Secondary Glazing Pricing Questions

Question 1

How much does secondary glazing cost in 2025?

Secondary Glazing Installers · Accepted Answer

Secondary glazing costs typically range from £250-£600 per window in 2025, depending on size, glass type, and frame material. A standard casement window (1000x1200mm) with acoustic glass costs around £350-450. Sash windows are slightly higher at £400-550 due to the sliding mechanism. For a full house with 8-10 windows, expect £3,000-£5,500 including installation.

Question 2

What factors affect secondary glazing price?

Secondary Glazing Installers · Accepted Answer

Key factors include: 1) Window size - larger windows cost more, 2) Glass type - standard, laminated, or acoustic glass at different price points, 3) Frame material - UPVC is cheapest, aluminium mid-range, timber most expensive, 4) Opening mechanism - fixed panels cheapest, sliding/hinged more, 5) Installation complexity - period properties may need bespoke solutions, 6) Quantity - more windows typically means better per-unit pricing.

Question 3

Is secondary glazing cheaper than double glazing?

Secondary Glazing Installers · Accepted Answer

Yes, significantly. Secondary glazing costs 50-70% less than replacement double glazing. A double-glazed window replacement costs £500-£1,200 per window, while secondary glazing is £250-£600. For a typical 10-window home, secondary glazing saves £3,000-£6,000 compared to full replacement, while achieving comparable thermal performance and often superior acoustic performance.

Question 4

How much do different glass types cost?

Secondary Glazing Installers · Accepted Answer

Glass type significantly affects price: Standard 4mm float glass (basic thermal improvement) - included in base price. 6.4mm laminated glass (security + acoustic) - adds £30-50 per window. Acoustic laminated glass (maximum sound reduction) - adds £60-100 per window. Low-E glass (enhanced thermal) - adds £20-40 per window. We recommend acoustic laminated for London properties facing busy roads.

Question 5

Is acoustic glass worth the extra cost?

Secondary Glazing Installers · Accepted Answer

For properties on busy roads or near transport links, absolutely. Acoustic glass provides 45-50dB noise reduction compared to 30-35dB for standard glass. The extra £60-100 per window delivers noticeably quieter living spaces, better sleep quality, and increased property value. Our London customers consistently rate acoustic glass as their best investment.

Question 6

What is the ROI on secondary glazing?

Secondary Glazing Installers · Accepted Answer

Secondary glazing typically pays for itself within 3-5 years through energy savings. With annual heating bill reductions of £200-£400, a £3,500 installation is recouped in 9-17 years from energy alone. Factor in increased property value (estimated 2-5% for improved EPC rating), reduced condensation damage, and improved comfort, and ROI is typically under 5 years.

Question 7

How much will I save on energy bills?

Secondary Glazing Installers · Accepted Answer

Secondary glazing reduces heat loss through windows by up to 65%, translating to 10-15% reduction in total heating bills. For an average UK home spending £1,500/year on heating, this means £150-£225 annual savings. Properties with single glazing see even greater savings of £200-£400 per year. The exact amount depends on your property size, existing glazing, and heating system.

Question 8

Does secondary glazing increase property value?

Secondary Glazing Installers · Accepted Answer

Yes, secondary glazing can increase property value by improving EPC ratings and overall desirability. An improved EPC rating (e.g., D to C) can add 2-5% to property value. For a £400,000 London property, this could mean £8,000-£20,000 added value. Additionally, buyers increasingly value quiet, energy-efficient homes, making secondary glazing an attractive selling point.

Question 9

What payment options are available?

Secondary Glazing Installers · Accepted Answer

We offer several payment options: Pay on completion (most common), 50% deposit with balance on completion, 0% finance available on orders over £2,000 (subject to status), Interest-bearing finance for longer terms. We accept bank transfer, credit/debit cards, and cheque. All prices include VAT at 20%.

Question 10

Is a deposit required?

Secondary Glazing Installers · Accepted Answer

A 50% deposit is required when you place your order, with the balance due on completion of installation. This deposit secures your order and covers material costs. For finance orders, terms are arranged separately. We provide a detailed receipt and order confirmation for all deposits.

Question 11

Is finance available for secondary glazing?

Secondary Glazing Installers · Accepted Answer

Yes, we offer 0% interest finance on orders over £2,000, typically over 12 months. For example, a £3,600 installation could be spread into 12 monthly payments of £300. Longer terms with interest are also available. Finance is subject to credit check and approval. Apply during your survey for a quick decision.

Question 12

How long is a quote valid for?

Secondary Glazing Installers · Accepted Answer

Our quotes are valid for 30 days from the survey date. This allows you time to consider your options without pressure. If you need longer, let us know - we can often extend validity. However, we cannot guarantee prices beyond 30 days due to potential material cost changes.

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Pricing Questions

1How much does secondary glazing cost in 2025?Costs

2What factors affect secondary glazing price?Factors

3Is secondary glazing cheaper than double glazing?Comparison

4How much do different glass types cost?Glass

5Is acoustic glass worth the extra cost?Glass

6What is the ROI on secondary glazing?ROI

7How much will I save on energy bills?Savings

8Does secondary glazing increase property value?Value

9What payment options are available?Payment

10Is a deposit required?Payment

11Is finance available for secondary glazing?Finance

12How long is a quote valid for?Quotes

Explore Related Topics

Installation Questions

Results Questions

Thermal Questions

Get Your Personalised Quote