We’re Thames Boilers, your trusted local experts for boiler servicing in Mottingham and surrounding areas. Since 2017, we’ve maintained a perfect 5-star rating by offering personalised service and honest advice. Our two service options start from £120, with real-time tracking and digital certificates for your peace of mind. We’re specialists in all major domestic brands, providing thorough safety checks and efficiency improvements that can reduce your fuel costs. Let’s explore how we can keep your home warm and safe.
Why Choose Us To Service Your Boiler In Mottingham?

When it comes to keeping your Mottingham home’s heating system running smoothly, you’ll want a reliable, experienced professional who knows exactly what they’re doing.
We’ve been helping homeowners like you tackle common boiler issues and providing essential boiler maintenance tips since 2017, earning a stellar 5-star rating from our satisfied customers.
As your local Gas Safe registered experts, we’re passionate about delivering personalised service that makes you feel like part of our family.
We’ll explain everything in plain English, from what we’re checking during your service to how you can prevent future problems.
Plus, with our convenient online booking system, you can schedule your appointment whenever it suits you.
We’re not just another faceless company – we’re your neighbours, committed to keeping your home warm and comfortable.
Our comprehensive services include flue gas analysis and component cleaning to ensure your boiler operates at peak efficiency.
How It Works

We’ve made getting your boiler serviced super simple with our streamlined three-step process.
First, you’ll book your preferred appointment time through our easy-to-use online booking system at booking.thamesboilers.co.uk.
Our online job booking system provides convenient 24/7 scheduling access for all customers.
When we’re heading to your home, you’ll receive a text message with a live tracking link so you can see exactly where we are.
Once we’ve completed the service, we’ll email your certificate straight to your inbox.
1. Book Online
Looking to book your boiler service online? We’ve made it incredibly simple with our 24/7 digital booking system.
In just a few clicks, you’ll get instant confirmation and a time that works for you – no phone calls needed!
We understand that dealing with common boiler issues can be stressful, which is why we’ve streamlined the booking process.
Whether you’re due for regular maintenance or noticing performance changes, you can schedule either our £120 Standard Service or £265 Full Service through our secure booking portal.
Once you’ve booked, we’ll send you a confirmation email right away.
On the day of service, you’ll receive a handy SMS link to track our van in real-time.
After we’re done, we’ll email your digital service certificate – it’s that easy!
Our team of Gas Safe registered engineers brings over 25 years of experience to every service appointment.
2. On Our Way Text
To make your appointment day stress-free, you’ll receive a friendly text message when our engineer hits the road. This handy message includes a secure link that lets you track our van in real-time, so you’ll know exactly when we’ll arrive at your doorstep.
We know how important boiler maintenance is to you, and we want to make the service frequency as convenient as possible.
That’s why we’ve made tracking our arrival simple and transparent. No more wondering if we’re running late or spending your morning waiting around!
When you get our text, you can finish up whatever you’re doing, knowing precisely when to expect us. It’s just one more way we’re making your boiler service experience smoother and more predictable.
For peace of mind, our standard service inclusions cover everything from gas pressure checks to comprehensive leak inspections during your appointment.
3. Service Your Boiler & Issue Your Certificate
A smooth, hassle-free boiler service starts with our straightforward booking process.
Once we arrive, we’ll conduct a thorough inspection, following manufacturer-specific guidelines to guarantee your boiler gets the exact maintenance it needs for peak performance.
We’re big believers in boiler efficiency improvements, so we’ll clean essential components, check gas pressures, and analyse combustion levels.
You’ll love watching your energy bills drop! During our visit, we’ll share practical boiler maintenance tips to help you keep your system running smoothly between services.
When we’re finished, you’ll receive your service certificate straight to your inbox – no paper to file away.
We’ll also explain any findings in plain English and answer any questions you might’ve about your heating system’s health.
For added convenience, we can perform unvented cylinder servicing alongside your boiler maintenance to ensure your entire heating system operates at maximum efficiency.
Book Your Mottingham Boiler Service Online Today

