Friendly, personal plumbing & heating services across NW London & surrounding areas

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Friendly, personal plumbing & heating services across NW London & surrounding areas

About us

Who we are

We are a small team and so we can promise a personal, honest and reliable service every time. We are gas safe registered and fully qualified and insured.

What we do

We work with many local estate agents, private owners and landlords across NW London and surrounding areas – no job is ever too big or too small!


We’ve been in the gas, heating and plumbing industry since 1983 so you can expect every job to be completed safely and professionally.


Peace of mind

We offer a 12-month guarantee on all parts and labour so you can be worry-free! Longer warranties are also available (subject to manufacturer promotions).

Neil Guerin is a reliable trustworthy contractor. He currently does a lot of work for us and will continue to do so for the foreseeable future. I recommend his work to anyone wishing to use his services.

Andrews Lettings and Management

We have worked with Neil for over 20 years and he is very honest & trustworthy. We would not hesitate to recommend Neil for all your Gas, Heating and Plumbing issues. His knowledge is second to none.

Litchfield's Estate Agents

His work is always done with utmost care and efficiency, I would always recommend him as a dependable plumber. He installed our new shower and my wife is still enthralled with the new shower!

Mr Mike Dite

Boiler services and repairs

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Boiler Installation

We aim to ensure that our customers benefit from the most cost-efficient boilers available and that their hot water system is always functionally sound. We work closely with manufacturers like Viessmann, Worcester Bosch and Valliant to provide up to 10 years warranty on all parts and labour.

We take our work seriously and attention to detail and safety is of the upmost importance. Choosing us to fit your new boiler means you will benefit from our outstanding customer services delivered by our reliable and helpful team. Don’t believe us?

Repairs and servicing

If your boiler is unpredictable, suddenly louder or not heating properly this doesn’t necessarily mean you need to invest in a new one but is definitely something that should be looked at as soon as possible.

Our small highly trained team is adept at quickly identifying the cause of any problems and can then advise you on the best course of action. Once we’ve diagnosed the problem we can repair it using the highest quality parts. Every repair and servicing job completed is covered by our guarantees for your peace of mind.

At the end of the process we’ll also ensure that we carry out all of the necessary tests to ensure your improved boiler is safe and highly efficient. Not convinced to service your boiler?

And more…

We’re also well versed in central heating installation and heating system power flushing (What does this mean?)

Plumbing services

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At Neil Guerin Plumbing & Heating we are experienced in all types of big and small domestic plumbing jobs and take pride in delivering our customers a service that is second to none, every time (hear from our happy customers).

Some of the jobs we regularly carry out are:

  • General plumbing tasks
  • Burst pipes and leaks
  • Overflows
  • Pumps
  • Toilets and tap fitting/repairs
  • Replacement ball valves
  • Waste disposal units
  • Saniflows
  • Tanks
  • Hot water problem troubleshooting
  • Immersion heaters and repairs
  • Cylinders (& Mega flo-Unvented Cylinders)
  • Thermostatic radiator valves
  • Replacement radiators
  • Unvented Hot Water Systems
  • Water softener implementation

Bathroom installations & refurbishments

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Maybe your bathroom is looking a little dated or possibly a recent leak has forced you to look at a more long term solution?

If you are planning a bathroom refurbishment we can support you to install the perfect suite. We are equipped to deal with any bathroom renovation project, whether it’s installing a brand new bathroom or replacing a new suite for an old one.

We bring our decades of experience to fit your bathroom exactly as you require it, ensuring safety through secure electrical installation and finishing the project within agreed timescales.

Some of the services we can provide are:

  • Bathroom fitting and installation
  • En-suite fitting and installation
  • Installing heated towel rails
  • Installing designer wet rooms
  • Implementing underfloor heating
  • Shower fitting/bath replacement

Other services

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Landlord safety certificates

By law, under the Gas Safety Regulations 1998, it’s your responsibility as a landlord to get a Gas Safety Certificate every twelve months. You must get this from a Gas Safe Registered engineer for all pipe work, gas appliances and flues installed at your property.

We are fully qualified to undertake these assessments and deliver quick and affordable Gas Safety Certificates across NW London and surrounding areas.

