A new boiler installation in London typically costs £1,600-£4,500, depending on your boiler type and complexity of work. You'll want to compare quotes from at least three Gas Safe registered installers to get the best deal – popular companies include PH247 and Tru-Heat Ltd. Top brands like Worcester Bosch and Vaillant offer reliable options, with installations taking anywhere from 4 hours to 3 days. The right choice can boost your property value by up to 4% and slash those energy bills – let's explore your options.
Compare Quotes From Gas Safe Boiler Installers In London
Ready to save money on your London boiler installation? Take the first step towards a safe and efficient heating system by comparing quotes from trusted Gas Safe registered installers.
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Cost Of A New Boiler In London
In London, the cost of a new boiler installation varies considerably based on several factors, with prices typically ranging from £1,600 to £4,500. A straightforward combi boiler replacement represents the lower end of this range, while system conversions and complex installations command higher prices. The final cost depends on numerous installation requirements and considerations:
- System power flush requirements (£300-£500)
- New controls or smart thermostat installation
- Gas supply pipe upgrades if required
- Condensate pipe routing and installation
- Magnetic filter installation
- Location of new boiler and complexity of access
- Additional radiators or system modifications
- Building regulations compliance requirements
- Type and length of warranty selected
- Brand and efficiency rating of chosen boiler
| Installation Type | Lower Price | Average Price | Higher Price |
|---|---|---|---|
| Combi boiler installation (like-for-like) | £1,600 | £2,400 | £3,200 |
| Conventional boiler replacement (like-for-like) | £1,700 | £2,850 | £4,000 |
| Convert conventional to combi | £2,800 | £3,400 | £4,000 |
Top 5 Rated Boiler Installers In London, UK
1. PH247
A Gas Safe registered company providing extensive boiler services across London.
They offer 24/7 emergency support and specialise in installations, repairs, and servicing with over 1,000 positive customer reviews backing their expertise.
- Phone number: 020 3764 2713
- Website: ph247.co.uk
- Reviews: 4.9/5
2. Tru-Heat Ltd
A family-operated business with more than 25 years of industry experience.
They excel in boiler installations, repairs, and maintenance services throughout London and neighbouring areas.
- Phone number: 07792 863 355
- Website: tru-heat.com
- Reviews: 4.8/5
3. Plumb London
A well-established company with Gas Safe registered engineers serving all London boroughs.
They've amassed over 2,000 customer reviews while providing extensive boiler services including installations, repairs, and annual maintenance.
- Phone number: 0203 637 6278
- Website: plumb.london
- Reviews: 4.7/5
4. EPG Specialists Limited
With 17+ years of experience in central heating installations, EPG Specialists focuses on boiler replacements and system upgrades.
They primarily serve Clapham and surrounding London areas.
- Phone number: 08009 992 955
- Website: epgspecialists.co.uk
- Reviews: 4.9/5
5. Bradshaw Plumbing and Heating Ltd
A family company serving London and Essex, specialising in boiler installations, repairs, and maintenance.
They've built a strong reputation with hundreds of positive customer reviews.
- Phone number: 07970 713 987
- Website: bradshawplumbingandheating.co.uk
- Reviews: 4.8/5
What Are Some Popular Boiler Brands In London?
When you're looking for a new boiler in London, you'll find several trusted brands to choose from, including Worcester Bosch, Viessmann, and Vaillant.
These manufacturers have built strong reputations in the UK market, with Worcester Bosch leading the pack as a Which? Best Buy winner and Viessmann gaining recognition for its innovative German engineering.
If you're working with a tighter budget, brands like Ideal and Baxi offer quality options with excellent warranties while maintaining reliable performance standards.
Our comprehensive Worcester Bosch guide explores one of the UK's most trusted boiler manufacturers in detail.
Vaillant
German engineering excellence meets British homes through Vaillant, one of London's most trusted boiler manufacturers since 1874.
If you're looking for reliability and efficiency, you'll find both in their impressive range of combi, system, and regular boilers.
You'll love their ecoTEC plus series if you're after a high-efficiency combi boiler, with prices starting from £800 (excluding installation).
For smaller homes, the compact ecoFIT pure offers great value without compromising on performance.
What's really impressive is Vaillant's commitment to quiet operation – their boilers won't wake you up in the middle of the night!
With efficiency ratings up to 94% and warranties extending to 10 years, you're making a smart investment.
Plus, their smart control compatibility means you can manage your heating from your phone.
Our dedicated Vaillant boilers guide explores their complete product range and specifications in detail.
Worcester Bosch
A true British success story, Worcester Bosch has dominated the UK boiler market for decades with their reputation for reliability and innovation.
They've even earned a Royal Warrant for supplying hot water products to the royal family – now that's what we call a seal of approval!
Their Greenstar range is particularly popular in London homes, with the new 4000 series leading the charge as their hydrogen-ready model.
You'll find prices starting from £1,895 including installation, which is quite competitive for a premium brand.
