Deceuninck vs Rehau
Average Price
£643
Deceuninck
£590
Rehau
U-Value
1.2 W/m²K
Deceuninck
1.1 W/m²K
Rehau
Warranty
10.0 years
Deceuninck
10.0 years
Rehau
Customer Rating
4.4/5
Deceuninck
4.6/5
Rehau
Deceuninck vs Rehau: Summary
When comparing Deceuninck and Rehau windows, several key differences emerge. Deceuninck, established in 1937, offers windows with an average U-Value of 1.2 W/m²K at an average price of £643. Meanwhile, Rehau windows average 1.1 W/m²K U-Value at £590.
Deceuninck windows come with an average warranty of 10.0 years, compared to Rehau's 10.0 years. Customer satisfaction ratings show Rehau ahead at 4.6/5, while reliability scores give Rehau a slight edge.
Both manufacturers offer various glazing options and produce windows suitable for different property types. Deceuninck is based in Belgium, while Rehau originates from Germany.
Detailed Comparison
Who Should Choose Deceuninck
- Homeowners looking for classic casement window designs
Who Should Choose Rehau
- Homeowners valuing customer satisfaction and after-sales support
- Homeowners wanting access to a wide network of approved installers
- Those looking for windows with exceptional reliability
Popular Window Models
Deceuninck Popular Models
| Model | Type | Material | Rating | U-Value | Price |
|---|---|---|---|---|---|
| Chamfered 2500 | Casement | uPVC | A+ | 1.1 W/m²K | £490 |
| Heritage Flush Sash | Flush Casement | uPVC | A | 1.2 W/m²K | £540 |
| Sliding Patio Doors | Sliding | uPVC | A | 1.3 W/m²K | £900 |
Rehau Popular Models
| Model | Type | Material | Rating | U-Value | Price |
|---|---|---|---|---|---|
| Total70c | Casement | uPVC | A+ | 1.1 W/m²K | £520 |
| Rio Flush Fit | Flush Casement | uPVC | A | 1.2 W/m²K | £570 |
| Geneo | Tilt and Turn | uPVC | A+ | 1.0 W/m²K | £680 |
Approved Installers
Deceuninck Installers
Deceuninck Approved Installers
Approved Installers
Rehau Installers
Rehau Authorised Partners
Authorised Partners
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:
Deceuninck
Average U-Value
1.2 W/m²K
Lower is better for heat retention
Energy Rating
A
Estimated Annual Energy Savings
£318
Compared to older single-glazed windows (typical U-Value 5.8)
Rehau
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)
Frequently Asked Questions
Ready to get new windows?
Compare quotes from approved installers in your area