Hayes, BromleyPlatinumflatroofingltd@gmail.com - 07533 92109307753 651460 HomeAboutServices Service Areas Our WorkReviewsContact07533 921093Request Estimate Flat roofing Bromley - Service areas - Flat roofing in Sevenoaks Service areas · Sevenoaks # Flat Roofingin Sevenoaks Sevenoaks and its surrounding villages mix substantial period property with high-specification contemporary extensions, two very different flat roofing problems. We specify and install the system each one actually needs, at a fixed price, with a 10-year workmanship guarantee. Request your free estimate07533 921093 Free fixed-price quotation · 16 years in flat roofing · fully insured Local coverage ## Flat Roofing Specialists Working In Sevenoaks Every Week ### The area we cover We work across Sevenoaks town and the villages around it: Riverhead, Dunton Green, Otford, Kemsing, Seal, Chipstead, Westerham, Brasted and out towards Sevenoaks Weald. It is a comfortable run from Bromley down through Orpington, and a journey we make regularly enough that arranging a survey is straightforward. ### Getting to you Sevenoaks is a little further out than our Bromley and Orpington core, but firmly inside the area we serve week to week. We do not publish a guaranteed response time, a promise that only holds in quiet weeks is worthless, but you will get an honest answer when you call, and where there is an active leak we will tell you the soonest we can realistically be on the roof. ### Property types we work on Sevenoaks has a high proportion of large detached and period property: Victorian and Edwardian houses with parapets, bay roofs, box gutters and lead-detailed junctions, plus older village properties in Otford, Kemsing and Seal where roofs meet stone, tile-hanging and irregular geometry. Alongside that sits a strong market for architect-designed contemporary extensions with wide single-ply or liquid-finished roofs, large frameless rooflights, green roofs and roof terraces. The town centre and surrounding business parks add offices and commercial premises to the mix. ### What we are called out for The work we quote most in Sevenoaks is reinforced liquid waterproofing to complex period detailing, single-ply installation on new architect-designed extensions, warm-roof build-ups where habitable space sits below, roof terrace and balcony waterproofing, rooflight kerb remediation on recent builds, and detailed inspections with photographic reports on larger properties where the owner wants a clear picture before spending. - Sevenoaks town - Riverhead - Dunton Green - Otford - Kemsing - Seal - Chipstead - Westerham - Brasted Services ## Flat Roofing Services Available In Sevenoaks ### Liquid waterproofing The right system for Sevenoaks period detailing, parapets, box gutters, valleys and junctions with tile-hanging or stone, waterproofed seamlessly. More on liquid waterproofing ### Single-ply roofing Clean, welded membranes for contemporary Sevenoaks extensions where the roof is visible from upper windows and the finish matters. More on single-ply roofing ### Warm roof systems Fully specified warm roof build-ups for habitable extensions and conversions, designed to control condensation as well as rain. More on warm roof systems ### Rooflights Rooflight kerbs formed and weathered as part of the roof system, the most common failure point on high-specification new extensions. More on rooflights ### Balconies & walkways Roof terraces and balconies on larger Sevenoaks properties, waterproofed to take traffic and finished to suit the architecture. More on balconies & walkways ### New builds & extensions Flat roof waterproofing programmed into your build sequence and coordinated with the other trades on site. More on new builds & extensions ### Flat roof refurbishments & remedial works Ageing flat areas on period and mid-century houses stripped back, corrected and rebuilt rather than patched over. More on flat roof refurbishments & remedial works ### Roof inspections & photographic reports Detailed photographic inspection reports for owners, buyers and agents on substantial properties. More on roof inspections & photographic reports View all flat roofing services Why us ## Why Property Owners In Sevenoaks Choose Platinum ### Detailing is where we earn our fee Sevenoaks roofs are rarely simple rectangles. Sixteen years of flat roofing means the upstands, abutments, box gutters and terminations are designed and executed properly, not improvised on the day. ### Systems