We're Thames Boilers, your trusted local heating experts in Chatham since 2017, offering fast and reliable boiler repairs when you need them most. Our Gas Safe registered engineers bring over 20 years of hands-on experience fixing all major brands, including Worcester Bosch, Vaillant, and Viessmann. We've earned our 5-star reputation through transparent pricing, clear communication, and exceptional customer service across Central Chatham, Rochester borders, and surrounding areas. Whether you're dealing with low pressure, no hot water, or strange noises, we'll diagnose and fix your boiler efficiently. Let us show you why we're Chatham's go-to choice for keeping homes warm and comfortable.
Why Choose Thames Boilers To Repair Your Boiler?

Thames Boilers' expertise in boiler repairs stems from over two decades of hands-on experience.
We're your local heating experts in Chatham, committed to delivering reliable repairs and sharing valuable boiler maintenance tips that keep your system running efficiently.
Here's why homeowners trust us with their boiler repairs:
- Our Gas Safe registration guarantees your family's safety comes first
- We provide honest, straightforward advice without pushy sales tactics
- We offer clear pricing and explain all repair options thoroughly
- Our online booking system lets you schedule repairs at your convenience
- We share energy efficiency improvements that can lower your bills
When you choose Thames Boilers, you're not just getting a repair service – you're partnering with experienced professionals who understand your home's heating needs.
We're here to help you make informed decisions about your boiler's maintenance and repair.
Our technicians specialize in servicing leading brands including Worcester Bosch Greenstar and other major domestic combination boilers.
Customer Reviews

See why homeowners across Kent trust us with their boiler repairs – check out our 5-star customer reviews and discover why we're Chatham's most reliable choice for boiler services. Our customers consistently praise our fast response times when they need emergency repairs.
Book Your Chatham Boiler Repair Online Today

Ready to get your boiler repaired in Chatham?
Book your appointment online in just a few clicks and receive instant confirmation. Our simple booking system lets you choose a time that works best for you, and you'll get real-time tracking when we're on our way.
Gas Safe registered and with over 25 years of experience, we'll get your heating back up and running with minimal hassle.
Available Monday to Friday, 9am to 5pm, serving homeowners across Chatham and surrounding Kent areas.
Online job booking makes scheduling your boiler repair quick and convenient.
Boiler Repairs Questions & Answers

It's understood you've got questions about getting your boiler fixed in Chatham, from costs and timeframes to guarantees and booking the right service.
As a Gas Safe registered company operating in Chatham, we're here to answer your most common questions about boiler repairs clearly and honestly.
Let's tackle the key questions we often hear from homeowners like you who need their boiler repaired quickly and reliably.
We handle repairs for all major brands including Vaillant and Worcester among many others, ensuring comprehensive coverage for Chatham residents.
How much will it cost to fix my boiler?
Determining precise boiler repair costs can be challenging without a diagnostic visit. However, we can give you a general idea of what to expect when estimating repair expenses.
Some fixes might only need an hour of labour, while others could require both time and replacement parts. For simpler repairs requiring just labour, you'll only pay our standard hourly rate.
When it comes to more complex issues, like replacing major components such as pumps, fans, or circuit boards, costs typically range from £150 to £350 for parts, plus 2-3 hours of labour.
During our initial diagnostic visit, we'll thoroughly examine your boiler and provide you with a clear breakdown of all necessary repairs and their associated costs. This way, you'll know exactly what you're paying for.
Our team specializes in fixing major boiler brands including Worcester Bosch, Vaillant, Glow Worm, and Viessmann.
How soon can you fix my boiler?
Booking availability for boiler repairs varies throughout the year based on seasonal demand.
During summer months, when common boiler issues are less frequent, we can usually get to you within a day or two. However, as temperatures drop and heating systems work harder, our schedule fills up quickly, and you might need to wait a couple of weeks for an appointment.
While you're waiting, we're happy to share some boiler maintenance tips to help prevent future problems. You can check your boiler's pressure, verify radiators are bled properly, and keep the area around your boiler clear.
For the most up-to-date availability and to secure your preferred time slot, head over to our online booking system at booking.thamesboilers.co.uk. We'll do our best to accommodate your schedule!