If you're wondering about their credentials, Worcester Bosch has won Which? Best Buy awards for 10 years running.
They're also consistently rated as the UK's best value boiler brand, which means you're getting quality without breaking the bank.
Whether you need a combi or system boiler, Worcester Bosch offers options tailored to every type of property.
Viessmann
Speaking of engineering excellence, Viessmann has brought their precision German craftsmanship to London's homes with impressive results.
Their advanced condensing boilers achieve up to 98% efficiency, which means more heat and lower energy bills for you.
You'll find an extensive range to suit any home, from the entry-level Vitodens 050-W to the premium Vitodens 200-W.
What's particularly appealing is their Inox-Radial heat exchanger – it's built like a tank but works like a charm, lasting for years without issues.
Price-wise, you're looking at £790-£3,287 for a new Viessmann boiler, depending on the model.
The best part? They offer warranties up to 12 years when installed by approved engineers, so you can rest easy knowing your investment is protected for the long haul.
Our Viessmann boilers guide provides comprehensive details about each model's specifications and features.
Ideal
British engineering shines through in Ideal's extensive boiler range, which has been warming London homes for over a century.
Their Logic+ and Vogue ranges offer something for every household, whether you're looking for a basic combi or a premium system boiler.
You'll appreciate Ideal's commitment to energy efficiency – their A-rated boilers achieve up to 94% efficiency, which means more warmth and lower energy bills.
The built-in frost protection is particularly handy for those chilly London winters.
When it comes to peace of mind, Ideal delivers with warranties up to 12 years on select models.
You can expect to pay between £600-£2,000 for the boiler itself, with installation adding £500-£1,500 to the total cost.
Many installers offer flexible payment plans, including 0% APR options, making it easier to manage the investment.
Our Ideal Boilers insights provide detailed reviews and comparisons to help you make an informed decision.
Baxi
Reliability meets innovation in Baxi's extensive range of heating solutions for London homes. With over 150 years of British engineering experience, they've become a trusted name for both homeowners and heating engineers across the capital.
You'll find impressive options like the Baxi 800 Combi, which comes with a generous 10-year warranty, or the space-saving 600 Combi that's perfect for your cosy London flat. Their models feature user-friendly controls and smart technology compatibility, so you can manage your heating from your phone.
What's particularly appealing for Londoners is Baxi's strong local support network. You won't have trouble finding replacement parts or qualified engineers when you need them.
Plus, their boilers meet the city's strict emissions standards while keeping your energy bills in check.
Our Baxi boilers guide provides in-depth reviews and comparisons of their complete product range.
Glow Worm
While Glow Worm mightn't be the flashiest name in London's heating scene, they've earned their reputation as the practical choice for budget-conscious homeowners.
You'll find their combi boilers, like the popular Ultimate3 and Energy series, priced between £500-£1,000 – considerably gentler on your wallet than some premium brands.
With outputs ranging from 25kW to 35kW, they're perfectly suited for most London homes.
What's particularly appealing is Glow Worm's extensive installer network across the capital, making it easy to find qualified professionals for installation and maintenance.
Installation typically costs £500-£1,500, depending on your property's requirements.
While their standard 2-year warranty might seem modest, you can extend it up to 15 years through registration – giving you long-term peace of mind without the premium price tag.
For homeowners seeking detailed information about specifications and maintenance, our Glow Worm Boilers section provides comprehensive guidance on all available models.
How Long Does a New Boiler Installation in London Take?
Your new boiler installation in London can take anywhere from 4-6 hours for a straightforward swap to 2-3 days for a more complex conversion.
The time required depends heavily on factors like your boiler type (combi, conventional, or system), whether you're changing boiler types, and if you're moving the unit to a new location.
While a like-for-like replacement in the same spot is typically completed within a day, converting from a conventional to a combi boiler or relocating your unit will need extra time for system modifications and new pipework.
Factors affecting installation time
Since every boiler installation is unique, the time needed can vary considerably based on several key factors.
The type of boiler you're installing plays a major role. A straight swap of your existing combi boiler might take just 4-6 hours, while converting from a conventional to a combi system could keep your installer busy for 2-3 days.
Your home's existing infrastructure matters too. Older properties might need pipe replacements or electrical updates, which can extend the timeline.
And if you're planning to relocate your boiler to a new spot, you'll need extra time for new pipework.
Additional upgrades like smart thermostats or power flushing will add more hours to the job.
Even the season matters – you might face longer wait times during winter when installers are at their busiest.
Understanding your installation expenses upfront helps you better plan for the time investment required for your new boiler project.
Replacing a combi boiler with another combi boiler in the same place
A straight combi-to-combi boiler swap is the quickest type of boiler installation you'll encounter in London.
With an experienced Gas Safe engineer, you can expect the job to take between 4-6 hours when replacing your old combi with a new one in the same location.
The process is relatively straightforward: your engineer will remove the old boiler, disconnect the existing pipework, and fit the new unit where the previous one was.
