Boiler installation is not something London homeowners can afford to take lightly. Whether it’s upgrading to an energy-efficient combi boiler or replacing an ageing system, the right installer ensures safety, longevity, and performance. With hundreds of options in the capital, choosing the best can be overwhelming. That’s why we’ve narrowed down the top boiler installation companies in London, based on verified reviews, certifications, and service quality.
This guide offers an insightful breakdown of what to look for in a boiler company, who the top providers are, and how to make the right choice for your home or property.
What Makes a Great Boiler Installation Company in London?
Choosing a reliable installer involves more than just a competitive quote. Reputable boiler installation companies in London typically have several key features that distinguish them from average providers.
Certification and Accreditation
Trustworthy companies are always Gas Safe registered, ensuring legal compliance and safe installations. Some also carry accreditations from boiler brands like Vaillant and Worcester Bosch, indicating special training and expertise.
Reputation and Reviews
The best companies are consistently rated highly on Google Business, Checkatrade, and Trustpilot. These reviews give insight into customer satisfaction, response times, and aftercare services. For more guidance, see our post on how to evaluate local heating professionals.
Range of Services
Beyond installations, a professional company often offers boiler servicing, repairs, emergency callouts, and system upgrades. This wide scope ensures continuity of service for years to come.
How Did We Choose the Top Boiler Installation Companies in London?
Our selection of the top 10 companies is based on a combination of factors designed to reflect what real homeowners in London value most.
Methodology
We analysed customer ratings on Google Business, verified company accreditations, availability of boiler finance options, warranty policies, and their ability to install leading brands like Ideal, Vaillant, and Worcester Bosch. To further refine the list, we also considered industry reputation and years of experience.
Which Are the Top 10 Boiler Installation Companies in London?
1. Pimlico Plumbers – London’s Most Recognised Home Service Brand
As one of the capital’s most iconic service providers, Pimlico Plumbers is known for its trademark professionalism and round-the-clock support. With decades of experience, their boiler division offers tailored solutions for both domestic and commercial clients across Central London.
What Makes Them Stand Out
Pimlico is renowned for its reliable same-day service and transparent pricing. Their engineers arrive in branded vans, carry full ID, and can often install or repair boilers within 24 hours perfect for urgent breakdowns.
Ideal Clients
Busy Londoners who need swift, no-hassle service and long-term support plans.
Key Services
- Emergency boiler replacements
- System and combi boiler installations
Pricing
Free consultation available; installations from approximately £2,200
- Website: www.pimlicoplumbers.com
- Phone: 020 4527 9831
- Email: Sales@pimlicoplumbers.com
- Address: Pimlico House, 1 Sail St, London SE11 6NQ, UK
Review
★ “Fast, tidy, and genuinely professional – they made a stressful boiler replacement feel simple.”
2. VHL – Village Heating Limited – Heating London Since 1990
With over 30 years of experience, VHL combines scale with service. Operating across Greater London, they provide fast, safe, and efficient installations backed by premium partnerships with brands like Worcester Bosch.
What Makes Them Stand Out
VHL offers flexible installation slots, often including weekends, with a strong focus on customer communication. Their digital booking and tracking system improves convenience.
Ideal Clients
Homeowners seeking a responsive, tech-enabled installer with strong aftercare packages.
Key Services
- Worcester Bosch installations
- Emergency boiler repair services
Pricing
Free estimates; installations from £2,000
- Website: www.villageheating.co.uk
- Phone: 020 8102 9898
- Email: enquiries@villageheating.co.uk
- Address: 66 College Rd, Harrow HA1 1BE, UK
3. WPJ Heating – Premium Eco-Conscious Boiler Experts
WPJ Heating stands out for its dedication to sustainability. They not only install high-efficiency boilers but also offset carbon from every installation, making them a top pick for environmentally aware Londoners.
What Makes Them Stand Out
Carbon-neutral installations and detailed post-installation care make WPJ ideal for eco-upgrades. Their engineers are also praised for clear, courteous communication.
Ideal Clients
Green-conscious households and families looking for future-ready systems.
Key Services
- Eco-combi boiler installations
- Boiler system diagnostics and carbon offsetting
Pricing
Free site surveys; typical installs from £2,100
- Website: www.wpjheating.co.uk
- Phone: 020 7350 2511
- Email: info@wpjheating.co.uk
- Address: Fieldhouse, 284b Battersea Park Rd, London SW11 3BT, United Kingdom
4. South London Heating – Trusted by Local Families for Over 15 Years
South London Heating delivers personalised service with a small team of skilled engineers. Serving areas like Clapham and Streatham, they’ve become a go-to for families seeking trusted local help.
What Makes Them Stand Out
Tailored solutions for heritage and period properties, especially Victorian homes needing careful pipework planning.
Ideal Clients
South London homeowners upgrading older systems.