Our Gas Safe registered engineers provide reliable repairs backed by over 25 years of experience in Kent.
What guarantees do you offer on boiler repairs?
All boiler repairs come with a 12-month guarantee on replaced parts only.
When we fix your boiler, we want you to have peace of mind about the parts we've installed. If any part we've replaced fails within that 12-month period, we'll replace it completely free of charge.
It's important to understand our guarantee details and warranty coverage, though.
While we stand behind the parts we replace, other components that might develop issues after our repair aren't covered under this guarantee.
For example, if we replace your pump and later your fan develops a fault, you'll need to book a separate repair visit for that new issue.
We believe in being upfront about these terms so you know exactly what to expect.
Our team's 25 years of experience in heating engineering ensures every repair is completed to the highest professional standards.
Should I book a boiler service or a repair?
While our repair guarantees protect your replaced parts, knowing whether to book a service or repair in the first place can save you time and money.
When it comes to common boiler issues, the distinction is pretty straightforward.
If your boiler isn't working properly – perhaps you've got no hot water, your heating isn't coming on, or you're hearing strange noises – you'll want to book a repair visit.
A service, on the other hand, is part of your regular boiler maintenance tips toolkit, like an annual health check-up for your heating system.
Think of it this way: if your car won't start, you wouldn't book it in for a routine service – you'd need a repair first.
The same principle applies to your boiler.
For unvented hot water cylinders, digital service certificates are provided after each maintenance visit to maintain proper documentation of your system's health.
Are you gas safe registered?
Safety should always come first when working with gas appliances, which is why we're proud to be fully Gas Safe registered.
This registration isn't just a fancy certificate on our wall – it's your guarantee that we're legally qualified and regularly assessed to work on gas boilers in your home.
When it comes to boiler maintenance and repairs, you can't be too careful with gas safety.
That's why we take our Gas Safe registration seriously, keeping up with the latest training and safety protocols.
We display our Gas Safe ID card on every visit, and you're welcome to verify our credentials on the official Gas Safe Register website.
It's all part of giving you complete peace of mind when we're working on your heating system.
Regular winter servicing by qualified gas engineers is essential for maintaining both the safety and efficiency of your heating system.
About Thames Boilers

Based in Greenhithe, Kent, we're a dedicated domestic boiler specialist serving local homeowners since 2017. Our Thames Boilers history began when our founder, George Lane, brought his 25 years of heating expertise to the area, starting what would become a trusted name in local boiler services.
We've built our reputation on providing exceptional customer service that makes you feel like part of our family. From our easy-to-use online booking system to our real-time tracking updates, we're committed to making your experience with us as smooth as possible.
We're not just another faceless company – we're your neighbours who understand your needs. When you choose Thames Boilers, you're choosing a team that treats your home with the same care and attention we'd give our own. Our service coverage areas extend throughout Kent and surrounding regions to provide comprehensive boiler solutions.
Areas In & Around Chatham We Serve

From our base in Greenhithe, we've expanded our boiler services to reach homes throughout Chatham and its surrounding areas.
We're proud to serve these vibrant Chatham neighbourhoods, each with its unique charm and local amenities. Whether you're near the historic dockyards or tucked away in one of the quieter residential streets, we're here to keep your home warm and cosy.
Our service areas include:
- Central Chatham, including the bustling town centre and surrounding estates
- Rochester borders, where historic meets modern living
- Gillingham edges, perfect for families and professionals
- Walderslade and its peaceful suburban streets
- Lordswood, known for its friendly community spirit
We know these areas like the back of our hand, making it easy for us to reach you quickly when you need us.
Boilers We Can Repair In Chatham

At Thames Boilers, we're experts at repairing a wide range of domestic gas boilers throughout Chatham, including popular brands like Vaillant, Worcester Bosch, Glow Worm, and Viessmann.
We'll focus specifically on your combi boiler's needs, whether it's making strange noises, losing pressure, or not heating your water properly.
Our Gas Safe registered engineers bring over 25 years of experience to every repair job, ensuring your boiler gets back to working efficiently and reliably.
