
Gas Safe Registered
Boiler Installation
Raw Services are Gas Safe registered boiler installation specialists covering Littlehampton, Worthing, Chichester, Lancing and surrounding areas, fitting combi, system and regular boilers with honest pricing and expert guidance to keep your home heating running efficiently.

Expert Heating Solutions
Combi, System and Regular Boilers
Whether your current boiler is struggling or you're upgrading for better performance, choosing the right type of system and the right installer makes all the difference.
There are three types of domestic boiler:
1. Combi Boilers
Combi boilers are ideal for smaller homes. They heat water directly from the mains on demand, so there's no need for a separate hot water cylinder or cold water storage tank. Compact and efficient, a combi boiler can often fit neatly into a kitchen cupboard, freeing up valuable space elsewhere in your home.
2. Regular Boilers (also known as conventional, traditional or heat-only boilers)
Regular boilers are well suited to larger, busier homes with high hot water demand and multiple bathrooms. They work alongside a cold water storage tank in the loft and a separate hot water cylinder, making them a reliable choice where water pressure from the mains may be low.
3. System Boilers
System boilers are a great option for larger homes with multiple bathrooms, as they can supply enough hot water to several showers and taps simultaneously. Unlike a regular boiler, they don't require a cold water storage tank in the loft, but they do need space for a hot water cylinder, typically in an airing cupboard.
The most straightforward and cost-effective installation is a like-for-like swap, replacing your existing boiler with a new model of the same type, in the same location.
All Major Boiler Brands Covered
Our engineers are experienced across the UK's most popular boiler brands, including Worcester Bosch, Vaillant, Viessmann, Ideal, Baxi and Alpha, but don't worry, our Gas Safe engineers are qualified to install virtually any boiler brand on the market.
Comprehensive Service
What Your New Boiler Installation Includes
Every boiler installation carried out by Raw Services includes the following as standard:
- Pipework, flue and filter installation
- Wall fixings and brackets
- Sealing and pressure-testing pipework
- Full boiler installation and positioning
- Boiler configuration to manufacturer specification
- System testing and commissioning
- Emissions and combustion test
- System flushing to remove debris and protect components
- Heating controls set-up and handover
We'll also walk you through how to use your new boiler and controls before we leave, and provide all relevant documentation including your Gas Safe certificate.
Frequently Asked Questions
Boiler Services FAQ
How often should I get my boiler serviced?
To ensure your boiler is running safely and efficiently, we recommend an annual service by a Gas Safe registered engineer. Regular servicing can prevent unexpected breakdowns, prolong the life of your boiler, and is often required to keep your manufacturer's warranty valid.
What is a Landlord Gas Safety Certificate (CP12) and do I need one?
A Landlord Gas Safety Certificate, or CP12, is a legal requirement for anyone renting out a property with gas appliances. It documents a series of checks carried out by a Gas Safe engineer to ensure all gas appliances, pipes, and flues are safe for your tenants to use. This check must be completed every 12 months.
What are the signs that I might need a new boiler?
Common signs include your boiler frequently breaking down, your energy bills creeping up, the boiler making unusual noises (like gurgling or clunking), or if it's becoming difficult to find replacement parts. If your boiler is over 10-15 years old, a new, more efficient model could save you significant money in the long run.
What is a system conversion?
A system conversion involves changing the type of heating system you have, most commonly from an older conventional system (with a separate hot water tank) to a modern, high-efficiency combi boiler. This frees up space by removing the need for a tank and provides instant hot water on demand.
What is powerflushing and how does it benefit my heating system?
Powerflushing is a process that uses a high-velocity, low-pressure jet of water to clean the sludge, rust, and debris that builds up inside your central heating system over time. The benefits include more efficient radiators, faster heat-up times, reduced boiler noise, and a longer lifespan for the entire system.
Can you install smart heating controls like Hive or Nest?
Yes, absolutely. We can install a range of smart thermostats, including those from leading brands like Hive and Nest. These controls allow you to manage your heating and hot water remotely from your smartphone, helping you improve efficiency and lower your energy bills.
Ready to Get Your New Boiler Installed?
Call us today for a free, no-obligation boiler installation quote across Littlehampton, Worthing, Chichester, Lancing and surrounding areas.


