Heritage Glazing & Listed Building Glass Restoration
Heritage glazing at height is an access and conservation problem together: historic glass, traditional metal framing and live listed buildings that cannot take a scaffold shutdown.
Heritage and listed-building glazing at height in London
ARRT Group delivers commercial heritage glazing and listed-building glass restoration at height across London and the South East, with UK-wide programmes where required — roof lanterns, historic glazed roofs and elevated heritage glass reached by rope or spider access. Named proof at Alexandra Palace, a Grade II listed London landmark — multiple projects over 10 years, including external sealing to the three major glazed roofs, over 350 glass units changed (including 194 glass panes replaced on one roof and 112 × 7mm Georgian wired glass panes replaced on another), and 4 replacements on the rose stained-glass window. Commercial and institutional envelopes only — not a domestic glazing offer.
ARRT Group delivers commercial heritage glazing and listed-building glass restoration where specialised high-level access is required — roof lanterns, historic glazed roofs, atrium overheads and elevated heritage elevations. We survey the defect, match the glass type where the brief allows, and reach the work with rope access, powered access or controlled temporary works so the building stays open and the fabric is protected.
This is commercial and institutional heritage work for landlords, estates, FM providers and main contractors — not a domestic glazing offer. Scopes typically include failed or weathered heritage units, traditional metal-framed roof lantern maintenance, resealing and weatherproofing of historic glazed roofs, and make-safe pending permanent restoration glass.
Grade II glass roofs, domes and roof lanterns on live venues
Named proof of high-level heritage glazing in London at Alexandra Palace — multiple projects over 10 years. Works have included external sealing to the three major glazed roofs, over 350 glass units changed (including 194 glass panes replaced on one roof and 112 × 7mm Georgian wired glass panes replaced on another), and 4 replacements on the rose stained-glass window. A named two-day heritage roof-lantern maintenance job on a traditional metal-framed glazed roof, reached by rope access without unnecessary scaffolding — see the Alexandra Palace heritage roof case study. Broader Alexandra Palace high-level glazing context sits on the Alexandra Palace hub, with related capability in rope access, high-level glass replacement and atrium & rooflight glazing.
For a leaking historic glazed roof or roof lantern, see glass roof leak repair. For glazing carried out on ropes, see rope access glazing.
What we deliver
- Heritage and listed-building glass survey at height
- Traditional metal-framed roof lantern maintenance and weatherproofing
- Heritage glass replacement and like-for-like unit matching where specified
- Historic glazed roof resealing, gasket and capping remediation
- High-level make-safe and temporary weatherproofing pending restoration glass
- Photographic record suitable for estates, conservation and insurance files
How the work is done
| Focus | Commercial / listed / heritage envelopes — London & South East as standard |
|---|---|
| Access methods | Rope access (IRATA), MEWP / spider boom, controlled temporary works |
| Typical works | Roof lanterns, heritage glass, historic glazed roofs, high-level resealing |
| Working hours | Daytime, out-of-hours and possession windows on live venues |
| Deliverables | Survey notes, RAMS, photographic close-out |
Questions we get asked
Do you only work on Grade-listed buildings?
No — but listed and heritage envelopes are a core high-level brief. We also work on historic commercial glazing and traditional roof lanterns where access and glass matching matter as much as the listing status.
Is this a domestic heritage window service?
No. ARRT Group is a commercial high-level access and glazing contractor. Heritage glazing here means roof lanterns, historic glazed roofs and listed-building glass reached at height — not domestic sash or window replacement.
Can you avoid scaffolding on a heritage roof?
Often yes. Rope access and compact powered access (including spider boom lifts where the floor and brief allow) reduce scaffold load on historic fabric and keep live venues trading. We confirm the method after survey.
Can you replace Georgian wired glass on a listed roof?
Yes. Georgian wired glass is common on older glazed roofs and roof lights. On one roof at Alexandra Palace, ARRT Group replaced 112 × 7mm Georgian wired glass panes; we match thickness and wire pattern where the brief and conservation requirements allow.
What proof of heritage work can you show?
Named Alexandra Palace work: multiple projects over 10 years, including external sealing to the three major glazed roofs, over 350 glass units changed (including 194 glass panes replaced on one roof and 112 × 7mm Georgian wired glass panes replaced on another), and 4 replacements on the rose stained-glass window — plus a named two-day heritage roof-lantern rope-access job. Read the case study linked above and the Alexandra Palace hub.
Often needed alongside this
High-Level Glass Replacement
Failed, cracked, blown or vandalised units replaced at height — from single panes to full elevations, with access designed around your building.
View service 08Rope Access
IRATA-trained technicians reaching what scaffold cannot justify — fast to mobilise, minimal footprint, no loss of ground-level trading.
View service 03Atrium & Rooflight Glazing
Overhead glazing repaired and refurbished over live public space — with the temporary works, protection and rescue planning that overhead work demands.
View service
Need a specialist on site?
Send us the building, the defect and a photograph if you have one. We will tell you the access method, the likely scope and a realistic programme.