Combi Boiler Repairs in Chatham
Thames Boilers specialises in repairing domestic combi boilers throughout Chatham, addressing common issues like pressure loss, water leaks, thermostat malfunctions, and kettling problems.
We're proud to help our neighbours maintain their combi boilers for peak energy efficiency and performance. When you're experiencing issues with your boiler, we'll diagnose the problem quickly and provide honest solutions.
Regular combi boiler maintenance helps prevent unexpected breakdowns and keeps your system running smoothly.
- We'll check your boiler's pressure and fix any leaks
- We'll clean or replace parts affected by limescale buildup
- We'll repair or replace faulty thermostats and controls
- We'll investigate unusual noises and resolve the root cause
- We'll guarantee your condensate pipe is working properly
Contact us today to schedule your combi boiler repair in Chatham.
Vaillant Boiler Repairs in Chatham
Dealing with a troublesome Vaillant boiler in Chatham? We've got years of experience fixing common Vaillant issues, and we're here to help get your heating back on track. Our knowledge of Vaillant maintenance tips helps us diagnose and repair problems quickly and effectively.
Common Vaillant Problems | Our Solutions |
---|---|
Low Water Pressure (F22) | We'll check for leaks and restore pressure |
Flame Failure (F27-F29) | We inspect ignition components and fix faults |
Fan Issues (F32, F37, F38) | We clean or replace faulty fan units |
When it comes to Vaillant boilers, we recognise how frustrating breakdowns can be. That's why we focus on getting to the root cause of issues, whether it's a faulty gas valve, circulation problems, or sensor malfunctions. Book your repair online today, and we'll have your Vaillant boiler running smoothly again.
Worcester Bosch Boiler Repairs in Chatham
Worcester Bosch's reputation for reliability doesn't make them immune to occasional problems. When you're facing issues with your Worcester boiler, we're here to help with expert troubleshooting tips and boiler maintenance advice that'll keep your system running smoothly.
Common Issue | What You Might Notice | Our Solution |
---|---|---|
Low Pressure | Heating isn't working properly | We'll check for leaks and repressurise your system |
No Hot Water | Taps running cold | We'll inspect thermostats and gas supply |
Strange Noises | Banging or gurgling sounds | We'll remove trapped air and check for kettling |
We're just a call away when you need Worcester boiler repairs in Chatham. Our team understands these systems inside and out, and we'll get your heating back up and running with minimal fuss. Remember, regular maintenance can prevent most common issues!
Glow Worm Boiler Repairs in Chatham
A glowing hearth starts with a well-maintained Glow Worm boiler. We're here to help you tackle common Glow worm issues that might be giving you trouble in your Chatham home. With our expertise, we'll keep your boiler running smoothly through every season.
Fault Code | What It Means | What We'll Do |
---|---|---|
F16 | Flame Detection Issue | Clean/Replace Probe |
F22 | Low Water Pressure | Pressurise System |
F28 | Ignition Problems | Check Gas Supply |
F1/F4 | Frozen Condensate | Thaw & Insulate |
F13 | Circuit Board Issues | Diagnose & Repair |
We understand how frustrating boiler problems can be, which is why we've made our Glow worm maintenance tips accessible through our online booking system. Whether it's a strange noise or an error code, we'll diagnose and fix your Glow Worm boiler with the care it deserves.
Viessmann Boiler Repairs in Chatham
Maintaining your Viessmann boiler's ideal performance requires expert knowledge of common fault codes and repair solutions. We've handled countless Viessmann repairs in Chatham, and we're here to help you comprehend what might be going wrong with your system. Here's a quick guide to some common issues we encounter:
Fault Code | What It Means | What We'll Do |
---|---|---|
F2 | Flame Loss | Check gas supply and ignition |
A3 | Overheating | Clear scale, restore circulation |
F4 EE | Frozen Condensate | Thaw pipe, prevent future freezing |
A6 | No Ignition | Test gas valve and igniter |
F1 | Burner Blocked | Clean and restore proper function |
When it comes to Viessmann troubleshooting, we realise how frustrating these issues can be. That's why we offer straightforward boiler maintenance tips and reliable repairs to keep your heating system running smoothly all year round.
