Construction defects: the new deadline mainly changes the organisation

A defect does not always emerge with the drama of a cracked façade. It may begin with a lost email, a vague reservation in an acceptance report or a photograph whose date nobody can establish. Since 1 January 2026, Swiss law has given clients a mandatory period of at least 60 days to notify an apparent defect after delivery or a latent defect after discovery. The right to have certain construction defects rectified can no longer be excluded by contract. The change protects clients, but it does not replace evidence or coordination. This article shows where general contractors, trades, developers and advisers need to change their contracts and acceptance procedures . It turns the reform into a specific first engagement: review a sample of contracts and project files, then prioritise the corrections. Relevant acquisition signals include outdated contract templates, forthcoming handovers and warranty portfolios—not public allegations of poor workmanship. General analysis updated on 7 August 2026. It is not a substitute for advice on a specific legal matter, a technical expert opinion or a court decision.

Since 1 January 2026, the new rules have imposed a notice period of at least 60 days for certain apparent and latent defects and prevented contracts from excluding the right to rectification in the cases covered. They apply to contracts concluded under the new regime. They never remove the need to identify, document and notify a defect properly.

The Federal Council set the commencement date after Parliament adopted the reform in December 2024. The Coordination Conference for Public Sector Construction and Property Services (KBOB) subsequently published updated templates in February 2026. These documents show why the reform involves more than changing a number: purchase orders, framework agreements, general contractor agreements and total contractor agreements must all remain consistent with the new rights.

A longer period does not prevent evidence from being lost because it starts with an event that must itself be dated: delivery for an apparent defect and discovery for a latent one. Without an acceptance report, contextualised photographs, a technical description and an identified recipient, a team may have more time yet still not know when to act, what to request or who should decide.

A reservation marked simply “to review” records neither its extent nor its urgency. A photograph without a point of reference may not show how a condition develops. A workable process therefore assigns an owner to each report, sets a decision date and defines an escalation rule. It keeps protective measures, expert assessment and formal legal notice distinct.

The first saleable diagnostic is a tightly scoped review of contract templates and three to five acceptance files. It compares clauses, reports, the reservations register, notices and assigned responsibilities. The output is a prioritised list of corrections and a model workflow. It does not certify every project in the portfolio or guarantee that no dispute will arise.

The partner selects a representative sample: a completed project, a forthcoming handover, a project with substantial subcontracting and a file that has already produced a reservation. The review checks whether each contract version matches its conclusion date and whether the internal process preserves evidence. Price, number of files and turnaround must be agreed before any campaign begins.

Priority should go to contracts concluded from 2026 onwards, imminent handovers, projects with several parties and files in which evidence moves between the site, construction management and administration. Priority does not imply that a defect exists. It means that a mismatch in the contract or process would have a serious impact if a defect were reported.

Earlier contracts must still be assessed under the regime that applies to them. Combining every generation of contract in one campaign produces imprecise advice. Responsible segmentation uses the contract date, the organisation's role, the next handover and the complexity of the contractual chain. This enables the partner to offer a relevant diagnostic without presuming non-compliance.

The conclusion date alone will not always classify a file. A 2026 amendment may change an earlier contract without automatically placing the entire relationship under a single regime. A property sale, a works contract and a subcontract also put the parties in different positions. Before recommending a correction, the diagnostic therefore records the contract family, versions, appendices and order of precedence.

The priority project is one where the review can still change a concrete action. Before handover, the team can align the acceptance report, name the recipients and test the register. Once a defect has been discovered, it must instead preserve the facts, organise expert input and have the notice checked. These are different services and should not be combined in one campaign: the first prevents loss of evidence; the second supports an active matter and requires stricter conflict checks.

The partner also maps dependencies involving insurers, architects, construction managers and subcontractors. It does not promise that a revised clause will transfer risk. It shows who receives information, within what period and in which document. That map remains useful even if the review ultimately finds that no major contract amendment is needed.

Acceptance records the observable condition and organises reservations; discovery of a latent defect begins a separate sequence; rectification is a right whose exercise depends on the individual case. The organisation must record every event, preserve each party's position and obtain appropriate review of sensitive choices. One register cannot replace expertise, but it can stop steps from disappearing.

How to read the diagram. The period protects an opportunity to act; the process turns that opportunity into an assigned decision.

The pool includes general and total contractors, specialist construction SMEs, construction managers, developers, cooperatives, property managers and advisers who use contracts or manage handovers. Swiss construction is dominated by SMEs, but they are not all ready to buy at the same time. An imminent handover or a 2025 template still in use is a stronger signal than an industry code alone.

A campaign can combine awarded tenders, permits, announced project portfolios, recruitment of site managers and professional partnerships. Search captures explicit demand around periods and templates. Direct outreach should discuss updates and processes, never an alleged defect.

Beyond the midpoint of this article, the Building and construction market page connects this review with public procurement and the energy Impulse Programme. The decision-maker may be similar, but the first purchase is different: here it safeguards contracts and acceptance; elsewhere it qualifies a bid or funding route.

Channels should reflect the prospect's stage: explanatory content for search, professional networks for clients, direct contact following an observable handover and a short meeting to establish which templates are in use. The message changes with the role. A contractor reviews its commitments; a client organises its notices; an adviser looks for a representative sample to assess.

Measurement compares qualified conversations, commissioned diagnostics and margin—not forms and clicks alone. A channel producing many out-of-scope enquiries can cost more than a focused partnership. The criteria for continuing or stopping each channel should be set before the campaign.

A review becomes recurring when a new contract template, a new handover or lessons from experience justify a distinct check. The service may include a quarterly review of exceptions or training for responsible staff. Every cycle must close actions. Reviewing the same files repeatedly without a change or decision does not create recurring value.

The Federal Council establishes the commencement date and principal rights; Fedlex publishes the amended Code of Obligations; and KBOB provides the public-sector templates updated in 2026. These sources establish dates and support a general understanding. They do not determine whether a defect exists, which party is liable or how a rectification claim will end.

The private sources in the research file retain their addresses and access dates. This article names the authorities without publishing external links. Before any campaign, the partner confirms the legal scope, the documents it is prepared to review and its procedure for managing conflicts.

The free eligibility test considers your specialism, clients, initial sample, acquisition challenge and ability to deliver a clear review. It does not give an opinion on any construction project. It establishes whether getfishnet and your team could build a tailored strategy around a dated reform and a service that clients can genuinely buy.