Window & double glazing installers in Leicestershire
361 companies · 31 towns & cities
Leicestershire has 361 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 Leicestershire homeowners are upgrading their windows
Leicestershire took 662mm of rain and 25 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 423,794 households, 87% live in a house (detached, semi or terraced) — that's a lot of Leicestershire homes with 8 – 12 windows each, most fitted with early double-glazing units that are well past their sealed-argon life.
Get 3 free quotesFree quotes below from FENSA / Certass installers active in Leicestershire — no obligation, most respond within 48 hours.
Weather: Open-Meteo historical archive, 2025 daily readings for Leicestershire.Housing: ONS Census 2021 (tables TS041 households, TS044 accommodation type), aggregated across Leicestershire's local authorities.
Largest towns in Leicestershire
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