Less German paperwork.
More time for the job.
BauWalker helps construction companies and tradespeople in Germany create documents, understand building rules and run their projects – in your language.
RechnungAngebotdocumentsmeetingsmeasurementsbuilding law
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Just say what you need
Not sure whether you need an Angebot, a Kostenvoranschlag or a Nachtrag?
You don't need to know.
«The client wants a rough idea of what the bathroom renovation will cost.»
Looks like you need a Kostenvoranschlag
A non-binding cost estimate for the client – without the commitment of an Angebot.
How big is the bathroom, and what's included: tiling, plumbing, electrics?
Prepare KostenvoranschlagType it or say it:
«The client wants a rough idea of what the bathroom renovation will cost.»
BauWalker suggests the right document, asks the questions it needs and prepares it.
Rechnung and Angebot
Documents without hours at the computer
Tell BauWalker what you did – by text or voice.
It helps you prepare:
- Rechnunginvoice for completed work
- Angebotbinding quote for the client
- Kostenvoranschlagnon-binding cost estimate
- Abschlagsrechnunginterim invoice for a stage
- Nachtragadditional work added to the contract
It checks the required details and prepares the document in German.
Your language
Work in your own language
German stays in the documents – not in your head.
Talk to BauWalker in English, German, Russian, Turkish, Polish or Romanian.
You explain the task in the language you're comfortable with – BauWalker helps prepare the German document.
«Create an invoice for painting walls, 85 m² at 18 euros.»
Rechnung
Wände streichen
85 m² × 18,00 €
Contracts and rules
Don't understand a letter, a contract or a rule? Just ask.
For example:
«The client wants to deduct 3% Skonto. Can they do that?»
BauWalker explains it in plain words, shows what it means for your project and helps you work out what to do next.
Help with understanding documents and building rules – not legal advice.
Measurement
Upload a plan – get the areas.
- 33
- rooms
- 1,038 m²
- of walls
- 439 m²
- of floor
BauWalker recognises rooms, wall and floor areas straight from the plan – PDF, DWG or DXF – and carries them into an Angebot or Aufmaß.
Calculation is possible according to WoFlV (Wohnflächenverordnung).
Measurement
Alexanderstraße 3-5, 10178 Berlin
Alexanderstraße 3-5 · WE3.pdf
WE3 · 9 rooms · 2 balconies
Walls: 26 · Floors: 11 · Wohnfläche: 117.63 m²
125.68 m² · net 117.63 m²
Meetings
Upload a recording of a meeting or a conversation.
BauWalker picks out:
- Key points
- Decisions
- Tasks
- Deadlines
For example:
Key point: The screed is delayed by 4 days.
Task: prepare the Nachtrag by Friday.
Documents per project
Stop digging through folders and chats
BauWalker helps you keep documents by project and find what you need fast.
RechnungenAngeboteVerträgePläneNachträgeProtokolle
Nassauische Str. 37A
6 documents
- Angebot Nr. 2026-017PDF · 12.09.2026
- Bauvertragsigned · 18.09.2026
- Grundriss UGplan · 05.10.2026
- Nachtrag 01draft · 06.10.2026
- Protokoll Baubesprechungrecording → text · 06.10.2026
- Rechnung Nr. 2026-041sent · 07.10.2026
Price
All of this – €15 a month
BauWalker
€15per month
- All core features
- Multiple languages
- Built for working in Germany
Price excludes VAT.
14 days free
Need access for your team? Compare the Team and Pro plans
Invoices from the chat as an e-invoice on request: XRechnung 3.0 according to EN 16931.
Developed in Germany.
The connection to BauWalker is encrypted with TLS (HTTPS).
- AI transparencyModels, data processing, limits and human oversight (page in German).
FAQ
Frequently asked questions
How is BauWalker different from a regular AI chat?
BauWalker is not just an AI chat but a working platform for construction businesses: every request runs in the context of your projects, documents and contracts. The platform remembers projects and decisions, is built around German construction law (VOB/B, BGB) and creates finished documents – minutes, Nachträge, invoices, payment plans. A regular chat gives you an answer, BauWalker gives you a work result.
Which documents can BauWalker prepare?
Rechnung, Angebot, Kostenvoranschlag, Abschlagsrechnung and Nachtrag. You describe the task in your own words – by text or voice – and BauWalker checks the required details and prepares the document in German.
Which language can I work in?
You can talk to BauWalker in Russian, German, English, Turkish, Polish or Romanian. BauWalker prepares the document in German.
How much does BauWalker cost?
€15 per month excl. VAT – with all core features and several languages. The first 14 days are free. Teams can choose the Team and Pro plans (see Pricing).
Does BauWalker replace a lawyer or tax advisor?
No. BauWalker helps you understand situations faster and prepare documents, but it does not replace a lawyer, tax advisor (Steuerberater) or other qualified professional. Please check results before using them.