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Greenford consists largely of interwar semis, and many of them now have flat-roofed extensions at the back. So most Greenford homes have two kinds of roof to look after. This guide covers both. As local roofers covering Greenford, we see these problems often. The typical interwar roof An interwar semi usually has a hipped roof with clay or concrete tiles, plus a bay window roof and a porch canopy. Many of these roofs are now close to a century old. As a result, the original nails, battens and felt are often worn out. Common signs include tiles slipping in small groups and hip or ridge tiles working loose. The small lead or felt roofs over bays and porches also fail often. Flat-roofed extensions Rear extensions, kitchens and garages often have flat roofs. Older felt roofs tend to blister, crack and hold standing water. In addition, the joint where the extension meets the house wall is a frequent leak point. We repair these roofs or replace them with modern felt, EPDM or GRP. Repair or replace? Many problems only need a repair. For example, refixing slipped tiles or renewing a porch roof covering is often enough. However, if leaks keep appearing in different places, a re-roof may be better value. We explain the options honestly and put them in a written, itemised quote. Simple maintenance Clear gutters and flat roof outlets each autumn. Also check the bay and porch roofs from a window after heavy rain. Catching small problems early almost always keeps the repair smaller. When to call roofers in Greenford Call us if you notice damp patches on ceilings, slipped tiles or overflowing gutters. Also get in touch after a storm if anything on the roof looks out of place. Before any major changes, it is also worth checking the Planning Portal guidance on roof work. Hiring roofers in Greenford GNP Roofing Building Ltd works from Southall, so Greenford is usually around 10 to 15 minutes away for our team. We have over 15 years of experience and carry full public liability insurance. In addition, every job comes with a 10-year written guarantee. Our own team does the work, so we never subcontract. Every quote is also free, written and itemised. Want roofers in Greenford to take a look? Contact us for a free written quote, or call +447424323113.

Hanwell’s Victorian and Edwardian streets are full of character. Their roofs are too, with natural slate, shared chimneys and rear addition roofs. This guide explains the repairs these period homes need most, and how to keep them looking right. As local roofers covering Hanwell, we see these problems often. Slate roofs and nail fatigue Natural slate can outlast the nails that hold it. So when slates start to slip, the slates are often fine and the nails have failed. Where only a few slates move, we refix them with discreet clips. However, when slipping is widespread, stripping and relaying the slates with new fixings may be better value. Shared chimney stacks Many Hanwell terraces share a chimney stack with next door. Leaks often come from cracked flaunching, loose pots or failed flashings. Because the stack is shared, it helps to talk to your neighbour before work starts. We can explain the work to both households. Rear addition roofs Most terraces have a rear addition, often with its own small roof. The joint between this roof and the main house is a frequent leak point. Also, the small valleys and gutters here fill with debris. We check these areas carefully on every visit. Conservation areas Parts of Hanwell sit in conservation areas. In these areas, some roof work may need matching materials, and larger changes may need consent. We will tell you if we think your job needs checking with the council first. When to call roofers in Hanwell Call us if you notice damp patches on ceilings, slipped tiles or overflowing gutters. Also get in touch after a storm if anything on the roof looks out of place. Before any major changes, it is also worth checking the Planning Portal guidance on roof work. Hiring roofers in Hanwell GNP Roofing Building Ltd works from Southall, so Hanwell is usually around 5 to 10 minutes away for our team. We have over 15 years of experience and carry full public liability insurance. In addition, every job comes with a 10-year written guarantee. Our own team does the work, so we never subcontract. Every quote is also free, written and itemised. Want roofers in Hanwell to take a look? Contact us for a free written quote, or call +447424323113.

Hounslow is best known for interwar semis, but it also has older period properties, particularly around the historic town centres. These homes often have slate roofs, decorative details and tall chimneys. This guide explains how to look after them. As local roofers covering Hounslow, we see these problems often. Features of period roofs Period roofs often have natural slate, decorative ridge tiles and finials. Many also have bay window roofs, lead-covered details and tall chimney stacks. These features give the house its character. So repairs should match the original materials wherever possible. Common problems on older roofs Slate itself can last a very long time. However, the nails that hold it often corrode first. As a result, slates slip or fall even though they are still in good condition. Also, lead flashings and valleys wear out, and chimney pointing weathers away. Repairing without losing character For slipped slates, we usually refix them with discreet clips. Where slates are broken, we source matching replacements. In addition, we renew lead work with proper laps and fixings, and repoint chimneys with suitable mortar. Airport-related tile damage Some homes under the Heathrow flight path can occasionally have tiles disturbed by aircraft wake vortices. If you find lifted tiles with no obvious cause, check whether Heathrow’s vortex protection arrangements cover your home. Meanwhile, we can still make the roof safe. When to call roofers in Hounslow Call us if you notice damp patches on ceilings, slipped tiles or overflowing gutters. Also get in touch after a storm if anything on the roof looks out of place. Before any major changes, it is also worth checking the Planning Portal guidance on roof work. Hiring roofers in Hounslow GNP Roofing Building Ltd works from Southall, so Hounslow is usually around 15 to 20 minutes away for our team. For the jobs we see most often, local details and FAQs, see our page on roof repairs in Hounslow. We have over 15 years of experience and carry full public liability insurance. In addition, every job comes with a 10-year written guarantee. Our own team does the work, so we never subcontract. Every quote is also free, written and itemised. Want roofers in Hounslow to take a look? Contact us for a free written quote, or call +447424323113.

