Contract for work

A binding legal agreement between a client and contractor that defines the scope, price, timeline, and warranty for construction work. The contract specifies essential clauses such as payment terms, milestones, penalties, and defect liability.

What is a contract for work?

A contract for work (zmluva o dielo in Slovak) is the foundational legal agreement between a client (objednávateľ) and a contractor (zhotoviteľ) that governs residential or commercial construction projects. The contract obligates the contractor to deliver a completed, defect-free result by a specified date, in exchange for an agreed price. Unlike ongoing service contracts, a work contract focuses on a single, tangible deliverable: the finished building, renovation, or construction project. In Slovakia, work contracts are governed by either the Civil Code (for natural persons and mixed parties) or the Commercial Code (for two entrepreneurs), and the choice affects warranty periods, payment rights, and dispute resolution timelines.

What are the essential clauses in a work contract?

Every enforceable work contract must include the following mandatory elements: clear identification of both parties (names, addresses, business registration numbers for entrepreneurs), a detailed description of the work scope (materials, specifications, quality standards, site conditions), the agreed price and pricing model (fixed, budget-based, or estimated with a cap), the start and completion dates (including key milestones, if applicable), a handover protocol that describes how defects will be documented and accepted, and warranty conditions specifying the period, scope of coverage, and complaint procedure.

Beyond these mandatory elements, residential construction contracts should also include: a payment schedule (advance %, milestone triggers, retention amount, and final release conditions), ownership and risk allocation (when property rights transfer to the client, who bears the cost if the building is damaged during construction), performance control mechanisms (site inspections, progress reports, quality verification), contractual penalty clauses for missed deadlines, liability terms distinguishing between defects present at handover and those discovered later, a change-order procedure requiring written amendments for scope modifications, and insurance requirements (such as construction insurance covering the contractor's liability and site risks).

A typical payment schedule for Slovak residential construction follows three stages:

Payment Stage Timing Percentage Purpose / Trigger
Advance Payment Upon contract signing 10–30% Material procurement, site setup, labour mobilization
Progress Payments Milestone-based (work phases) 40–70% Foundation completion, roof structure, internal finishes (divided into sub-milestones)
Retention (Final Payment) After handover protocol signed 5–10% Defect inspection complete; contractor has remedied items in handover protocol

This structure protects the client by ensuring the contractor remains financially motivated to complete the work and fix defects.

How do Civil Code and Commercial Code regimes differ?

Slovak law provides two parallel legal frameworks for work contracts, each applying to different parties and creating distinct obligations. Understanding which regime governs your contract is critical because the differences affect warranty length, complaint procedures, payment rights, and enforceability.

Aspect Civil Code (Občiansky zákonník §631–656) Commercial Code (Obchodný zákonník §536–565)
Parties Natural persons (non-entrepreneurs), or one entrepreneur + one non-entrepreneur Two entrepreneurs (business entities). Non-entrepreneurs may opt in if explicitly agreed in writing
Warranty Period (Construction) 3 years (mandatory, non-negotiable) 5 years (negotiated; can be shorter if both parties agree)
Warranty Period (Other Work) 24 months Negotiated by parties (no statutory minimum)
Complaint Deadline 30 days to report a defect from discovery Without delay (bez meškania)—more flexible but demands immediate action; no fixed statutory period
Advance Payment Right Contractor has statutory right to advance payment if work requires significant costs (amount not defined) No automatic right; must be negotiated explicitly in contract
Price Adjustment Fixed price is standard; significant cost overruns may be disputed Flexible; parties may negotiate adjustments, but contract should specify the method
Contractual Penalties Allowed; must be reasonable and proportionate Allowed; may be negotiated, including daily/weekly delay penalties and quality reduction clauses

For most residential projects in Slovakia, the Civil Code applies because the homeowner is a non-entrepreneur. This means the warranty for construction work is a fixed 3 years and cannot be shortened, providing strong protections for residential clients. If you are a business owner entering a contract with a contractor who is also a business entity, the Commercial Code applies, offering both parties greater flexibility but requiring all terms to be explicitly negotiated.

How does a work contract relate to the procurement process?