Baxi Boiler Repairs in Chatham
When your Baxi boiler needs expert attention in Chatham, we're ready to diagnose and repair common issues like low pressure problems, ignition failures, and error code troubles. Our Baxi troubleshooting guide helps us quickly identify the root cause of your boiler's problems, whether it's a frozen condensate pipe in winter or strange noises from your heating system.
Common Issue | Typical Symptoms | Our Solution |
---|---|---|
Low Pressure | Gauge below 1 bar | Pressure top-up & leak check |
No Hot Water | Inconsistent temperature | Diverter valve inspection |
Lockouts | Error code E110 | System reset & component check |
Frozen Pipe | Error code E133 | Safe pipe thawing |
Strange Noises | Banging sounds | System bleeding & cleaning |
Following our Baxi maintenance tips can help prevent future issues and keep your heating running smoothly all year round.
Potterton Boiler Repairs in Chatham
Just as we expertly handle Baxi systems, our team brings the same level of skill to Potterton boiler repairs in Chatham. When it comes to Potterton troubleshooting, we've seen it all – from cycling fan issues to those frustrating frozen condensate pipes that always seem to strike during the coldest nights!
Common Issue | What You'll Notice | Our Solution |
---|---|---|
Low Pressure | Error code E119 | We'll check for leaks and repressurise |
No Hot Water | System won't heat | We inspect diverter valve and clean heat exchanger |
Strange Noises | Kettling sounds | We'll perform chemical flush to remove limescale |
Looking for boiler maintenance tips? We're here to help keep your Potterton running smoothly with regular servicing and expert repairs. You can trust our Gas Safe registered team to diagnose and fix issues quickly, just like we've done for countless satisfied homeowners across Kent.
Ideal Boiler Repairs in Chatham
Thames Boilers brings expert care to every Ideal boiler repair in Chatham, handling everything from simple maintenance to complex fault diagnosis. We're well-versed in common boiler issues like L2 error codes, blank displays, and those pesky kettling noises that keep you up at night.
Problem | What You'll Notice | What We'll Do |
---|---|---|
Low Pressure | Error code F1 | Refill system, check for leaks |
No Ignition | Error code L2 | Clean sensors, test gas supply |
Strange Noises | Gurgling sounds | Clear blockages, check trap |
No Heat | Cold radiators | Bleed system, verify settings |
When it comes to boiler maintenance tips, we'll show you how to spot early warning signs and keep your Ideal boiler running smoothly. It's like having a friendly neighbour who happens to be a heating expert right around the corner!
Alpha Boiler Repairs in Chatham
Having mastered Ideal boilers, we're equally skilled at handling Alpha boiler repairs throughout Chatham. When it comes to Alpha boiler troubleshooting, we have you taken care of with solutions for all common faults. From pesky pressure issues to mysterious error codes, our expertise helps keep your home warm and comfortable.
Error Code | Common Faults | Our Solution |
---|---|---|
E10 | Overheating | System inspection & flow check |
E20 | High Pressure | Pressure adjustment & vessel check |
E34 | Low Pressure | System refill & leak detection |
E25 | Dry Fire | Flow sensor analysis & repair |
E28 | Flue Problems | Complete flue inspection |
We'll diagnose your Alpha boiler issues quickly and efficiently, whether it's a simple sensor replacement or a more complex repair. Our team stays up-to-date with all Alpha boiler systems, ensuring you get the most reliable service in Chatham.
Ariston Boiler Repairs in Chatham
Moving on to Ariston boilers, we're fully equipped to handle all repairs and maintenance needs for these systems across Chatham. Our team regularly encounters common Ariston issues and we've got proven solutions for them all. Here's a handy overview of what we typically see and fix:
Error Code | Issue | What We Do |
---|---|---|
108 | Low Pressure | Check for leaks, restore pressure |
5P1, 5P2, A1 | Ignition Problems | Test gas supply, replace parts |
301-307 | PCB Faults | Diagnose and repair electronics |
E34 | Air Pressure Switch | Inspect and replace if needed |
103-107 | Poor Circulation | Clear blockages, bleed radiators |
Looking for Ariston boiler maintenance tips? We recommend regular servicing to prevent these issues. Just like your car, your boiler needs consistent care to keep running smoothly and efficiently.