Hayes has a large amount of post-war housing, and some estates include steel-framed homes such as BISF houses. These homes look ordinary from the street, but their roofs need a slightly different approach. This guide explains what BISF owners should know. As local roofers covering Hayes, we see these problems often. What is a BISF house? BISF stands for British Iron and Steel Federation. After the Second World War, BISF houses used a steel frame to speed up building. Many have a shallow-pitched roof with profiled sheet coverings, although some now have tiled roofs after re-roofing. Common BISF roof issues Older sheet coverings can crack or become brittle with age. Also, fixings can loosen, and the joints between sheets can let water in. Because the house has a steel frame, it is important to stop leaks early. Otherwise, damp can reach parts of the structure that owners never see. Repair or re-roof? Small problems often only need a repair. However, many owners eventually choose to replace the old covering. The right option depends on the roof structure, so a proper inspection comes first. We explain what we find and give you a written, itemised quote. If your home is a non-standard construction, it is also worth checking with your mortgage lender or insurer before major work. Other roofs in Hayes Of course, most Hayes homes are traditional brick houses. Flat-roofed garages and extensions are very common here. So we also repair and replace flat roofs using modern felt, EPDM and GRP systems. When to call roofers in Hayes Call us if you notice damp patches on ceilings, slipped tiles or overflowing gutters. Also get in touch after a storm if anything on the roof looks out of place. Before any major changes, it is also worth checking the Planning Portal guidance on roof work. Hiring roofers in Hayes GNP Roofing Building Ltd works from Southall, so Hayes is usually around 15 to 20 minutes away for our team. We have over 15 years of experience and carry full public liability insurance. In addition, every job comes with a 10-year written guarantee. Our own team does the work, so we never subcontract. Every quote is also free, written and itemised. Want roofers in Hayes to take a look? Contact us for a free written quote, or call +447424323113.

A large share of Slough’s housing dates from the post-war years and the 1960s and 70s. These homes have their own typical roofs, with their own typical problems. This guide explains what owners of these homes should look out for. As local roofers covering Slough, we see these problems often. Typical roofs on post-war homes Many post-war and 1960s to 70s homes have concrete interlocking tiles on a shallow to medium pitch. Underneath, you will often find the original bitumen felt. Many also have flat-roofed garages, porches or extensions. These roofs can look fine from the street. However, the felt underneath is often brittle by now, and the nails may be rusting. Common problems Slipped tiles are common, especially after storms. Also, ridge tiles bedded in mortar tend to work loose over time. Flat roofs on garages and extensions often blister, crack or hold standing water. In addition, timber soffits and fascias from this era can rot and need replacing. Repair or upgrade? Many problems only need a repair. For example, we can refix slipped tiles or rebed a loose ridge. However, if the felt has failed across the roof, a re-roof with a modern breathable membrane may be better value. Similarly, an old felt flat roof can switch to a modern system such as EPDM or GRP. Roofline upgrades Replacing rotten timber soffits and fascias with low-maintenance UPVC is a popular upgrade. It is also a good moment to renew the gutters, so the whole roofline works together. When to call roofers in Slough Call us if you notice damp patches on ceilings, slipped tiles or overflowing gutters. Also get in touch after a storm if anything on the roof looks out of place. Before any major changes, it is also worth checking the Planning Portal guidance on roof work. Hiring roofers in Slough GNP Roofing Building Ltd works from Southall, so Slough is usually around 25 to 30 minutes away for our team. We have over 15 years of experience and carry full public liability insurance. In addition, every job comes with a 10-year written guarantee. Our own team does the work, so we never subcontract. Every quote is also free, written and itemised. Want roofers in Slough to take a look? Contact us for a free written quote, or call +447424323113.

