Please take the time to browse our website and learn more about our business and how we can help you with your flat roof projects or problems. We are extremely approachable and friendly people and strive to produce a fantastic, professional service along with quality solutions for all our domestic and commercial customers. We are here to assist you in making the right choice for you regarding your flat roof. All of our flat roof systems come with a 20 year guarantee and have a life span of up to 50 years. Please get in touch with one of our friendly team if you have any questions or you wish to see some previous projects we’ve been involved in.


Cure-It Fibreglass Roofing
MG Roofing are fully trained Fibreglass GRP Roofing installers! GRP (Glass Reinforced Plastic) also known as fibreglass. This consists of a mat of glass fibre strands used in conjunction with a flexible resin compound which cures to a tough and durable finish. GRP has been in use for many years and has been used for marine craft such as boats and yachts. It has also been used for car bodies and is found in aircraft manufacture. It is also recognised by construction authorities and home insurers as a premium flat roofing solution. We believe that our product is the ultimate solution for flat roofing; it will require no maintenance and will look good for years. A GRP roofing sytem will give you peace of mind for many years to come. MG Roofing are also LABC certified (Local Building Authority Building Control) and have attended regular training sessions to develop our skillset.


MG Roofing are fully trained in Firestone EPDM Roofing

We believe that Firestone EPDM roofing is the markets leading waterproofing system. As a fully trained Firestone EPDM Roofing installer, you can be sure that your roof will be watertight for years to come. Firestone RubberCover EPDM Roofing System is the ideal, durable solution for small residential flat roofs such as ; extensions, verandas. dormers, porches, garages, carports, garden sheds, balconies, gutters and trailers. Why do we choose Firestone EPDM for your roof? Firestone EPDM membrane is always fully adhered to the substrate, by applying RubberCover Bonding Adhesive both to the membrane and the substrate. Compatible substrates are wood, bitumen, PIR and PUR insulation, concrete, aluminium and zinc. Firestone EPDM Roofing membranes can be installed on both new and existing roofs. Firestone EPDM can overlay virtually any old roof provided the roof decking is sound and the existing structure can carry the load of the new flat roofing system.


Superior Durability
Firestone EPDM Roofing Membranes offer unmatched resistance to ozone, UV radiation and high or low temperatures. They have a life expectancy of up to 50 years and come with a 20 year guarantee upon installation by us. Over a billion of square metres of roof installations worldwide are a testimony of Firestone EPDM roofing membrane’s proven performance.

Seamless sheets in 1 piece
Firestone EPDM roofing membranes are available in large, seamless sheets up to 6.10 metres in width. Most small residential roofs can therefore be covered with one single sheet without any field seaming.
Very low life-cycle cost

Firestone EPDM roofing membranes require little to no maintenance after installation. This feature, in combination with the membranes inherent durability and competitive installation cost, results in a very low life cycle cost.

Highly Flexible and elongated

Firestone EPDM roofing membranes remain highly flexible even at low temperatures, enabling year round installation. The membrane can also elongate over 300% to accommodate building movements. Environmentally friendly Firestone RubberCover EPDM is an inert material with limited environmental impact, both during manufacture and installation. In addition, Firestone’s EPDM manufacturing facilities have received ISO 14001 certification for their environmental management system.



MG Roofing are garage roof replacement specialists operating throughout Anglesey and North Wales.

If you’ve got a problem with your garage roof and you think you need it replacing, then you have come to the right place.

How do I know if I've got a problem?

Over past years, most garage roofs have been fitted with timber decking and felt. Normally, over time the felt will split and leak and be overlayed with further layers of felt when repairs are carried out. The outlets may block up with debris causing standing water called ‘ponding’ which adds additional weight to your roof and will need addressing on roof replacement by using new timber firring pieces to enable the water to drain off the roof properly.

Flat roofs contract and expand when they heat up and cool down during the day and night. This is where felt roofs fail and split and begin to leak. If you look at the pictures below, you’ll see typical damage associated with a felt roof as it reaches its lifespan.

Modern flat roofs, especially EPDM are extremely flexible and elongate to over 300%. They are also hugely stable and have a proven lifespan of up to 50 years plus and come with a 20 year guarantee.

Have a look at each of these garage roof replacement solutions below. We can also quote for UPVC at the same time if you wish.

Our garage roof replacement solutions

GRP Roofing
GRP fibreglass roofs are extremely durable and highly highly attractive. A premium roof system for your flat roof.

Rubberbond EPDM
Rubberbond Fleeceback is the premium version of all EPDM and is perfect for overlaying roof systems where possible.

Firestone EPDM

Attractive edge trims give a great finish to this long-lasting flat roof system and comes with a 20 year guarantee.

Contact Us

Mobile: 07508 035608

Landline: 01248 422698 


4 Maes Gwyn
LL60 6AF

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