At AT-ECO, we help homeowners across Kent—from Sevenoaks to London and the coast—navigate these decisions every day. Here’s what to consider when selecting glazing and framing that works for your property, climate, and lifestyle.
Understanding Glazing Performance
The type of glazing you choose plays a major role in your home’s thermal comfort, noise control, and energy efficiency.
Glazing Comparison Table:
Glazing Type:
- Single Glazing – ~5.0–6.0 W/m²K – Low cost only; poor insulation – Ideal for: Unheated outbuildings only
- Double Glazing – ~1.4–2.8 W/m²K – Moderate efficiency, affordable – Ideal for: Most UK homes, unless upgrading
- Triple Glazing – ~0.6–1.0 W/m²K – Superior insulation and soundproofing – Ideal for: Cold climates, Passive Homes, near busy roads
AT-ECO Insight: For new builds or upgrades in rural Kent where winter temperatures dip, triple glazing is the clear winner—especially when paired with airtight installation.
Frame Materials: Beyond Aesthetics
Choosing the right frame is just as crucial as the glazing itself. It affects insulation, style, longevity, and required maintenance.
Frame Material Overview:
- uPVC: Affordable, energy-efficient, low maintenance. Ideal for: Everyday homes prioritising budget + efficiency.
- uPVC-Aluminium Clad: Adds a modern exterior finish with increased durability. Ideal for: Homes wanting longevity and clean lines.
- Timber: Naturally insulating and ideal for conservation areas. Requires repainting every 5–7 years. Ideal for: Traditional cottages or listed properties.
- Aluminium-Clad Timber: Premium hybrid: warm wood inside, weatherproof aluminium outside. Ideal for: Homes exposed to harsh weather, design-conscious renovations.
- Aluminium / Steel: Sleek, slim profiles and structural strength. Must be thermally broken to prevent cold bridging. Ideal for: Contemporary homes and large glazed openings.
AT-ECO Insight: We often recommend timber-aluminium frames for clients renovating period homes in conservation zones—combining aesthetics with modern-day performance.
Don’t Overheat: Add the Right Shading
South- or west-facing rooms can easily overheat, especially with large glazed areas. That’s where external shading comes in.
Shading Options:
- External Roller Shutters: Block solar gain entirely, ideal for summer.
- Venetian Blinds (External): Adjustable light control, sleek design.
- Canopies / Overhangs: Architecturally integrated shade that still allows winter sun.
- Strategic Landscaping: Planting trees or tall shrubs to cast shadows seasonally.
AT-ECO Insight: In south-facing extensions around London, we’ve seen shading reduce indoor peak summer temperatures by 6–10°C—without relying on air conditioning.
Installation: Where Performance Rises or Falls
Even the best glazing can underperform if not properly installed. At AT-ECO, our FENSA-registered installers use ISO-BLOCO ONE foam tapes and EPDM membranes to ensure airtight seals and long-term weather resistance.
Benefits of Professional Installation:
- Prevents draughts and thermal bridging
- Ensures airtight seals for maximum insulation
- Aligns with UK building regulations
- Adds to your home’s market value and EPC score
AT-ECO Insight: We regularly repair or replace windows that failed not because of the product—but due to substandard installation. Avoid that pitfall from the start.
Final Thoughts: Combining Glazing, Frame & Shading for Total Comfort
The perfect window system is a combination of:
- The right glazing for your thermal and acoustic needs
- A suitable frame for aesthetics, performance, and longevity
- Thoughtful shading for solar control
- Expert installation to bring it all together