Chimneys cause a surprising number of roof leaks in Hillingdon. Many homes here have brick stacks that have stood through decades of weather. This guide explains the chimney problems we see most often and how repointing and related repairs fix them. As local roofers covering Hillingdon, we see these problems often. How chimneys let water in A chimney has several weak points. The mortar joints between the bricks wear away over time. The flaunching, which is the mortar cap around the pots, cracks. In addition, the lead flashing where the stack meets the roof can lift or split. Any one of these lets water into the stack or the roof below. What repointing involves Repointing means raking out the worn mortar and replacing it with fresh mortar. First, we set up safe access to the stack. Then we rake out the old joints to a proper depth. Next, we repoint using a mortar that suits the age of the brickwork. Finally, we check the flaunching and flashings, because it makes sense to fix everything in one visit. Other chimney repairs Sometimes a stack needs more than repointing. For example, loose or cracked pots may need rebedding or replacing. Unused flues can take a cowl to keep rain and birds out. In more serious cases, a leaning or badly damaged stack may need partial rebuilding. Moss, trees and gutters Many Hillingdon streets have mature trees. Leaves and moss build up in gutters and valleys, and that can cause overflowing and damp walls. So we often combine chimney work with a gutter clear while the access is in place. When to call roofers in Hillingdon Call us if you notice damp patches on ceilings, slipped tiles or overflowing gutters. Also get in touch after a storm if anything on the roof looks out of place. Before any major changes, it is also worth checking the Planning Portal guidance on roof work. Hiring roofers in Hillingdon GNP Roofing Building Ltd works from Southall, so Hillingdon is usually around 20 to 25 minutes away for our team. We have over 15 years of experience and carry full public liability insurance. In addition, every job comes with a 10-year written guarantee. Our own team does the work, so we never subcontract. Every quote is also free, written and itemised. Want roofers in Hillingdon to take a look? Contact us for a free written quote, or call +447424323113.

Harrow has a lot of steep roofs. Many interwar homes have tall, hipped roofs, and Harrow on the Hill has older properties with steep pitches and big chimneys. This guide looks at what makes these roofs different and how we work on them safely. As local roofers covering Harrow, we see these problems often. Why steep roofs need extra care A steep roof sheds water quickly, which is good. However, it is harder to work on safely. So repairs usually need proper access, such as scaffolding or a roof ladder, rather than a quick climb. We never cut corners on access, because it protects both our team and your roof. Steep roofs also show wear in specific places. For example, hips and ridges take the brunt of the wind, and their mortar can crack over time. Chimneys on Harrow homes Many Harrow houses have large chimney stacks. These stacks are exposed to all weathers. As a result, pointing wears away, flaunching around the pots cracks, and lead flashings lift. Any of these can let water into the stack and down into the rooms below. Typical chimney work includes repointing, renewing flaunching, refitting flashings and fitting cowls to unused flues. Dormers and loft conversions Many Harrow homes now have loft conversions. Leaks often start where the dormer meets the original roof. Also, flat dormer roofs can fail at the edges. We check these joints carefully on every inspection. Signs to watch for Look for damp near the chimney breast, stains on upstairs ceilings, or pieces of mortar in the garden. In addition, check whether any ridge or hip tiles look out of line from the street. When to call roofers in Harrow Call us if you notice damp patches on ceilings, slipped tiles or overflowing gutters. Also get in touch after a storm if anything on the roof looks out of place. Before any major changes, it is also worth checking the Planning Portal guidance on roof work. Hiring roofers in Harrow GNP Roofing Building Ltd works from Southall, so Harrow is usually around 25 to 30 minutes away for our team. We have over 15 years of experience and carry full public liability insurance. In addition, every job comes with a 10-year written guarantee. Our own team does the work, so we never subcontract. Every quote is also free, written and itemised. Want roofers in Harrow to take a look? Contact us for a free written quote, or call +447424323113.

Wembley has a mix of interwar Metroland homes and a large number of new buildings. Many older houses are now due for a new roof. At the same time, newer blocks rely on flat roofs. This guide explains what a re-roof involves and what to know about flat roofs on newer properties. As local roofers covering Wembley, we see these problems often. How to tell if you need a re-roof A repair is often enough. However, a full re-roof starts to make sense in a few situations. For example, leaks keep appearing in different places. The felt under the tiles has turned brittle across the whole roof. Or the tiles themselves are cracking, flaking or losing their surface. We will always tell you honestly whether repair or replacement is the better option. What a re-roof involves First, we set up safe access, usually with scaffolding. Then we strip the old tiles, felt and battens. Next, we check the rafters and repair any damaged timber. After that, we fit a new breathable membrane, new battens and the new tiles. Finally, we renew the ridges, hips, flashings and any lead work, and clear the site. You get a written, itemised quote before any work starts, so you know exactly what is included. Flat roofs on newer buildings Many newer homes and blocks in Wembley have flat roofs. These roofs rely on good falls and clear outlets. So the most common issues are ponding water, blocked outlets and failed edge details. We repair and replace flat roofs using modern felt, EPDM or GRP systems. Planning ahead If you are thinking about a re-roof, spring and summer are usually the easiest seasons to schedule. Also, if you are planning a loft conversion, it can make sense to combine the work. That way, the new roof and the conversion are designed together. When to call roofers in Wembley Call us if you notice damp patches on ceilings, slipped tiles or overflowing gutters. Also get in touch after a storm if anything on the roof looks out of place. Before any major changes, it is also worth checking the Planning Portal guidance on roof work. Hiring roofers in Wembley GNP Roofing Building Ltd works from Southall, so Wembley is usually around 20 to 25 minutes away for our team. We have over 15 years of experience and carry full public liability insurance. In addition, every job comes with a 10-year written guarantee. Our own team does the work, so we never subcontract. Every quote is also free, written and itemised. Want roofers in Wembley to take a look? Contact us for a free written quote, or call +447424323113.

