Pitched & Flat Roof Installations Across Westminster, Ealing, Hampstead, Chelsea & Kensington

At Portman UK, we specialise in the installation of high-quality pitched and flat roofs built to last. Whether you’re developing a new property or replacing an old or damaged roof, our experienced team delivers workmanship you can rely on.

Working across Westminster, Ealing, Chelsea, St John’s Wood and Kensington, we provide professional roofing solutions tailored to your home and architectural style.

From classic pitched roof designs to modern flat roofing systems, we offer a full range of materials to suit your preferences. Each option is chosen for durability, weather resistance and long-term performance—ensuring your home stays protected in all conditions.

Known for our attention to detail and commitment to quality, Portman UK uses trusted materials, best-practice installation methods and a customer-first approach on every project. When you choose us for your pitched or flat roof installation, you can expect long-lasting protection and a finish that enhances your property’s appearance.

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What Is a Pitched Roof?

A pitched roof features sloping surfaces that meet at a ridge, giving it excellent drainage, strong weather resistance and timeless kerb appeal. Popular for both traditional and modern homes, pitched roofs help water run off quickly, reducing the risk of leaks and structural damage.

These roofs can be finished with a variety of materials, including clay tiles, concrete tiles and natural slate. Whether steep or gently sloped, a well-constructed pitched roof offers durability, character and lasting value.

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What Is a Flat Roof?

Flat roofs are a popular choice for contemporary homes, extensions, garages and commercial properties. Despite their name, flat roofs have a slight gradient to allow rainwater to drain effectively.

Thanks to modern materials, flat roofs now offer exceptional longevity, low maintenance and a clean, modern appearance. 

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Planning a New Roof Installation?  You May Have a Few Questions:

The cost of a new roof varies depending on several factors, including the size of the property, the type of roof, your chosen materials and how complex the installation is. Access and scaffolding requirements also play a big role in London, where many homes are terraced or located on tight streets. The best way to get an accurate price is through a site survey, where we can assess the roof and provide a clear, itemised quote.

In many cases, replacing your roof like-for-like does not require planning permission because it falls under permitted development. However, if you are in a conservation area, working on a listed building or making significant changes to the roof’s shape, height or materials, permission may be needed. London has many protected areas, so it’s always advisable to check with your local planning authority. 

The time required depends on the size of the roof, the materials being installed and the condition of the existing structure. Most flat roofs can be installed within a few days, while pitched roofs usually take longer due to the number of components involved. As a general estimate, a full roof replacement on an average-sized home takes between one and two weeks. During your initial consultation, we’ll provide a more accurate timeline based on your specific project.

The lifespan of your new roof depends on the materials used and how well it’s maintained. A well-installed pitched roof with clay or concrete tiles can last 50 years or more, while high-quality slate can last even longer. Modern flat roofing systems typically last 20–30 years with minimal maintenance.

Yes. Many London homes have limited access, particularly terraced properties or buildings on narrow streets. We are experienced in planning installations around these challenges. By assessing the property in advance, we can determine the best way to access the roof safely – whether that involves scaffold adaptations, specialised equipment or coordinated deliveries. No matter how tight the space, we aim to complete the work efficiently and with minimal disruption.

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