What Our Clients Say
We work across private homes, commercial properties and institutional estates. Here’s what our clients say about working with Charlie’s Windows.
Domestic Clients
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“Our Grade II listed cottage needed careful sash restoration. Charlie’s Windows preserved the character beautifully and dealt directly with the conservation officer.”
— Heritage Homeowner
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“Very professional from start to finish. We replaced all timber casements in a conservation area. Clear communication, clean install, zero stress.”
— Private Client, Kensington
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Retrofit + Planning Support
“We were dreading the process of upgrading our sash windows in a listed property but Charlie’s Windows took care of the surveys, planning and installation without any headaches. The difference in warmth and noise is remarkable.”
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Full Replacement – Timber
“Very professional from start to finish. We replaced all our timber casement windows in a conservation area. Charlie’s Windows handled the permissions, kept everything tidy and communicated clearly throughout. Zero stress.”
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Secondary Glazing – Noise Reduction
“The team recommended secondary glazing to tackle road noise without altering the original windows. It worked perfectly and we didn’t need to apply for planning permission.”
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Homeowner – All Services, Hybrid Frame
“Charlie’s Windows were the only company who gave us a clear comparison across all frame types. We went with hybrid frames for energy efficiency and aesthetics. Great value, solid finish and no sales pressure.”
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Listed Cottage – Sensitive Restoration
“Our Grade II listed cottage needed careful sash restoration, not replacement. Charlie’s Windows preserved the character beautifully and liaised directly with the conservation officer. We couldn’t be happier.”
Commercial Professionals
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“Charlie’s Windows handled the full spec, tender and install for 17 flats. Seamless coordination and reporting that impressed the board.”
— Chartered Surveyor
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“We’ve now used Charlie’s Windows on two blocks. Their planning support and resident communication make our job easier.”
— Managing Agent, Westminster
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Managing Agent – Multi-Unit Retrofit
“We’ve used Charlie’s Windows on two blocks in Westminster. Their reports are thorough, pricing is fair and they take charge of planning and resident comms. It saves us time, makes our lives much easier and residents benefit from exceptional service and value.”
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Architect – Heritage Mixed Use
“We brought Charlie’s Windows in for advice on a complex listed scheme. Their expertise in glazing systems and conservation constraints saved us considerable time and rework.”
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Developer – Aluminium Windows & Doors
“They sourced aluminium systems through trusted partners with better lead times than anyone else. Installation was clean and site coordination stayed smooth from start to finish.”
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Tender & Procurement Support
“Charlie’s Windows ran the procurement for a block-wide refurbishment and gave us three clear options with pros, cons and timeframes. Much smoother than chasing quotes from separate suppliers.”
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Building Surveyor – End-to-End Coordination
“Charlie’s Windows handled the full scope for a heritage upgrade across 17 flats, from spec to install. Their coordination was seamless and the board appreciated the clarity of their reports.”
Institutional Clients
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“Charlie’s Windows helped us secure energy grants and worked carefully around live services. Respectful, efficient and clear throughout.”
— Estate Manager, London Charity
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“They surveyed our estate and phased the retrofit sensibly. Clear reporting made trustee sign-off easy.”
— University Building Surveyor
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Hospital Estate Manager – Phased Replacement
“Charlie’s Windows delivered on time, worked within our operational hours and phased the install to minimise disruption. We’ll definitely be working with them again.”
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School Site Manager – Secondary Glazing
“We needed to reduce noise and cold without full replacement. Charlie’s Windows recommended discreet secondary glazing that did the job perfectly. Easy to deal with and competitively priced.”
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College Building Surveyor – Retrofit Across Estate
“They assessed our full stock and developed a phased retrofit plan with realistic budgets and timelines. Professional reporting made trustee approval straightforward.”
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Commercial Landlord – Mixed Windows, Full Scope
“Charlie’s Windows are one of the few firms who understand planning, procurement and installation equally well. They’ve now handled timber, uPVC and aluminium across our portfolio.”
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Charity Estate Manager – Grants & Upgrades
“Charlie’s Windows helped us access funding for energy upgrades and managed works around live services. Their team was efficient, respectful and clear at every stage.”