Biasi Boiler Repairs in Chatham
After mastering Ariston systems, we're equally skilled with Biasi boiler repairs throughout Chatham. When it comes to Biasi boiler maintenance, we have you taken care of with expert solutions for common problems like low pressure (ER04) and overheating (ER02). Our Biasi boiler troubleshooting experience means we can quickly diagnose and fix issues that might be keeping you from staying warm.
Issue | Error Code | Common Cause | Our Solution |
---|---|---|---|
No Heat | ER01 | Ignition Failure | Flue Check & Clean |
Overheating | ER02 | Pump Issues | System Reset & Repair |
No Hot Water | ER07 | Diverter Valve | Valve Replacement |
Leaking | ER04 | Joint Failure | Seal Replacement |
Vokera Boiler Repairs in Chatham
Diagnosing Vokera boiler issues requires specialised expertise, which is why we're equipped to handle all common faults in Chatham. While Vokera efficiency is well-known, even these reliable units can experience problems. Our team's extensive experience means we can quickly identify and resolve issues that might be affecting your home's comfort.
Fault Type | Common Causes | Our Solution |
---|---|---|
Ignition Failure | Gas supply issues | Full system check |
Low Pressure | System leaks | Pressure restoration |
Frozen Pipes | Winter weather | Emergency thawing |
Error Codes | Sensor problems | Digital diagnosis |
When you're facing any common faults with your Vokera boiler, we're just a call away. We recognise how disruptive heating problems can be, so we'll work efficiently to get your system back up and running, ensuring your home stays warm and comfortable.
Keston Boiler Repairs in Chatham
Throughout Chatham, Keston boilers remain a reliable choice for many homeowners, though they can develop specific issues that require expert attention. We are here to help with expert Keston boiler troubleshooting and maintenance, addressing common problems that might be affecting your system's performance.
Common Issue | Error Code | Our Solution |
---|---|---|
Ignition Problems | E01 | Professional gas supply check |
Water Pressure | E37/F1 | System pressure adjustment |
Fan Failures | E05 | Component inspection/repair |
When you're facing issues with your Keston boiler, we'll thoroughly diagnose the problem and provide clear solutions. Our experience with Keston systems means we can quickly identify and fix everything from flame detection problems to control board issues. We recognise how disruptive boiler problems can be, which is why we prioritise efficient, lasting repairs that keep your home warm and comfortable.
Common Boiler Problems In Chatham

We're familiar with the boiler problems that Chatham residents face, from having no hot water despite working heating to dealing with dropping pressure gauges.
As your local experts, we've seen these common issues hundreds of times, including combi boilers running hot and cold or mysterious fault codes appearing on display screens.
When you spot these problems, don't worry – we'll help you understand what's going on and get your heating back to normal quickly.
No hot water but heating is working
One of the most frustrating boiler problems you'll encounter is having your heating work perfectly while getting no hot water from your taps.
We recognise how disruptive this can be to your daily routine, and it's one of the common heating issues we regularly fix in Chatham homes.
When it comes to boiler troubleshooting tips, the cause often depends on your type of system.
If you've got a combi boiler, we typically find it's either a faulty flow switch or a stuck diverter valve causing the problem.
For conventional boilers, the usual suspect is a faulty motorised valve.
While these issues might sound complex, they're actually quite common and straightforward for our experienced engineers to fix.
We'll get your hot water flowing again quickly, so you can get back to your normal routine.
Hot water is working, but radiators are not heating up
While having no hot water can be frustrating, the opposite problem can be just as disruptive – when your radiators won't heat up despite having working hot water.
When we encounter this common heating system issue during radiator troubleshooting in Chatham homes, we usually find it's related to one of two things.
For combi boilers, it's often a stuck diverter valve that's not directing hot water to your radiators.
In conventional boilers, a faulty motorised valve is typically the culprit.
