
Boiler Replacements in Cheltenham
When your old boiler struggles to keep up, it’s time for an upgrade. The team at Alsto-Heat, your trusted local plumber based in Cheltenham and serving Gloucester and beyond, fits efficient new boilers that combine modern performance with dependable workmanship. Enjoy reliable heating, lower bills, and complete peace of mind every day of the year.
Bringing New Life to Homes with Expert Boiler Replacements
Our team of accredited plumbing and heating engineers carries out boiler replacements for domestic properties throughout Gloucester and all other locations within a 20-mile radius of Cheltenham. This can help deal with a unit constantly in need of boiler repairs, or one that is letting down your wider central heating installation through its inefficiency.
Choose Alsto-Heat and you can rest assured your installation will be handled with professionalism and attention to detail. As accredited installers of Worcester Bosch Group products, we offer clients peace of mind with guarantees ranging from 5 to 12 years on all boiler upgrades.


Types of Boilers:
Which is Right for Your Home?
Choosing the right boiler for your home depends on your household’s needs and its existing heating system. At Alsto-Heat, our plumbing and heating engineers guide Gloucester and Cheltenham clients through the available options to ensure they get the best solution for their property. This includes identifying the right type of boiler out of the following options:
- Combi Boilers – Ideal for smaller homes with limited space, combi boilers provide both heating and hot water on demand. They don’t require a hot water cylinder, making them an efficient, space-saving option.
- Regular Boilers – Also known as conventional boilers, these are best for larger homes with multiple bathrooms. They use a hot water cylinder and are compatible with older heating systems.
- System Boilers – A great option for medium-to-large homes, system boilers are similar to regular boilers but are more efficient. They don’t require a cold-water feed tank and can provide a constant supply of hot water.
When you’re looking for a upgrade and need advice on the best new boiler for your home, Alsto-Heat is here to help.
Boiler Replacements – The Process
Replacing a boiler is a detailed process that demands expertise. At Alsto-Heat, we follow a precise method to ensure your replacement boiler is installed safely and efficiently:
- Cut-off Gas & Water Supply – Before any work begins, we ensure the gas and water supplies are securely turned off to avoid any risks.
- Remove the Old Boiler – The existing boiler is safely disconnected and removed.
- Clean the Central Heating System – We flush your central heating system to remove sludge and debris, ensuring your new boiler operates efficiently.
- Install the New Boiler – Your new boiler is expertly fitted, whether you’ve chosen a combi, regular, or system model.
- Thorough System Testing – Once installed, we rigorously test the system to ensure it’s operating at peak performance.
- Register the New Boiler – As part of the installation, we register your boiler with the manufacturer, ensuring that your guarantee is fully validated.


Why Choose Alsto-Heat?
- Accredited installers of Worcester Bosch boilers, offering 5-12 year guarantees on all boiler replacements.
- Experienced, Gas Safe accredited engineers ensuring safe, compliant installations.
- Expertise in combi, regular, and system boilers to suit all household requirements.
- Serving Gloucester, Cheltenham, and surrounding areas within a 20-mile radius.
FAQs – Boiler Replacement
How do I know when my boiler needs replacing?
If your boiler breaks down frequently, makes unusual noises, or drives up your energy bills, it might be time for a replacement. A qualified plumber can inspect your system and advise on the best next step.
Do I have to stick with the same type of boiler?
Not necessarily. Your plumber will assess your home’s heating setup and suggest the most efficient type—whether that’s a combi, system, or regular boiler—to match your property and lifestyle.
How long does a boiler replacement take?
Most replacements are completed in one to two days, including full testing and certification. We work efficiently to get your home warm and running again as quickly as possible.

Getting in Touch With Alsto-Heat
Alsto-Heat is Cheltenham and Gloucesters’ go-to plumber. If you’re considering a boiler upgrade or replacing units that are no longer fit for purpose, contact our expert engineers on 01242 236774 (Cheltenham) or 01452 890338 (Gloucester).