Commercial roofing sheet installation and repairs in Sittingbourne

Flat roof replacement in Sittingbourne and Swale built to stay watertight

From pooling water on residential extensions to split felt on garages across Sittingbourne, I replace failing flat roofs with seamless GRP fibreglass and durable high-performance torch-on systems. With over thirty years on Kent roofs, every project is surveyed and installed directly by Chris Baker with no subcontractors. Call 01795 904566 to arrange an honest site survey.

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Flat Roof Replacement in Sittingbourne

I have been replacing flat roofs in Sittingbourne and across North Kent for over thirty years. At C.L. Baker, I specialise in high-performance GRP fibreglass and multi-layer torch-on felt systems designed for durability. Whether you are dealing with a leaking extension in Bapchild or require a robust solution for a commercial premises on the Eurolink, I manage every stage of the work personally. I do not use subcontractors or sales teams; you get my thirty years of experience directly on your roof. I focus on solving common local issues like pooling water and coastal UV degradation, which are particularly prevalent for properties in Sheerness and along the Swale estuary. If your current roof is failing or showing signs of age, I will provide a plain-speaking assessment of whether a full strip and replacement or a high-performance overlay is the best route for your property. All my replacements satisfy current Building Regulations Part L regarding thermal insulation. For an honest quote and a guaranteed watertight finish from a local owner-operator, call me directly on 01795 904566. I return every call and keep you updated throughout the project.

Deal directly with your roofer from survey to sign-off

With over thirty years of trade experience across Sittingbourne, Chris Baker personally inspects your property, quotes the job, and completes the work with no salesmen or subcontractors.

What is included

  • Complete strip of perished felt, asphalt, or failing deck
  • Joist condition check and structural timber repairs
  • Tapered firrings installed to eliminate standing water and ponding
  • New 18mm tongue-and-groove OSB3 structural decking laid
  • Seamless GRP fibreglass system or multi-layer high-performance felt
  • Code 4 milled lead flashings and heavy-duty drip trims fitted
  • Building Regulations Part L thermal insulation upgrades incorporated
  • Photographic sign-off and direct installation by Chris Baker

Signs your flat roof needs replacing

  • Persistent ponding water that fails to drain away, indicating deck sagging and failed falls
  • Visible blistering, cracking, or tearing across aged bituminous felt coverings
  • A soft, spongy, or bouncy feel underfoot showing internal rot in the timber decking
  • Water ingress, brown damp rings, or peeling plaster on ceilings beneath the roof deck
  • Lifting perimeter edge trims or perished lead step flashings pulling away from the brickwork

Flat Roof Replacement in Sittingbourne: our recent work

Every photo is one of our own jobs.

C.L. Baker roofing vans parked outside a domestic property with roofers working on scaffoldingSeamless grey GRP fibreglass flat roof installation on a residential garage in KentC.L. Baker Kent branded roofing van parked on a residential road in SittingbourneCommercial roofing sheet installation and repairs in SittingbourneC.L. Baker roofing vans parked outside a domestic property with roofers working on scaffolding

How it works

  1. 01

    Thorough Deck Survey

    I inspect your roof deck and drainage falls in person to recommend the right GRP fibreglass or high-performance felt system.

  2. 02

    Plain-Speaking Quotation

    You receive an honest, fixed-price quote covering all timber decking, Part L insulation upgrades, and premium materials.

  3. 03

    Direct Hands-On Installation

    I carry out the strip and replacement directly using exterior OSB3 boards and seamless GRP resins or torch-on felt without subcontractors.

  4. 04

    Watertight Inspection & Sign-Off

    We dress all perimeter lead flashings, clear every trace of debris from your property, and verify your new roof is completely watertight.

With over thirty years on Kent roofs, I personally strip failing flat coverings back to sound timber decking to install seamless, watertight GRP fibreglass or high-performance felt systems built to endure.

Flat Roof Replacement in Sittingbourne: your questions answered

Do I need Building Regulations approval to replace my flat roof in Sittingbourne?

Yes, if you are replacing more than 25% of the roof's surface area, you must notify Building Control. This is a legal requirement under Part L of the Building Regulations, which focuses on thermal efficiency. When I strip back your old roof, I usually have to upgrade the insulation to meet current standards. In this area, we work with the STG Building Control Partnership (covering Swale, Medway, and Canterbury). I can talk you through this process during my site visit to make sure your project stays compliant.

