Construction and development · Czechia and Slovakia
Construction works contract
On site, the dispute is rarely whether construction happened. It is what the price included, who approved a change and when the work was accepted. We prepare or review the construction and installation contract to answer these questions in advance: budget and bill of quantities, variation process, retention, invoicing milestones, the site diary as evidence, acceptance and warranty. Slovak and Czech law from one office.
- Lawyer registered with the Czech and Slovak Bar Associations
- Clients, contractors and subcontractors
- Prices agreed in advance
What we'll do for you
Full preparation or review of a construction and installation works contract, including the attachments that matter on site: pricing model, timetable, change form and handover record.
Select an item to see the details.
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Initial consultation
We discuss the type of construction, your position in the chain (developer, main contractor or subcontractor) and the project's main risks.
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Price, budget and payment arrangements
We establish whether the price is fixed or based on unit rates and actual quantities, and what happens if quantities differ. For budget-based pricing, the Commercial Code distinguishes whether the budget was guaranteed and complete, and this distinction drives most price disputes. We also align advances, invoicing milestones and retention with a clear release trigger, or a bank guarantee in place of retained funds.
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Variations and change-order process
Who may instruct a change, in what form, by when and with what effect on price and timing. This includes a change-order form and a rule that unapproved additional work does not create a right to extra payment.
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Time, programme and cooperation
Milestones, extensions for obstacles on the client's side and consequences of failing to provide cooperation, including the site, documents, decisions or approvals.
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Acceptance, defects and warranty
The acceptance procedure, a record of reservations and outstanding work, rectification deadlines, warranty period and complaint procedure.
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Penalties, subcontracting and termination
Contractual penalties and their relationship to damages, insurance, subcontractor rules and settlement of work in progress on withdrawal.
Deliverablea signed construction works contract with attachments: pricing model, timetable, change-order form and handover record
How it works
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- Consultationday 0
We establish the type of work, your position in the supply chain and your greatest risk: price, time or acceptance.
- Drafting or review
We prepare a tailored agreement with attachments or review the other party's draft and colour-mark risky and unacceptable provisions.
- Agreeing the termsat your pace
We incorporate comments, negotiate disputed points, most often retention, penalties and warranty scope, and prepare the final version.
- Signing and construction
You receive a clean copy ready for signing and a brief overview of what to record in the diary and reports during construction. On request, we remain available during performance.
No-obligation enquiry
Ready to start?
Send us an enquiry. We reply within 24 hours with a price confirmation and next steps. The first 30-minute consultation is free and commits you to nothing.
- 1Send your enquiry via this form
- 2Within 24 h you get a price confirmation and plan
- 3We start work only after your approval
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What clients ask
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Fixed price or bill-of-quantities pricing?
A fixed price gives the client budget certainty and passes the risk of deviations to the contractor, who usually prices it in. Unit rates based on actual quantities are more precise, but the final amount is known only at completion. For a budget-based price, whether the budget was designated guaranteed and complete is crucial to whether the price can be exceeded at all. We choose the model according to the maturity of the project documents and which side you are on.
Who pays for additional work?
The party that approved it, with proof. The most expensive construction disputes arise from work verbally approved on site but never recorded in a written variation. We therefore name the persons authorised to approve changes, prescribe the change-order form and response period, and expressly state that no additional payment is due without approval. For contractors, we also establish how to initiate a change so the client cannot simply ignore it.
When is the work accepted if the client refuses to sign the record?
This is precisely why payment must not depend solely on a signed record without a further safeguard. Otherwise, refusing to sign becomes a means of postponing the entire payment. We define who convenes acceptance and how, when the client must attend, what happens if it does not, and that minor defects and incomplete items not preventing use are not grounds for refusal: they are listed with a rectification deadline. Under the Slovak Commercial Code, the subject of the work must be inspected as soon as practicable after handover. In a particular dispute concerning agricultural work, the Regional Court in Banská Bystrica linked this duty to handover of the entire work; the Supreme Court of the Slovak Republic rejected the appeal on points of law (5Obdo/5/2024). This does not generally exclude inspection of parts of the work. We determine the effects of partial handover according to the contract and the nature of the performance.
Why keep a construction or installation diary when we have a contract?
The contract says what should have happened. The diary records what actually happened: when the site was handed over, cooperation was missing, weather caused obstacles or a hidden obstruction appeared. In an extension-of-time or variation dispute, it is usually your strongest evidence. We therefore define who keeps it, how entries are made and when the other party must respond, so silence does not work against you.
Contractual penalty or damages?
They are different and cannot be left to chance. A contractual penalty is paid at the agreed rate regardless of actual loss. Under the commercial regime, unless otherwise agreed, the creditor has no additional right to damages for loss covered by the penalty. We therefore expressly address whether damages exceeding the penalty can be claimed and whether overall liability is capped. Otherwise, the penalty may become a limit you did not know existed.
Do construction works contracts differ in Czechia and Slovakia?
Yes, at a fundamental level. In Slovakia, works contracts between businesses are governed by the Commercial Code (§ 536 et seq.), while Czechia has a unified works contract regime in the Civil Code (§ 2586 et seq.), without separate civil and commercial regimes. Differences arise particularly in budget-based pricing, acceptance and defects. If you build on both sides of the border, we align both versions so they have the same meaning.
Legal Q&A
Common questions on this topic
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How do defect liability and warranties work under a construction contract?
A construction contract between businesses is governed by the Commercial Code. The contractor is liable for defects present at handover. The employer must notify defects without undue delay after discovering them or when they should have been discovered, and within five years of handover for buildings. If a quality warranty is agreed, the warranty period replaces this period. Late notification does not, however, automatically extinguish the rights: the court considers the contractor’s objection, and the Act provides an exception where the contractor knew the cause of the defect.
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Can a contractor charge more than the budget for additional works?
It depends on how the price is agreed. If it is fixed or set by a budget, more demanding work does not itself change the price. If the contract states that the budget does not guarantee completeness, the contractor may seek a reasonable increase for unforeseeable activities, but must notify them without undue delay or lose the claim. An increase exceeding 10 % allows the employer to withdraw from the contract.
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Why are handover and a handover record important on a building project?
Handover is important for performance of the works and generally also for the entitlement to payment. The transfer of ownership and risk of damage, however, depends on the contract and the regime under § 542 and § 554 of the Commercial Code; the employer may already own the works during construction. A warranty period is relevant if the contractor has assumed a quality warranty. At either party’s request, a written handover record must be made, recording identified defects and reservations.
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Further reading
Construction is no longer an unregulated trade: what a building company needs today
Since 1 April 2025, constructing buildings requires a trade authorisation subject to professional qualifications. Companies holding the former unregulated construction trade have until 31 March 2029; companies established after 1 April 2025 have no transition period.
Read more →
The construction site diary as evidence: missing entries are hard to prove years later
In a dispute over delay or defects, the site diary is often the only contemporaneous record. Construction Act No. 25/2025 Coll. specifies who keeps it and who may make entries; its evidential value depends on consistent records and the contract.
Read more →
Work statements, interim invoices and retention: construction payments depend on the contract
When a contractor gets paid depends on the contract’s billing arrangements: statements of completed work, approval and retention. Set them up so payments continue throughout construction and the first disagreement does not stop cash flow.
Read more →