Maltby · S66
Sash window glazing in Maltby, Rotherham
Sash window glazing in Maltby is common for a simple reason: the area is colliery-era terraces and post-war housing, and two vertically sliding sashes running in a boxed frame, usually with a horn detail on the upper sash is exactly what that period built. The problem we are asked to solve is the sash box is hollow and the counterweight pockets leak air, so the loss is around the window as much as through it. Maltby 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 S66 continuously — Maltby sits within reach of the Parkway (A630), which is also the reason a lot of these calls are about noise.
Installs are room-side only, so scaffolding is never needed and the exterior is untouched.
One survey, one fitting team, no subcontracted installers.
We survey with a sound level meter where noise is the driver, so the target is a number rather than an impression.
Cavity depth does more for acoustic performance than glass thickness, and we design for it first.
What we actually fit
| Window type | two vertically sliding sashes running in a boxed frame, usually with a horn detail on the upper sash (Georgian, Victorian and Edwardian, roughly 1750–1910) |
|---|---|
| Underlying problem | the sash box is hollow and the counterweight pockets leak air, so the loss is around the window as much as through it |
| System we fit | vertical sliding secondary units that mirror the original movement |
| Glass specification | 4 mm Low-E for thermal-led jobs, 6.4 mm laminated where noise is the driver |
| Measurement | we measure the reveal at three heights because sash openings are rarely square after a century of settlement |
| Heritage position | nothing is fixed into the sash box itself — the frame is fixed to the reveal lining, so historic joinery is untouched and the work is reversible |
Survey notes from the area
We avoid any fixing into the pulley stile or staff bead, so the install is fully reversible for a future owner or a conservation officer.
A sash box is a ventilated void by design; most of the perceived draught comes through the pulley stiles rather than through the glass.
Maltby stock is colliery-era terraces and post-war housing and the prevailing glazing is sashes and casements, which is why sash window glazing comes up here so often.
We measure the reveal at three heights because sash openings are rarely square after a century of settlement.
Maltby carries no conservation designation, so the specification is decided on performance alone.
Recent installs nearby
Moorgate HMO security retrofit
Ground-floor sashes across four HMO units fitted with key-lock hinged units to meet the licensing conditions.
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.
Local reference points
- Area
- Maltby (S66)
- Town
- Rotherham, South Yorkshire
- Housing era
- colliery-era terraces and post-war housing
- Typical windows
- sashes and casements
- Landmark
- Roche Abbey
- Conservation area
- No
- Window style
- Sash Windows
- Period
- Georgian, Victorian and Edwardian, roughly 1750–1910
Common questions
Will secondary glazing stop my sash windows rattling?
Yes, and it does it without touching the sash. The rattle is wind pressure moving a loose sash in its box, and a sealed room-side pane removes the pressure differential driving it.
Can I still open the sash behind it?
Yes. Vertical sliding secondary units move on the same axis, so both sashes stay operable.
Does it damage original joinery?
No. The fixing is into the reveal lining, not the sash box, and the whole system can be removed later without trace.
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.
How the job runs
- Step 1
Send a photo of the window — with two vertically sliding sashes running in a boxed frame we can usually tell you the likely system before we visit.
- Step 2
Survey in Maltby: we measure the reveal at three heights because sash openings are rarely square after a century of settlement.
- Step 3
Manufacture to the templated sizes with your chosen finish.
- Step 4
Room-side install with no external access and no alteration to the original frame.
Sash window glazing in Maltby — the short version
The sash box is hollow and the counterweight pockets leak air, so the loss is around the window as much as through it. We fit vertical sliding secondary units that mirror the original movement with 4 mm Low-E for thermal-led jobs, 6.4 mm laminated where noise is the driver, templated to your opening. The draught through the weight pockets is sealed and the original sash keeps operating normally.
Start with one room — Windows
Send the opening sizes for the worst room and we will price that first — extending later costs no more. Send a photo of the sash window glazing — with two vertically sliding sashes running in a boxed frame in a colliery-era terraces and post-war housing Maltby property we can usually spec it before we visit.