Roofing across London
Alliance Roofing London carries out roofing work across the capital, with a London contact address at 28 Old Brompton Road, South Kensington, SW7 3SS. Our coverage includes Kensington, Chelsea, Holland Park, Notting Hill, Bayswater, Mayfair, Knightsbridge and Pimlico, as well as the other districts listed below. Tell us the full postcode when you enquire. It helps us discuss the location and access without assuming that every property on the same street has the same roof.
The work may concern a house, a flat, a shop, a managed block or another commercial property. We deal with pitched coverings, flat roofs, chimneys, leadwork, gutters and occupied roof terraces. A clear description of the problem is more useful than choosing a roofing system before the existing construction has been checked. Let us know whether you need help with an active leak, planned maintenance or a complete roof renewal.
Leaks on terraced and shared buildings
On a terrace or converted building, water can enter at one junction and appear in a different room or on a lower floor. The roof covering, chimney, parapet, gutter and adjoining wall may all need consideration. Send a photograph of the inside mark and a safe outside view that shows where it sits in the building. Say whether it happens during heavy rain, after wind or at other times, and whether the mark is new or recurring.
If the roof is shared, identify who can arrange access and approve the work. A managing agent or freeholder may need to be involved before a survey or repair is booked. We can discuss the affected area and proposed scope with the appropriate contact. Do not assume that the position of a damp patch proves which property is responsible; the source needs to be established before that question can be answered.
Slate, tile and flat roof options
A local repair can be appropriate where the surrounding materials remain sound. Slate and tile work may involve replacing damaged pieces, repairing a valley or renewing the flashing around a chimney. Matching the profile and laying detail matters as well as the colour. On a roof with widespread slipping, repeated patches or deterioration below the covering, a larger repair or replacement may be worth discussing alongside the immediate defect.
For flat roofs, the deck, insulation, falls, outlets and perimeter details help determine the suitable repair. Alliance works with felt, EPDM, GRP and liquid waterproofing where the construction and specification make them appropriate. A balcony or roof terrace also needs a finish that suits foot traffic and protects the waterproofing underneath. The service guides explain these different types of work so you can ask about the details that affect your property.
Planning access in a built-up location
Let us know about restricted parking, narrow side passages, basement areas, neighbouring gardens and any route through the building. These details can affect how the roof is inspected and how materials are moved. Where scaffolding is needed, its position and the areas below the work must be considered in advance. Tell us about residents, businesses or deliveries that need to keep using an entrance while the roof is being worked on.
For older or architecturally sensitive buildings, provide any existing roof drawings, previous specifications and information about restrictions that you already know apply. We can discuss material matching and the proposed scope before an order is placed. Photographs of earlier work can also be useful, particularly where a flat roof or terrace has several layers that are not visible from above. A survey should identify what can be checked and what remains concealed.
Contact the London roofing team
Call 020 8528 3900 for London roofing enquiries, or use the estimate form with your contact details and property postcode. If you have photographs, send them through WhatsApp on 07553 337796. Keep photographs to views that can be taken safely from the ground, a window or an accessible loft. There is no need to climb onto a roof to prepare an enquiry.
The same mobile number is our emergency contact line. Explain whether water is entering now, whether the roof has loose materials and whether there is a concern for anyone inside or below. The response and work possible depend on the conditions, location and safe access. Keep people away from the affected area and do not touch electrical fittings that may have become wet.
Planning Access And Protecting Your Property
A roof cannot be assessed properly from a price list. Its height, shape, covering and access all affect the work. A rear extension reached through the house needs a different plan from a front slope beside a public pavement. Tell us about narrow side passages, shared gardens, basement lightwells, parked vehicles and any part of the property that must remain in use. These details help establish how materials and removed roofing can be handled without creating an avoidable obstruction.
Where scaffolding or another access arrangement is needed, that should be identified in the scope before the work is booked. For a flat, leasehold property or shared roof, the person commissioning the work may need to involve the freeholder, managing agent or neighbouring owner. Please tell us who can approve the works and provide access. We can then discuss the roof with the right person and avoid agreeing work on an area that is outside your responsibility.
What Your Roofing Quote Should Cover
The visible surface is only part of a roofing job. A useful quotation describes the affected roof section, the preparation, the proposed materials and the treatment of adjoining details. Access, removal of old materials and waste handling should be clear. Where damaged timber or a wet deck may be concealed, the quote should explain what can be assessed beforehand and how additional findings will be discussed. You should not have to infer what is included from a single line and a total price.
Compare the proposed work as well as the figure. One quote may cover a small repair while another includes renewal of the surrounding covering or drainage details. Ask why each option is being recommended and what will remain untouched. A larger project may also require decisions about insulation, ventilation, rooflights or the finished roof height. Those decisions belong in the planning conversation, before materials are ordered or a roof is opened.
From The First Visit To The Final Check
Alliance Roofing London keeps its roofing work in-house. The owner oversees projects and the final sign-off, giving you a point of accountability for the agreed work. Before starting, we discuss access, the area being repaired or replaced and the arrangements for keeping the property protected. If opening up the roof reveals a condition that changes the scope, the finding needs to be explained before a different course of work is agreed.
At completion, the useful question is not simply whether the roof looks new. The repaired junctions, drainage routes and any adjoining surfaces should be checked, and removed materials should be cleared from the working area. Ask what has been repaired, what has been retained and whether any separate maintenance remains. Keep the written scope and any photographs together, especially if you are looking after a rented property or coordinating work for other owners.
Looking After The Roof Afterwards
Keep an eye on the roof from ground level after strong winds or sustained rain. A new damp patch, overflowing gutter or displaced piece of covering is worth reporting before the next wet spell. Do not climb onto the roof to investigate, and do not assume a flat roof or rooflight can take your weight. Photographs from a safe window or the garden often provide enough information for an initial discussion.
Regular checks should suit the roof rather than follow a generic treatment package. Trees can increase the amount of debris reaching gutters and outlets, while a roof terrace needs its drainage kept clear beneath or around its walking surface. Tell us about previous repairs and keep notes on when a leak appears. That history can help separate a new fault from moisture that is still drying out after an earlier leak.

