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Room by room

Stairwell & Landing Secondary Glazing

Warm air rising up the stairwell and dumping straight out through a single-glazed window is the reason most people fit secondary glazing in this room. The stack effect is broken at its exit point, which lifts the temperature on the whole upper floor. We cover South Yorkshire, North Derbyshire and the surrounding towns.

What goes in, and why

Typical openinga tall half-landing sash or a stained-glass window over the stairs
Glass specificationslim satin profiles set into the reveal, clear glass so decorative panels stay legible
Operationaccess is worked out first — half-landing windows need a tower or a stair-legged platform, which we bring rather than improvise
Main benefitthe stack effect is broken at its exit point, which lifts the temperature on the whole upper floor
Stairwell glazing installed in a South Yorkshire home — a tall half-landing sash or a stained-glass window over the stairs
Stairwell glazing — slim satin profiles set into the reveal, clear glass so decorative panels stay legible.

A whole-house residential install is normally completed within a single working day.

Installs are room-side only, so scaffolding is never needed and the exterior is untouched.

Glass specification is decided after the survey, not before — the same room can need two different thicknesses.

Thermal figures quoted are whole-window, not centre-pane, which is the honest way to state them.

What makes this room different

A stairwell is a chimney: warm air from the whole house collects at the top and leaves through whatever the weakest surface is, which is nearly always the landing window.

Historic stained glass fails from thermal shock and wind loading far more often than from impact; a room-side pane removes both.

Half-landing access is the practical constraint, so the survey records platform requirements before a fitting date is offered.

Will it hide the stained glass? Clear glass in a slim profile sits behind the panel and leaves the colour and lead lines fully visible — it also shields the panel from thermal shock, which is the main cause of cracking.

Order of work

  1. Step 1

    Send a photo and rough dimensions for an indicative price within a working day.

  2. Step 2

    On-site survey and templating of the opening.

  3. Step 3

    Manufacture, typically two to three weeks.

  4. Step 4

    Room-side install with no external access required.

Recent installs nearby

Kelham Island loft conversion

Four large steel-frame factory openings sealed with slim satin-anodised horizontal sliders. Post-install U-value 1.87 W/m²K.

Bennetthorpe villa Low-E retrofit

Full ground-floor sash retrofit with Low-E secondary sliders — gas usage down 22% over the following heating season.

Edgerton stone-mullioned villa

Whole-house retrofit of hinged secondary units behind original mullioned casements. U-value 1.94 W/m²K on tested rooms.

Stairwell glazing — the short version

Close the biggest uncontrolled heat path in a period house and protect stained glass, using slim satin profiles set into the reveal, clear glass so decorative panels stay legible. Access is worked out first — half-landing windows need a tower or a stair-legged platform, which we bring rather than improvise.

Common questions

Will a secondary pane damage stained glass?

No — it protects it. The most common cause of cracking in historic glass is thermal shock and wind pressure, and a room-side pane shields against both.

Can you reach a high half-landing window?

Yes. We record the access requirement at survey and bring the right platform, rather than working off a ladder over a stairwell.

Will the colours still show?

Yes — the secondary pane is clear and slim-framed, so the panel reads from inside almost exactly as before.

Conservation or listed property?

We prepare the drawings and specification your conservation officer will ask for, free with the quote.