Key Services
- Full boiler upgrades
- Heating system zoning and smart controls
Pricing
Quotes available; average install starts at £1,900
- Website: www.southlondonheating.co.uk
- Phone:
- Email: hello@southlondonheating.co.ukb
- Address: 67 High St, London SE20 7HW, United Kingdom
5. Thames Boilers – East London’s Go-To for No-Fuss Installs
Specialising in rapid installations and fixed-price quotes, Thames Boilers is ideal for busy professionals who want the job done fast — with no surprise costs.
What Makes Them Stand Out
They commit to quoting and booking within one call and offer 48-hour installations, often without requiring a home visit.
Ideal Clients
First-time homeowners and working professionals.
Key Services
- Fixed-fee combi boiler swaps
- Finance packages with zero deposit
Pricing
Straightforward quote process; typical installs from £1,800
- Website: www.thamesboilers.co.uk
- Phone: 01322 788418
- Email: hello@thamesboilers.co.uk
- Address: Bromley Ln, Chislehurst BR7 6LH, United Kingdom
6. Aura Gas London – Affordable Heating Experts with Fast Turnaround
Aura Gas brings over 15 years of heating experience to London, offering responsive customer service and straightforward pricing across boiler brands like Ideal and Vaillant.
What Makes Them Stand Out
Speedy callouts and helpful live chat make bookings simple for time-sensitive installations.
Ideal Clients
Budget-conscious households looking for a mix of value and support.
Key Services
- Boiler upgrades with manufacturer warranties
- Annual service plans
Pricing
Free quotes; standard installs from £2,000
- Website: www.auragas.co.uk
- Phone: 02392 252 171
- Email: hello@auraretrofit.co.uk
- Address: 4th Floor Charles House, 108-110 Finchley Road, London, United Kingdom
7. Homecure Plumbers – Multi-Service Engineers Across North London
Homecure is a one-stop solution for plumbing, gas, and heating needs. Their trained engineers can handle complex installations or fix a fault within hours of your call.
What Makes Them Stand Out
Ability to combine plumbing and heating into a single service visit — ideal for time-pressed homeowners.
Ideal Clients
Property managers and homeowners juggling multiple repairs.
Key Services
- Full heating system installs
- Emergency boiler diagnostics
Pricing
Free initial assessment; pricing based on system complexity
- Website: www.homecureplumbers.co.uk
- Phone: 0204 600 0825
- Email: info@homecureplumbers.co.uk
- Address: Homecure Plumbers, 1st Floor, 5 Century Court, Tolpits Lane. Northwood, Watford. WD18 9PX
8. London Boiler Company – Specialists in Premium Systems and Smart Heating
Positioning itself as the luxury choice, London Boiler Company handles high-end installs with precision. Known for their Worcester Bosch partnerships, they often deliver longer-than-average warranties.
What Makes Them Stand Out
Professional finish, extended guarantees, and deep expertise in integrating smart controls like Nest and Hive.
Ideal Clients
High-spec homes or homeowners seeking top-tier performance and tech.
Key Services
- Premium boiler installations
- Smart heating system design
Pricing
Detailed quotes after consultation; starting around £2,300
- Website: www.londonboilercompany.com
- Phone: 020 8829 8244
- Email: hello@londonboilercompany.com
- Address: The Old Bakery, 2 – 3 Pymmes Mews Palmers Green, London N13 4PF
9. The Heating Engineers Ltd – Custom Heating for Every Property Type
This firm prides itself on offering bespoke heating solutions that cater to the specific needs of each property. From small flats to large estates, their engineers carefully design every system.
What Makes Them Stand Out
In-depth property assessments and custom piping layouts ensure long-term efficiency.
Ideal Clients
Property developers, landlords, and larger family homes.
Key Services
- Tailored heating system installations
- Low-pressure zone adaptations
Pricing
Free consultations; packages vary by system size
- Website: www.theheatingengineers.com
- Phone: 20 8099 7576
- Email: service@heatingengineerslondon.com
- Address: Heating Engineers London, 542 Uxbridge Road, Pinner, London, HA5 3QA
10. Rowlen Boiler Services – Family-Run, Flexible, and Fully Accredited
With roots as a family business, Rowlen Boiler Services focuses on delivering reliable heating support with a personal touch. They’re one of the few firms offering 24/7 emergency repairs without inflated costs.
What Makes Them Stand Out
Flexible scheduling and real-time tracking keep customers updated every step of the way.
Ideal Clients
Families, older adults, and anyone needing dependable, friendly support.
Key Services
- 24-hour boiler repair and replacement
- System cleaning and descaling
Pricing
Same-day quotes available; prices typically start at £2,100
- Website: www.rowlen.co.uk
- Phone: 020 8395 8616
- Email: info@rowlen.co.uk
- Address: Rowlen Boiler Services, 50 Whittaker Rd, Sutton, SM3 9QG
What Services Do These Companies Typically Offer?
Boiler Installations
Each of the featured companies provides full-service boiler installations, including combi, system, and conventional models. Engineers typically assess the property layout, family size, and hot water usage before recommending a solution. For example, smaller flats might benefit from a combi boiler, while larger homes could require a system boiler with a hot water cylinder. If you’re unsure which setup suits your property best, our guide to boiler types for different home sizes offers practical insights to help make an informed choice.
