★★★★★
“We love our soho origin French doors supplier installed by Mainstream. Bob was great with communications and the team who came to do the…”
Google review · Jun 2026
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Mainstream Windows Ltd
Mainstream Windows manufactures, supplies and installs windows, doors and conservatories for homes, schools and commercial properties across the West Midlands.
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About Mainstream Windows Ltd
Mainstream Windows manufactures, supplies and installs windows, doors and conservatories for homes, schools and commercial properties across the West Midlands.
The family-owned business has served the Birmingham area since 1988 and works with uPVC and aluminium systems made to suit each project.
Its FENSA-registered team provides advice, surveying and fitting, with customers able to request a no-obligation quotation before proceeding.
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Google reviews
What customers say about Mainstream Windows Ltd
4.6 out of 5 · 98 Google reviews
★★★★★
“We originally had 3 bi-fold doors and then decided to change the kitchen design and bi-fold door framing. Whilst there are many companies out…”
Google review · May 2026
★★★★★
“I initially had my origin bi-folds doors installed 10 years ago. I always had alignment issues where I could see gaps between the frame…”
Google review · May 2026
Short excerpts from recent 4–5 star public Google reviews, collected in Jul 2026. Google Maps holds the full review history.
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