Find a construction company: how to make the right choice

Which provider suits your project?

"Construction company" is an elastic term. Anyone searching for a "house-building company nearby" comes across three quite different types of provider. A classic construction company carries out the building work itself – predominantly solid, brick by brick, and often as a general contractor that brings all trades together and offers you one point of contact plus a fixed price. A prefab house manufacturer prefabricates walls, ceilings and roof elements in the factory and assembles the house on the building site within a few days – usually turnkey, with a short construction time and an easily calculable budget. An architect, in turn, designs your house individually and supervises the executing firms without building themselves.

For builders who value a plannable budget and short construction times, the turnkey prefab house provider is often the most uncomplicated route. Anyone seeking the greatest possible design freedom and allowing for time is well advised with an architect and individual awarding. The construction company as a general contractor sits in between: more individual than the manufacturer catalogue, but with one point of contact instead of many individual firms.

Checklist: how to recognise a reputable building firm

Before you commit to a building firm, go through the following points step by step. They protect you from disreputable providers and costly surprises:

• View reference properties and speak with former builders.
• Check the commercial register entry, creditworthiness and association memberships.
• Request and match a detailed construction and services description.
• Obtain at least 3 to 5 comparable offers.
• Set a binding completion date with a contractual penalty.
• Align the payment plan with construction progress, no high advance-payment shares.
• Record the warranty and completion guarantee in writing.
• Have the construction contract checked neutrally before signing.

Comparing offers correctly in 2026: what matters

For a turnkey house, the pure construction costs in 2026 range at around 2,400 to 3,400 euros per square metre, depending on the construction method and fittings. A solid house from a general contractor tends to be somewhat more expensive and takes longer than a prefab house, but in return allows more leeway in the construction type. In the cost comparison, however, it is not the eye-catching final price that counts, but the services description item by item: what is included, what counts as a special request, which incidental costs are missing? The consumer advice centres recommend obtaining three to five comparable offers – only this range makes the regional price level visible. Use our cost calculator to realistically assess your budget in advance.

Before signing: avoid these contract pitfalls

The construction contract largely determines your cost risk. Consumers are under the special protection of the construction contract under § 650a of the German Civil Code (BGB). The most common pitfalls include an incomplete construction and services description, hidden supplementary claims, unrealistic construction times without a contractual penalty, excessive instalment payments without actual construction progress, and missing provisions on warranty and completion guarantee. Have every contract checked neutrally before signing. The consumer advice centre (Verbraucherzentrale), the Association of Private Builders (Verband Privater Bauherren, VPB) and specialised construction law lawyers offer checked contract reviews for this. An independent construction supervisor also monitors the quality at the key construction phases.