Installed Products

• - Secured by Design accredited, PAS24 tested, UKAS accredited & Q mark compliant 
• - Designed and manufactured in the UK
• - Marine standard, powder coating that is suitable for locations in close proximity to marine environments
• - 5-point locking system with 3 star, anti-snap euro cylinder

Please Note: Prices include survey and fitting of a standard door by Dortech professionals. Additional materials may be required in some cases which will be subject to an additional cost. This will be discussed accordingly by the surveyor who will highlight any additional charges prior to your door being put into production.

Costco’s customer satisfaction guarantee and returns policy does not apply to special order merchandise, custom merchandise and installed merchandise. However your legal rights are unaffected. For further details, please see Delivery & Returns. 

• - Secured by Design accredited, PAS24 tested, UKAS accredited & Q mark compliant 
• - Designed and manufactured in the UK
• - Marine standard, powder coating that is suitable for locations in close proximity to marine environments
• - 5-point locking system with 3 star, anti-snap euro cylinder

Please Note: Prices include survey and fitting of a standard door by Dortech professionals. Additional materials may be required in some cases which will be subject to an additional cost. This will be discussed accordingly by the surveyor who will highlight any additional charges prior to your door being put into production.

Costco’s customer satisfaction guarantee and returns policy does not apply to special order merchandise, custom merchandise and installed merchandise. However your legal rights are unaffected. For further details, please see Delivery & Returns. 

• - Secured by Design accredited, PAS24 tested, UKAS accredited & Q mark compliant 
• - Designed and manufactured in the UK
• - Marine standard, powder coating that is suitable for locations in close proximity to marine environments
• - 5-point locking system with 3 star, anti-snap euro cylinder

Please Note: Prices include survey and fitting of a standard door by Dortech professionals. Additional materials may be required in some cases which will be subject to an additional cost. This will be discussed accordingly by the surveyor who will highlight any additional charges prior to your door being put into production.

Costco’s customer satisfaction guarantee and returns policy does not apply to special order merchandise, custom merchandise and installed merchandise. However your legal rights are unaffected. For further details, please see Delivery & Returns. 

• - Secured by Design accredited, PAS24 tested, UKAS accredited & Q mark compliant 
• - Designed and manufactured in the UK
• - Marine standard, powder coating that is suitable for locations in close proximity to marine environments
• - 5-point locking system with 3 star, anti-snap euro cylinder

Please Note: Prices include survey and fitting of a standard door by Dortech professionals. Additional materials may be required in some cases which will be subject to an additional cost. This will be discussed accordingly by the surveyor who will highlight any additional charges prior to your door being put into production.

Costco’s customer satisfaction guarantee and returns policy does not apply to special order merchandise, custom merchandise and installed merchandise. However your legal rights are unaffected. For further details, please see Delivery & Returns. 

• - Secured by Design accredited, PAS24 tested, UKAS accredited & Q mark compliant 
• - Designed and manufactured in the UK
• - Marine standard, powder coating that is suitable for locations in close proximity to marine environments
• - 5-point locking system with 3 star, anti-snap euro cylinder

Please Note: Prices include survey and fitting of a standard door by Dortech professionals. Additional materials may be required in some cases which will be subject to an additional cost. This will be discussed accordingly by the surveyor who will highlight any additional charges prior to your door being put into production.

Costco’s customer satisfaction guarantee and returns policy does not apply to special order merchandise, custom merchandise and installed merchandise. However your legal rights are unaffected. For further details, please see Delivery & Returns. 

• - Secured by Design accredited, PAS24 tested, UKAS accredited & Q mark compliant 
• - Designed and manufactured in the UK
• - Marine standard, powder coating that is suitable for locations in close proximity to marine environments
• - 5-point locking system with 3 star, anti-snap euro cylinder

Please Note: Prices include survey and fitting of a standard door by Dortech professionals. Additional materials may be required in some cases which will be subject to an additional cost. This will be discussed accordingly by the surveyor who will highlight any additional charges prior to your door being put into production.

Costco’s customer satisfaction guarantee and returns policy does not apply to special order merchandise, custom merchandise and installed merchandise. However your legal rights are unaffected. For further details, please see Delivery & Returns. 

• - Secured by Design accredited, PAS24 tested, UKAS accredited & Q mark compliant 
• - Designed and manufactured in the UK
• - Marine standard, powder coating that is suitable for locations in close proximity to marine environments
• - 5-point locking system with 3 star, anti-snap euro cylinder

Please Note: Prices include survey and fitting of a standard door by Dortech professionals. Additional materials may be required in some cases which will be subject to an additional cost. This will be discussed accordingly by the surveyor who will highlight any additional charges prior to your door being put into production.

