Ashlar Roofing
Commercial building with a large metal roof
Commercial Roofing ยท Greater London

Commercial Roofing across Greater London

Flat and pitched roof repairs, replacement and maintenance for commercial buildings across Greater London.

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

Commercial Roofing

Commercial Roof Repairs, Replacement and Maintenance in Greater London

A leaking roof on a commercial building affects more than the fabric. It can damage stock and equipment, put rooms out of use and disrupt the people who work or live underneath. Ashlar Roofing carries out repairs, replacement and maintenance on commercial roofs across Greater London, including shops with flats above, offices, blocks of flats, warehouses and similar premises. We work on flat roofs in felt, EPDM rubber and fibreglass, and on pitched roofs in tile and slate, along with the gutters, fascias and leadwork that go with them.

Most commercial roofs are worked on while the building stays in use, so planning comes first. We agree access, working hours and safe routes with you or your managing agent, arrange scaffold or towers where they are needed, and keep work areas separated from staff, residents and customers. For property managers, we can produce a condition report with photos showing the state of each roof area and what we recommend, which helps you budget and prioritise. Planned maintenance visits keep outlets clear and deal with small defects before they let water in.

Roofer in a safety harness working on a metal roof
Roofer cutting single ply membrane on a flat roof

What's included

What Our Commercial Roofing Service Covers

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

  • Roof surveys with photo condition reports, so you can plan and budget repairs
  • Repairs to flat and pitched roofs to stop leaks reaching stock, tenants or staff
  • Full replacement of failed flat roofs in felt, EPDM rubber or fibreglass
  • Planned maintenance visits that clear outlets and gutters and fix minor defects
  • Scaffold, towers and edge protection arranged for safe access at height
  • Work scheduled around opening hours to keep disruption to trading low

Quotes for Commercial Roofing across Greater London

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

Our work

Recent Work from Ashlar Roofing

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Why choose us

Why Choose Ashlar Roofing for Commercial Roofing

Flat and Pitched Covered

Felt, rubber, fibreglass, tile and slate roofs are all within our services, so a building with mixed roof types can be handled by one contractor.

Reports You Can Use

Photo condition reports show you what each roof area looks like and which repairs matter most.

Working Around Occupants

We plan noisy work, access and deliveries around your opening hours, tenants or staff.

Emergency Call-Outs

If a commercial roof starts leaking, we offer emergency call-outs and prioritise active leaks and storm damage.

About Ashlar Roofing

One Roofing Firm for the Whole Roof

Ashlar Roofing works on houses, flats and commercial premises across Greater London. Pitched roofs, flat roofs, chimneys, leadwork and roofline are all handled by the same firm, so you have one contact for the whole job.

Commercial building with a grey metal roof

Emergency call-outs

Leaks and storm damage prioritised

Pricing

What Affects the Cost of Commercial Roofing

Commercial roofing costs vary with the building and the work involved:

  • The roof area and the number of separate roof sections
  • The type of roof and the system chosen for repair or replacement
  • Access arrangements, including scaffold, towers and edge protection
  • Working hours needed to keep the premises open or occupied
  • Any insulation upgrades, new outlets or roof lights included in the work
Industrial building roof with metal sheeting and solar panels

The work

How We Carry Out Commercial Roofing

The main stages of the job, from the first inspection to the final check.

  1. Survey and Report

    We inspect the roof areas, outlets and edges, then provide a condition report with photos and recommendations.

  2. Plan Access and Timing

    Scaffold or towers, working hours and site rules are arranged with you, and the quote is agreed before any work starts.

  3. Carry Out the Work

    Repairs or replacement are carried out in sections where possible, with each area left watertight at the end of the day.

  4. Review and Record

    We review the completed work with you, confirm everything has been done as agreed and supply photos for your records.

FAQs

Common Questions About Commercial Roofing

Can you work while our building stays open?

In most cases, yes. Working hours, access routes and protected areas are agreed in advance, and noisier tasks can be scheduled for quieter times where that helps.

Do you provide condition reports for landlords and managing agents?

Yes. A condition report sets out the state of each roof area with photos, the defects found and the recommended repairs, which is useful for budgeting and for planning work over time.

Which flat roof system suits a commercial building?

It depends on the roof size, foot traffic, any plant on the roof and the budget. EPDM rubber suits large, simple roofs, fibreglass works well on smaller roofs with plenty of detailing, and reinforced bitumen felt is a robust option for larger areas.

How often should a commercial roof be inspected?

Twice a year is a sensible baseline, usually in spring and autumn, plus a check after severe storms. Regular inspections keep outlets clear and pick up defects while they are still minor repairs.

How is access arranged on a commercial roof?

Depending on the building, we use scaffold, mobile towers or existing roof access with edge protection. The method is agreed with you beforehand and set out in the quote.

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

Commercial Roofing across Our London Areas

We carry out commercial roofing in all of these areas and across the rest of Greater London.

  • Walthamstow
  • Stratford
  • Canning Town
  • East Ham
  • Plaistow
  • Camden Town
  • Woodford
  • Finsbury Park
  • Ealing
  • Southall
  • Richmond
  • Twickenham
  • Wood Green

Related services

Related Roofing Services

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