Let’s face it—when your boiler breaks down, it’s more than just inconvenient. It can leave your home without heating or hot water at the worst possible time. That’s why choosing a professional boiler replacement service is essential—not just for comfort, but also for safety and long-term efficiency.
In this guide, we’ll walk you through what’s included in a boiler replacement, so you know exactly what to expect from start to finish.
Seeking a reliable provider for expert boiler installation in Bromley or the surrounding areas? Call us on 0203 620 5800 or email hello@southlondonheating.co.uk to get started today.
We don’t just replace boilers, we deliver peace of mind. With South London Heating, every boiler replacement service includes expert guidance, certified installation, and top-tier aftercare you can trust.
What’s Included In A Professional Boiler Replacement?
A professional boiler replacement involves more than just replacing the old with a new one. It’s a carefully planned process that ensures safety, efficiency, and long-lasting performance.
Let’s break it down…
1. Initial Consultation And Home Assessment
Your boiler replacement process begins with an in-home survey. One of our experienced Business Directors will inspect your existing system and assess your heating and hot water requirements. We consider:
- The size and type of your property
- Current system performance
- Water pressure and pipework
- Number of radiators and bathrooms
- Future energy needs or upgrades
This helps us recommend the best system for your needs—whether that’s a combination boiler, system boiler, or regular boiler.
2. Tailored Recommendation & Transparent Quotation
Once we’ve assessed your setup, we provide a detailed, no-obligation quote. It outlines the full cost of boiler replacement, timelines, and work involved so there are no surprises later.
We also explain the pros and cons of different brands, such as Worcester Bosch or Vaillant, and whether a boiler upgrade could improve efficiency.
Looking to compare systems? Read our boiler installation checklist for expert tips.
3. Safe Removal Of Your Old Boiler
Safety is paramount. We will disconnect your old boiler in accordance with strict Gas Safe protocols. This step may also include:
- Inspecting and capping off gas and water pipes
- Disposing of your old unit in an eco-friendly way
Every Gas Safe boiler replacement we complete adheres to the latest UK safety regulations.
4. Installation Of Your New Boiler System
The new boiler installation is the core of the service. Depending on complexity, it can take 1–3 days. Our qualified engineers will:
- Install the new boiler in the agreed location
- Fit all necessary pipework and to connect your existing heating system to your new boiler
- Connect to your gas supply
- Add system filters and controls
- Update or replace flue system if needed
We always test the system for leaks and confirm safe operation. Whether it’s a boiler installation in South London or a boiler installation in Bromley, our standards remain consistently high.
5. Powerflush Or System Cleanse
Before switching on your new boiler, we carry out a system flush—either a chemical cleanse or a full powerflush, depending on your system’s condition. This prevents sludge from damaging your new unit and ensures optimum performance.
6. Smart Controls & Energy-Efficiency Upgrades
Modern boiler replacement services often include smart heating controls, such as Hive or Nest. We’ll set these up for you, ensuring you get:
- Zoned heating
- Wi-Fi-enabled remote control
- Efficient energy usage
- Lower heating bills over time
We may also install new thermostatic radiator valves (TRVs) or upgrade cylinders if necessary.
7. Compliance Certificates And System Testing
Once installed, we carry out final safety checks and provide:
- A Building Regulations Certificate
- A Gas Safe Notification
- Benchmark commissioning sheet
- Your manufacturer’s warranty (up to 10 years with some models)
This is part of our commitment to providing a reliable boiler replacement backed by full legal compliance.
8. Aftercare, Maintenance & Support
We don’t just walk away once the job is done. Your full boiler replacement service includes:
- Demonstration of your new system
- Guidance on maintenance
- Free reminder for annual boiler servicing
- Priority response under our Homecare Plans
- Flushing the system to remove debris
If you're ever in need of an emergency boiler replacement, we’re available to help.
CONTACT SOUTH LONDON HEATING
Conclusion
A professional boiler replacement isn’t just about installing a new unit, it’s about upgrading your comfort, energy efficiency and home value. Contact South London Heating; we take care of everything, from the initial call to the final safety check.
With over 15 years of industry experience, Gas Safe certification, and countless happy customers across Bromley and South London, we’re here to help you every step of the way.
Ready to replace your boiler with confidence? Call 0203 620 5800 or email hello@southlondonheating.co.uk to speak to our heating experts.
FAQs
1. How long does a boiler replacement take?
Most replacements take between 1 and 2 days however, complex boiler replacements may take longer. We always advise you in advance.
2. What’s the average boiler replacement cost in the UK?
The cost can range from £1,500 to £4,000, depending on the type of boiler, labour, and any additional upgrades such as cylinders or smart controls.
3. Do I need to replace my boiler, or can it be repaired?
We’ll continually assess whether a repair is possible before recommending a replacement. If your boiler is over 10–15 years old, replacement is often a more cost-effective option.
4. Are your engineers Gas Safe registered?
Yes, all our engineers are fully certified and Gas Safe registered, ensuring your boiler installation is compliant and safe.
5. Can I finance my boiler replacement?
Absolutely. We offer several flexible boiler finance options, including 0% interest and low monthly payments through our partner Novuna.
