Who are ATAG?

Based in Dunfermline, ATAG have been designing and manufacturing boilers for almost 70 years. In that time they have set the highest standards for energy efficiency and engineering excellence across the world. Designed to the highest standards, ATAG boilers have an expected life of 18 years.

ATAG also have a team of highly trained and experienced Service Engineers available. Based in Perth, Stirling, Carnoustie and Edinburgh, you can be assured to receive an efficient response in the unlikely event that something goes wrong. ATAG Service Engineers carry a full service pack, enabling an impressive 98% First Time Fix rate.

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What is an ATAG Selected Partner?

ATAG insist that their boilers are installed to the highest standards, to ensure that you receive the maximum benefits from your ATAG boiler.

ATAG only supply boilers to a hand-picked network of legally qualified Gas Safe registered installers, and LW Haddow is proud to be one of them.

From design through to installation and after-care service, ATAG Selected Partners are trained in the entire ATAG product range and are on hand to offer excellent advice and the best possible solution to suits your needs.

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Built To Last – 10 Year Warranty 

ATAG boilers are built to last using the highest quality stainless steel and brass components.

ATAG are so confident of the quality of their products that they offer an unparalleled, 10 year warranty as standard for all parts and labour.

With a mean life-time of 18 years, ATAG boilers have one of the cheapest boiler life-time costs available on the market.

Reducing Your Heating Bills

ATAG boilers offer solutions that are efficient, reliable and specific to you and your home, and most importantly will save you money.

The ATAG boiler range is the most energy efficient in Europe and can help cut your annual gas bills by up to £320 (Energy Saving Trust, April 2017).

Atag Boiler


No matter what your needs are, ATAG will have the perfect boiler for you.

  • Combination Boilers
  • System Boilers
  • Regular Boilers

Passive Flue Gas Recovery technology allows you to reuse heat from your boiler that would otherwise be wasted. ATAG boilers harvest 3KW into hot water, saving you up to £50 per year.

Speak to one of our expert team today to discuss your particular needs.

Annual Servicing 

We offer an Annual Service for £80 + VAT, or we can offer a monthly service package from just £14 per month. 


We provide plumbing services to a wide range of domestic and commercial clients.

How can we help?

We are experienced in carrying out all types of plumbing, gas and electrical work. We can help you from the smallest task, like replacing a tap washer or light switch, to a complete heating system installation and house rewiring.

You can rely on our team, as we’ve been supporting domestic customers and business across Scotland for 30 years. We are happy to provide quotations, just get in touch and one of our team will help you out.


Our team provide commercial heating and plumbing services to a wide range of commercial clients.


We’ll provide all the domestic heating and plumbing services you’ll need, whether these are gas, oil, or electric.


Our experienced team offer a 24 hour emergency call out service for our existing customers.


LW Haddow service all major boiler brands, including Worcester Bosch, Grant UK and Baxi.


Our experienced team can provide installation, maintenance and integration for renewables.


Our team carry out gas servicing, repair and installation work to a wide range of clients.

“LW Haddow Plumbing and Heating have been our appointed contractor for over 15 years. During this time they have installed, commissioned and maintained numerous items of heating and plumbing plant to a very high standard.”

MF Wells Hotels / (lochs and glens)

“In both the business and the home environment, LW Haddow and his team continue to amaze me with the quality and courtesy of service they extend.”

John Garvie / Perth

“I would like to take this opportunity to thank your team for the excellent job the have made of installing my Rayburn. It looks fantastic!”

Miss Julie A. / Bell, Kingoldrum