How to Choose a General Contractorfor Your House in 2025?

Why choosing a construction crew is harder than it seems

Choosing a general contractor is a decision that carries more weight than choosing a plot of land. A bad plot can sometimes be fixed — with a good design, good insulation, a good landscape architect. A bad contractor is fixed very rarely, and when it happens, it costs months of delays, a second budget, and a lawsuit nobody wants to run.

The problem is that at the contract-signing stage, almost every construction company looks equally good. The same set of project photos, the same assurances about timeliness, the same “comprehensive, no hidden costs” pitch. The difference only shows up after the ground is broken — when the investor discovers that the site manager is running four other builds at the same time, that the materials in the estimate are a different class than the ones delivered on site, or that the company signed the contract with 5,000 PLN in registered capital and will vanish the moment something goes wrong.

This article is a practical checklist — not theory, just concrete questions, documents to check, and signals that should set off a red flag before you sign anything. We're writing it from the perspective of a company that has seen hundreds of these decisions — both the ones that worked out and the ones that ended with a call to a lawyer.

The general contracting market in Poland is extremely fragmented. Alongside large, established companies, there are hundreds of sole proprietorships that call themselves a “general contractor” in the ad, but in practice are one foreman with a phone full of subcontractors' numbers. There's no certification, no professional license, and no nationwide mandatory liability insurance that would weed out companies without experience. Practically anyone can enter this market.

Checklist: what to check before you sign the contract

This is a hard minimum list. If a company can't answer any of these points in a concrete, documented way — that in itself is a result.

• 1.

  CEIDG/KRS registration (Poland's business and court registries) and company history. Check the registration date. A company founded eight months ago under a different name, despite claiming it has ‘been operating for 15 years,’ is a signal that someone closed a previous entity with debts and opened a new one.

• 2.

  Certificate of no arrears with ZUS and the Tax Office (US). A company with tax arrears can have its bank account seized at any moment — including your deposit.

• 3.

  Construction liability (OC) insurance policy — with a current validity date and a coverage amount adequate to the value of your investment, not the minimum required.

• 4.

  References you can actually call, not just photos on a website. Ask for the phone number of at least two clients from the last 12 months and call them.

• 5.

  A “live” project — an ongoing build you can visit. A paper portfolio doesn't show the mess on site, the state of health-and-safety practices, or whether the site manager even shows up.

• 6.

  Team composition and employment status — whether the site manager is a company employee or a freelancer handling five sites at once.

• 7.

  A cost estimate broken down into materials and labor, with specific brands and material classes — not vague terms like “standard finishing materials.”

• 8.

  A schedule of works tied to payments linked to payment stages — you pay for a completed stage, not upfront for the entire scope.

• 9.

  A draft contract available for review before signing, with time to consult a lawyer — not ‘sign today, because the price is only good until tomorrow.’

• 10.

  The scope of the warranty and the claims procedure spelled out directly in the contract, not deferred to ‘general terms available upon request.’

Red flags — signs it's worth walking away

• A price clearly below market. If three contractors quote a house at PLN 1.4–1.6 million and a fourth quotes PLN 950,000, the difference doesn't come from ‘better organization’ — it comes from cheaper materials, undeclared subcontractors, or a plan to inflate the budget with annexes during construction.
• Pressure for a quick decision and a large deposit. Demanding 30–40% of the contract value before work begins, with no link to a stage of works, is the classic pattern of companies financing their previous build with money from the next one.
• No written cost estimate at the offer stage. Verbal assurances of ‘we'll stay within budget’ mean nothing when it comes time to settle up.
• Reluctance to show an ongoing build. A company that doesn't want you to see a current project usually has something to hide — a mess on site, delays, or a conflict with another client.
• Turnover of site managers during the project. Changing the person in charge halfway through a project almost always means losing control over the schedule and quality.
• A contract written exclusively in the contractor's favor — with no clearly defined penalties for delays, but an extensive list of circumstances releasing the company from liability.
• No clarity on who actually does the work. A general contractor who subcontracts 100% of the work to anonymous crews without subcontractor agreements shifts onto you a risk you don't even know exists.

Questions you need to ask at the meeting

A good construction company will answer these questions specifically, with numbers, and without hesitation. If the answers are evasive or dismissive — that's information in itself.

• How many builds are you running in parallel, and how many of them does the same site manager supervise?
• Who will physically carry out each stage — your own team or subcontractors, and under what agreements?
• What does the payment schedule look like, and what happens if a stage is delayed through your fault?
• What contractual penalties apply for missing a deadline, and are they realistically enforceable or merely symbolic?
• What exactly does the warranty cover, and what does the process of reporting a defect after handover look like?
• Can I talk to a client whose house you handed over in the last three months?
• What happens to my investment if your company ceases operations during construction?
• What does the process for design changes during construction look like, and how are they priced?

The last question matters more than it seems — it's exactly these changes during execution that cause budgets to blow out in the premium segment, where finishing standards and custom solutions often change midway through the build.

How Sigvin approaches choosing a general contractor

We know we're standing on the same side of the checklist you just read — and that's fine. In our view, an investor who asks us all of this themselves is a better partner than one who signs the contract without any questions.

That's why, before we sit down to the cost estimate, we show current projects — not photos from a brochure, but builds you can actually visit. The estimate we prepare breaks materials down into specific brands and classes, not general categories, and we tie the payment schedule to a stage of work actually completed, not to a calendar. The site manager assigned to your project supervises a limited number of builds at the same time — because we know that divided attention is the most common cause of delays and execution errors in this industry.

Build with Sigvin — free quote, no obligations

If you're at the stage of comparing contractors and want to confront your project with a concrete cost estimate rather than a vague ‘ballpark’ quote — set up a free consultation with us. We'll go through your project together, tell you directly where we see budget and schedule risks, and prepare a quote you can compare point by point with offers from other companies. No pressure, no obligations — just concrete numbers you can base your decision on.