Ready to book your boiler service in Mottingham? Save time by scheduling your appointment through our easy-to-use online booking system.
Simply click here to book your boiler service. Once booked, you’ll receive instant confirmation and a real-time tracking link on the day of service, so you’ll know exactly when we’ll arrive.
Our online booking platform is available 24/7, allowing you to schedule at your convenience, even outside of our regular business hours.
All services are performed by our Gas Safe registered professionals with over 25 years of heating engineering experience.
Customer Reviews

See what Thames Boiler customers are saying about our services in their genuine reviews.
Benefits of Servicing Your Boiler

We’re passionate about helping you get the most from your boiler through regular servicing, which keeps your home safe and your energy bills lower.
When we service your boiler, we’ll check for any dangerous carbon monoxide leaks and guarantee it’s running at peak efficiency, saving you money on your monthly fuel costs.
Our Gas Safe registered engineers have been providing reliable boiler maintenance since 2002, ensuring all work meets strict safety standards.
Keep your boiler safe
Taking care of your boiler isn’t just about keeping it running – it’s about protecting your family’s safety and comfort throughout the year.
We understand boiler safety is a top priority for every homeowner, which is why our Gas Safe registered engineers thoroughly check for carbon monoxide and gas leaks during every service.
When you’re part of our Thames Boilers family, we’ll make sure your boiler gets the attention it needs.
During our extensive service, we’ll test gas pressures, inspect flues, and clean crucial components to keep everything running safely.
We’ll even check your expansion vessel and magnetic filter, catching potential issues before they become dangerous problems.
Think of servicing importance like your annual health check-up – it’s essential for preventing serious issues and keeping your home warm and secure.
Regular maintenance becomes even more critical during winter gas safety when households rely more heavily on their heating systems.
Save money on fuel bills
Beyond keeping your home safe, a well-maintained boiler can put more money back in your pocket.
When we service your boiler, we restore its combustion efficiency, which means you’ll use less gas to heat your home. Think of it like giving your car a tune-up – everything just runs better.
During our standard service, we’ll analyse your boiler’s performance and clean essential components like the magnetic filter and condensate trap.
If you opt for our full service, we’ll go even deeper, cleaning the heat exchanger and testing your system’s water quality.
These steps help maintain peak energy efficiency throughout the year.
Regular maintenance can deliver energy savings of 31% through optimized heating performance and efficiency.
Spot boiler problems early
Just as regular check-ups help doctors catch health issues before they become serious, annual boiler servicing lets us spot potential problems while they’re still small and manageable.
When we perform your service, we’re looking for early warning signs that could lead to common boiler issues down the road.
We’ll check for things like sludge buildup, poor water chemistry, and component wear – all of which can cause expensive breakdowns if left unchecked.
During our thorough inspection, we’ll test gas pressures, analyse flue gases, and examine critical parts like the heat exchanger and burner.
These boiler maintenance tips aren’t just about preventing future headaches – they’re about giving you peace of mind, knowing your heating system is running safely and efficiently all year round.
Two Types of Boiler Service Available in Mottingham

At Thames Boilers, we’re proud to offer two distinct service options to keep your home’s heating system running smoothly in Mottingham.
Our Standard Service at £120 is perfect for newer boilers or those serviced recently, while our thorough Full Service at £265 provides deeper maintenance for older systems.
We’ll help you choose the right service based on your boiler’s age, condition, and service history, ensuring you get exactly what your system needs.
Standard Boiler Service
Thames Boilers offers two distinct service packages in Mottingham to keep your boiler running safely and efficiently.
Our Standard Service, priced at £120, is perfect for newer boilers under three years old or those that have been thoroughly serviced recently.
During this thorough check, we’ll analyse your boiler’s flue gases, test gas pressure and flow, and inspect all internal components.
We’ll also clean your condensate trap and magnetic filter, check your expansion vessel, and perform a detailed gas leak test.
While this service helps prevent common boiler issues, it’s essential to mention that it’s purely maintenance – if we spot any existing problems, we’ll need to schedule a separate repair visit.
You’ll receive a digital service certificate by email once we’re done.
Full Boiler Service
While newer boilers can get by with a Standard Service, older systems in Mottingham need our extensive Full Service package, priced at £265.
We’ll do everything in a Standard Service, plus we’ll take extra steps to boost your boiler efficiency through thorough maintenance.
We’ll remove and clean the burner, thoroughly clean the heat exchanger, and replace essential gaskets and seals.
We’ll also test your system’s water quality and bleed your radiators to guarantee peak performance.
Think of it as a spa day for your boiler – it’ll come out feeling refreshed and running smoothly!
Our detailed report will include practical maintenance tips and recommendations to keep your system running efficiently between services.
It’s the perfect choice for boilers over three years old or those without a recent deep clean.
Which Boiler Service Is Best For You?