A work contract is the final legal document executed after the contractor tender process is complete. During tender, the client (often working with an architect) solicits bids from multiple contractors, evaluates proposals, and selects the winning bidder based on price, experience, and approach. Once the contractor is selected, the formal work contract is drafted, incorporating the tender specifications, the contractor's proposed price, timeline, and site conditions. The contract transforms the tender offer into a binding, enforceable agreement with defined legal consequences for breach or defects.

What happens during building handover and warranty?

Upon completion, the contractor notifies the client that the work is ready for building handover (odovzdanie stavby). A joint inspection occurs, with both parties present, to identify any visible defects, incomplete work, or unmet specifications. Defects are documented in the handover protocol, and the contractor commits to remedying them within an agreed timeframe (typically 14–30 days). Once all agreed defects are corrected, both parties sign the handover protocol, and the warranty period begins.

The warranty period is the post-handover window during which the contractor remains liable for defects caused by poor workmanship or material failure. During this period, the client may report defects at any time, and the contractor is obligated to repair them at no additional cost. Defects liability covers workmanship, material quality, and structural soundness but does not cover normal wear and tear or damage caused by client misuse. The warranty period ends on its specified date (3 years under Civil Code, or as negotiated under Commercial Code), and any defects reported after that date are generally the client's responsibility.

How is a work contract different from a service or supply agreement?

A work contract (zmluva o dielo) obligates the contractor to deliver a completed, defect-free result. The contractor bears the risk that the work meets specifications; if it does not, the contractor must fix it at no cost. The contract specifies an end date by which the result must be delivered and a warranty period during which defects can be reported and remedied. In contrast, a service contract (zmluva o službu) covers ongoing activities—such as project management, supervision, or maintenance—and the contractor's obligation is to perform the services diligently, not to guarantee a specific outcome. A supply agreement covers the purchase of materials or goods and typically includes only a limited warranty on the product's conformity at the time of delivery, not ongoing defect liability. For residential construction projects in Slovakia, the main contract is a work contract, supplemented by separate service contracts if the architect or construction supervision consultant is retained independently.

Frequently asked questions

What is the difference between a zmluva o dielo (contract for work) and other construction contracts?
A zmluva o dielo is a work contract governed by either Slovak Civil Code or Commercial Code. It obligates the contractor to deliver a finished, defect-free result by a specific date. Unlike a service contract (zmluva o službu), which covers ongoing services, a work contract focuses on a single deliverable: the completed building or renovation. It is distinct from a labour-only or rental agreement.
How should payment be structured in a work contract?
Payment typically follows a three-stage model: advance payment (10–30% upon signing), progress payments tied to milestones (e.g., 30% at foundation, 40% at roof, etc.), and final payment held in reserve until defect inspection. The held amount—called retention—is usually 5–10% of the total price, released after the handover protocol is signed and the warranty period begins. Fixed-price contracts shift the cost risk to the contractor; budget-based contracts allow adjustments if the scope changes.
What are the warranty periods, and do they differ between contract types?
Under Slovak law, warranty periods depend on the legal regime. Civil Code work contracts guarantee 3 years for residential construction and 24 months for other work. Commercial Code contracts typically negotiate 5 years for construction. The warranty period begins the moment the contractor hands over the completed work and the client signs the handover protocol. Defects discovered within this window can be reported and remedied at the contractor's cost.
What can the client do if defects appear after handover?
The client must document the defect and report it within the complaint period: 30 days under Civil Code, or as negotiated under Commercial Code. Once reported, the contractor is obligated to repair the defect at no cost or, if repair is impossible, offer a price reduction or contract cancellation. If the contractor refuses, the client may hire another contractor to fix the defect and recover costs from the original contractor through court or alternative dispute resolution.
Can the warranty period or essential clauses be modified?
In Civil Code contracts, the 3-year warranty for residential construction is mandatory and cannot be shortened. In Commercial Code contracts between entrepreneurs, both parties can negotiate shorter or longer warranty periods, advance payments, and penalty clauses. However, all essential clauses—party identification, work description, price, completion deadline, and handover procedure—must be clearly written and agreed by both sides to be enforceable.
What happens if the contractor misses the completion deadline?
If the contract includes a contractual penalty clause (zmluvná pokuta), the contractor is liable for daily or weekly penalties. A typical residential project might specify 0.5–1% of the total contract price per week of delay. If no penalty clause exists, the client may still claim damages if the delay causes documented harm. The contract should also specify whether weather delays, client-caused changes, or municipality permit delays extend the deadline.