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Manor · S2

Stone mullion glazing in Manor, Sheffield

We work on stone mullion glazing across Sheffield, and Manor is one of the areas it comes up most. The reveal is deep, uneven and rarely plumb, so nothing off the shelf fits — which is why a room-side pane, rather than a replacement, is the answer here. Manor is not a conservation area, so the decision is purely technical rather than a consent question. Most enquiries here come from owner-occupiers doing one or two rooms at a time, so we price per opening rather than per house. We cover S2 continuously — Manor sits within reach of the Ring Road (A61), which is also the reason a lot of these calls are about noise.

What we find on these streets

Fixing into a timber sub-frame or the internal lining keeps historic stonework untouched and keeps the work reversible.

Hand-cut mullions vary by tens of millimetres within one window, so batch-ordering to a nominal size is the classic failure on these buildings.

Manor stock is interwar and modern replacement housing and the prevailing glazing is PVCu over original openings, which is why stone mullion glazing comes up here so often.

We template each light individually because the mullion spacing varies within a single opening on hand-cut stonework.

Manor carries no conservation designation, so the specification is decided on performance alone.

From enquiry to install

  1. Step 1

    Send a photo of the window — with chamfered stone mullions dividing narrow vertical lights we can usually tell you the likely system before we visit.

  2. Step 2

    Survey in Manor: we template each light individually because the mullion spacing varies within a single opening on hand-cut stonework.

  3. Step 3

    Manufacture to the templated sizes with your chosen finish.

  4. Step 4

    Room-side install with no external access and no alteration to the original frame.

The specification we recommend

Window typechamfered stone mullions dividing narrow vertical lights, deep-set in a thick stone wall (17th to 19th century, common in Pennine and Peak-fringe stone housing)
Underlying problemthe reveal is deep, uneven and rarely plumb, so nothing off the shelf fits
System we fithinged units templated to each light, set into the reveal face
Glass specificationLow-E as standard; these buildings are usually driven by cold and damp rather than noise
Measurementwe template each light individually because the mullion spacing varies within a single opening on hand-cut stonework
Heritage positionthe stonework is normally the listed or protected element, so fixings go into the internal lining or a timber sub-frame, never the stone

Local reference points

Area
Manor (S2)
Town
Sheffield, South Yorkshire
Housing era
interwar and modern replacement housing
Typical windows
PVCu over original openings
Landmark
Manor Lodge
Conservation area
No
Window style
Stone Mullioned Windows
Period
17th to 19th century, common in Pennine and Peak-fringe stone housing
Stone mullion glazing installed in Manor, Sheffield — chamfered stone mullions dividing narrow vertical lights, deep-set in a thick stone wall
Stone mullion glazing of the kind found throughout S2. Deep stone reveals get warm enough to stop the damp patching that appears at the reveal corners.

Quotes are written, itemised per opening, and hold for 60 days.

Every opening is templated on site — we do not price secondary glazing by the square metre.

We survey with a sound level meter where noise is the driver, so the target is a number rather than an impression.

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

Recent installs nearby

Nether Edge Grade II sash retrofit

Six original box sashes fitted with balanced vertical secondary sliders — full listed-building consent secured in six weeks.

Ecclesall Road bay-window sound retrofit

Three-panel horizontal sliders across a 3.2 m Edwardian bay — Rw measured at 47 dB post-install.

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.

Send us the opening sizes

A photo and rough dimensions are enough for a written quote inside one working day. Send a photo of the stone mullion glazing — with chamfered stone mullions dividing narrow vertical lights in a interwar and modern replacement housing Manor property we can usually spec it before we visit.

Common questions

Can you fit secondary glazing without drilling the stone?

Yes — we fix into a timber sub-frame or the internal lining. Drilling historic stonework is not something we do.

The mullions are all slightly different widths. Is that a problem?

It is normal on hand-cut stone and it is why we template every light separately rather than ordering to a nominal size.

Will it help with damp in the reveals?

Usually. Reveal damp is condensation from cold surfaces meeting warm room air, and warming the reveal is what stops it.

Can we do one room now and the rest later?

Yes. We template and price per opening, so a later phase is quoted at the same rate — there is no penalty for splitting the work.

Will it get in the way of curtains or blinds?

Rarely. Reveal-fixed units sit inside the existing recess; where the recess is shallow we face-fix and reposition the blind, which we flag at survey rather than on the day.

Stone mullion glazing in Manor — the short version

The reveal is deep, uneven and rarely plumb, so nothing off the shelf fits. We fit hinged units templated to each light, set into the reveal face with Low-E as standard; these buildings are usually driven by cold and damp rather than noise, templated to your opening. Deep stone reveals get warm enough to stop the damp patching that appears at the reveal corners.