Retrofitting Integral Blinds into Existing Double-Glazed Windows — Is It Possible?

Retrofitting Integral Blinds into Existing Double-Glazed Windows — Is It Possible?

Retrofitting Integral Blinds – If you’re upgrading your home’s comfort, privacy, and energy efficiency, adding integral blinds into your existing double-glazed windows might seem ideal. At KJM Group Ltd, based in Andover Hampshire, homeowners often ask:

Can I retrofit integral blinds into my current double-glazed units?

The answer: yes — in some cases. Let’s explore when it’s practical, what’s involved, and how it compares to full window replacement.

What Are Integral Blinds?

Integral blinds are blinds sealed between the glass panes of a double-glazed window. Because they sit inside the sealed unit, they:

• Stay dust-free and require almost no maintenance.
• Enhance thermal efficiency by preserving the sealed unit’s insulation.
• Offer sleek modern style for uPVC, aluminium, or timber windows.

👉 Learn more about our range of double-glazed windows.

When Can Integral Blinds Be Retrofitted?

Our specialists at KJM Group Andover assess each installation to determine retrofit feasibility.

1. Glazing unit type & condition
If your double-glazed unit can be safely removed from its frame, we can usually replace it with a new unit that contains integral blinds.

2. Spacer bar depth
Your window’s spacer bar must be wide enough to house the blind mechanism. Narrow or very old units may require full replacement. In general the minimum width for a sealed unit is 24mm, the most common size 28mm. They can usually be incorporated into a triple glazed unit.

3. Frame condition & performance
Sound uPVC or aluminium frames make retrofitting cost-effective. Damaged or inefficient frames? Replacement gives better long-term results.

How the Retrofitting Process Works

Initial survey – We inspect your existing units and measure accurately.

Safe removal – Old glazing units are removed while preserving the frame.

Installation – New sealed units with integral blinds are fitted.

Sealing & finishing – Air-tightness and thermal performance are ensured.

Quality check – Blinds tested, seals inspected, warranty provided.

All carried out by our FENSA-registered installers across Hampshire and neighbouring counties.

Benefits of Retrofitting vs Full Replacement

• 💰 Lower cost – Save 30–50 % over full window replacement.
• 🛠️ Minimal disruption – Keep your frames; shorter install time.
• 🏡 Preserve your home’s character – Perfect for period properties.
• 🌞 Modern convenience – Privacy, light control, and insulation in one.

When Retrofitting Isn’t Ideal

• Frames or seals are deteriorated or drafty.
• Glazing depth too narrow for integral blind system.
• You want maximum thermal upgrade (e.g. triple glazing).

In these cases, a full replacement may be better.
👉 Explore our energy-efficient window replacements.

Why Choose KJM Group Andover

• Local experts with 40 years’ experience in the Hampshire area.
• Accredited FENSA, GGF, and Which? Trusted Traders members.
• Specialists in bespoke glazing and retrofit solutions.
• Honest, no-pressure advice — we recommend what’s best for your property.
• Full after-sales support and long-term warranties.

See our customer reviews to learn why homeowners trust us.

FAQs About Integral Blinds Retrofit

Get a Quote for Integral Blinds in Hampshire

Thinking of upgrading your double-glazed windows in Andover or retrofitting integral blinds? Contact KJM Group Ltd today for expert guidance and a free, no-obligation quote.

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Mark Pearce

With over four decades in the glazing industry, Mark Pearce has been at the heart of KJM Windows & Conservatories since 1983. Starting as a building labourer, he quickly rose through the ranks, working as a window and door installer from 1984, a factory operator manufacturing windows later that year, factory manager in 1992, and joining the sales team in 1994. Becoming a Director in 2002, and finally, the sole owner in 2010, Mark Pearce is truly a double glazing expert and has led KJM to become a leading supplier of high-quality windows, doors, and conservatories across Andover and the South of England.

Mark Pearce is a highly experienced specialist in the double glazing industry, having built his knowledge from the ground up through hands-on experience in installation, manufacturing, sales, and business management. Beyond his role at KJM, Mark is a keen blogger, writer, and traveller, often sharing insights on the latest innovations in the home improvement industry.

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