Spitfire S100 Entrance Doors | Essex Bi-Fold Doors Company

Spitfire S100 Aluminium Entrance Doors

Engineered for strength and style, the Spitfire S-100 Entrance Door offers a secure and refined aluminium entrance solution for contemporary homes across Essex and the South East. Combining modern aesthetics with robust construction, it delivers precision performance, everyday durability, and long-term peace of mind.

With over 40 carefully designed styles available, the range provides a versatile selection of panel designs along with flexible configurations including single doors, sidelights, and toplights, allowing you to create an entrance that is tailored to both your property’s proportions and architectural style.

Built around a strong 64 mm aluminium and steel door slab, the S-100 achieves excellent thermal efficiency with U-values from 0.77 W/m²K. Security is reinforced through PAS24 and RC2 certification, while triple glazing as standard enhances insulation, safety, and overall performance.

Key Benefits

Range of over 40 modern door styles, with flexible options including sidelights and toplights for tailored entrance designs
Bespoke sizing up to approximately 1,208 mm wide × 2,476 mm high for larger architectural openings
Triple glazing as standard for improved insulation, security, and acoustic performance
Precision-engineered 64 mm aluminium and steel door slab for strength and long-term structural stability
High thermal efficiency with U-values from 0.77 W/m²K (solid configurations) and 0.88 W/m²K (glazed designs)
High-security multi-point locking system, PAS24 and RC2 certified for enhanced protection
Solar Shield finishes designed to minimise heat absorption and maintain surface stability
Extensive range of RAL colours, dual-colour options, and premium textured finishes
Contemporary handle systems including long bar handles and premium internal lever options

Why Choose Essex Bi-Fold?

30 years Experience

Over 30 years of specialised expertise in aluminium entrance and internal doors

Origin Premium Partner

Approved installer for leading brands including Origin, Cortizo, and Spitfire

Local specialists

Local specialists proudly serving homeowners across Essex and the South East

Workmanship

Backed by a workmanship warranty and dedicated aftercare service for complete peace of mind

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Jeanette White

"The Bi-fold doors are amazing. The showroom has a few full set-ups which allowed me to have a good look and try it out before deciding. "

Raymond Law

"We visited Essex Bi-Fold doors and met with Clive and were impressed with there showroom and expertise. The doors we ordered look great, and the quality is excellent. "

Lester Wadden

"Essex Bi-fold Replaced our two old Kitchen roof windows with new Korniche roof lanterns. The whole experience, from initial enquiry to completion of installation, was excellent. The design of the new windows is so much more efficient, allowing more light into the kitchen."

Vicky Knight

"Wonderful experience from start to finish. We purchased Origin Bi-folds from Essex Bi-Folds August 2025. Easy to purchase, great showroom with lots of options, good price, amazing quality. "

The Bootlegger

"Great service and communication. OS-29 sliding door went in without issues. We’re really glad we found Essex Bi Fold as they’ve been on point. Loving the door quality and look. Feels very strong, door glides open with ease. 10/10."

Karen Scarsbrook

"Highly recommend this company. Everyone we dealt with from Lee in the office, his manager and the installers were extremely nice and super helpful - going the extra mile to get the finish we desired. "

Paul Marsh

"Absolutely fantastic team Clive Lee and the guys couldn't do enough for you. The difference its made to our lives is insurmountable."

Recent Projects

Real projects, real results - crafted with precision and care

Explore our latest projects featuring bi-fold doors, sliding doors, entrance doors, and windows - transforming homes with light, space, and modern design, all crafted with precision and care.

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A Modern Touch for a Countryside Classic

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Open-Plan Garden Transformation

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Beaumont Hall Barns Restoration

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High Spec Essex Development

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Chelmsford Conservatory Transformation

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Light-Filled Kitchen Extension

Questions? We’re Here to Help

Find answers about our services - or ask us anything you don’t see.

What is a Spitfire S-100 front door?

The Spitfire S-100 is an aluminium entrance door system designed as an affordable alternative to premium ranges, offering high security, modern design, and strong thermal performance for residential properties.

Are Spitfire S-100 doors energy efficient?

Yes, S-100 doors are highly energy efficient aluminium front doors, with U-values from 0.77 W/m²K, helping to reduce heat loss and improve overall home insulation.

How secure is a Spitfire S-100 entrance door?

S-100 doors are built for security, featuring a multi-point locking system and certifications including PAS24 and RC2, making them suitable for modern UK security standards.

Are Spitfire S-100 doors better than composite doors?

Compared to composite doors, S-100 doors offer stronger aluminium construction, better thermal efficiency, and a more premium appearance, making them a popular upgrade choice.

Can I get a made-to-measure Spitfire S-100 door?

Yes, all S-100 doors are made to measure, with bespoke sizing available up to approximately 1,208 mm wide and 2,476 mm high, ensuring a perfect fit for your home.

Do Spitfire S-100 doors come with triple glazing?

Yes, triple glazing is included as standard, improving insulation, security, and noise reduction for your entrance door.

What colours and finishes are available for S-100 doors?

S-100 doors are available in a wide range of RAL colours, dual colour options, and premium finishes, including textured and durable coatings designed for long-term performance.

Are Spitfire S-100 doors suitable for modern homes?

Yes, S-100 doors are specifically designed for modern and contemporary homes, offering sleek designs, clean lines, and customisable configurations to match current architectural styles.