Brentford sits where the canal meets the Thames. Along the water, you will find converted buildings, newer flats and plenty of flat roofs. Away from the river, older terraces have traditional pitched roofs. This guide covers the roofing issues that come with both. As local roofers covering Brentford, we see these problems often. Flat roofs near the water Waterside buildings can face more damp and wind than homes further inland. So flat roofs here need good drainage and sound edge details. The most common problems we see are ponding water, split membranes and failed flashings where the roof meets a wall. When a flat roof reaches the end of its life, we usually recommend a modern felt system, EPDM rubber or GRP fibreglass. Each suits different shapes and budgets, and we explain the choice in writing. Balconies, terraces and outlets Many newer buildings have roof terraces and balconies. These areas often drain through small outlets that block easily. Therefore, it pays to keep them clear, especially in autumn. Blocked outlets let water build up and find its way through joints. Pitched roof repairs on older terraces Brentford’s older terraces mostly have slate or clay tile roofs. Typical repairs include refixing slipped slates, renewing lead flashings and repointing chimneys. In addition, the joint between the main roof and a rear addition is a frequent leak spot. We check it on every inspection. When to call a roofer Call us if you see damp patches on a top-floor ceiling, water pooling on a flat roof days after rain, or pieces of slate or tile on the ground. Also get in touch if a gutter keeps overflowing in the same spot. When to call roofers in Brentford Call us if you notice damp patches on ceilings, slipped tiles or overflowing gutters. Also get in touch after a storm if anything on the roof looks out of place. Before any major changes, it is also worth checking the Planning Portal guidance on roof work. Hiring roofers in Brentford GNP Roofing Building Ltd works from Southall, so Brentford is usually around 15 to 20 minutes away for our team. We have over 15 years of experience and carry full public liability insurance. In addition, every job comes with a 10-year written guarantee. Our own team does the work, so we never subcontract. Every quote is also free, written and itemised. Want roofers in Brentford to take a look? Contact us for a free written quote, or call +447424323113.

Uxbridge has two quite different kinds of roof. Much of the suburbs is interwar Metroland housing with tiled, hipped roofs. Meanwhile, some older parts of the area still have small slate-roofed cottages. Each needs a different approach, so this guide looks at both. As local roofers covering Uxbridge, we see these problems often. Metroland semis: what to look for Metroland semis usually have hipped roofs with clay or concrete tiles, plus bay window roofs and a porch canopy. Many roofs are now close to a century old. As a result, the original nails and battens are often near the end of their life. You may notice tiles slipping in small groups, or ridge and hip tiles working loose. In many cases, a careful repair is enough. However, if the underfelt has failed across the whole roof, a re-roof may be better value in the long run. Slate cottages: a gentler approach Natural slate can last a very long time. Often the slates themselves are fine and only the fixings have failed. So the usual fix is to refix slipped slates with discreet clips rather than replace the roof. Where slates are broken, we match them as closely as possible so the repair blends in. Chimneys on older cottages also need attention. For example, worn pointing and cracked flaunching often let water into the stack. Guttering and fascias On both types of home, gutters take a lot of punishment. Leaves, moss and debris cause overflowing, and that can lead to damp walls. Also, timber fascias can rot behind the gutter. We can clear, repair or replace gutters and fascias as part of a roof visit. A note for landlords Uxbridge has many rented homes. In a rented property, small leaks can go unreported for months. For this reason, an occasional roof and gutter check can save a much bigger bill later. When to call roofers in Uxbridge Call us if you notice damp patches on ceilings, slipped tiles or overflowing gutters. Also get in touch after a storm if anything on the roof looks out of place. Before any major changes, it is also worth checking the Planning Portal guidance on roof work. Hiring roofers in Uxbridge GNP Roofing Building Ltd works from Southall, so Uxbridge is usually around 20 to 25 minutes away for our team. We have over 15 years of experience and carry full public liability insurance. In addition, every job comes with a 10-year written guarantee. Our own team does the work, so we never subcontract. Every quote is also free, written and itemised. Want roofers in Uxbridge to take a look? Contact us for a free written quote, or call +447424323113.