Installing a new boiler is a significant investment in your home's comfort and energy efficiency. Whether you're replacing an old, unreliable boiler or upgrading to a more efficient model to reduce your energy bills, choosing the right installer is just as important as choosing the right boiler.
At Mansfield Mechanical, we provide professional boiler installations throughout Brighton and Chichester. Our Gas Safe and OFTEC registered engineers have decades of combined experience installing all types of domestic boilers, ensuring your new heating system is fitted correctly, performs efficiently, and lasts for years to come.
Modern boilers are significantly more efficient than older models, with condensing boilers achieving efficiency ratings of 90% or higher. This improved efficiency means lower energy bills and reduced carbon emissions – better for your pocket and better for the environment.
We'll help you choose the right type and size of boiler for your home. Combination (combi) boilers provide instant hot water and heating without needing a separate cylinder, making them ideal for smaller homes with one bathroom. System boilers work with a cylinder to store hot water, perfect for homes with multiple bathrooms or higher hot water demands. Regular (conventional) boilers suit homes with traditional heating systems and existing cylinders.
Every installation begins with a home survey where we assess your property, understand your heating and hot water needs, and identify the best location for your new boiler. We'll discuss your requirements, recommend suitable boiler models, and provide a detailed, transparent quote with no hidden costs.
We only recommend boilers from reputable manufacturers with proven reliability and strong warranty support. Depending on your choice, warranties of up to 10 years are available, giving you long-term peace of mind.
On installation day, our engineers arrive on time with all necessary equipment and materials. We protect your home with dust sheets, work efficiently to minimise disruption, and keep you informed throughout the process.
The installation typically takes one to two days depending on the complexity. We'll remove your old boiler, install the new one with all necessary pipework, flue, and controls, connect it to your existing system, and thoroughly test everything before handover.
When installing a new boiler, we strongly recommend a complete system flush to remove sludge and debris from your radiators and pipework. This ensures your new boiler operates at peak efficiency and protects it from premature failure. We can also upgrade your heating controls to smart thermostats or weather compensation systems for even greater efficiency.
If your existing radiators are old or inefficient, we can advise on replacements. Modern radiators heat up faster and provide better heat distribution, complementing your new boiler's performance.
Once installation is complete, we fully commission your new boiler, adjusting all settings for optimal performance and efficiency. We'll demonstrate how to operate your new heating system, explain the controls, and show you where to find the pressure gauge and filling loop.
You'll receive all necessary documentation including your Gas Safe Building Regulations Compliance Certificate, manufacturer's warranty registration, operating instructions, and our service records. We'll also explain your boiler's maintenance requirements and can arrange annual servicing to keep your warranty valid.
We provide competitive, transparent pricing with detailed quotations that outline all costs. Many boiler manufacturers offer finance packages to spread the cost of your new boiler, making it more affordable to upgrade. We're happy to discuss available options.
As a local company serving Brighton and Chichester, we're here for the long term. We stand behind every installation and provide ongoing support, servicing, and repairs should you ever need us. You're not just getting a boiler – you're getting a trusted local engineer who'll be there when you need them.
Call us on 07908 724702 for a free, no-obligation quote on your new boiler installation.
Trusted heating engineers delivering expert workmanship across Sussex and South London.
Fully Accredited – Gas Safe, OFTEC and CIPHE certified
Decades of Experience – Expert knowledge across all heating systems
Personal Service – The same reliable engineers every time
Sector Specialists – Trusted by schools, healthcare, and homeowners
A smaller, professional team that genuinely cares about getting the job done right.
Reliable Engineers – We show up when we say we will, every time
Honest Advice – No unnecessary work, no hidden costs
Flexible Scheduling – We work around you and your property
All Systems Covered – Gas, oil, heat pumps, and solar thermal