Deciding between a Standard or Full boiler service doesn’t have to be complicated.
For newer boilers under three years old, or those that have had a recent strip-service, our £120 Standard service will help maintain boiler efficiency and guarantee safe operation. We recommend this annually to keep your warranty valid and catch any small issues early.
If your boiler is older than three years or hasn’t had a detailed clean in a while, we’d suggest our £265 Full service. This extensive option includes a deep clean of internal components and system water testing – perfect for maintaining peak performance.
The service frequency depends on your boiler’s age and condition, but we’ll always give you honest advice about which option suits your needs best.
Boiler Brands We Can Service in Mottingham

At Thames Boilers, we’re experts at servicing all major domestic boiler brands in Mottingham, including Vaillant, Worcester Bosch, and Viessmann.
We’ve also got extensive experience working with popular manufacturers like Baxi and Potterton, ensuring your boiler gets the care it needs regardless of its make.
Whether you’ve got a brand-new system or a trusted older model, we’ll keep your home warm and cosy with our professional servicing expertise.
Vaillant
As one of the most trusted boiler brands in Europe, Vaillant represents a significant portion of our service work in Mottingham.
We’ve seen firsthand how Vaillant innovations have revolutionised home heating, especially with their smart control systems that let you manage your heating from your phone.
We’re particularly impressed with Vaillant efficiency ratings, which consistently help our customers save on their energy bills.
Their ecoTEC range, which we regularly service, combines reliable performance with excellent energy efficiency.
When you choose us for your Vaillant boiler service, you’re getting an engineer who understands these systems inside and out.
We’ll make sure your Vaillant keeps running at its best, protecting your investment and maintaining its impressive efficiency levels for years to come.
Worcester Bosch
When it comes to servicing Worcester Bosch boilers in Mottingham, we’ve got extensive hands-on experience with their complete product line.
We recognise why so many local homeowners trust Worcester Bosch’s reliability for their heating needs, and we’re here to help maintain that dependable performance.
As certified specialists, we’ve worked with everything from their classic Greenstar range to their latest smart-enabled models.
Worcester Bosch quality shows in every component, which is why we use genuine parts for all our servicing work.
You’ll find our expertise matches the premium standards you’d expect for your Worcester Bosch boiler, and we’ll keep it running at peak efficiency.
Trust us to treat your Worcester like it’s our own, with the attention to detail that’s made us Mottingham’s go-to heating experts.
Viessmann
German engineering excellence comes to life in Viessmann boilers, and we’re proud to be your local Viessmann specialists in Mottingham.
We understand these remarkable boilers inside and out, and we’re here to help you get the most from your Viessmann system through our expert servicing.
When it comes to Viessmann models, you’ll find they’re built to last, with many featuring stainless steel heat exchangers that resist corrosion.
The Viessmann benefits are clear: exceptional efficiency, reliable performance, and smart heating controls that put you in charge of your home’s comfort.
We’ve worked with countless Viessmann boilers in Mottingham homes, and we can tell you firsthand – they’re a perfect blend of innovation and dependability.
Trust us to keep your Viessmann running at its best with our thorough servicing approach.
Baxi
British engineering prowess shines through in every Baxi boiler we service in Mottingham.
We’re always impressed by the Baxi features that make these units stand out, from their user-friendly interfaces to their efficient heating capabilities. If you’ve got a Baxi in your home, you’re part of a community that values reliable British craftsmanship.
We’ve worked with countless Baxi boilers over the years, and their reliability is something we can vouch for.
They’re built to last, and with regular servicing, they’ll keep your home warm and cosy for years to come.
