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UK Window Manufacturers By Efficiency

DM Window Solutions

4.8/5

Average Price

£950

U-Value

1.0 W/m²K

Key Info:

Energy Rating:

A+

Warranty:

20.0 years

Features:

Excellent Thermal Performance

Smart Glazing Technology

Extended Warranty Options

9 Window Types

Arkay Windows

4.5/5

Average Price

£850

U-Value

1.1 W/m²K

Key Info:

Energy Rating:

A+

Warranty:

15.0 years

Features:

Excellent Thermal Performance

Smart Glazing Technology

Extended Warranty Options

10 Window Types

uPVC Windows London

4.4/5

Average Price

£600

U-Value

1.2 W/m²K

Key Info:

Energy Rating:

A+

Warranty:

10.0 years

Features:

Excellent Thermal Performance

12 Window Types

uPVC Window Factory

4.5/5

Average Price

£620

U-Value

1.2 W/m²K

Key Info:

Energy Rating:

A

Warranty:

12.0 years

Features:

Excellent Thermal Performance

11 Window Types

North London Windows

4.3/5

Average Price

£550

U-Value

1.3 W/m²K

Key Info:

Energy Rating:

A

Warranty:

10.0 years

Features:

Smart Glazing Technology

8 Window Types

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