Grade II* Listed Roof Replacement, Lonsdale Square
Consent-led roof replacement using natural Welsh slate, with structural repairs, insulation, leadwork and parapet work coordinated around the listed terrace.

Roof repairs, re-roofing and technically detailed refurbishment, planned around the building, its occupants and the standard of finish the property requires.
A residential roofing contractor with a detailed approach
ER Group London undertakes roof repairs, re-roofing, leadwork and roof refurbishment for private homes across West London, Surrey and Elmbridge. The work is particularly suited to period properties, listed and conservation-area buildings, and homes where access, protection and visible detailing need careful thought.
A sound scope begins with the cause of the problem. Water ingress may be linked to the roof covering, but it can also arise at valleys, abutments, parapets, outlets, rooflights, chimney details or the junction between pitched and flat roof areas. The proposed work should reflect what is found rather than treating every symptom as a failed roof covering.
Where an architect, surveyor or estate manager is involved, ER Group London can work within the wider project information and keep roofing decisions aligned with drawings, reports, material requirements and the sequence of other trades.
Discuss your roofing project
0207 593 8080

Our Work
Selected ER Group London projects showing how roofing, access, protection and detailing are handled across listed buildings, private homes and residential roof-renewal work.
Consent-led roof replacement using natural Welsh slate, with structural repairs, insulation, leadwork and parapet work coordinated around the listed terrace.
A pitched roof area converted into a flat roof terrace with full-height access, an iDecking surface and glass guarding as part of a private-home refurbishment.
A leaking asphalt roof rebuilt as an insulated EPDM roof terrace with custom walk-on glass rooflights and a decked finish.
A verified review-led project where an initial slate-renewal scope expanded after additional remedial work to the roof structure became apparent.
Diagnosis and repair of leaks, slipped or damaged coverings, failed flashings, valleys, gutters and vulnerable roof junctions.
Planned renewal where the condition of coverings and details makes repeated isolated repair a poor long-term approach.
Repair and renewal for period, listed and conservation-area properties, with existing fabric and compatible detailing considered from the outset.
Lead flashings, valleys, gutters, abutments and other weathering details, assessed as part of the surrounding roof construction.
Repair what can be retained. Renew what has failed.
Some roofs need a focused repair; others need planned renewal of coverings, leadwork or drainage details. ER Group London’s role is to help define a technically coherent scope, explain the limitations of what can be seen and carry out the agreed work with suitable protection and control.
Period, listed and conservation-area homes
Serviceable slate, tile and associated details should be identified before a renewal scope assumes wholesale replacement.
New materials and repair methods should be selected with the existing roof, appearance and building fabric in mind.
Valleys, abutments, chimneys, parapets and penetrations are often as important to performance as the main covering.
Listed-building conditions, conservation requirements, drawings and survey findings should inform the work where they apply.
Photographs and condition records before and during opening-up help distinguish retained fabric from newly exposed defects and give the project team a clearer basis for any scope change.
Sensitive roof areas should be opened in a controlled sequence, with temporary weathering and protection planned around the retained fabric and occupied parts of the property.
Working with professional project teams
ER Group London works with architects, building surveyors, designers and residential property managers where roofing needs to align with drawings, specifications, existing fabric and the sequence of other work.
We review the available project information, coordinate roof interfaces and access, and raise site conditions or scope questions clearly so the roofing package can be managed within the wider programme.
Discuss a project
0207 593 8080What clients should expect
The enquiry and initial review establish the property context, known defects, access and the information already available.
The recommendation distinguishes between a local repair, temporary risk reduction, planned refurbishment and full renewal.
Work is planned with consideration for finished spaces, occupants, neighbours and the practical movement of materials and waste.
Leadwork, drainage, rooflights, parapets, walls and adjoining roof areas are treated as part of the weathering strategy.
Concealed defects and necessary variations are explained rather than absorbed into vague descriptions of additional work.
The completed scope, relevant observations and sensible maintenance priorities can be recorded for future reference.
Insights
Practical guidance for homeowners and professional teams planning roofing work on private, period and high-value homes.
What to check before work begins, from permissions and existing materials to surveys, roof details, access and protection.
How access, temporary weathering, protection, deliveries and communication can be planned around the people and finishes inside the property.
A practical guide to visible defects, access limitations, drone imagery, concealed conditions and the next steps after inspection.
From first review to handover
Share the property address, the symptoms or intended works, relevant photographs and any drawings, reports or previous repair history.
The visible roof condition, likely routes of water entry, access and critical junctions are reviewed using the level of inspection appropriate to the property.
The proposed work sets out what is included, the assumptions made, relevant limitations and any decisions or specialist input still required.
Access, protection, temporary weathering, sequencing and communication are established before the agreed roofing work proceeds.
The completed work is reviewed, outstanding observations are recorded and any sensible future inspection or maintenance priorities are explained.
Project protection
Access, temporary weathering, protection of occupied areas and coordination with other trades are considered as part of the proposed work, not left until the first day on site.
ER Group London carries £10 million Employers’ Liability insurance and £5 million Public Liability insurance. Current documentation is available for review as part of the pre-contract information.
Speak to our team
0207 593 8080


