Commercial Pitched Roofing Contractors​

Experience excellence in commercial pitched roofing services with our team of seasoned professionals. From initial guidance to impeccable workmanship, we exceed expectations by combining extensive expertise, traditional materials, and cutting-edge solutions for all commercial and large residential properties.


Benefit From 45+ Years of Pitched Roofing Experience.

As experienced commercial pitched roofing contractors, we offer a complete range of pitched roofing services to meet the needs of all commercial and large residential properties. With our unwavering commitment to excellence, we have established ourselves as trusted specialists in commercial pitched roofing.

If you have any queries about your commercial pitched roof, reach out to Maguire Brothers for immediate assistance. We will clearly outline all of the options available, and equip you with the necessary tools for making an independent and unbiased decision – resulting in the best solution and maximising the value of your investment.


Pitched Roof Replacement & Solar Integration
Pitched Roofing Specification Service - Maguire Brothers

Have you tried our Pitched Roofing Specification Service?

We provide accurate, compliant, and tailored specifications that meet the highest industry standards. From material selection to project execution, we’ve got you covered. Contact us today and let’s redefine your approach to pitched roof specifications.


Learn About Commercial Pitched Roofing Systems.

Pitched roofing has been a feature of our built environment since man first started building shelters to live in. In the British Isles, which has high levels of precipitation, it was common sense to build a roof structure which would quickly shed the water and snow and not allow the building to become waterlogged.

Traditionally pitched roofs were covered with materials found in the local environment like stone, slate and clay. Before the days of industrialisation, local areas would have local traditions according to the materials available locally and the needs of the local people. Many of these traditions survive to this day and are often called for on heritage projects and work on listed buildings.

Traditional roofing products, whilst generally long-lasting and durable, are also expensive to manufacture and so technology and an ever-smaller world has seen the arrival of lower-cost man-made products.

All roof slates and tiles need to be fixed and some materials cannot be used at all in some locations. The exact fixing requirements for all slates and tiles will depend on the design of the roof, its locality and exposure. We are happy to provide guidance to our clients and advise on best practices for commercial pitched roofing.

Slate Roofing

Natural slating is an extremely long-lasting roofing system and in many cases a well laid slate roof can significantly outlive its occupants.

Slating is durable and can withstand freezing temperatures as well as strong weather. Each slate is fixed with two nails using a ‘double overlap’ system.

Whilst this ensure the reliability of the material it also means a relatively large number of slates are used compared to some other materials and it increases labour costs as well.

Traditionally slates used in the UK were mainly Welsh, but Cornish and Westmoreland were also widespread, often used on more prestige buildings. These slates are generally accepted as being the best products available for roofing but they are now very expensive and usually only specified on very highly specified projects such as listed buildings.

The local supply of these traditional materials has been supplemented by imports from many other countries. The most common source is Spain.

Imported slates come in a wide variety of qualities and price and great care must be taken when selecting them.

Unfortunately, the criteria used to grade slates does not include all the features which are necessary to consider to achieve a high quality roof and it is tempting to be seduced by an attractive price.

But all that glitters is not gold and so we are happy to advise our Clients on how to select the most suitable products and explain the differences.

Natural slates however can be both heavy and pricey and a lighter more economical alternative is man-made slates.

Whilst these are significantly lower in price, they also have a lower life span. The most commonly used artificial slates are made from a fibre-cement mix. Other manufacturers use a more durable mixture of resin and reconstituted slate

Tiled Roofing

Tiles come in a variety of styles, shapes colours and materials. Below is a quick synopsis of the most commonly used but for a more in-depth appreciation please contact us and we will be happy to discuss your project or even provide a CPD seminar.

Tiles are traditionally manufactured from clay but for the last 100 years concrete has also been used. Concrete tiles have become more and more sophisticated and these days it is sometimes difficult to tell them apart.

Plain Tiles and Peg Tiles

‘Plain tiles’ are a very common style traditionally measuring 10 ½ “ x 6 ½”  but with only one third of that surface area visible because the tiles overlap the two tiles in the courses below them. Approximately 20% of plain tiles are also mechanically fixed with nails.

Peg tiles are only produced in clay and rely on a wooden peg to hook them over battens, whereas plain tiles are secured by integral ‘nibs’ which are hooked over battens.

Interlocking Tiles

Interlocking tiles are a more efficient method of covering a roof than plain tiles or slates. While the former have a ‘double overlap’ (meaning they overlap the tiles or slates in the two course below them) interlocking tiles only have a single lap (meaning they only overlap the directly tile below them and they are connected to the tiles on either side with interlocking channels). Because of this far fewer tiles are required and roofing is far quicker and cheaper.

An additional benefit of interlocking tiles is that they can be used on lower roof pitches.


As with all roofs, when the coverings are replaced the new roof must comply with Building Regulations and this usually means that additional insulation has to be provided to meet the current requirement.

This usually takes the form of insulation quilt but when there is no loft and ceilings are fixed directly to the underside of the rafters, more efficient rigid insulation boards are required to meet the required standard.

To prevent condensation the roof void has to be ventilated. In roofs where there is a loft area this is relatively easy to achieve but where ceilings are fixed directly to the underside of rafters, such as in Churches or vaulted ceilings, ventilation can become more complicated.

Metal Roofing

Lightweight metal roof tiles can be made from a variety of different metals. Sheet metal is pressed into a pattern to mimic a single tile or a strip or sheet of tiles. The surface is then treated with a smooth or textured coating to protect the metal and provide a more pleasing aesthetic finish.