from the manufacturers you would expect Sika, Danosa and Bauder trained, with IKO Armourplan and Siltec experience. Installed to manufacturer specification, with manufacturer-backed guarantees available on request where the system allows. ### A finish that suits the property On visible roofs, terraces, extensions overlooked from bedrooms, membrane colour, trim lines and edge details are agreed with you before we start rather than left to chance. ### Fixed price and a written guarantee Free fixed-price quotations after a proper survey, full insurance, asbestos awareness training for older buildings, and a 10-year workmanship guarantee. Local roof problems ## The Flat Roof Failures We See Most In Sevenoaks ### Lead-detailed parapets and box gutters Period Sevenoaks houses often drain through concealed box or parapet gutters lined in lead. Movement, thermal cycling and decades of bitumen patching leave joints that open under sustained rain, and the water goes into the wall head. Reinforced liquid waterproofing over a properly prepared substrate is normally the sound long-term answer. ### Junctions with tile-hanging, stone and irregular geometry In Otford, Kemsing, Seal and the older parts of town, flat areas frequently meet hung tiles, ragstone or timber framing at awkward angles. Standard sheet terminations do not suit those substrates; the detail has to be designed for the wall it meets or it will fail at that line. ### Large rooflights on new extensions High-specification Sevenoaks extensions almost always include big rooflights. Where the kerb was formed by a general builder, the membrane is often dressed short or fixed inadequately, and water tracks in behind the frame within a few winters. Reforming and re-weathering the kerb solves it permanently. ### Roof terraces over habitable rooms Terraces above living space are unforgiving: threshold heights are tight, drainage is often a single outlet, and the wearing surface hides the membrane from inspection. Getting falls, upstands and drainage right at specification stage is the whole job. ### Exposure and tree cover in the villages Properties on the Greensand ridge and around the villages take significant weather and heavy leaf fall from mature trees. Outlets silt, moss establishes on shaded membranes, and unmaintained roofs age noticeably faster than the same build-up in a sheltered urban street. Our process ## Five Steps from First Call to Guaranteed Roof - 01 ### Your enquiry Call or send the form with your postcode and a short description of the roof. We ask practical questions up front so the survey is not wasted. - 02 ### On-site survey We get onto the roof, check the deck, falls, outlets, upstands and existing build-up, and photograph what we find rather than guessing from the ground. - 03 ### Fixed-price quotation A free, written, fixed-price quotation setting out the system specified, the detailing included and what is excluded. No day-rate creep. - 04 ### Installation Programmed around your access and, on commercial sites, supported by RAMS. Materials installed to the manufacturer's specification by trained installers. - 05 ### Sign-off & guarantee Final inspection with you, the site left clean, and a 10-year workmanship guarantee issued. Manufacturer-backed guarantees are available on request where the system allows. In detail ## Specification, Access & Coverage In Sevenoaks ### Choosing between liquid and single-ply on a Sevenoaks roof The decision comes down to geometry and substrate. Where a roof is large, reasonably simple and the deck is sound, single-ply gives an excellent, consistent, factory-made membrane with hot-air welded laps and a long service life, ideal for contemporary extensions. Where the roof is small but full of detail, or where it meets stone, tile-hanging, lead or a set of stepped abutments, a reinforced liquid system applied wet and reinforced with fleece is the more reliable choice: it forms a continuous membrane across every upstand and outlet without laps at the vulnerable points. On many Sevenoaks properties we specify both on the same building, sheet to the field, liquid to the detailing, because that combination gives the best result rather than the neatest single line on a quotation. ### Working on period and high-value property Substantial and older properties need more care than a straightforward garage roof. We survey before quoting, photograph what we find, and set out exactly what is included. On site that means protecting