Pete’s Perspective
For more than 35 years, our Managing Director, Peter Wheeler, has been totally committed to searching out new and better ways for improving our customers’ homes.
Here, every month he shares his learning and insights, along with new ideas and top tips.
New Slimline Aluminium Doors & ArtDeco Range Explained
If you’re looking to transform your home with larger glass areas, slimmer frames and a more contemporary feel, our new Slimline Aluminium range could be exactly what you’ve been searching for.
At SEH BAC, we’ve recently introduced an exciting collection of Slimline Aluminium and ArtDeco inspired products, designed to combine modern aesthetics with exceptional thermal performance, security and durability.
One of the most common questions we’re asked is:
“How much do Slimline Aluminium doors cost?”
The answer depends on a number of factors including size, colour choice, configuration, glazing options and hardware upgrades — but this guide will give you a realistic idea of typical pricing.
As with all our pricing blogs, the lower price guide below is based on:
- Standard white finishes
- White hardware
- Minimum sizes
At the higher end of the ranges, prices typically reflect:
- Larger overall sizes
- Dual colour finishes
- Additional side panels or top lights
- More complex configurations
Why Choose Slimline Aluminium?
Aluminium has become one of the most desirable materials in modern home design — and for good reason.
Slim aluminium frames allow for significantly larger glass areas than traditional uPVC or timber, helping create brighter, more open living spaces. The reduced sightlines create a cleaner, more architectural finish while maintaining impressive strength and security.
Our new Slimline systems also offer:
- Excellent thermal efficiency
- High security locking systems
- Low maintenance finishes
- Long lifespan and durability
- Wide colour choice including dual colours
PAS24 upgrade options available
Slimline ArtDeco French Doors Price Guide
Our new ArtDeco aluminium door range combines heritage-inspired styling with modern performance, making it ideal for both period properties and contemporary homes.
With ultra-slim sightlines and steel-look styling, these doors are particularly popular in:
- Victorian renovations
- Industrial-inspired extensions
- Heritage homes
- Contemporary kitchen extensions
The system features slim 51.7mm sightlines, thermally broken aluminium frames and multi-point locking systems.
Approximate Prices
ArtDeco French Doors
Approximately £3,600- £4,500
ArtDeco French Doors with Side Panels
Approximately £5,250 – £6,500
ArtDeco French Doors with Side Panels & Toplights
Approximately £6,700 – £7,500
These doors are especially effective when creating a dramatic rear extension opening while still maintaining a traditional steel-look appearance.
Slimline Aluminium Bi-Folding Doors Price Guide
Bi-fold doors remain one of the most popular options for modern extensions and open-plan living.
Our new Slimline aluminium bi-fold range offers much narrower sightlines than many traditional systems, allowing more glass and less frame.
The slim sash design creates a much cleaner finish while maintaining excellent thermal performance, security and smooth operation.
The systems are available in a wide range of opening configurations and can open inward or outward depending on your project requirements.
Approximate Prices
3 Pane Slimline Bi-Fold Doors
Approximately £4,400 – £5,500
4 Pane Slimline Bi-Fold Doors
Approximately £5,400 – £6,700
5 Pane Slimline Bi-Fold Doors
Approximately £6,600 – £8,100
Slimline Sliding Patio Doors Price Guide
Sliding doors are rapidly becoming one of the most requested products in contemporary home design — particularly for kitchen extensions and modern rear elevations.
Our new Slimline sliding system features incredibly narrow 35mm interlock sightlines, helping maximise natural light and uninterrupted views.
Unlike many traditional sliding systems, both doors slide as standard for increased flexibility and ease of operation.
With panel sizes up to 2.7m high and 3m wide, these systems can completely transform a living space.
For larger openings, these systems create a stunning “wall of glass” effect with minimal visible framing.
Approximate Prices
Slimline Sliding Patio Doors
Approximately £4,500 – £8,500
Standard Aluminium Single Doors Price Guide
For customers looking for a sleek, contemporary entrance or side access door, our aluminium single doors offer an ideal solution.
These doors combine:
- Slim modern styling
- Excellent thermal insulation
- High security multi-point locking
- Low maintenance powder-coated finishes
They are available in a wide range of standard and bespoke RAL colours, with matching hardware options available.
Approximate Prices
Standard Aluminium Single Doors
Approximately £2,100 – £2,600
What Affects the Final Price?
Every installation is made to measure, so pricing can vary based on several factors:
- Overall size
- Configuration
- Colour choice
- Glass specification
- Structural requirements
- Installation complexity
- Hardware upgrades
- Triple glazing options
The prices above are designed as a realistic guide to help customers budget before arranging a quotation.
VAT included in all prices
White Aluminium Matt Finish Included as Standard
Unlike many other installers that charge a premium for white aluminium finishes, SEH BAC supplies White Matt aluminium as standard across our entire aluminium range at no additional cost.
This specialist finish has been carefully selected to provide an excellent colour match alongside existing white uPVC windows, trims, fascia boards and conservatory roofs — making it especially popular for modern extensions and renovation projects.
Matching white trims and finishing details help create a cleaner, more integrated look without the visual clash that can often occur between different materials, a common complaint with White Gloss.
It’s one of the many small details that helps our aluminium range blend effortlessly into both traditional and contemporary homes.
Why Choose SEH BAC?
At SEH BAC, we’ve been improving homes across the South East for more than 60 years, with thousands of satisfied customers and more than 25,000 installations currently under guarantee.
We provide:
- Fully employed installation teams
- 10 year guarantees
- FENSA registered installations
- Flexible finance options
- Expert survey and project management
- Showrooms across the South East
If you’d like a more accurate quotation for your project, the best next step is to arrange a free design consultation or visit one of our showrooms to experience the new Slimline range in person.
Final Thoughts
Visit your nearest SEHBAC or FineLine showroom today and design your perfect door with confidence.
We hope this has helped bring a bit of clarity to what can often feel like the “holy grail” of pricing in our industry.
👉 See our guide to approximate price guides on composite and uPVC doors
We look forward to welcoming you into one of our showrooms soon.
Visit your nearest SEHBAC showroom and speak to our friendly team today.
