Glass that never
needs asking about.

• Interior glass, frame, track and sill detailing on a recurring schedule
• Exterior storefront and low-rise glass, typically reached from ground level or a ladder
• Curtain wall and atrium glass, which may require lift access or rope access depending on height
• Post-construction glass cleaning to remove film, overspray and construction residue

Frame, track and sill detailing is easy to leave out of a scope entirely, but it's usually where dirt accumulates fastest and where it's most visible to anyone standing at an entrance. A window that's spotless but sitting in a grime-lined track still reads as a building nobody's maintaining.

Frequency isn't just about appearance. Glass left too long between cleanings accumulates a film that's harder to remove with each passing cycle, which is how a quarterly schedule quietly turns into a semi-annual restoration job. Setting the right frequency up front is cheaper than catching up on neglected glass later.

Hard water leaves calcium and mineral residue behind as it evaporates. On glass near landscaping, sprinklers or drip irrigation, that residue accumulates with every watering cycle. Left long enough, the minerals can etch the glass surface itself rather than sitting on top of it — at which point cleaning no longer restores the glass, and only replacement does.

Restoration is assessed in person, because there's no way to tell from a description alone whether a deposit is still surface-level or has already etched the glass.

The same overspray that spots glass also leaves residue on adjacent frames, sills and nearby hardscape, which is why hard-water restoration is usually scoped together with a look at the irrigation pattern causing it. Fixing the spray direction or run time on a sprinkler head is often cheaper than repeatedly restoring the glass it keeps hitting.

Restoration methods for surface-level mineral deposits are more aggressive than routine cleaning and are not appropriate for every glass type or coating — some low-E and coated glass products can be damaged by the wrong restoration approach, which is another reason it's assessed rather than applied as a default.

Building owners carry real obligations under this standard: before a rope descent system is used, the owner must tell the employer in writing that each anchorage has been identified, tested, certified and maintained. A vendor proposing rope access on a building should ask for that letter, and a facility manager should be able to produce it.

Low-rise work — most storefronts, single-story retail and typical office exteriors — is reached with ladders or a lift and doesn't require rope access at all. The access method is matched to the building, not applied uniformly, and a facility manager evaluating a vendor for taller glass should ask which method they're actually using before assuming rope access is involved at all.

See post-construction cleaning for how that first pass is scoped separately from the ongoing schedule, and pressure washing for exterior surfaces below the glass line that get cleaned on their own cycle.

For retail and office buildings in Ontario, Riverside and the rest of the Inland Empire, Nexara writes these into one annual plan: a recurring interior and exterior schedule, a hard-water check built into the same visit, and one-off post-construction passes scoped as they come up, rather than negotiating each visit separately.