ALUMINIUM ENTRANCE DOORS & FRONT DOORS
Slim and stylish, secure, insulated and weather resistant, our aluminium entrance doors create front doors, side entrance doors, and patio doors for garden access. They can even be used inside, separating a room from a conservatory.
Ideal as a modern replacement for dated doors anywhere in a property and also suitable for light-commercial installations, we make all our aluminium entrance doors to order. A reliable trade supply service in quality-made doors for the glazing trade, homeowners arranging their own installation, builders or property developers.
Trade Supply Entrance Doors
Aluminium entrance doors, crafted by 23 DOORS, create front, side or French doors with optional top and side panels.
Front, Single and Double Doors
Insulated profiles, attractive colour finishes, and stylish hardware, with superb build quality, fit and finish.
Fully glazed or decorative
Made-to-measure doors available fully glazed, with midrails or decorative aluminium panels.
Smart Design
Suitable for replacement doors or new build openings, ready to fit and glaze.

Alunet BF73 entrance doors
Using the same advanced profile as our bifold system, With superb engineering and overall design, Alunet BF73 entrance doors comprise quality insulated aluminium profiles with a polyamide thermal break and professionally applied colour finishes. With our precision build and product quality, our entrance doors come as fully glazed front doors or enhanced with a contemporary or traditionally styled thick thermal aluminium panel. For the rear or side of the property, we can create reliable, secure and attractive single or French doors, with optional fixed side or top panels, midribs and optional low threshold.
High-tech slimline profiles
With some of the narrowest frame and sash profiles, our doors offer a sleek and slimline overall appearance, thinner in overall appearance than composite doors or timber doors. Both single and double doors provide the maximum amount of glass, more light and an overall better-looking door product.

Quality insulated panels
Using the renowned Hallmark aluminium panels, our front doors are super-stylish and strong. Thick powder-coated aluminium skins outside, either solid or partially glazed. Internally the aluminium panels feature a thick thermal core with added timber or steel reinforcement.
Secure and Energy Efficient
Alunet BF73 entrance doors can achieve low U-Values depending on the panel type and glass specification. All comfortably meet current Building Regulations. We use only the highest quality Brisant Sweet Door furniture, and superbly engineered Ultion locks to give our doors the ultimate security endorsement and give you maximum peace of mind.


Key Features
- Decorative panels of fully glazed.
- Panels up to 1.2m wide and 3.0m high.
- Brisant Sweet furniture and Ultion locks.
Made by 23 DOORS – a complete property solution
Front Door
Quality front doors with optional toplights or sidelights in a range of solid or partially glazed door skins.

- DDA compliant with a choice of thresholds/cills.
- Comprehensive choice of door accessories.
- Smooth, professionally applied colour finish.
Single or French Door
Contemporary styling, more glass, less visible aluminium for the side or rear of any property.

- Double or triple glazed.
- Open in or out.
- Rebated or low threshold.
Product Colours
We supply our bi-folds in black, white and anthracite grey as standard, but we can offer any bespoke colour option on request.
Black
White
Anthracite Grey
RAL Colours
Reliable front, side or rear doors
Our aluminium entrance doors reduce draughts and provide outstanding weather performance. They’re more than a match for the British weather – even in the most extreme locations. Designed from the premium Alunet system, all our front, side or French doors promise long-term reliability and ease of use. Internal glazing beads, premium lock brands, security cylinders and overall great design give you extra peace of mind.
23 DOORS – aluminium door expertise
Manufactured by us with precision and care, our trade supply entrance doors come backed with our personal and efficient service, with excellent prices and impressive lead times. Your door leaves and outer frame are provided fully fabricated, with glazing beads, cills, and add-on extension pieces all provided cut to size. Door panels are glazed into the doors as standard. Accompanying your quality-made doors is easy to identify component kits and full installation instructions.
The benefits of Alunet BF73 entrance doors.
Our front doors come in six appealing styles all with a luxurious look and feel, excellent specifications and high performance. Slimmer than PVCu or timber, with less thermal expansion and optimum reliability. Aluminium bifolds are trusted for their strength, smooth operation, virtually unlimited colour choice and impressive design. The insulated profiles work with high-specification safety glass creating energy-efficient doors and helping save money on energy bills.
Extensive choice of door hardware and accessories.
Black, white, satin or polished chrome, gold and rose gold finishes are available for the lever handles, the optional door knockers and letterplate. Also available are door numerals and extra security for the cylinder escutcheon with standard or high security options.
Create standard or oversized residential doors
With door panels up to an impressive 1.2m wide and 3.0m high, Alunet BF73 entrance doors are possible at larger sizes than other systems on the market. As a result, our doors meet most property and client requirements, also reducing the need for top or side panels in wider or taller door openings.
Matching single or double doors
For properties needing bifold doors as well as residential doors, our system creates a complete home solution. Bifolds feature the same slim bifold profiles. You benefit from matching aluminium doors from the profile design right up to the door hardware.
Frequently Asked Questions
23 DOORS are experienced aluminium door manufacturers for the trade and can help you get the ideal front door for your home. Here, we answer some of the most common questions about aluminium doors.