Brian Johnstone Heating Specialist

Thank You for Visiting


My name is Brian Johnstone. I started plumbing as a helper to my Dad, locally in Barnet, over 35 years ago. I now can offer you my broad experience in domestic heating and plumbing. You will be in safe and expert hands when you trust your heating and plumbing needs to me. 

I specialize in heating systems and am a registered Gas Safe engineer. I am fully insured for your protection. I have also trained with Vaillant, Veissman and Adey and Honeywell to be a specialist installer for these companies. 

When you decide to undertake heating repairs,upgrades or simple replacements, I will work with you to find the heating solution best suited to your needs and your budget. 

I like to profess my professionalism, my integrity, my honesty and the pride I take in my workmanship. I am a perfectionist and  will pay attention to all details in any work I undertake. 

But my  customers are the best ones to tell you about me, please have a look at  the testimonials on this site. Do feel free to ask me for a reference.

Your other needs

All other plumbing and heating needs, bathrooms, Wundafloor underfloor  heating, Honeywell etc. Feel free to ask for anything heating or  plumbing related. I am also Water certified for water cylinders etc. 


Quality means fixing the problem right the first time.

Not that I don't love seeing my customers, but I never want to hear that my services weren't adequate and the problem's crept back up. But if you  do need me back, please know you can rely on me.

Quality means choosing the right materials

If  you buy it cheap you may have to buy it twice, pay a bit more for  better materials and do it right the first time. I will always quote on the better materials, if you need a cheaper solution please let me know this and I will work with you.


I now have a beautiful new bathroom, thanks to  Brian! He organised all the different trades and gave me the benefit of  his wisdom when deciding what to have and where to put it, so I barely  had to do a thing. The other trades were all lovely people too. I  literally couldn't be happier!

This  company was recommended by a friend, and I wish I'd known of them  earlier. They responded swiftly to my query, then acted efficiently,  competently and at a reasonable price to fix the problem. Heartily  recommend. 

Immediate response, free quote and fast repair. Great, hassle free job. Warm again! 

Thanks Brian

Thank  you Brian, for responding so quickly, yet again, to solve our plumbing  problems. This time to trace and repair two leaks. The job was carried  out quickly and efficiently.

Due to new regs regarding our boiler we were quoted huge prices by other installers when it came to getting a new one fitted. Brian came up with a perfectly simple and affordable solution which passed all the regs, the boiler has been working without incident  for 3 years now and passes gas safety inspections every year.....very  happy. 

It was as if someone had been into my bathroom and  waved a magic wand - all My DIY mistakes had been completely fixed and  there was no debris or mess left over 

Thank you for your careful work, and the cleanup each day was a plus. The fitting of the suite is first class. 

Contact Us

Drop us a line!

  Email  is best, or text my mobile. As with all tradesman who are "on the  tools" telephones can be a necessary distraction. However, I will  endeavour to reply without delay though it may not always be instantly.  Please be patient and if it is an emergency please email the details  with EMERGENCY clearly in the subject line. My office assistant Pat is  available on Thursdays and Fridays on 01442 386 644, and she will  help you schedule the time into my diary that best suits you. 

Brian Johnstone

41 Beverley Gardens, St. Albans, Herts AL4 9BJ



Mon - Friday 8am - 5pm