Defect Management and Construction Acceptance

Defect Management and Acceptance: From Construction Site to Operation

A finished-looking building can still have leaking joints, incomplete controls or missing commissioning records. Acceptance of construction work is the point at which the client confirms the work as essentially contract-compliant. It also affects payment, risk and the limitation period for defect claims. A structured handover joins the site team’s punch list to the operating team’s maintenance and asset records.

Before acceptance: create one defect register

Start with the contract, specifications and approved changes. Inspect each area with the responsible trade and record a defect by location, component, observed condition, photo, date and contractor. Separate incomplete work, defects and remaining documents so each item has an owner and a route to closure. Safety-critical faults need immediate control; a cosmetic issue can be scheduled without losing its record.
Collect the evidence the operating team needs: test and commissioning reports, as-built plans, equipment lists, manuals, access credentials, keys, maintenance requirements and warranty contacts. A system that has passed a short demonstration may still be difficult to operate if these records have not been transferred.

Inspector holding a building inspection checklist

What should the acceptance report contain?

Field	What to record
Contract and inspection	Project, trade or defined section, parties, date, attendees and inspected scope.
Decision	Accepted, refused with identified significant defects, or a specifically agreed follow-up procedure.
Defects and reservations	Precise location and description, photographs, contractor, cure date and reservation of rights for known defects.
Tests and documents	Functional tests, commissioning results, missing records, keys and asset data.
Close-out	Who checks the remedy, how completion is recorded and which items pass to building operations.

Under § 640 BGB, a client must accept substantially compliant work; insignificant defects alone do not justify refusing acceptance. If the client knows a defect at acceptance, rights to subsequent performance, self-remedy and reduction or withdrawal under § 634 nos. 1–3 BGB must be expressly reserved. Record the defect and reservation in the signed acceptance report. If significant defects justify refusal, name them clearly and arrange a new inspection once remedied. Silence after a contractor’s completion notice and reasonable deadline can also lead to deemed acceptance under the BGB conditions; acceptance should therefore have a clear owner and calendar.

BGB and VOB/B: check the agreed framework

The VOB/B applies as contractual terms when it has been effectively incorporated. Its acceptance procedure and defect rules differ from the BGB defaults. Read the signed contract and any individually agreed periods before setting deadlines. Partial acceptance of a self-contained part can start a separate limitation period for that part.

Issue	BGB building contract	Effective VOB/B
Typical limitation for building defects	Generally five years from acceptance under § 634a BGB.	Generally four years from acceptance if the contract sets no different period under § 13(4) VOB/B.
Acceptance procedure	§ 640 BGB; refusal requires at least one named defect for the deemed-acceptance mechanism.	§ 12 VOB/B provides formal and deemed-acceptance routes with specific conditions and periods.
Defect demand	Seek subsequent performance and normally set a reasonable cure deadline before self-remedy.	Written demand before expiry under § 13(5) VOB/B; then set a reasonable cure deadline for the next step.

The four-year VOB/B figure is not a universal “warranty”: a contract may set another term and certain technical equipment may have special rules. The clock and applicable terms should be recorded for every accepted package. Formal acceptance and deemed acceptance under § 12 VOB/B have their own deadlines, so a request for acceptance must not disappear in a shared inbox.

Construction plans and project documents next to a hard hat

Defect notice and cure deadline after handover

Identify the contract, acceptance date, affected work and current limitation end date.
Describe the observable defect precisely, attach photos and records, and send the notice to the contractual counterparty through a provable channel.
Request a remedy and set a reasonable cure deadline according to the defect and urgency; keep access and safety arrangements clear.
Inspect the remedy, record any remaining defect and close the item only when the required result is verified.

There is no single statutory “defect notice within 14 days” rule for every building defect. A cure deadline is also distinct from the limitation period for the claim. Under § 13(5) VOB/B, the demand for remedy must be in writing before expiry; for a defect notified in this way, the claim to its remedy has a specific two-year limitation rule, no earlier than the standard or agreed period’s end. When limitation is close, obtain contract-specific advice promptly. Urgent measures to prevent harm should be documented while the contractor is notified.

Transfer open items into building operation

Give the facility team the accepted scope, asset and maintenance data, open defects, deadlines, access rules and contractor contacts in one place. Set reminders for remedy inspections and limitation dates; report new faults against the correct trade rather than burying them in routine maintenance. Wowworks can coordinate suitable local trades for follow-up work at commercial properties and keep work orders and completion records visible across sites. The project’s contractual acceptance and defect claims remain with the authorised client team.

Facility manager inspecting technical systems after construction handover

How Wowworks helps with work after handover

Wowworks coordinates technical follow-up work at commercial properties in Germany after construction handover. A facility team can route outstanding repairs to suitable local trades and track work orders and completion records centrally. This helps keep operational work connected to the open items recorded at handover across several sites. Contractual acceptance, the assessment of defect claims and decisions about enforcement remain with the authorised client team.