Installation
Installing new equipment or replacing old — with all the paperwork included.
- Gas boiler installation / replacement
- Gas water heater installation / replacement
- Heating system construction
- Heating control installation and commissioning
Sales, installation, repair and servicing of gas heating equipment, gas works and heating system construction — reliably and professionally since 2015.
From installation and gas works to servicing, renovation and certification. We handle the design, approvals, inspections and paperwork — every job meets the requirements.
Installing new equipment or replacing old — with all the paperwork included.
Gas pipework and related works in line with current safety requirements.
A clean boiler burns less gas. Regular servicing keeps the appliance reliable, extends its life and helps cut your energy bills.
Bringing older installations back into order and into compliance.
Katlaservice OÜ has been in business since 2015, providing dependable heating solutions for homes and businesses alike. We are an official partner of the leading German manufacturer BOSCH — quality widely known in our market under the JUNKERS name.
From day one, gas heating equipment has been at the heart of what we do — selling, installing, repairing and servicing it. Over time we have extended our expertise to gas pipework and complete heating system construction, so that everything comes from one place.
Everything we do complies fully with Estonian law, and we hold every licence and certificate required. That gives you the confidence that your home or business heating system is in the right hands.
There are no shortcuts with gas and heating systems. Our work is backed by experience, quality and full compliance.
Our most important value. Every solution is safe today and years from now.
Trained engineers with years of experience who know exactly what they are doing.
Our work complies with Estonian law and we hold every required permit and certificate.
As an official partner we supply equipment and parts you can depend on for years.
Pick a free slot from the calendar and fill in the short form. We will send you an SMS confirmation within 2 working days.
We do not work on Saturdays and Sundays.
We sell, install and service gas heating equipment from leading manufacturers, using genuine spare parts.




If possible, switch the boiler off ahead of time so it has cooled down before we arrive — that way we can get started right away. Make sure the technician has clear access to every part of the heating system (boiler, flue, gas pipework), and remove anything from the work area that could get dirty or damaged during cleaning. If you have a pet, it is best to keep it in another room while we work.
A gas boiler should be serviced once a year, ideally before the heating season starts. Manufacturers usually tie the warranty to regular servicing, and housing associations often require it by contract. A clean boiler burns less gas, so a service typically pays for itself.
Cleaning the burner and heat exchanger, checking and if needed replacing electrodes, gas leak testing, checking water pressure and the expansion vessel, flue gas analysis and testing the controls. At the end you get a clear picture of the appliance condition.
The price depends on the make and model of the appliance and the work involved. We tell you the exact price before starting — call or book a time and briefly describe the situation, and we can give you an estimate straight away.
Write the error code down and try resetting the boiler once. If the fault comes back, do not carry on yourself — call us and give us the code and the make of the appliance. That way we can bring the right parts with us before we set off.
No. Construction, repair and maintenance of a gas installation may only be carried out by a specialist holding a certificate of competence. Work done without one is illegal, insurance may refuse to cover damage, and the appliance can become dangerous. We hold every permit required.
Did not find your answer? Call +372 58 24 24 24 — we are happy to help.
Ask for a free quote or advice — we reply quickly and find the right solution for your property.