alongside every certificate

Payment calendar

Clause 4.9
ValuationCertify byFinal dateStatus
25 Feb2 Mar9 MarIssued
25 Mar30 Mar8 AprDue in 4 days
25 Apr30 Apr8 MayScheduled

Every date generated from the contract particulars on the day the contract was uploaded. Reminders before each one.

Valuations built from the job, not from a blank sheet

The instructions already issued are already in it. Variations priced at the time of issue carry through to the next valuation automatically, so the gross figure reflects the change register rather than needing it reconciled by hand each month.

  • Work properly executed, materials on site and variations in one statement
  • Retention applied at the contract rate, and halved at practical completion
  • The quantity surveyor's figures can be entered or imported where one is appointed

Valuation 07 · breakdown

25 March
ElementThis valuationCumulative
Preliminaries£42,000£302,000
Substructure£0£418,000
Superstructure£118,400£496,480
Variations AI-012 to AI-014£22,100£36,220
Materials on site£31,800£31,800

Gross £1,284,500. Variations pulled from the change register, not re-entered.

Certificates, from the first interim to the final

The documents that end the job properly. Practical completion starts the rectification period, halves the retention and stops liquidated damages. Making good releases the balance. The final certificate closes the account. Each is issued from Avoice with the right clause and the right consequences spelled out.

  • Interim, practical completion, making good and final certificates
  • Each one numbered, dated and filed to the project record on issue
  • Consequences of the certificate stated on its face, so nobody has to look them up

Certificate of Practical Completion

Draft

Clause 2.30 · Riverside Mills · prepared 14 August 2027

Effect
Rectification period of 12 months begins
Effect
Retention reduces from 3% to 1.5%
Effect
Liquidated damages cease to accrue
Effect
Insurance responsibility passes to the employer

Questions about valuations and certificates

Building ContractRetention, payment periods and damages come from here.InstructionsPriced instructions carry into the next valuation.RFIs and SubmittalsApproved submittals support materials on site.Contract AdministrationThe section overview.