Outstanding Plumbing & Heating Services. For Free Quotes And Advice Please Call Us Now. All Bathroom & Kitchen Plumbing Undertaken. Boiler Installation Specialists. McDougall Plumbing & Heating have been established since 1920 and since taking over the business 18 years ago, Gavin Brownlie has continued the tradition of providing a reliable service and quality workmanship. We have been providing Tayside & Angus with outstanding service since 1920. Our reputation is in our client's hands which is why our clients come back to us. Testimonials available on request. Other trades supplied if required.