Window & double glazing installers in Newport

81 companies · 17 towns & cities

Newport has 81 active window and glazing businesses on the Companies House register. Choose a town below to see the companies listed there, or request free quotes from FENSA or Certass registered installers covering your postcode.

Why Newport homeowners are upgrading their windows

Newport took 1,120mm of rain and 15 frost days in 2025 — the freeze / thaw cycles that lift seals, warp frames and let moisture creep in behind old glazing. Across the county's 66,054 households, 83% live in a house (detached, semi or terraced) — that's a lot of Newport homes with 8 – 12 windows each, most fitted with early double-glazing units that are well past their sealed-argon life.

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Free quotes below from FENSA / Certass installers active in Newport — no obligation, most respond within 48 hours.

Rainfall1,120mm

Frost days15

Peak gust101.5km/h

Temp range-3.1° to 32.2°C

Households66,054

Houses (det + semi + terraced)83%

Flats13.5%

Weather: Open-Meteo historical archive, 2025 daily readings for Newport.Housing: ONS Census 2021 (tables TS041 households, TS044 accommodation type), aggregated across Newport's local authorities.

Largest towns in Newport

Newport35 companies Blackwood11 companies Cwmbran9 companies Pontypool6 companies Tredegar5 companies Caldicot3 companies Abergavenny2 companies Abertillery1 company Brynmawr1 company Croesyceiliog1 company Ebbw Vale1 company Gwent1 company

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All towns in Newport

Newport (35)Blackwood (11)Cwmbran (9)Pontypool (6)Tredegar (5)Caldicot (3)Abergavenny (2)Abertillery (1)Brynmawr (1)Croesyceiliog (1)Ebbw Vale (1)Gwent (1)Llantarnam Industrial Park (1)Llanvaches (1)Monmouth (1)New Tredegar (1)Usk (1)