Room by room
Living Room Secondary Glazing
The cold downdraught off a large single-glazed bay that makes the seating area unusable from November is the reason most people fit secondary glazing in this room. Surface temperature at the glass rises by several degrees, which removes the draught sensation people mistake for a leaking frame. We cover South Yorkshire, North Derbyshire and the surrounding towns.

What makes this room different
A bay is usually the biggest single heat-loss surface in a period house; treating it first gives the largest comfort gain per pound spent in the whole property.
Radiators sitting under a bay need a low-profile head section so the convection path is not blocked — we check this at survey rather than on install day.
Where the bay carries leaded or stained top lights we template around them so the decorative glass stays visible from inside.
Will it make the bay look boxed in? No — slim satin profiles follow the facet lines and sit inside the reveal, so the bay reads as a bay from inside the room and is unchanged from the street.
How we would spec this
| Typical opening | a bay or a pair of large sashes, often 2.4–3.4 m across the whole recess |
|---|---|
| Glass specification | Low-E soft-coat glass on a multi-panel horizontal slider templated to each bay facet |
| Operation | we run the head track behind the curtain pole line so existing window dressing is unaffected |
| Main benefit | surface temperature at the glass rises by several degrees, which removes the draught sensation people mistake for a leaking frame |
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.
The practical side
- Step 1
Send a photo and rough dimensions for an indicative price within a working day.
- Step 2
On-site survey and templating of the opening.
- Step 3
Manufacture, typically two to three weeks.
- Step 4
Room-side install with no external access required.
Aluminium systems are powder-coated to any RAL colour at no extra lead time.
Listed-building drawings and specifications are prepared free with the quote where consent is needed.
Measured performance figures come from our own post-install testing, not manufacturer maximums.
Thermal figures quoted are whole-window, not centre-pane, which is the honest way to state them.
Book a no-obligation survey
We template every opening on site so the quote you get is the price you pay.
This room, town by town
- Living room glazing in SheffieldSouth Yorkshire
- Living room glazing in RotherhamSouth Yorkshire
- Living room glazing in DoncasterSouth Yorkshire
- Living room glazing in BarnsleySouth Yorkshire
- Living room glazing in ChesterfieldDerbyshire
- Living room glazing in WorksopNottinghamshire
- Living room glazing in WakefieldWest Yorkshire
- Living room glazing in HuddersfieldWest Yorkshire
Local areas we cover for this room
- Hillsborough (S6)tram-corridor terraces close to the football ground
- Dore (S17)gateway village to the Peak District with a protected core
- Broomhall (S10)villa conservation area on the western edge of the city centre
- Greenhill (S8)settled post-war suburb in the far south of the city
- Tinsley (S9)housing hemmed in by the M1 and the Don valley
- High Green (S35)northern edge suburb close to the Barnsley boundary
- Wisewood (S6)interwar estate on the slope above the Loxley valley
- Woodhouse (S13)former mining village on the eastern boundary
- Moorgate (S60)Rotherham's grandest Victorian avenue with dense listed stock
Other rooms
- Bedroom glazingsleep through road, rail and neighbour noise
- Home office glazingtake calls without background traffic and keep the room warm on a working day
- Nursery glazingprotect daytime naps and keep a small room at a stable temperature
- Bathroom glazingstop condensation, mould and cold surfaces in the wettest room in the house
- Loft glazingfix the hottest-in-summer, coldest-in-winter room and the noise that comes straight off the roofline
- Kitchen glazingcut condensation over the sink and keep a hard-surfaced room from feeling cold
- Dining room glazingmake a rarely-heated room comfortable and quiet enough to eat and talk in
- Stairwell glazingclose the biggest uncontrolled heat path in a period house and protect stained glass
- Garden room glazingextend the usable season of a room that is currently too cold or too loud to sit in
Common questions
Can you follow the angles of a bay window?
Yes. Each facet is templated separately and the panels meet at the mullion lines, so the system follows the bay rather than boxing across it.
Will it stop the cold draught I feel on the sofa?
In almost every case. What most people describe as a draught is radiant loss and convection off cold glass, and a sealed room-side pane with Low-E coating removes both.
Do I have to take the curtains down?
Only for the install day. We survey the pole position first so the head track clears it and the same curtains go back up afterwards.
Living room glazing — the short version
Make the main reception room usable in winter and quiet enough for conversation, using Low-E soft-coat glass on a multi-panel horizontal slider templated to each bay facet. We run the head track behind the curtain pole line so existing window dressing is unaffected.
