Upgrade your gas boiler
Tell us the existing model and its approximate age. We assess the current setup and the scope of your planned upgrade.
GAS BOILERS & GAS INSTALLATION
Replacing your gas boiler? TK SHK handles replacement and new gas boiler installation in Berlin and Brandenburg, from the initial assessment to the agreed installation.

Existing connections, heating demand and hot water requirements all matter. We work with you to establish what your building needs.
Tell us the existing model and its approximate age. We assess the current setup and the scope of your planned upgrade.
Connections, flue arrangements and hot water provision must suit the new unit. We agree any necessary changes before installation.
Replacing a gas boiler is a good time to assess the whole heating system. We check the suitability of the new system and any changes needed for your building.

Gas pipes and connections need qualified professionals. We assess the scope of work on site.
Adapting or safely decommissioning existing gas connections following an assessment.
Assessing the current setup and planning any work required on the existing installation.
We clarify any necessary coordination with other parties as part of the specific project.
GAS PIPES & METERS
TK SHK installs, replaces and modifies gas pipework in Berlin and Brandenburg. We coordinate pipe routes, connections and the steps required for your project.
New gas pipes, extensions and replacements to suit your building, gas appliances and the agreed scope of work.
We handle the required gas-meter applications and coordination with the relevant network or metering operator. Their requirements and appointment confirmation remain decisive.
From a planned gas connection to changes to an existing installation, we clarify the documents, responsibilities and work needed for your specific project.
Renewing a gas boiler, replacing a combi boiler or installing a new individual apartment gas heating system: we coordinate equipment selection and installation with your existing heating and hot water supply. You can also enquire about several gas boilers as one project, for example in different apartments or across a housing portfolio. Please provide the manufacturer, model and hot water arrangement; for several systems, also state quantities, property addresses and any known differences.
We discuss installation conditions, connections and flue arrangements. Modernisation of the associated heat distribution can also be included. The suitability of the solution and the parties that need to be involved are clarified for the building. Equipment selection, removal, modifications and commissioning form the quotation scope. Different connections or access arrangements can affect the work required in each apartment. Property managers should provide contact persons and possible access times. We coordinate dates and work stages with you so each equipment replacement can be prepared with the occupants.
Work on gas pipes and extending gas connections can also be part of your project. Describe the planned equipment, existing connection points and desired alterations. We clarify the necessary pipework and coordination with other parties for the property.
INSPIRATION FOR YOUR PROJECT
AI-generated example images illustrate possible room and building settings typical of Berlin and Brandenburg. We plan the actual installation around your property.
TK SHK · NBB · FULL AUTHORISATION
TK SHK is listed with NBB Netzgesellschaft Berlin-Brandenburg mbH & Co. KG as an installation company with full authorisation. This authorises us to construct, modify and maintain gas installations within the NBB supply area.
Whether you need a new installation, a replacement gas boiler or an upgrade to existing gas installations, we combine professional workmanship with clear coordination and personal service.
The corresponding NBB installer ID is valid until 26 October 2029. Find us in the official NBB installer directory as TK – Sanitär Heizung Klima, 12305 Berlin.
Whether you have a gas boiler or a gas-fired heating system, describe your existing appliance and tell us whether you need installation, replacement, maintenance or repairs. TK SHK carries out gas boiler work and gas installations in Berlin and Brandenburg by personal arrangement.
TK SHK · BERLIN & BRANDENBURG
We service gas boilers in Berlin and Brandenburg. Please provide the manufacturer, model and date of the last service. We will agree the appropriate maintenance scope and appointment with you.
Enquire about your projectYou can also contact TK SHK about repairs. Describe the problem and provide the project location and postcode, as well as the manufacturer and model of any appliances. An error code visible from the outside or photos of the installation help with the initial discussion. We discuss feasibility, scope and dates personally.
Our expertise also includes maintenance and fault-finding. We assess individual service requests on a case-by-case basis.
TK SHK provides maintenance in Berlin and Brandenburg for private customers, property managers, owners’ associations, apartment buildings and businesses. We agree the systems, manufacturers, condition and maintenance needs in advance.
Heating: oil and gas heating, heat pumps and cascades, pellet boilers, solar thermal systems, central heating plants and hot water cylinders. Depending on the system, work includes cleaning, checks of burners, heat exchangers, pumps, controls and safety devices, measurements and a maintenance record.
Maintenance contracts for individual systems or property portfolios: we agree equipment lists, intervals, scope, appointments, access and records. Repairs, spare and wear parts and additional call-outs are expressly defined in the quotation. For apartment buildings and businesses we coordinate visits with management and occupants.
Gas pipework and water installations form part of the planning for new builds and major renovations. We clarify connections, routing and interfaces before installation.
We renew gas pipes throughout entire buildings and carry out complete gas installations and connections for apartment buildings and residential complexes in Berlin and Brandenburg. Pipe routing, sizing, internal distribution and work stages are coordinated for the building. We clarify the network connection and responsibilities with the relevant network operator.
We carry out the tests, commissioning and documentation required for the agreed installation work, according to the system, scope, technical rules and manufacturer requirements.
Depending on the work, we perform load and tightness tests and serviceability checks on existing gas pipes under DVGW-TRGI. Gas boiler commissioning includes the necessary connection, function and safety checks. Results and operator instruction are documented.
You receive the test and commissioning records for the work performed and operating instructions. We coordinate necessary approvals by network operators, chimney sweeps or other responsible bodies; their duties remain with them. Additional hygiene examinations or special tests are agreed for each project.
Good to know
The manufacturer, model, approximate age, building type and project location are helpful. After getting in touch, you can send photos of the system and rating plate by email.
This depends on your current equipment and the requirements of your building. The new gas boiler, connections and necessary changes together define the scope of work.
Yes. Mention both requirements in your enquiry and, if possible, add details of the existing system. We will agree which jobs can be carried out together based on the installation conditions and your desired scope.
For gas boiler replacement or maintenance, the manufacturer, model, photos of the existing system and your project location and postcode are helpful. Tell us whether you need replacement or scheduled maintenance. We agree the scope and date with you personally.
TK SHK handles projects in Berlin and Brandenburg. Our business is based in Berlin-Lichtenrade.
TK SHK · BERLIN & BRANDENBURG
Our master craftsman business is based at Barnetstraße 31a in Berlin-Lichtenrade. We carry out projects in Berlin and Brandenburg, agreeing the location and scope of work with you personally.
Thinking of changing your heating system? Find out about air-to-water heat pumps and radiator replacement as part of a heating upgrade.
The right solution starts with a conversation.
A new heating system, a more comfortable indoor climate or a new bathroom?
Tell us about your project.
Gas and installation in detail












