Master-certified plumbing and HVAC company for bathroom renovations, sanitary installation and heating technology including heat pumps in the Hanover region.
Cete Haustechnik - Inh. Sozdar Cete
Seelze (Seelze-Letter)New on Amplifa
About Cete Haustechnik
Cete Haustechnik is a plumbing and heating company (master-certified plumbing and HVAC business) based at Lönsstraße 27 in Seelze-Letter near Hanover. Owner Sozdar Cete is a master plumber and heating engineer and has been active in the trades since 2017; the business has been registered in the trade register of the Hanover Chamber of Crafts since 5 May 2026 (company number 0339484). The service portfolio covers bathroom renovation from planning through to final installation, sanitary and drinking water installation in accordance with DIN 1988 and DIN EN 806, burst pipe and water damage work, plumbing (roofer) work as well as heating modernization, heat pump installation, heating maintenance, gas heating work in accordance with TRGI and underfloor heating. Systems from Vaillant, Bosch, Viessmann, Geberit and other manufacturers are installed; piping is executed in copper, stainless steel, composite pipe or galvanized steel. Customers are private households, landlords and property management companies as well as smaller commercial businesses in the Hanover region.
- Site
- Seelze
- Processes
- Burst pipes & water damage (leak detection, moisture measurement, thermography, repair/partial, Plumbing & small repairs (fittings, cisterns, drains, valves), Heating modernization (heating load calculation, hydraulic balancing, pump replacement, radiator, Heat pump (air-to-water heat pump planning and installation, noise protection in accordance with TA, Heating maintenance (burner cleaning, flue gas and combustion measurement, report), Gas heating (condensing boiler replacement/repair, gas pipe installation, tightness testing in, Bathroom renovation, Sanitary installation
- Materials
- Copper, Stainless steel, Composite pipe, Galvanized steel (existing pipes), Cast iron pipes (drainage), Galvanized steel, Cast iron pipes
- Certificates
- Master craftsman certificate in the plumber and heating engineer trade, Master craftsman certificate in the plumber and heating engineer trade (Chamber
- Founded
- 2026
- Industries
- Private households (single/two-family houses, apartments), Landlords and property management companies, Smaller commercial businesses
- 01
Consultation and free on-site appointment
- 02
Measurements, planning and heating load calculation
- 03
Written quotation with fixed line items
- 04
Installation and execution including coordination of other trades
- 05
Acceptance, documentation and instruction
Materials & Piping
Copper
Standard material for drinking water and heating pipes; mixed installations with stainless steel are checked in advance.
Stainless steel
Pipe material for drinking water installation, checked for permissibility in flow direction in existing systems.
Composite pipe
Flexible piping system for water and heating pipes, among other things in wall-mounted (pre-wall) installations.
Galvanized steel
Primarily existing material in riser pipes of old buildings, which is replaced riser by riser.
Cast iron pipes
Drainage pipes in existing buildings, whose renewal and repair are part of the service profile.
Location
Seelze
DEHead office and workshop (Letter district)
- Materials
- Copper, stainless steel, composite pipe, galvanized steel, cast iron pipes
Inside the production
Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Assembly | – | – | – | 2-3 weeks construction time | – |
| Assembly | – | – | – | – | Copper, Stainless steel, Composite pipe, Galvanized steel |
| Assembly | – | – | – | – | – |
| Burst pipes & water damage (leak detection, moisture measurement, thermography, repair/partialTesting | – | – | – | – | – |
| Plumbing & small repairs (fittings, cisterns, drains, valves)Assembly | – | – | – | – | – |
| Heating modernization (heating load calculation, hydraulic balancing, pump replacement, radiatorAssembly | – | – | – | – | – |
| Heat pump (air-to-water heat pump planning and installation, noise protection in accordance with TAAssembly | – | – | – | – | – |
| Heating maintenance (burner cleaning, flue gas and combustion measurement, report)Testing | – | – | – | – | – |
| Gas heating (condensing boiler replacement/repair, gas pipe installation, tightness testing inAssembly | – | – | – | – | – |
| Assembly | – | – | – | – | – |
| Engineering | – | – | – | – | – |
Additional services
Qualifications & Quality
Work on gas and drinking water systems is carried out by a master plumber and heating engineer registered in the trade register (master examination on 22 April 2026, Hanover Chamber of Crafts). Drinking water installations are executed in accordance with DIN 1988 and DIN EN 806; pressure testing and flushing are documented in writing.
| Evidence | Seelze |
|---|---|
| Master craftsman certificate in the plumber and heating engineer trade (Chamber |
History
- 2017
Sozdar Cete enters the plumber and heating engineer trade
- 2026
Master examination passed on 22 April 2026 before the Hanover Chamber of Crafts; business registered in the trade register on 5 May 2026 (company number 0339484)