However, before assuming the worst, we'd recommend checking two simple things: make sure your programmer is actually set to turn the heating on, and double-check that your room thermostat is turned up high enough.
We often find these quick checks can save you from an unnecessary repair call!
Boiler Pressure gauge keeps going down
A dropping boiler pressure gauge is one of the most common issues we encounter during service calls in Chatham.
When we share boiler maintenance tips with our customers, we always emphasise the importance of monitoring pressure gauge readings, as they can indicate underlying problems that need attention.
If you're noticing your pressure gauge consistently dropping, there's likely a leak somewhere in your system.
During our pressure gauge troubleshooting, we typically check for water escaping from the pressure relief valve outside or look for small leaks around pipes and radiators.
Sometimes, it's as simple as a tiny drip that's causing the issue. In other cases, a faulty expansion vessel might be the culprit.
We recommend keeping an eye on your pressure gauge regularly – it's one of the easiest ways to spot potential problems early.
Hot water on combi boiler runs hot and cold
Throughout Chatham, fluctuating hot water temperature is a frustrating issue we frequently address with combi boilers.
We understand how annoying it can be when you're trying to enjoy a shower, and suddenly the temperature goes from hot to cold. These hot water fluctuations often point to a blocked plate heat exchanger in your combi boiler, which is a common issue we see during our regular combi boiler maintenance visits.
If you're only experiencing this problem with your shower, there's good news – it might just be a faulty shower cartridge that needs replacing.
We've helped many of your neighbours in Chatham resolve similar issues, and we can help you too.
There's a fault code on my boiler
Boiler fault codes can seem like mysterious warnings at first glance, but they're actually helpful diagnostic tools that tell us exactly what's wrong with your boiler.
When you see a code appear on your display, don't panic – it's your boiler's way of communicating with you.
At Thames Boilers, we often recommend a simple first step for fault code troubleshooting: Google your boiler's make and the specific code (for example, "Vaillant F75").
This quick search can give you valuable boiler error explanations before you call us. While some codes indicate minor issues you might resolve yourself, others signal more serious problems that need professional attention.
We're always here to help decode these messages and get your heating system back to perfect working order.
Boiler is making a loud banging sound when it turns on
When your boiler makes loud banging sounds during startup, it's typically warning you about a serious circulation problem.
These boiler noises, often called "kettling," shouldn't be ignored as they can indicate your system isn't moving water properly.
In our experience helping homeowners across Chatham with troubleshooting tips, we've found that a faulty pump is usually the culprit.
However, trapped air in your system or a blocked heat exchanger could also be causing these alarming sounds.
Think of it like a car engine knocking – it's your boiler's way of telling you something's not quite right.
We recommend getting these noises checked promptly, as they can lead to more serious issues if left unaddressed.
While it might be tempting to ignore them, your boiler's health depends on proper circulation.
Book Your Chatham Boiler Repair Online 24/7

Book your Chatham boiler repair at a time that suits you through our 24/7 online booking system.
Get instant confirmation and real-time tracking when our engineer is on the way.
Frequently Asked Questions
How Long Does a Typical Boiler Repair Appointment Take?
We'll typically complete your boiler repair within 1-2 hours during your scheduled appointment. While some fixes might be quick, others could take longer depending on the issue, but we'll keep you informed throughout.
What Payment Methods Do You Accept for Boiler Repairs?
We accept all major credit and debit cards for your convenience. Whilst we don't currently offer financing plans, we'll provide clear pricing upfront so you can feel confident about your payment options before work begins.
Do I Need to Prepare Anything Before the Engineer Arrives?
We'd recommend ensuring clear access to your boiler and removing any nearby items. For your safety and our engineer's efficiency, please keep children and pets away from the work area during the visit.
Can I Get a Quote for the Repair Before Booking?
We'll need to assess your boiler before providing an accurate quote for repairs. Our quote process starts with an initial diagnostic visit, where we'll examine your system and explain what's needed.
Will I Receive a Warranty on Parts Used for Repairs?
Yes, we provide warranty coverage on all parts used in our repairs. We only use high-quality, manufacturer-approved parts, and we'll explain your specific warranty terms before starting any work on your boiler.