Germany — residential and business sites

TBG Telefon-Bau

Telephone line installation, in-building cabling and fault clearing. Planned before we drill, measured before we leave.

  • Own technicians
  • Home & business
  • Service app included

What you can book

Four things customers ask us for by name. Scope and cost are confirmed in writing before a technician is scheduled.

Most requested

New telephone line installation

From the house entry point to the socket in the room you actually use.

  • Site check and cable route agreed
  • Connection point and socket set
  • Line test with measured values
  • Signed handover protocol

In-building cabling and extra sockets

Additional outlets, riser cabling and tidy routing through existing ducts where possible.

  • Duct, skirting or surface routing
  • Labelled sockets and distributor
  • Patch and distributor tidy-up
  • Drill points agreed with you first

Fault clearing and maintenance

Crackling, dead line, line that drops: we measure the in-building section and find where it fails.

  • Attenuation and continuity measurement
  • Section-by-section fault location
  • Repair or replacement of the bad run
  • Written result you can forward

Business site package

Multi-line offices, branch fit-outs and moves, scheduled around your opening hours.

  • Floor-by-floor cabling plan
  • Out-of-hours installation windows
  • Port and socket documentation
  • Named contact for the whole job

Scope is set after a site check. We do not quote on the phone without seeing the route.

How we work

Our own technicians

The person who surveys the route is from the same team that installs it. No handover to an unknown subcontractor between the quote and the appointment.

Route agreed before drilling

We walk the run with you, mark the drill points and the socket position, then start. Nothing goes through a wall you did not approve.

Measured handover

Every line is tested and the values go into a handover protocol you keep — useful if you ever have to argue a fault with your provider.

Service app for your jobs

Book appointments, follow the technician's visit status, file and track service requests, and open your invoices and contracts in one place.

Occupied flats and offices

Dust sheets down, cores vacuumed, furniture back where it was. You should not be able to tell we were there apart from the new socket.

Appointment windows

You get a window and a notification when the technician is on the way, instead of a whole day blocked out waiting.

From enquiry to dial tone

  1. Send the enquiry

    Tell us the address type — flat, house, office — and what is missing: no line, a bad line, or a socket in the wrong room.

  2. Site check

    Simple jobs we clarify from photos of the house entry point and the room. Anything with a riser, a courtyard or multiple floors gets a technician on site.

  3. Fixed scope and appointment

    You receive the work scope, the materials and the cost in writing, with an installation window. Nothing is ordered before you confirm.

  4. Installation and handover

    Cable laid, socket set, line measured, protocol signed. The job, the documents and the invoice stay visible in the service app.

What customers say

★★★★★
Line had been crackling for weeks. The technician measured the run from the basement up and found a damaged section in the riser, replaced it the same visit and left the readings on paper.
Martina
★★★★★
We moved the office to the first floor. They came in on a Saturday morning, cabled all eight workstations and labelled every port, so our IT person knew exactly what went where on Monday.
Kai
★★★★☆
Old flat, no empty ducts. They showed me where they would run the skirting channel before drilling anything and it looks tidy. The appointment window held.
Sabine

Questions we get before the first visit

I rent — do I need permission from the landlord?

For anything that touches the building fabric outside your flat, such as the riser or a wall core, yes. We tell you exactly which drill points and which runs need approval, so you can ask once instead of three times.

Can you use the cabling that is already in the building?

Often, yes. We measure the existing run first. If it carries the line cleanly we reuse it and you pay for less material; if it fails the measurement we show you the reading and the alternative route.

Do I have to be there during the installation?

Someone with access to the rooms and the distributor needs to be present at the start and at handover, because the socket position and the drill points are confirmed in person and the protocol is signed at the end.

Do you also handle my contract with the telephone provider?

No. We build and maintain the physical line and the cabling inside the building. Your contract, number and tariff stay with your provider — our measurement protocol is what you send them if they dispute a fault.

New build or renovation — when should we involve you?

Before the walls close. Planning the ducts and the distributor position during the shell phase costs almost nothing; cutting them in afterwards is the expensive version.

Tell us what needs doing

Describe the site and the problem. We come back with questions or a proposed scope — no obligation.

  • A technician reads the enquiry, not a call centre script.
  • We reply with the next step: photos needed, or a site check.
  • Cost and scope are confirmed in writing before anyone is scheduled.