Hiring a Renovation Contractor in Poland — What to Check

Finding a competent, honest renovation contractor in Poland takes more time than most owners expect — and the cost of choosing the wrong one is measurable in both money and stress. The construction market in Poland has no single centralised licensing register that is publicly searchable, which means due diligence falls entirely on the client. This article covers the verification steps that experienced owners and property managers routinely use.

Legal Registration — The Minimum Threshold

Any business operating legally in Poland should be registered in one of two systems: KRS (Krajowy Rejestr Sądowy) for limited companies and partnerships, or CEIDG (Centralna Ewidencja i Informacja o Działalności Gospodarczej) for sole traders. Both registers are publicly searchable at no cost:

• rejestr.io — aggregates KRS and CEIDG data, searchable by NIP or company name
• biznes.gov.pl — official government firm register

Check that the contractor's NIP (tax identification number) appears on the VAT whitelist (Biała Lista Podatników VAT) at the MF portal. Paying to a bank account not listed on the whitelist can expose the client to joint VAT liability under Polish tax law — a meaningful financial risk for higher-value contracts.

Building Licences (Uprawnienia Budowlane)

In Poland, the legal right to design or supervise construction — but not necessarily to do manual building work — is controlled by uprawnienia budowlane, issued by regional chambers of engineers (PIIB — Polska Izba Inżynierów Budownictwa). The PIIB register of active licence holders is publicly searchable at piib.org.pl.

For structural work requiring a building permit, you need: a licensed designer (projektant) to prepare the design, and a licensed site supervisor (kierownik budowy) to supervise execution. The general contractor does not need their own licence — but they must employ or subcontract someone who does. Confirming that a named, verifiable person with an active PIIB licence number is assigned to your project is non-negotiable for permit-required work.

What a Good Contract Covers

Verbal agreements carry no practical enforceability in Polish courts for construction disputes. A written contract (umowa o roboty budowlane or umowa o dzieło, depending on scope) should specify at minimum:

1. Scope of work — referenced to a detailed specification (przedmiar robót), not described in general terms
2. Start and completion dates — with provisions for defined, limited circumstances under which extensions are permissible
3. Payment schedule — tied to completion of measurable milestones, not calendar dates alone
4. Material specification — specifying product categories and performance standards, or named products
5. Warranty terms — Polish law provides a statutory implied warranty (rękojmia) of 5 years for construction defects under the Civil Code, but contracts sometimes attempt to limit this
6. Penalty clauses — for delay on the contractor's side (kary umowne za opóźnienie)
7. Dispute resolution — mediation clause, choice of court jurisdiction

Avoid contracts that make the final payment unconditional or tie it only to calendar dates. Payment should be released only after a documented handover inspection (protokół odbioru), signed by both parties.

Payment Structure — Avoiding the Most Common Traps

In Poland, a large upfront payment — sometimes called a "zaliczka" or advance — is common practice but carries risk. Legitimate contractors typically request: 20–30% upfront (covering material procurement), milestone payments of 30–40% at defined stages, and a final 10–20% on completion and sign-off.

Contractors asking for 50–70% upfront before starting work are a red flag, particularly if the entity has limited verifiable history. Several documented cases of advance fraud in the Polish renovation market involve newly registered companies with no reference history collecting large advances and then dissolving.

Red flags to recognise

• Reluctance to provide a written contract
• Request for cash payment only (no bank transfer option)
• No OC insurance, or certificate that has lapsed
• References that cannot be independently visited or verified
• Prices significantly below all other quotes for identical scope
• Pressure to start before the contract is signed

Dispute Resolution Options

If a dispute arises during or after a renovation, options under Polish law include: direct negotiation, mediation through a registered mediator (mediatora wpisanego na listę), arbitration through the Court of Arbitration at the Polish Chamber of Commerce, or civil litigation through the district or regional court depending on the value of the claim. For claims up to 20,000 PLN, the case is heard by the Sąd Rejonowy; above that, by the Sąd Okręgowy.

Maintaining a thorough paper trail throughout the renovation — signed delivery notes, written change orders, photographic documentation of all work before walls are closed — is the single most effective preparation for any future dispute.

Questions to Ask Before Signing

The answers to these questions, gathered across multiple competing contractors, reveal meaningful differences in professionalism and approach:

• Who specifically will supervise work on-site each day — a named individual, not just the company name?
• Which subcontractors will be used, and can you review their credentials?
• What is the procedure if concealed structural damage is found once walls are opened?
• How are material cost overruns handled — and what documentation is provided?
• Can you provide a materials schedule (harmonogram materiałów) alongside the construction schedule?

A contractor who answers these questions with specifics — names, document numbers, procedures — is operating at a different level from one who provides only vague assurances.