GasJack's
Frequently Asked Questions
Welcome to our FAQ section, where we’ve answered our customers’ most common questions about boiler installations, heating systems, and our services. If you can’t find what you’re looking for, please contact us, and our friendly team will be happy to help.
Boiler Questions
If your boiler is over 10 years old, frequently breaking down, making unusual noises, has visible corrosion, or your energy bills are increasing despite similar usage, it may be time for a new boiler. Our Gas Safe registered engineers can assess your current system and advise whether repairs or replacement would be more cost-effective in the long run.
The ideal boiler depends on your property size, hot water demands, and existing system. Generally, combi boilers are excellent for smaller homes with limited space and 1-2 bathrooms. System boilers work well for properties with multiple bathrooms and higher hot water demands. Regular (conventional) boilers are suitable for homes with traditional heating systems. We’ll recommend the best option for your specific needs during our free consultation.
Most standard boiler replacements are completed within a day (6-8 hours). However, if you’re changing boiler types or relocating your boiler, the installation may take 1-2 days. We’ll provide a clear timeframe during your quote, and our engineers work efficiently to minimise disruption to your home.
As Worcester Bosch accredited installers, we primarily recommend their boilers for their exceptional reliability, efficiency, and performance. However, we also install other quality brands such as Vaillant, Baxi, and Ideal. We’ll discuss the options and help you choose the best boiler for your requirements and budget.
We recommend annual boiler servicing to maintain efficiency, ensure safety, and comply with warranty requirements. Regular servicing helps prevent breakdowns, extends your boiler’s lifespan, and keeps your heating system running efficiently. Most manufacturer warranties, including our 12-year warranty, require yearly servicing by a qualified engineer.
Our market-leading 12-year warranty covers all major components of your Worcester Bosch boiler against manufacturing defects and unexpected failures. This includes parts, labour, and call-out fees for any warranty-related repairs. A Gas Safe registered engineer must service your boiler annually to maintain this coverage. We’ll provide full warranty details with your installation.
Heating System Questions
Inefficient heating can result from various issues, including air in the system, sludge buildup, incorrectly sized radiators, poor insulation, or an ageing boiler. Our engineers can thoroughly assess the root cause and recommend appropriate solutions, from power flushing to system upgrades or replacement.
Power flushing is a deep cleaning process that uses high-pressure water to remove sludge, rust, and debris from your heating system. Signs that your system might need power flushing include cold spots on radiators, noisy operation, frequent bleeding requirements, or discoloured water when bleeding radiators. To protect your investment, we recommend power flushing before installing a new boiler.
Most standard boiler replacements are completed within a day (6-8 hours). However, if you’re changing boiler types or relocating your boiler, the installation may take 1-2 days. We’ll provide a clear timeframe during your quote, and our engineers work efficiently to minimise disruption to your home.
Improving energy efficiency can include installing a modern condensing boiler, adding smart controls, insulating pipes, balancing your radiators, installing thermostatic radiator valves (TRVs), power flushing your system, or considering renewable heating options. We can suggest tailored improvements to maximise your system’s efficiency during our assessment.
Yes, we install and configure a range of smart heating controls, including Hive, Nest, Honeywell, and Worcester Bosch’s smart thermostats. These systems allow you to control your heating remotely, create schedules, and learn your habits to optimise efficiency. Smart controls can reduce energy bills by up to 31% when used correctly.
Service & Pricing Questions
Boiler costs vary depending on the type, size, brand, and installation complexity. Typically, our installations range from £2,000 to £5,000, including parts, labour, system flushing, and our 12-year warranty. We provide detailed, transparent quotes following an assessment of your property and requirements, with no hidden costs or surprises.
Yes, we offer flexible finance plans to help spread the cost of your new boiler installation. Options include interest-free deals and low monthly payment plans. Our finance process is straightforward, with quick approval and no complex paperwork.
All our engineers are Gas Safe registered and fully qualified to work on heating and gas systems. Many are also Worcester Bosch accredited, having undergone additional specialised training. We regularly update our training to stay current with the latest technologies and regulations, ensuring the highest standards of workmanship and safety.
You can book our services in several ways:
- Call us on 01752 659458
- Email us at info@gasjack.co.uk
- Use our online booking form on the Contact page
- Request a boiler quote through our Boiler Quote page
After-Service Questions
After installation, we recommend:
- Maintaining water pressure (we’ll show you how)
- Bleeding radiators when necessary
- Scheduling annual services to maintain warranty and efficiency
- Keeping the area around your boiler clear
- Being alert to any unusual noises or changes in performance
We provide a complete handover after installation, explaining how to use your new system effectively and what maintenance you should perform.
A quality boiler that’s professionally installed and regularly serviced should last 10-15 years or more. Worcester Bosch boilers are particularly known for their longevity. Regular annual servicing is essential to maximise your boiler’s lifespan and maintain efficient operation.
If you smell gas:
- Open windows and doors for ventilation
- Turn off your gas at the meter if possible
- Don’t use electrical switches or naked flames
- Leave the property
- Call the National Gas Emergency Service immediately on 0800 111 999
- Contact us once the immediate danger has been addressed
If your boiler develops a fault during the warranty period, simply contact us. We’ll arrange for an engineer to diagnose and repair the issue as quickly as possible, with no call-out or repair charges for warranty-covered problems (subject to annual servicing having been maintained).
Yes, we install and configure a range of smart heating controls, including Hive, Nest, Honeywell, and Worcester Bosch’s smart thermostats. These systems allow you to control your heating remotely, create schedules, and learn your habits to optimise efficiency. Smart controls can reduce energy bills by up to 31% when used correctly.
Have a question we haven't answered?
If you can’t find the information you need, please contact our friendly team directly. We’re always happy to help with any queries about our services, boilers, or heating systems.
Phone: 01752 659458
Email: info@gasjack.co.uk