finishes and landscaping, agreeing access and scaffold positions in advance, no torch work near historic timber, controlled tear-off with nothing left open overnight, and a clean site each evening. Where an older Sevenoaks property may contain asbestos-based products in an old build-up, our asbestos awareness training means we stop and advise on proper testing rather than disturbing it. Where the property is listed or in a conservation area, we will flag the consent question early rather than after the materials arrive. ### Sevenoaks and the surrounding coverage From Sevenoaks we cover the villages around it and the wider Kent area, Westerham and Brasted to the west, Otford, Kemsing and Seal to the north, and out towards Tonbridge and the Weald. Orpington, Dartford and Bromley are all short runs back towards London, and we work across London and the South East as standard. Larger commercial flat roofing projects we will consider nationwide. ### Nearby areas we cover - Flat roofing in Orpington - Flat roofing in Dartford - Flat roofing in Kent - Flat roofing in BromleyAll service areasAll flat roofing servicesPlatinum Flat Roofing homeContact us Company No. 17149842 · Hayes, Bromley · Fully insured · 10-year workmanship guarantee Common questions ## Flat Roofing In Sevenoaks, Your Questions Answered Do you serve Sevenoaks?Yes, along with Riverhead, Dunton Green, Otford, Kemsing, Seal, Chipstead, Westerham and Brasted. We travel down regularly from our base in Hayes, Bromley. How quickly can you reach Sevenoaks?It is a comfortable run from Bromley via Orpington and well inside our regular working area. We do not publish a fixed response window, but we will tell you honestly on the phone when we can attend, and we prioritise active leaks where we can. What does a flat roof cost in Sevenoaks?It depends heavily on detailing, access and the system specified, period roofs with parapets and box gutters take more work than a simple rectangle. You get a free, written, fixed-price quotation after a survey. Do you offer emergency call-outs in Sevenoaks?Emergency leak and storm-damage call-outs are accommodated where possible. Call us and we will be straight about what we can do and when. Can you work on a period or listed property?We work on period property regularly. Where a building is listed or in a conservation area we will raise the consent question early so it is dealt with before work is programmed. Which system would you use on a Victorian box gutter?Normally a reinforced liquid system over a properly prepared substrate, because it forms a continuous membrane across the awkward geometry without laps at the vulnerable points. Do you install flat roofs on new extensions?Yes. We carry out flat roof waterproofing on new builds and extensions, programmed around your other trades and coordinated with the main contractor or architect. What guarantee do you give?A 10-year workmanship guarantee on all completed work, with manufacturer-backed guarantees available on request where the specified system and project allow. Can you provide a photographic condition report?Yes. Detailed roof inspections with photographic reports are available, which is often what owners and buyers of larger Sevenoaks properties need before committing. Are you insured?Fully insured, asbestos awareness trained, and RAMS are provided for commercial projects. ## Get a Free Fixed-Price Quote for Your Roof in Sevenoaks Tell us your postcode and what the roof is doing. We will survey it, show you what has actually failed and give you a fixed price, backed by a 10-year workmanship guarantee. Request your free estimate07533 921093 16 years in flat roofing · Sika, Danosa and Bauder trained · fully insured · 10-year workmanship guarantee Single-ply and liquid-applied flat roofing specialists serving Bromley, Kent, London and the South East. ### Services - Single-ply roofing - Liquid waterproofing - Refurbishments & remedial works - Warm roof systems - New builds & extensions - Balconies & walkways - Rooflights - Fascias, soffits & guttering ### Service areas - Bromley - Kent - London - Buckinghamshire - Dartford - Orpington - Sevenoaks - Beckenham - Croydon - Nationwide ### Contact - Hayes, Bromley - 07533 921093 - 07753 651460 - Platinumflatroofingltd@gmail.com - @platinumflatroofingltdCompany No. 17149842Fully insured · 10-year workmanship guarantee © 2026 Platinum Flat Roofing Ltd. All rights reserved.ReviewsPrivacy policyTerms & conditions Call nowFree quote