How long does a GRP fibreglass flat roof last compared to traditional felt?

While modern high-performance felt is very reliable, GRP fibreglass generally has a longer lifespan because it is a single, solid sheet of reinforced resin. It doesn't have seams that can pull apart over time. In a coastal environment like Sheerness or Whitstable, GRP often performs better against UV degradation and salt spray. A well-installed GRP roof can easily last 30 years or more, whereas felt typically carries a shorter life expectancy, though it remains a very durable and slightly more budget-friendly option.

Do you use subcontractors or agency labour on site?

No. This is a core part of how I run C.L. Baker Kent. When you hire me, you get my thirty years of experience on your roof. I personally survey every job, manage the site, and carry out the work. I don't believe in subbing out contracts to third parties because I want to be personally accountable for the quality of every tile, felt sheet, and lead flashing I install.

What causes flat roof leaks in Kent properties?

In our part of the world, "ponding" is the most common killer of flat roofs. This happens when the roof deck sags or wasn't built with a slight fall, causing rainwater to sit in deep puddles. Over time, the weight and the constant moisture rot the underlying timber or perish the felt. During a flat roof replacement in Bapchild or Sittingbourne, I check the structural joists and can install "firring strips" to create a proper slope, making sure water runs straight into your gutters instead of sitting on your roof.

Flat Roof Replacement in Sittingbourne and across

Related services

Guides

Why Flat Roofs Fail in Sittingbourne and North Kent

Flat roofs are often the most vulnerable part of a property because they lack the natural runoff of a pitched roof. From the industrial units at Eurolink to the residential terraces in Chalkwell, I frequently see the same issues: blistering felt, failed solar reflective paint, and standing water. On older extensions and garages, the underlying decking often degrades due to historical leaks that have been ignored for too long. If water is pooling on your roof, the membrane is likely at the end of its life. I inspect the rafters and the deck itself to ensure that when we install a new system, it sits on a perfectly sound foundation.

Carolyn

Google review · 5.0 ★

The work was carried out efficiently and well and I am very pleased with the result.

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Emma Woodcock

Google review · 5.0 ★

The work force went above and beyond to do the job, Very polite, great communication and happy with the work completed. Would definitely recommend these men"

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chloe

Google review · 5.0 ★

Roof repair on my tiled roof. Good communication and a fair price! Would highly recommend 5🌟

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kristie baker

Google review · 5.0 ★

Great service, would recommend.

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david checksfield

Google review · 5.0 ★

Re: refelt garage roof ,Chris was very helpful, and his lads worked very hard on a very hot day, clean and tidy,great finish highly recommend

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Our guarantee

GRP Fibreglass vs High Performance Felt: Which is Right?

Choosing the right material depends on your building type and exposure. For residential extensions, I often recommend GRP fibreglass roofing. It provides a seamless, continuous resin finish that is incredibly tough and resists the UV degradation we see on coastal properties in Sheerness and Whitstable. It is ideal for roofs with complex shapes or heavy foot traffic. Alternatively, for larger or commercial projects, I use a high-performance three-layer torch-on felt system. This includes a venting base layer to prevent moisture entrapment, followed by a reinforced underlay and a high-grade polyester cap sheet. Both methods require skilled detailing at the edges, outlets, and wall fillets to ensure the roof remains completely watertight.

Covered

  • Workmanship on full strip and retile projects and new tiled roofs
  • Milled lead flashings, dry valleys, ridges, and verges we install
  • Seamless GRP fibreglass and high-performance flat roof systems
  • Targeted roof repairs as agreed on your written quotation

On top

  • Tile, slate, and membrane manufacturer product warranties
  • Clear photographic evidence of battening, felting, and finished work
  • Direct contact with Chris Baker throughout—no sales reps or subcontractors
  • Guidance on Building Regulations Part L requirements for re-roofs

Not covered

  • Extreme storm damage, gale uplift, or tree strikes occurring after completion
  • Adjoining roof pitches, shared walls, or areas outside our agreed scope
  • Subsequent foot traffic or modifications carried out by third-party trades
  • Water ingress caused by uncleaned, blocked, or overflowing gutters

The guarantee for your job is written on your quote before you agree to anything. Read the full guarantee.

Roof trouble in Sittingbourne? Speak directly with Chris Baker

Call 01795 904566 for straightforward advice from an experienced local roofer. I inspect every roof myself, explain the exact issue plainly, and provide a clear, no-obligation quote with zero subcontractors.