Window & double glazing installers in Merseyside
729 companies · 43 towns & cities
Merseyside has 729 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 Merseyside homeowners are upgrading their windows
Merseyside took 1,075mm of rain and 13 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 620,900 households, 82% live in a house (detached, semi or terraced) — that's a lot of Merseyside 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 Merseyside — no obligation, most respond within 48 hours.
Weather: Open-Meteo historical archive, 2025 daily readings for Merseyside.Housing: ONS Census 2021 (tables TS041 households, TS044 accommodation type), aggregated across Merseyside's local authorities.
Largest towns in Merseyside
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