Carbon Monoxide
Carbon Monoxide is a very highly poisonous gas, read more about the services we offer.
Who Are We?
In the industry since 1997
We are a GAS SAFE highly respected family run gas, plumbing & heating firm established in 2007. We are based in Watford and cover the areas of Ruislip, Pinner, Rayners Lane, Harrow, Northwood, Hayes, Uxbridge, Watford, Rickmansworth, Chorleywood, Kings Langley, Hemel Hempstead and surrounding areas.
We specialise in Landlord Gas Safety Certificates, Electrical PAT Testing, Boiler Servicing, Breakdowns, Power Flushing, Boiler Installations & Plumbing.
We have been qualified in the industry since 1999 and have a wealth of knowledge and training, which is constantly ongoing, to ensure we are a market leader with a wealth of expertise to pass on to our clients. We always keep our clients updated with any new legislation & give impartial advice.
We have built up good relationships with our many clients over the years, and these comprise of Letting Agencies, Housing Associations, Landlords and private clients.
John Mac Heating is a Gas Safe registered organization and is a Member and Registered Plumber of the Institute of Plumbing & Heating Engineering.
Some of our work
And happy clients
Boiler Installation
From installing your new boiler to product recommendations, get in touch today.
Plumbing Work
Having plumbing issues? We're available to help, read more about our plumbing services.
Electric Works
Did you know we cover electrical works too? Read more about what we can do for you.
What they say about us
Happy stories form happy clients
John undertook a gas inspection on my rental property and I found him to be efficient, polite and professional. I would use him again.
Ms Patel
Thank you very much for the “extra mile” you went in fitting a new boiler in our offices. As you know, we are in the [...]
Sobell Rhodes Accountants
Just to say thanks for all your hard work, we are extremely pleased with the service we have received from you, Prices are very reasonable, [...]
Elliot Homes
May I take this opportunity to thank you for the prompt response and excellent work carried out recently at a site in Luton, Bedfordshire. When [...]
Rot & Damp Solutions Ltd
Excellent service. John discovered our boiler was unsafe at an annual service and arranged to install a new one the next day. We are delighted [...]
Pauline G
I can wholeheartedly recommend John Mac Heating. He fixed our boiler earlier today and randomly a completely unrelated incident caused it to stop this [...]
Matthew
Dear John, When my mother phoned me under great stress, as she had no hot water. Which for an 82 year old single woman this [...]
P Smith Roofing Services
I live in Manchester, but own a house in Harrow Weald. Whenever we have a problem, John is always obliging and attends at the earliest [...]
Peter Canter
I have been using John Mac Heating for some 3 years now, initially recommended by an agency in Pinner, and have always been pleased with [...]
Sheila Smith
We have dealt with John Mac Heating for the last 4 years. Our experience of John is of the highest professionalism as well as care [...]
Mrs Moritz
I am a landlord, I have been using John Mac Heating for a number of years now, John is very reliable and friendly, he has [...]
Peter B
Over the time that I have known you, I have been very impressed with your professional, competent, honest and courteous service, and am always grateful [...]
Chista Rajappan
We would like to take a minute to thank you for your rapid response and efficiency on jobs that we ask you to attend. On [...]
Hayley
After experiencing so many problems with my heating and numerous plumbers, I have finally found someone that I can trust to do a competent job. [...]
Fiona
I have used this company in the past & found John Mac to be polite, professional, honest, reliable & reasonably priced….not something you can always [...]
Sean Nolan
I found John’s service to be most helpful. He was always prompt in replying to any questions I had, and completed the Certifications quickly and [...]
Mina Radia
Having used John Mac Heating for the past 4 years, I find the service very professional and efficient!
Danny Proctor
John has been an asset in providing me with my Landlord Gas Safety Certification. I have used him for a number of years and have [...]
Mrs Shah
John and Abbie run a very efficient, caring, competitively-priced business. I've never known them over promise, just surprise the customer with being able to attend [...]
Mrs Hobbs
John is always punctual, polite, smartly presented and efficient with a quick turn around on all his work, a pleasure to work with!!
Susie
Dear John, Thank you so much for the work you have done for us. We are delighted with the service you have given and look [...]
Nicola
Other services
Find out what else we offer!