How Long Should A Gas Boiler Service Take? October 31, 2025 A gas boiler service is one of the most effective ways to ensure your heating system runs safely and efficiently throughout the year. Many homeowners book annual services without knowing what’s involved or how long it should take. Understanding the typical duration and what engineers check during a visit can help you plan ahead and make the most of your appointment. How long does boiler servicing take? A standard gas boiler service usually takes between 45 minutes and 1 hour, depending on the boiler type, age, and condition. Engineers follow a structured process to make sure your system is operating safely and efficiently. During the service, your engineer will: Inspect internal components, including the burner, heat exchanger, and seals Check the flue and ventilation for safe exhaust of gases Clean essential parts to remove dirt or debris buildup Test the gas pressure and flow rate Check for leaks, corrosion, and general wear Verify that the system meets current safety and efficiency standards If your boiler has not been serviced in several years or shows signs of problems such as noise, leaks, or poor performance, the service may take slightly longer to complete. Factors That Can Affect the Duration Several elements influence how long your gas boiler service might take: Boiler Type and Model Combi boilers are often quicker to service because they have fewer components than system or regular boilers. Older models may require more attention if parts are worn or outdated. Accessibility and Installation Location Boilers installed in tight or hard-to-reach areas, such as lofts or cupboards, can increase service time. Clear access helps engineers complete the job more efficiently. Service History If your boiler hasn’t been serviced regularly, there may be extra cleaning or parts to replace, adding to the overall time. Annual servicing keeps everything in better condition and makes future appointments quicker. Booking Your Annual Gas Boiler Service You don’t have to wait for winter to have your boiler checked. Many homeowners prefer to book in spring or summer when engineers have greater availability and you’re not relying heavily on your heating. Routine servicing keeps your home warm, reduces energy bills, and maintains compliance with warranty requirements. Reliable Boiler Service in Aberdeen and Stonehaven Westhill Boiler Services offers expert gas boiler servicing. Our heating engineers ensures every system is checked thoroughly for safety, reliability, and performance.Call us today on 01224548803 and keep your home heating running efficiently all year round.