Ashlar Roofing
Flat roof with raised edges on a residential building, Twickenham
Flat roofing ยท Twickenham

Flat Roofs in Twickenham

Flat roof leaks in Twickenham traced to the source, then repaired or replaced on an agreed quote.

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  • Emergency call-outs
  • Pitched and flat roofs
  • Homes and commercial
  • Covering Greater London

Flat Roofs in Twickenham

Flat Roof Repairs and Replacements in Twickenham

A small flat roof leak is easy to live with for a while, but water that gets under the covering spreads through the deck and into the joists, and what could have been a patch becomes a full replacement. Ceilings below can also suffer, adding internal repairs to the bill. Ashlar Roofing repairs and replaces flat roofs in Twickenham, covering TW1 and TW2 across the London Borough of Richmond upon Thames, on houses, flats and commercial units.

We start by finding where the water is getting in, which is not always above the stain. If the deck is still dry and the covering has some life left, a repair to the split, seam or flashing is the sensible step. If the boards have softened, we explain why a new EPDM, felt or GRP roof is better value, and quote for it clearly before anything is booked. Where both options are reasonable, you can compare the two.

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Roofer working on a garage flat roof
New torch-on felt being laid on a flat roof

What's included

What a New or Repaired Flat Roof Includes

The main parts of the job, each listed in your quote.

  • An inspection of the existing deck and timbers, so a new covering is laid on a sound base rather than over hidden rot.
  • A choice of rubber, felt or fibreglass covering, matched to the roof's size, use and budget so you are not paying for more than it needs.
  • Insulation options when the roof is replaced, helping to keep the room below warmer in winter and cooler in summer.
  • Correct falls and outlets, so rainwater drains away instead of pooling and wearing out the covering early.
  • Properly detailed upstands, trims and flashings where the roof meets walls, which is where many flat roof leaks begin.
  • Repairs to splits, blisters and failed seams on existing roofs, where the deck is sound and a repair makes more sense than replacement.
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More about our flat roofs service

Get a Free Quote for Flat Roofing in Twickenham

Tell us what is happening with your roof and we will arrange a visit and a quote.

Get a Free Quote 0800 158 5636

Pricing

Flat Roof Costs in Twickenham

Repair or replace, a Twickenham flat roof quote takes account of:

  • The size of the roof and how many upstands, outlets or rooflights it has
  • The membrane chosen (EPDM, torch-on felt or GRP)
  • The condition of the deck and joists once the old covering is lifted
  • Whether insulation is added to bring the roof up to current standards
  • Access, including whether materials have to be carried through the house
Finished flat roof on a single storey extension

How it works

How Flat Roofing in Twickenham Is Arranged

What happens from your first call or message to the finished work.

  1. Book a Survey

    Tell us about the roof by phone or through the form. Photos on WhatsApp of the roof and any stains inside help us understand the problem before we visit.

  2. Inspection and Quote

    We check the covering, deck, falls and edge details, then recommend a repair or a replacement and set out a quote that is agreed before work starts.

  3. Preparing the Roof

    On the day, the old covering is stripped where needed, the deck is checked and any rotten boards are replaced so the new roof has a solid base.

  4. Laying and Finishing

    The new membrane or repair is installed with its trims and flashings, then we review the completed work with you and confirm everything has been done as agreed.

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FAQs

Twickenham Flat Roofing Questions

Should I add insulation to my flat roof?

If the roof is being replaced, it is a good time to consider it. A warm roof build-up places insulation above the deck, which helps keep the room below comfortable and reduces the risk of condensation in the roof structure.

Which flat roof covering suits a rear extension in Twickenham?

For most rear extensions, EPDM rubber or torch-on felt is a practical choice, while GRP fibreglass suits roofs that double as a balcony. We discuss the options for your roof during the survey.

What causes flat roofs to leak?

Common causes are cracked or lifted felt, failed seams, blocked outlets, damaged flashings at the wall junction and impact damage. Many leaks start at the edges and upstands rather than in the middle of the roof.

Do you carry out flat roofing for businesses in Twickenham?

Yes. We take on commercial flat roofs across TW1 and TW2, from the rear roofs of shops to offices and industrial units. Work can be planned to limit disruption to trading.

Still Have a Question?

If your question is not answered here, get in touch and we will discuss it with you. You can also send photos on WhatsApp.

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Areas we cover

Flat Roofs across Greater London

Alongside Twickenham, we carry out flat roofing in these areas:

Covering Twickenham and Greater London

Flat Roofs across Twickenham and the rest of Greater London. Call to arrange a visit and a quote.

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