Boiler Maintenance and Repairs
Maintenance is essential to ensure optimal performance and protect your warranty. The top-rated installers in London also provide scheduled boiler servicing, fault diagnostics, and repairs. Many offer service contracts tailored to homeowners or landlords managing multiple properties. These contracts are especially useful for those seeking ongoing heating maintenance agreements that include annual inspections and priority callouts.
Emergency Callouts
Boiler breakdowns often happen at the worst times — typically in winter or during holidays. Fortunately, most companies on this list have emergency services that include same-day or 24/7 repairs. Whether it’s a pressure drop or a complete system failure, fast response times can prevent further disruption. Learn more about handling such situations in our article on dealing with heating emergencies in London homes, where you’ll find tips on what to do before help arrives.
Finance and Payment Options
Given the cost of a new boiler, flexible payment plans can make the upgrade more manageable. Many London installers now offer interest-free or low-rate finance, allowing you to spread costs over 6 to 60 months. This is particularly useful for those carrying out major home renovations or budgeting for winter improvements. For more about how finance works with boiler replacements, check our overview of interest-free boiler installation options offered by certified local firms.
How Much Does Boiler Installation Cost in London?
The cost of a boiler installation in London can vary significantly depending on the boiler type, installation complexity, and provider. Below is a comparative table featuring average prices, warranties, and service speeds from the top 10 companies.
| Company | Average Cost (Combi Boiler) | Warranty Length | Installation Time | Finance Options |
| Pimlico Plumbers | £2,200 – £3,000 | Up to 10 years | 1–2 days | Yes |
| VHL | £2,000 – £2,800 | Up to 10 years | Same day | Yes |
| WPJ Heating | £2,100 – £3,100 | Up to 12 years | 1–2 days | Yes |
| South London Heating | £1,900 – £2,700 | Up to 10 years | 1–3 days | Yes |
| Thames Boilers | £1,800 – £2,500 | Up to 7 years | 24–48 hours | Yes |
| Aura Gas | £2,000 – £2,900 | Up to 10 years | 2 days | Yes |
| Homecure Plumbers | £2,000 – £2,600 | Up to 8 years | 1–2 days | Yes |
| London Boiler Company | £2,300 – £3,200 | Up to 12 years | 1 day | Yes |
| The Heating Engineers | £2,000 – £2,750 | Up to 10 years | 1–2 days | Yes |
| Rowlen Boiler Services | £2,100 – £2,800 | Up to 10 years | Same day available | Yes |
If you’re looking for ways to reduce boiler installation expenses, consider reading our post on cost-saving tips when upgrading your heating system in the capital.
Why Is It Important to Hire a Gas Safe Registered Engineer?
Working with gas appliances is a regulated trade in the UK, which means only Gas Safe registered engineers are legally qualified to carry out boiler installations. Registration ensures that the installer has undergone rigorous training and assessment. It also provides legal protection and peace of mind for homeowners.
During property refurbishments or major plumbing upgrades, hiring a registered engineer becomes even more crucial. Non-compliance not only risks safety but may also void your warranty and invalidate your home insurance policy.
What Should You Ask Before Hiring a Boiler Installer in London?
Accreditation with Manufacturers
It’s important to ask if the company is accredited with major boiler manufacturers like Worcester Bosch, Vaillant, or Ideal. Accreditation often means extended warranties and better aftercare.
Fixed-Price Quotes
Some companies offer quotes that include labour, materials, VAT, and disposal. Others may charge additional fees. Understanding what’s included helps avoid hidden costs.
Availability for Emergency Work
A provider that can accommodate short-notice or weekend work may be more suitable if your boiler is on its last legs. We’ve detailed what to expect from same-day boiler installation services in another guide.
For those managing broader upgrades, coordinated services like full home heating and water system installations are also worth discussing before choosing a provider.
Conclusion
Londoners have no shortage of options when it comes to professional boiler installation. Whether you’re replacing an old combi or installing a system boiler in a new extension, the companies listed here offer certified, trusted, and customer-approved services.
To explore additional services beyond heating from plumbing to full home energy upgrades browse our directory of top-rated home service providers in London.
FAQs About Boiler Installation Companies in London
What is the average cost of boiler installation in London?
Prices typically range from £1,800 to £3,200 depending on the boiler type and provider.
How long does it take to install a boiler in London homes?
Most installations are completed within 1 to 2 days.
Are London boiler companies Gas Safe registered?
Yes, reputable companies are always Gas Safe certified.
Can I get finance for a new boiler in London?
Many companies offer interest-free or low-rate finance plans.
Do London installers handle emergency boiler replacements?
Yes, several provide same-day or 24/7 emergency services.
Which boiler brands do London companies recommend?
Worcester Bosch, Vaillant, and Ideal are the most commonly recommended brands.
Do installers in London offer free quotes?
Most leading companies offer free consultations or estimates.