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ARRT GROUP High-Level Access & Glazing
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Capability

Capability & representative scopes

What we are actually called in for, how we access it and what you receive at close-out. Where permitted we name the site — starting with Alexandra Palace. Other scopes stay anonymised for commercial and FM instructions.

Single glazed Victorian heritage glass roof at Alexandra Palace — ARRT high-level Georgian wired glass works via spider / powered access Named case study
Alexandra Palace

Multiple projects over 10 years on a live Grade II venue

Multiple projects over 10 years of high-level glazing and difficult-access works history at Alexandra Palace: commercial glass replacement, façade cleaning, decorating and roof repairs on a live Grade II London venue. Across the programme: 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 on another roof — plus 4 rose stained-glass replacements. Photographic close-out on every job. (ARRT Group Ltd foundingDate 2026-03-13 — the decade is venue delivery, not Ltd age.)

Alexandra Palace hub
Rope-access technician with a blue bucket on the Victorian glass dome at Alexandra Palace
Alexandra Palace

Heritage roof glazing works

Specialist high-level glazing maintenance supporting the preservation and weatherproofing of a historic glazed roof lantern, reached by rope access.

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Single glazed Victorian heritage glass roof at Alexandra Palace: tracked spider boom lift, site barriers in the glazed atrium
Alexandra Palace

High-level glazed roof access

Specialist high-level access in a large glazed atrium, using a tracked spider boom lift to the upper roof structure and internal glazing perimeter.

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Louvred roof vents on the Alexandra Palace roof with the palace statue behind
Alexandra Palace

Emergency roof vent make safe

Emergency leak repair above the Great Hall — roof ventilation louvres made safe by rope access, on site within 4 hours and resolved in a single visit.

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All case studies
Representative scopes

Anonymised commercial capability

Atrium roof refurbishment over a live concourse
Overhead glazing

Atrium roof refurbishment over a live concourse

Failed sealed units and perished capping to a large glazed atrium above an operational public space, resolved without closing the floor below.

  • Access Rope access + crash decks
  • Hours Nights & weekends
  • Outputs Photographic close-out
Full elevation reglazing to a curtain-walled office
Glass replacement

Full elevation reglazing to a curtain-walled office

Phased replacement of blown and cracked units across multiple floors of an occupied building, matched to the original unit specification.

  • Access MEWP + glazing robot
  • Phasing Floor by floor
  • Outputs Unit register & warranty
Long-standing water ingress traced and closed out
Leak investigation

Long-standing water ingress traced and closed out

Staged spray testing across a suspect elevation to isolate the true entry path, followed by targeted remediation and verification re-test.

  • Method Spray & flood testing
  • Deliverable Cause report
  • Verification Post-repair re-test
Gasket and sealant renewal to an ageing aluminium facade
Facade refurbishment

Gasket and sealant renewal to an ageing aluminium facade

Whole-elevation reseal and gasket replacement with drainage reinstatement, extending service life without capital replacement.

  • Access Rope access
  • Scope Full elevation
  • Outputs Elevation mark-up
Out-of-hours make-safe to a damaged high-level pane
Emergency response

Out-of-hours make-safe to a damaged high-level pane

Same-night attendance, exclusion zone, removal of dangerous glass at height, temporary weatherproofing and programmed permanent reglaze.

  • Response Emergency call-out
  • Access Rope access
  • Outputs Insurer photo record
AOV servicing and vent replacement programme
Life safety

AOV servicing and vent replacement programme

Condition survey of roof-mounted smoke vents, actuator and seal replacement, and like-for-like replacement of units beyond economic repair.

  • Assets Roof AOVs
  • Cycle Annual service
  • Outputs Commissioning certs
What you get

Every job closes out the same way

No handover conversation should start with "trust us". It should start with the file.

  • BeforePhotographic survey of the defect and its context, referenced to the elevation
  • DuringProgress photographs of the works in place, including hidden detail before it is covered
  • AfterCompletion record, materials data, warranty documentation and sign-off
  • NextA note of anything else we spotted while we were up there, priced if you want it
Access strategy

The method is chosen on cost and disruption

Rope accessSmall quantities, scattered defects, tall elevations, live ground floors. Fastest to mobilise, smallest footprint.
MEWP / cherry pickerStable platform for heavier units and longer duration tasks with clear, load-bearing ground.
Spider / tracked boom liftAtriums, glass domes and glazed-atrium-style occupied interiors — compact, on protected floors, so the venue below stays open.
Mast climber / cradleRepetitive work across a full elevation where a platform pays for itself.
Crane liftLarge or heavy units, usually as an out-of-hours possession with a road or plaza closure.
Temporary worksCrash decks, birdcage scaffold and netting for overhead glazing above occupied space.
Next step

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.

Request a site survey Call 020 3780 3001
Call 020 3780 3001 Request a survey