Costco’s customer satisfaction guarantee and returns policy does not apply to special order merchandise, custom merchandise and installed merchandise. However your legal rights are unaffected. For further details, please see Delivery & Returns. 

- Can be controlled via smart phone or tablet

- Heat boost mode heats a space up to 14% faster than a regular unit

- 7.1kW is suitable for rooms up to 58m²

- Seasonal efficiency values of A++ in cooling & A+ in heating

- Comes with survey and installation by F-Gas engineer

Please note: 20amp power supply is required (at outdoor unit location) prior to installation.

Please ensure you read through the installation guide prior to purchase to make sure the system is suitable for your application.

Please Note:

Please select your colour from the 'Colour Swatch' Guide and contact: costcosales@birkdale.co.uk to receive a sample.

Costco’s customer satisfaction guarantee and returns policy does not apply to special order merchandise, custom merchandise and installed merchandise. However your legal rights are unaffected. For further details, please see Delivery & Returns 

Please Note:

Please select your colour from the 'Colour Swatch' Guide and contact: costcosales@birkdale.co.uk to receive a sample.

Costco’s customer satisfaction guarantee and returns policy does not apply to special order merchandise, custom merchandise and installed merchandise. However your legal rights are unaffected. For further details, please see Delivery & Returns 

• - Can be controlled via smart phone or tablet
• - Heat boost mode heats a space up to 14% faster than a regular unit
• - 6.0kW is suitable for rooms up to 50m²
• - Seasonal efficiency values of A++ in cooling & A+ in heating
• - Comes with survey and installation by F-Gas Engineer

Please note: 16amp power supply is required (at outdoor unit location) prior to installation.

Please ensure you read through the installation guide prior to purchase to make sure the system is suitable for your application.

Please Note:

Please select your colour from the 'Colour Swatch' Guide and contact: costcosales@birkdale.co.uk to receive a sample.

Costco’s customer satisfaction guarantee and returns policy does not apply to special order merchandise, custom merchandise and installed merchandise. However your legal rights are unaffected. For further details, please see Delivery & Returns 

Please Note:

Please select your colour from the 'Colour Swatch' Guide and contact: costcosales@birkdale.co.uk to receive a sample.

Costco’s customer satisfaction guarantee and returns policy does not apply to special order merchandise, custom merchandise and installed merchandise. However your legal rights are unaffected. For further details, please see Delivery & Returns 

• - Can be controlled via smart phone or tablet
• - Heat boost mode heats a space up to 14% faster than a regular unit
• - 4.2kW suitable for rooms up to 35m²
• - Seasonal efficiency values of A++ in cooling & A++ in heating
• - Comes with survey and installation by F-Gas engineer

Please note: 16amp power supply is required (at outdoor unit location) prior to installation.

Please ensure you read through the installation guide prior to purchase to make sure the system is suitable for your application.

• - Super compact at just 77cm wide (indoor unit)
• - Whisper-quiet in operation, down to 20dBA
• - 3.5kW is suitable for rooms up to 28m²
• - Seasonal efficiency values of A++ in cooling & A+ in heating
• - Comes with survey and installation by F-Gas engineer

Please note: 16amp power supply is required (at outdoor unit location) prior to installation.

Please ensure you read through the installation guide prior to purchase to make sure the system is suitable for your application.

Please Note:

Please select your colour from the 'Colour Swatch' Guide and contact: costcosales@birkdale.co.uk to receive a sample.

Costco’s customer satisfaction guarantee and returns policy does not apply to special order merchandise, custom merchandise and installed merchandise. However your legal rights are unaffected. For further details, please see Delivery & Returns 

Please Note:

Please select your colour from the 'Colour Swatch' Guide and contact: costcosales@birkdale.co.uk to receive a sample.

Costco’s customer satisfaction guarantee and returns policy does not apply to special order merchandise, custom merchandise and installed merchandise. However your legal rights are unaffected. For further details, please see Delivery & Returns 

- Super compact at just 77cm wide (indoor unit)

- Whisper-quiet in operation, down to 20dBA

- 2.5kW is suitable for rooms up to 20m²

- Seasonal efficiency values of A++ in cooling & A+ in heating

- Comes with survey and installation by F-Gas engineer

Please note: 16amp power supply is required (at outdoor unit location) prior to installation.

Please ensure you read through the installation guide prior to purchase to make sure the system is suitable for your application

This is an installation service only, and does not include any water softeners, drinking water solutions or salt. This Water Softener installation package is for 1 water softener only.