Why Homeowners Choose Smart Heat Experts
✅ Fully Gas Safe Registered
Our team is fully certified for Gas and LPG boiler installations. You’ll get a safe, legal, and compliant install — with all paperwork handled.
✅ Clean, Reliable Workmanship
We show up when we say we will, keep things tidy, and treat your home with respect — simple as that.
✅ Fast Turnarounds – Emergency Ready
Boiler broken down? We can often replace your system within 24–72 hours. In urgent cases, we’ll prioritise and let you know the soonest available install slot.
✅ We Help You Choose the Right Boiler
Not sure which boiler is right? We’ll explain your options and help you choose the right setup for your home and lifestyle.
✅ Heating Controls That Suit Your System
We fit a wide range of controls, from smart thermostats and app based systems to weather compensated and boiler branded options. We’ll help you choose the best setup for your home and how you live.
Need help fast? Call us directly on 01444 672796 to check emergency availability.
We Install All Types of Boilers and Heating Systems
Whether you're replacing an old setup or planning an upgrade, we install a full range of Gas and LPG boilers across Haywards Heath and Mid Sussex. We'll help you choose the right boiler for your home and hot water needs during your free survey.
Combi boilers are a popular choice for homes needing efficient heating and hot water without a cylinder or loft tanks. They heat water on demand and are ideal for properties with one bathroom. Most older heating systems can be upgraded to a combi setup if that’s the right move for your home. If you're interested in a system-to-combi conversion, we can talk through the benefits during your survey.
System Boilers
(with Hot Water Tank)
System boilers heat your home and store hot water in a separate tank, usually found in an airing cupboard. They're ideal for homes with higher hot water use, or where hot water is needed at multiple taps at once. If your property still uses a conventional cylinder, we can upgrade your system to a pressurised unvented tank for better performance and pressure.
Regular or Heat-Only Boilers
Regular boilers use a hot water tank and cold-water storage tanks in the loft. They’re simple, reliable and still common in many homes. These systems often have good potential for upgrades, whether that’s switching to a sealed system, improving efficiency or adding better controls. We’ll advise on the best way forward for your property.
💬 Need help choosing?
We’ll guide you through the options during your free home survey. Whether you're replacing like-for-like or switching to a more efficient setup, we’ll guide you every step of the way.
Book your free boiler survey
Let’s find the best boiler for your home and your heating needs.
Trusted Boiler Brands We Recommend and Install
Worcester Bosch
One of the most trusted names in the industry. Worcester offer boiler options to suit almost any size system, from small homes to large properties with higher water demand. Their smart control options are excellent and, as accredited installers, we can offer extended warranties from 10 to 12 years. Their aftercare and customer service are fantastic, and they even offer budget-friendly models for landlords or smaller properties.
Vaillant
Vaillant boilers are known for being extremely quiet and incredibly reliable. They offer a wide range of outputs, so we can match the right model to your property and hot water use. Most models come with up to 10 years warranty when fitted by an approved installer, giving you long-term peace of mind. They’re ideal for families and larger households.
Ideal Boilers
Ideal are a great balance of performance and innovation. Their control options are some of the best available, giving you great flexibility whether you're using a combi or system setup. They offer warranties up to 10 years, with simple servicing and responsive aftercare. Great value, easy to adapt to older systems, and very popular across Sussex.
Not sure which boiler is right for your home?
We're here to help you choose with no pressure and honest advice.
Glow Worm
Glow-worm is part of the Vaillant Group and offers excellent reliability with slightly more budget-conscious pricing. Many of their boilers include 10-year warranties and are ideal for landlords or customers wanting long-term peace of mind without breaking the bank. They're easy to repair, well supported and a solid choice.
How Our Boiler Installation Process Works
We keep things simple and straightforward. Here’s what happens when you choose us to replace or upgrade your boiler.
Book Your Free Survey
We’ll visit your home, check your current system, and talk through the best boiler options for your setup, usage, and property type.
Fixed Price Quote
We’ll give you a clear, fixed-price quote during your survey. In most cases, you’ll receive it on the spot to look over in your own time. If you’re happy, you’re welcome to book there and then, but there’s absolutely no pressure. You’ll be left in comfort to make your own decision when you're ready.
Clean, Professional Installation
Our engineers arrive on time, work cleanly, and treat your home with care. Most installs are done in one day, and we’ll show you how everything works before we leave.
Registration and Support
We register your new boiler with the manufacturer and Gas Safe. You’ll receive your warranty and paperwork, and we’ll be here for anything else you need.
Ready to get started?
Book your free survey and let’s get the right boiler in place, quickly and properly.
Looking for Oil Boilers or Heat Pumps?
Boiler Installation FAQs
How do I know if I need a new boiler?
If your boiler is over 10 years old and showing signs of distress — like strange noises, rising repair costs, or issues found during a service — it may be time to consider replacing it. Older, non-condensing boilers are much less efficient and usually cost more to run.
Can I upgrade to a combi boiler from my current system?
In most cases, yes. Around 9 out of 10 homes can be converted to a combi setup. But it’s not always the best choice. We’ll assess your home, usage, and hot water demand during a visit, and guide you to the right solution for your system.
What’s included in a new boiler installation?
Our quotes include everything that’s needed — pipework, filters, flues, smart controls, and optional extras if suitable. Everything is listed clearly, with no hidden costs and no generic pricing.
How long does a boiler installation take?
Most like-for-like swaps take 1 to 2 days. If you're switching from a system boiler to a combi, allow 2 to 3 days. Full upgrades with new pipework can take 5 to 7 days, depending on layout and access.
Do you offer finance or staged payments?
We don’t offer finance plans directly, but we do accept card payments. That gives you the flexibility to manage your payments through your own card provider.
What warranty do I get with a new boiler?
We supply boilers with a minimum of 10 years manufacturer warranty as standard. We take care of the Gas Safe and warranty registration for you, so you're fully covered.
Can I get a quote without a home visit?
Yes. You can send us photos via WhatsApp and we’ll give you a guide quote remotely. If needed, we’ll then arrange a free home survey to confirm everything.
Do you remove my old boiler and clean up?
Absolutely. We’ll remove and recycle the old boiler and materials, clean the area, and leave everything tidy. We treat your home with care from start to finish.