Wireless room thermostats

Thinking about moving into the 21st century and taking your first steps towards a smart home? We have been working with wireless heating systems like HIVE and NEST for many years now and can provide a full service from installing the unit through to helping you get started with the mobile app.

Energy efficiency advice

If you are looking to understand how energy efficient each part of your heating system is currently, we can bring our comprehensive knowledge from years in the industry as well as the latest tools to guide you.

Once we’ve looked at your system we’ll be able to provide practical solutions to improve your efficiency and ultimately save you money on your household bills!

I have known Neil for over 20 years when he first completely re-plumbed my house in Queens Park. Since then he has not only serviced all heating/plumbing appliances but has also re-plumbed my sons’ flat in Kilburn. He is completely reliable, always charming and helpful. I have given him the keys to my house many times when I haven’t been able to get home to let him in. I wouldn’t hesitate to recommend him.

Mrs Sue Arnold

We have used Neil for over 15 years as our sole professional for gas certificates, new boilers, emergency fault finding and maintenance. His work has always been exemplary and we have involved him in a number of new construction projects from the outset. We have no hesitation in recommending Neil and have in fact done so.  I can think of nothing greater which expresses our confidence in his professional competence.

Mr Brian East

Frequently asked questions

What is Gas Safe?
All of our engineers at Neil Guerin Gas, Heating & Plumbing are on the Gas Safe Register and will always have their official identity card to hand when you ask to see it.


Gas Safe Register is the official gas safety organisation in Great Britain, replacing CORGI on 1st April 2009. The Gas Safe Register is responsible for the registration and regulation of gas engineers and membership is mandatory for any company or engineer working with gas appliances.

If you would like to find out more about Gas Safe Register you can visit the Gas Safe Register website.

Should I get my boiler serviced?
If your boiler was fitted over 10 years ago it could be costing you quite a bit extra without you realising it. Older boilers tend to be inefficient and more harmful to the environment, converting as little as 60% of the fuel they use.

Investing in a service, repair or replacement can save you lots of money on your heating costs and provide peace of mind knowing that you are not polluting the environment!

Servicing your boiler keeps it in warranty and lets a Gas Safe engineer spot any potential problems earlier rather than later – if these small defects are fixed as soon as possible this will prevent issues in the future.

We also recommend that condensing boilers have their gas readings checked regularly and adjusted to manufacturer’s instructions. This keeps the boiler burning as efficiently as possible.

Why should I get a water softener fitted?
Homes in the London, Hertfordshire and Bedfordshire areas typically have hard water, which causes lime scale build up in your kitchen and bathroom and leaves your shower screen cloudy! In some cases hard water can also slowly destroy kitchen appliances.

By fitting a water softener, you can remove the hardness from your water supply and resolve all of these issues quickly and easily. This reduces the time and cost of cleaning using multiple products and reduces the depreciation of your kitchen and bathroom appliances. Soft water also makes for a more pleasant shower experience, so why not treat yourself?

Why should I power flush my heating system?

Power flushing is the process of removing sludge and scale deposits from your boiler which in turn improves the energy efficiency, circulation, heating up times and lowers gas consumption resulting in cheaper bills!


Power flushing is recommended by all boiler manufacturers when a new boiler is installed due to poor heating systems with no regular chemical protection. This means that sludge and scale can build up in radiators and pipes around your home.


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Contact us

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Give us a call

07957 421 653

Send us an email

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Find us

39 Bush Grove, Stanmore,
Middlesex, HA7 2DY

Covering NW London & surrounding areas:

Edgware, Harrow, Watford, Queens Park, Hampstead, Kilburn, Finchley, Whetstone, Kingsbury, Kenton, St John’s Wood, Barnet, Bushey, Wilesden, Cricklewood, Hendon, Golders Green, Mill Hill & more.

All of our services:

Bathrooms installations, Boiler installations, Boiler repairs, Boiler replacements, Boiler servicing, Burst pipes, Central heating installations, Energy efficient advice, Gas safety inspections, General plumbing, Heated towel rail fitting, Hob & gas oven fitting, Immersion tank replacements & repairs, Kitchen sinks & waste disposals, Landlord safety certificates, Leaks, Overflows, Power flushing, Pump repairs, Renewable energy products, Shower & bathroom fitting, Tap fitting & repairs, Toilet fitting, Under floor heating and Washing & dishwasher fitting.