Since you're keeping the same setup, there's usually minimal modification needed to your current system.
Best of all, you'll typically have your new boiler up and running the same day.
Though factors like access to your boiler location and the condition of your existing pipework might affect the timeline, a combi-to-combi swap remains the most hassle-free option.
To ensure you make the right choice, comparing popular boiler models can help you select the most suitable option for your home.
Replacing a conventional boiler with another conventional boiler in the same place
While replacing a conventional boiler with another conventional boiler might seem straightforward, it's typically more time-intensive than a combi swap.
You'll need to allow 2-3 days for a complete installation, as these systems involve more components and pipework.
Day one usually involves removing your old boiler and preparing the area, which includes checking your existing infrastructure.
On day two, your heating engineer will install the new boiler and connect it to your hot water cylinder and heating system.
The final day is dedicated to testing everything works perfectly and making any necessary adjustments.
If you're in London, you can expect to pay between £2,500 and £4,500 for the full installation.
Pro tip: schedule your replacement during summer months to avoid shivering through any unexpected delays!
Replacing a conventional boiler with combi boiler
Converting your conventional boiler to a combi system requires more extensive work than a like-for-like replacement, typically taking 1-2 days to complete.
Your engineer will need to remove old tanks and cylinders while reconfiguring the existing pipework.
The installation timeline depends on several factors, including your property's layout and system accessibility.
If you've got a tricky loft space or need significant pipework changes, it might take up to 3 days to finish the job properly.
While the £3,500-£5,000 price tag might make your eyes water, you'll gain valuable space from removing those bulky tanks.
Plus, you'll enjoy instant hot water and potentially lower energy bills.
Just make sure your home's size and hot water demands suit a combi system before making the switch.
Questions & Answers
You'll face several key questions when pondering a new boiler installation in London, from recognising the signs you need one (like frequent breakdowns or rising energy bills) to understanding the 10-15 year average lifespan of modern boilers.
A new energy-efficient boiler can boost your London property value by 1-4% while cutting your energy costs by up to £300 yearly, making it a smart investment for homeowners.
To choose the right boiler, you'll need to reflect on your home's size, hot water demands, and current heating system – factors that a Gas Safe registered engineer from BoilerChamps.co.uk can help you evaluate.
Do I Need a New Boiler?
Determining whether you need a new boiler can feel like solving a mystery, but there are clear signs that make the decision easier.
If your boiler's making strange noises (think angry kettle sounds) or you're seeing your energy bills climb faster than a London property price, it's time to pay attention.
A boiler that's over 10-15 years old or breaking down more often than the Tube during a heatwave might be ready for retirement.
Watch out for warning signs like yellow flames instead of blue ones, or if your home's heating is as unpredictable as British weather.
When repair costs start approaching half the price of a new unit, it's usually smarter to upgrade.
How long does a new boiler last?
When homeowners invest in a new boiler, they naturally want to know how long it'll keep their home cosy. With proper care, you can expect your new boiler to serve you well for 15-20 years – especially if it's a modern condensing model.
Your boiler's lifespan largely depends on how well you treat it. Think of it like a car – regular servicing and maintenance are key. You'll want to schedule annual check-ups with a Gas Safe engineer and keep an eye on your water quality, particularly if you're in a hard water area.
Want to maximise your boiler's years of service? Make sure it's installed correctly by qualified professionals, maintain stable operating conditions, and address any unusual noises or performance issues promptly.
With proper care, you might even stretch its life beyond 20 years.
How much does a new boiler increase house value in London?
Wondering how much value a new boiler adds to your London home? Given London's higher property prices, you can expect a significant return on your investment. A new boiler could add around 1.9% to your home's value – that's about £5,700 on a £300,000 property.
The benefits go beyond just the price boost. You'll enjoy lower energy bills (up to £315 in annual savings) and improved reliability, making your home more attractive to potential buyers.
Plus, it'll boost your property's EPC rating, which is increasingly important in London's competitive market.
When you combine a new boiler with other improvements like double glazing or smart thermostats, you're looking at even better returns.
Just remember to choose a Gas Safe registered installer to guarantee quality work that adds maximum value.
How do I choose the right boiler for my home in London?
The key to finding your perfect London boiler lies in matching it to your home's specific needs.
First, consider your property's size and hot water demands. If you've got a cosy flat with one bathroom, a combi boiler will serve you well. For larger homes with multiple bathrooms, you'll want to look at system or conventional boilers.
Think about your available space too. Modern combi boilers are pretty compact – perfect for those snug London properties where every inch counts.
Don't forget to check the energy efficiency rating; an A-rated model will keep those heating bills in check.
Smart features are worth considering – imagine adjusting your heating from your phone while you're still on the Tube.
Just remember, whatever you choose, always get it installed by a Gas Safe registered engineer.
Looking for a great deal on a new boiler?
Looking for a New Boiler in London? Save Money Today!
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