Measuring and shut-off devices are among the details that make a system clear and accessible. Their position is considered together with pipeline routing, maintenance access, and system requirements. Which components are necessary in a specific project depends on the intended use and technical planning.


Based on 7 reviews
Seven Google reviews: six with text and one stars-only rating.
Review information as of: · Links open Google.
Six translated reviews and one stars-only rating
Heat pump installation
Translated from German
“I had TK SHK install a heat pump and I am really very satisfied. Everything went very well, from the initial consultation to completion. The work was carried out cleanly, punctually and very carefully. Questions were always addressed and everything was explained clearly. You can tell that they have expertise and experience. The heat pump works perfectly and I would hire TK SHK again at any time. Highly recommended!”
„Ich habe von TK SHK eine Wärmepumpe einbauen lassen und bin wirklich sehr zufrieden.
Von der ersten Beratung bis zur Fertigstellung hat alles super funktioniert. Die Arbeiten wurden sauber, pünktlich und sehr ordentlich ausgeführt.
Auf Fragen wurde immer eingegangen und alles verständlich erklärt. Man merkt, dass hier Fachwissen und Erfahrung vorhanden sind. Die Wärmepumpe läuft einwandfrei und ich würde TK SHK jederzeit wieder beauftragen. Klare Empfehlung!“
Original customer review on Google, in German
View the original on GoogleHeating replacement
Translated from German
“Excellent service, the heating systems were replaced quickly, and the price was exactly as agreed beforehand.”
„Bester Services, Heizungen wurden schnell gewechselt, Preis genauso wie vorher vereinbart.“
Original customer review on Google, in German
View the original on Googlegas boiler replacement
Translated from German
“I had my old gas boiler replaced with a new combi boiler and I am really happy. An appointment was arranged quickly and installation went smoothly. The old boiler was removed and the new one installed straight away. The heating and hot water work perfectly again, and everything was left clean. The price was also as discussed beforehand. I can definitely recommend them 👍”
„Habe meine alte Gastherme gegen eine neue Kombitherme austauschen lassen und bin echt zufrieden Termin wurde schnell gemacht und der Einbau hat ohne Probleme geklappt die alte Therme wurde ausgebaut und die neue direkt eingebaut Heizung und Warmwasser funktionieren wieder einwandfrei und alles wurde sauber hinterlassen Preis war auch wie vorher besprochen kann ich auf jeden Fall weiterempfehlen👍“
Original customer review on Google, in German
View the original on GoogleRating without text
View the original on GoogleTranslated from German
“Good work, no complaints”
„Gute Arbeit, kann mich nicht beklagen“
Original customer review on Google, in German
View the original on GoogleTranslated from German
“Good service”
„Guter Service“
Original customer review on Google, in German
View the original on Google„Ausgefallene Therme wurde schnell und zuverlässig repariert. Trotz vollem Auftragsbuch noch einen Termin an einem späten Freitag Abend bekommen. Kommunikation zu jeder Zeit schnell und zuverlässig!“
Original customer review on Google, in German
View the original on GoogleSource: Google · As of 27 October 2026 · Translations with the original German text; one rating without text.
We compare the Google reviews shown here with our own customer jobs to check whether they relate to services we actually provided.