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Gwynedd Roofing Contractor

At Colin Dobson Roofing Cyf, our goal is to provide you with a reliable, quality service to suit both your budget and your requirements in keeping with relevant building regulations. We are a roofing contractor with a wide range of experience in flat felt roofing and Sika Liquid Plastics roofing systems. We can help you with all aspects of roofing from flat felt roofing, Sika Liquid Plastics systems and slating, to guttering, fascia and soffit replacement.

Colin specialises in Sika Liquid Plastics products. He uses products such as Sikalastic RoofPro, Sikalastic 618 which is now being phased out and uses Sikalastic 625, Decothane and Decadex.

Colin also specialises in flat felt roofing and only uses the best products namely Icopal's elastromeric Tecnatorch felt. He has been carrying out flat felt roofing across Gwynedd for over 30 years. Without realising it you will have driven past roofs in Pwllheli, on Pen Llŷn and all across Gwynedd which have been done by him. The flat felt roofing work he carries out has evolved over the years and he prefers Icopal's elastromeric felt as he feels it is by far the best quality of felt which is why he is confident in issuing 10 to 15 year guarantees depending on how many layers of felt are used.

The company offers guarantees depending on which system is used. These vary from 10 years to 20 and sometimes even 25 years with the Sika Liquid Plastics systems. More information on these can be given at the point Colin submits any free, no-obligation estimate.

Colin is well known in the Pwllheli area and in and around Pen Llŷn from his extensive work in flat felt roofing and Sika Liquid Plastics roofing work over the years.

We aim to deliver an experience that will fulfill your expectations in the same way we would expect a service to be delivered to us. Communication is key to a good working relationship and we pride ourselves on keeping in touch with our customers from start to finish as well as offering an excellent after care service. Our excellent reputation attests to our superior craftsmanship, attention to detail, clear communication, honesty and integrity.

Contact us for a free, no obligation estimate or simply for help and advice. Check out pictures of some of his previous work by going to

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