When you choose us to service your Baxi, you’re getting expertise from engineers who understand every aspect of these great British-made systems.
We’ll make sure your Baxi continues performing at its best, giving you the comfort you deserve.
Potterton
As another stalwart of British heating innovation, Potterton boilers have earned their place in countless Mottingham homes through decades of reliable performance.
We’ve worked extensively with various Potterton models, from their classic Promax to their modern Gold series, and we’re always impressed by their build quality.
Our team is well-versed in Potterton maintenance, ensuring your boiler runs at peak efficiency throughout the year.
We recognise that your Potterton isn’t just another appliance – it’s the heart of your home’s comfort system.
Whether you’re dealing with an aging unit that needs some TLC or you’re looking to maintain your newer model’s warranty, we’ll treat your Potterton with the expert care it deserves.
Trust us to keep your home warm and comfortable, just as we’ve done for many of your neighbours.
Ideal
When it comes to renowned boiler manufacturers in Mottingham, Ideal stands proudly alongside Potterton in delivering reliable heating solutions.
We’ve maintained countless Ideal boilers over the years, and our customers consistently share stories about their long-lasting performance and efficiency.
Here’s a valuable boiler maintenance tip we’ve learned from servicing Ideal systems: regular annual checks help prevent those frustrating winter breakdowns.
We’ve seen firsthand how well-maintained Ideal boilers can serve families for many years, keeping homes cosy and warm throughout the seasons.
As your local heating experts, we’re always excited to share our knowledge about Ideal’s innovative features.
They’re designed with user-friendly controls, making it easier for you to manage your home’s heating while maintaining peak efficiency levels.
Alpha
The trusted Alpha boiler brand has earned its place among our specialties in Mottingham, where we’ve assisted countless homeowners keep their heating systems running smoothly.
As your local boiler experts, we understand all the ins and outs of Alpha’s innovative technology and can tackle common boiler issues head-on.
We’re happy to share our favourite boiler efficiency tips to help you get the most from your Alpha system. From routine maintenance checks to addressing those mysterious clicking sounds (don’t worry, they’re usually not as scary as they seem!), we’ve your back.
Our team stays up-to-date with Alpha’s latest developments, ensuring we provide the best possible service for your home heating needs. Trust us to keep your Alpha boiler performing at its peak throughout the year.
Glow Worm
For decades, Glow Worm boilers have warmed countless homes in Mottingham with their reliable heating solutions.
We’re proud to service these trusted systems, helping homeowners maintain their boiler efficiency and comfort throughout the year.
When you choose us for your Glow Worm boiler service, you’re getting more than just a maintenance check.
We’ll thoroughly inspect every component, clean essential parts, and guarantee your system is running at peak performance.
It’s like giving your boiler a spa day – but with more wrenches and fewer cucumber slices!
Our team knows Glow Worm systems inside and out, and we’re always excited to help our Mottingham neighbours keep their homes cosy.
We’ll make sure your boiler continues delivering the warmth and reliability you’ve come to expect.
Vokera
Trusted by homeowners across Mottingham, Vokera boilers have established themselves as reliable heating companions that keep families warm and comfortable year-round.
At Thames Boilers, we’re well-versed in servicing all Vokera models, from the compact Compact A to the high-efficiency Vision range.
We’ve found that regular Vokera maintenance is key to keeping your heating system running smoothly. Our team knows these systems inside and out, and we’ll make sure yours stays in top condition.
If you’re experiencing any issues with your Vokera boiler, we’re here to help – from minor adjustments to thorough servicing.
When it comes to Vokera boilers, you can count on us to provide the expert care your system needs. We’ll treat your boiler like it’s our own, ensuring it continues to serve you reliably for years to come.
Frequently Asked Questions About Boiler Servicing in Mottingham

