Construction companies from Schleswig-Holstein

Hello forum,
who can give good advice on reasonable construction companies in southern Schleswig-Holstein? A city villa of 140-150 sqm is to be built in the district of Pinneberg using solid construction.
There is a plethora of providers, but a direct comparison is really difficult. In the end, you always know more than before.

The following aspects play a role here
- Price/performance ratio (also after sample selection)
- Construction time (from signing to handover of keys)
- Construction quality
- Good planning phase, construction phase and warranty phase
- Possibly own trades
- Possibly use of own services

I see the following companies
- Team Massivhaus (builds approx. 800 houses/year)
- Ö-Haus
- Kagebau (builds approx. 150 houses/year)
- ECO Haus (builds approx. 150 houses/year)
- Kraft&Pahlke
- Town & Country
- Stollhaus
- Virtus Bau
- Hauscompagnie
- Helma
- Viebrockhaus (builds approx. 1100 houses/year)
- KSW Massivhaus (approx. 50 houses/year)
- Generalbau Peters
- KS Bau Tornesch
- PE Massivhaus
- Nissen Massivhaus (approx. 50 houses/year)

who can give good advice on reasonable construction companies in southern Schleswig-Holstein?

Exactly that: to choose those from southern Schleswig-Holstein. Big names with regional offices or partners remain big names, behind 150 houses per year there can quite well be a successful medium-sized company, but with a significantly higher output it is probably no longer owner-managed. The closer the reference homeowners are to each other, the more likely it is that the good reputation of a company has spread.

Which own services/trades are planned?

Some of the mentioned companies do not let you do/commission anything yourself, so they might be of no interest to you.

Addendum: Personally, I also think Baumeister-Haus as a concept is not bad, a nationwide network of regional construction companies that use synergy effects, with luck even to the advantage of the builder
There is surely also a partner in southern Hedwig-Holzbein.

In general: visit BU, look at references and samples, compare construction service descriptions and ask, ask, ask!

Team, our children helped build: works, price-performance ratio very good, punctuality, you can't be too picky. ECO, friends chose it, everything was good. The others: no experience here.

We also built in the district of Pinneberg and had looked at TeamMassiv, Viebrockhaus, and Kagebau and requested quotes. Kage then convinced us. The construction went very smoothly and we are still very satisfied with our house!

We have also been toying with the idea of building a house for quite some time. So far, Viebrockhaus and Ecohaus have appealed to us the most. Not only because of the beautiful glossy catalogs but also because of the statements of the homeowners we have met in recent months.