
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.


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

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.

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

The work
How We Carry Out Commercial Roofing
The main stages of the job, from the first inspection to the final check.
Survey and Report
We inspect the roof areas, outlets and edges, then provide a condition report with photos and recommendations.
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.
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.
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?
Do you provide condition reports for landlords and managing agents?
Which flat roof system suits a commercial building?
How often should a commercial roof be inspected?
How is access arranged on a commercial roof?
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.
Get in touchAreas 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
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