We understand you’ve got questions about boiler servicing, and we’re here to provide clear, straightforward answers.
If your boiler’s already showing signs of trouble, you’ll want to book a repair visit rather than a service, since servicing is preventive maintenance rather than fault-fixing.
As a Gas Safe registered company with over 25 years of experience, we’re fully qualified to work on your boiler, and we’ll be upfront about any additional visits that might be needed if new issues develop after your service.
My boiler has a fault – should I book a service?
When your boiler’s acting up, booking a service might seem like the logical first step – but it’s not always the right move.
Our services are designed for preventive maintenance, not fixing existing problems, so if you’re experiencing issues, you’ll need to book a separate repair visit.
Think of it like a car’s MOT – it’s meant to check everything’s working properly and prevent future problems, not fix current ones.
Just as you wouldn’t book an MOT to fix a flat tyre, you shouldn’t book a service to fix a faulty boiler.
If you’re dealing with common boiler issues, we’ll need to diagnose and repair the problem first.
Once your boiler’s running smoothly again, then we can schedule a proper service to keep it that way.
If my boiler develops a fault after a service, do I need to pay for another visit?
Just like a car’s MOT doesn’t guarantee your vehicle won’t break down afterwards, a boiler service can’t prevent every future problem.
While our thorough service helps maintain your boiler’s efficiency and safety, it’s important to understand its service limitations.
If your boiler develops a fault after we’ve completed a service, you’ll need to book a separate fault diagnosis visit. This is because servicing is preventive maintenance, focusing on cleaning, checking, and testing key components.
It’s different from repair work, which addresses specific problems.
Think of it this way – when your dentist gives you a checkup, they’re making sure everything’s clean and working well.
But if you develop a cavity later, you’ll need another appointment. The same principle applies to your boiler.
Are you Gas Safe Registered?
Moving from repair visits to an equally important safety topic – yes, Thames Boilers holds full Gas Safe registration, the UK’s official gas safety certification.
We take Gas Safety incredibly seriously because working with gas isn’t something to cut corners on. Our founder, George Lane, brings over 25 years of experience working exclusively with domestic gas boilers, and we’re proud to maintain the highest safety standards in everything we do.
In fact, you’ll never find us working on commercial, LPG, or oil systems – we stick to what we’re familiar with to guarantee your complete safety and peace of mind.
About Thames Boilers

Family-run Thames Boilers has been serving homeowners across Kent since 2017, bringing over 25 years of heating expertise to every job we do.
We’ve built our reputation on delivering personalised service and honest advice, helping countless families stay warm and comfortable in their homes.
Our Thames Boilers history reflects our commitment to customer satisfaction, which is why we’ve maintained a perfect 5-star rating from our clients.
We’ve made it easier than ever to work with us through our online booking system, and we’ll even send you real-time tracking updates when we’re on our way.
We’re proud to be your local heating experts, focusing exclusively on domestic gas boilers to guarantee we deliver the specialised service you deserve.
We Cover Mottingham And The Surrounding Area

We provide thorough boiler servicing across Mottingham and within a 5-mile radius, covering numerous locations throughout South East London and North Kent. Our service area includes:
- Eltham
- Sidcup
- Grove Park
- Lee
- Chislehurst
- Bromley
- Horn Park
- New Eltham
- Downham
- Grove Park
- Sundridge
- St Paul’s Cray
- Middle Park
- Elmstead
- Blackfen
- Kidbrooke
- St Mary Cray
- Lewisham
- Catford
- Bickley
All these locations receive the same high standard of boiler servicing, with prompt response times and professional expertise.
Our engineers are familiar with the local area’s infrastructure and heating systems commonly found in these neighbourhoods.
Book Your Mottingham Boiler Service Online Today

Ready to book your boiler service in Mottingham? It takes just a few clicks to secure your appointment through our convenient online booking system.
Book your boiler service now and receive instant confirmation. You’ll also get real-time tracking updates when we’re on our way to your property.
Our booking system is available 24/7, allowing you to schedule at your convenience, even outside of our regular business hours.