They offer a cost-effective solution, because they can be Installed quickly. Thicker tiles are particularly robust and ideal for areas where physical damage or vandalism or theft could be an issue. Schools and sports pavilions often choose them. They can also be used on very low roof pitches and unlike most tiles, access for maintenance to retrieve balls or leaves will not result in breakages.

Their lightweight means that transporting them, both on site and to site, is much more efficient, saving money and the environment. Metal roof tiles are significantly less susceptible to cracking and very unlikely to split, therefore providing property managers with a very low maintenance roof.

Flat to Pitched Roof Conversions

Traditional construction would make the conversion of a flat roof into a pitched roof an expensive and time consuming operation. The additional load on the existing structure would often be prohibitive and the cost would not justify the long-term savings.

However, a flat roof can quite easily be transformed into a pitched roof by forming a lightweight metal structure fixed directly over the existing slab. The new structure can be over roofed with lightweight, pressed metal roof tiles. The new lightweight roof is both aesthetically pleasing and will almost certainly reduce the cost of re-roofing over the life of the building.

Similar systems can be used to convert roofs into accommodation and office space. Creating a pitched roof also allows you to increase the insulation provision and reduce heating bills. Finally, a further environmental benefit is that the whole system is recyclable at the end of its life.


How To Survey A Pitched Roof: A Comprehensive Guide

Get in touch with us.

We are trusted specialists in pitched roofing, providing comprehensive and tailored services for commercial and large residential properties. With a dedication to excellence, our experienced team combines traditional expertise with innovative techniques to deliver impeccable workmanship and exceed your expectations.


What is pitched roofing?

In the UK, traditional pitched roofs typically measure between 22.5° and 47.5°. This roofing type is hugely popular due to its effectiveness and durability in resisting all types of weather conditions including prolonged rainfall, strong winds and storms, snow and sleet, among others. Pitched roofing is commonly seen atop schools, churches, heritage and listed buildings, and a wide range of commercial properties such from offices to shops.

What are the benefits of pitched roofing?

Whether you choose clay or concrete tiles, or metal pitched roofing, you will enjoy a host of benefits including:

  • Stylistic Versatility: Pitched roofing materials are available in a wide array of shapes, styles, and types. You will have no problem matching the pitched roofing with the rest of your church, school, or commercial building.
  • Enhanced Structure Integrity: Far from being a structural liability, most pitched roof coverings – including clay and concrete roof tiles – complement and bolster the structural integrity of the roof while providing excellent protection from the dangers of the environment.
  • Drainage Capabilities: No matter what type of pitched roofing you choose, your property will benefit from the pitched roof’s ability to direct rainwater from the slope of the roof to the gutters and downspouts. As an added bonus, if there is a problem with drainage, it will be very easy to spot from the ground.
  • A Platform for Sustainable Technologies: The pitched roof system using clay or concrete tiles is an ideal platform for solar thermal, solar voltaic and photovoltaic technology. In addition, pitched roofing can be used to harvest rainwater.
  • Year-Round Comfort: Most pitched roofing contains a ventilated cavity under the main roof layers. The area has the ability to prevent heat from penetrating to the interior during the summer and trapping warm air during the winter. This can help you save money on both air conditioning and heating.
  • Low Maintenance Costs: Properly installed pitched roofing provides years of reliable service with only the most rudimentary maintenance requirements.

What are the different kinds of pitched roofs?

As experienced commercial pitched roofing contractors, we provide clients with a wide variety of different roof styles including:

  • Collar Roofs: Contrary to popular belief, roof collars are not there to protect the supporting walls or to enhance the load-bearing capabilities of the roof. Collar ties prevent the separation of the roof along the ridge due to wind-related uplift or the weight of heavy snow.
  • Couple Roofs: The couple roof is one of the simplest forms of pitched roof. It typically covers a narrow span and the opposing rafters that form the ridge are tied together with the supporting walls resisting the outward forces produced by the roof.
  • Close Couple Roof: The close couple roof introduces the triangle to the roof structure with a main tie secured to the feet of each rafter and spanning the width of the opening. A vertical hanger is also affixed to the rafter at the ridge and again to the horizontal main tie.
  • Large Section Truss Roof: The large section truss enables a wider span to be achieved than previously possible. As a result, this roof type is commonly found in stadiums, cinemas, airports, auditoriums, railway stations and the like.
  • Mono-Pitch Roof: As the name implies, a mono-pitched roof features a single pitch from one side of a building to another. Most lay people would likely refer to this as a slanted roof. But whatever you call it, Maguire Brothers offer peerless mono-pitch roofing.
  • Purlin Roof: Sometimes a building owner will want to increase the span of their roof without threatening the stability of the supporting walls. In such instances, purlins can be introduced into the roof structure to provide extra support to the rafters.
  • Trussed Rafter: The trussed rafter is instantly recognisable by its W-shaped truss. The typical trussed rafter is able to span up to 12 meters and can accommodate a variety of pitch angles in the roof.

How do I go about replacing a damaged pitched roof?

If your commercial pitched roof is severely damaged and needs replacing, reach out to Maguire Brothers for immediate assistance. We will promptly provide you with a quote, explaining the cost of its replacement and the factors that have determined this. We clearly outline all of the options available, and equip you with the necessary tools for making an independent and unbiased decision – resulting in the best solution and maximising the value of your investment.