Britannia Windows vs Duraflex Windows

Average Price

£820

Britannia Windows

£610

Duraflex Windows

U-Value

1.1 W/m²K

Britannia Windows

1.0 W/m²K

Duraflex Windows

Warranty

15.0 years

Britannia Windows

12.0 years

Duraflex Windows

Customer Rating

4.5/5

Britannia Windows

4.4/5

Duraflex Windows

Britannia Windows vs Duraflex Windows: Summary

When comparing Britannia Windows and Duraflex Windows windows, several key differences emerge. Britannia Windows, established in 1986, offers windows with an average U-Value of 1.1 W/m²K at an average price of £820. Meanwhile, Duraflex Windows windows average 1.0 W/m²K U-Value at £610.

Britannia Windows windows come with an average warranty of 15.0 years, compared to Duraflex Windows's 12.0 years. Customer satisfaction ratings show Britannia Windows leading with 4.5/5, while reliability scores give Britannia Windows a slight edge.

Both manufacturers offer various glazing options and produce windows suitable for different property types. Both are based in United Kingdom.

Detailed Comparison

Britannia Windows
Duraflex Windows
Average Price
£820
£610
U-Value
1.1 W/m²K
1.0 W/m²K
Energy Rating
A+
A+
Average Warranty
15.0 years
12.0 years
Reliability Score
4.6/5
4.4/5
Customer Satisfaction
4.5/5
4.4/5
UK Market Share
5.4%
4.0%
Established
1986
1994
Country of Origin
United Kingdom
United Kingdom
Smart Glazing Technology
High Efficiency (U-Value ≤ 1.2)
Extended Warranty Options

Who Should Choose Britannia Windows

  • Tech-savvy homeowners wanting smart glazing features
  • Those who prefer to support UK manufacturing
  • Homeowners looking for classic casement window designs

Who Should Choose Duraflex Windows

  • Those looking for windows with strong performance

Popular Window Models

Britannia Windows Popular Models

ModelTypeMaterialRatingU-ValuePrice
AluBifold 80BifoldAluminiumA1.2 W/m²K£1,200
ThermoSafe CasementCasementuPVCA+0.9 W/m²K£650

Duraflex Windows Popular Models

ModelTypeMaterialRatingU-ValuePrice
ResiFront DoorEntrance DooruPVCA1.1 W/m²K£950
FlexiSeal TurnTilt & TurnuPVCA+0.9 W/m²K£580

Approved Installers

Britannia Windows Installers

No installer data available

Duraflex Windows Installers

No installer data available

Energy Efficiency & Cost Savings

More energy-efficient windows can significantly reduce your heating bills. Based on average UK energy prices and a typical 3-bedroom house:

Britannia Windows

Average U-Value

1.1 W/m²K

Lower is better for heat retention

Energy Rating

A+

Estimated Annual Energy Savings

£338

Compared to older single-glazed windows (typical U-Value 5.8)

Duraflex Windows

Average U-Value

1.0 W/m²K

Lower is better for heat retention

Energy Rating

A+

Estimated Annual Energy Savings

£360

Compared to older single-glazed windows (typical U-Value 5.8)

Frequently Asked Questions

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