Last Updated on 9 April 2025 by Josh Lucas
Choosing the right double glazed doors is a big decision, but it doesn’t need to be complicated!
Whether you’re here because your current door is letting in a draught, or you’re planning a full home renovation, you’re in the right place.
The world of double glazing doors is bigger and better than ever before, offering energy efficiency, style, and security in one beautifully practical package.
Maybe you’re looking to upgrade the entrance to your home with something modern and minimal. Or perhaps you want something classic that suits a heritage-style property.
Whether it’s double glazed front doors, bifold doors that open out to your garden, or patio sliders to let in more natural light—we’ll help you understand what works best for you.
We’ll also cover which materials work best for your setting, how to customise to your exact requirements, and what kind of support and pricing you can expect.
Contents
- What Are Double Glazed Doors?
- Benefits of Double Glazing
- Types of Double Glazed Doors at GFD Homes
- Double Glazed Front Doors
- Back Doors & Patio Options
- French, Sliding, and Bifold Styles
- Material Options & Finishes
- Customisation & Configuration
- Security & Energy Efficiency
- Installation Support
- Before You Order: Quick Checklist
- Double Glazed Doors Prices
- FAQs: Adjustments, Locks, Cat Flaps
What Are Double Glazed Doors?
Simply put, double glazed doors have two panes of glass with a layer of air or gas in between. This boosts insulation and improves noise reduction compared to single glazing.
They’re ideal for both contemporary and traditional homes, offering style and substance.
The air gap serves as a barrier to heat transfer, keeping warmth in during the colder months and heat out during summer.
The result? A home that’s quieter, more energy efficient, and ultimately more comfortable all year round.
Benefits of Double Glazing
- Thermal efficiency: Keep your home warmer in winter and cooler in summer.
- Noise reduction: Great for busy roads, shift workers, or light sleepers.
- Energy savings: Lower your heating bills—some homes save up to 18% annually.
- Increased security: Tougher to break through, especially with multi-point locks.
- Condensation control: Helps reduce damp and mould risk on windows and doors.
- Comfort: More even indoor temperatures without draughts or cold spots.
Compare at a glance:
| Feature | Single Glazing | Double Glazing |
| Insulation | Poor | Excellent |
| Noise Reduction | Low | High |
| Energy Efficiency | Inefficient | Very efficient |
| Security | Basic | Enhanced |
Types of Double Glazed Doors at GFD Homes
Double Glazed Front Doors
Make a statement with our secure and stylish front door ranges. Choose from traditional flush sash styles to sleek modern aluminium finishes. Our most popular ranges include:
Deceuninck uPVC Glazed Doors
Aesthetic versatility and energy efficiency in a wide range of colours and panel styles. These doors are perfect for homeowners who want style without compromising performance.
Deceuninck Flush Sash Glazed Doors
Period styling with modern credentials—great for cottages or conservation areas. They mimic timber aesthetics with none of the maintenance and meet conservation officer requirements.
Back Doors & Patio Options
Opening onto the garden or patio? You’ll love these:
Sliding Patio Doors
Perfect for smaller spaces or modern homes with panoramic views. Available in 2, 3 or 4-panel configurations, they offer a smooth glide and outstanding energy performance.
For those seeking a premium aluminium solution, the Korniche Cortizo 4700 stands out—combining sleek lines, robust thermal performance, and large-panel capability ideal for contemporary living.
French Doors
Symmetrical elegance, ideal for dining areas or conservatories. Great for both traditional and contemporary properties, they bring a touch of charm and practicality.
Bifold Doors
Fold away completely—bring the garden right into your living space. Ideal for open-plan living, entertaining, or simply enhancing the view.
Our Korniche Bifold doors combine sleek, narrow profiles with innovative engineering. You’ll notice the difference in the perfectly balanced glide, the robust feel of the handles, and the way these doors frame your garden view with minimal interruption. The hidden glazing seals and slim frames mean you’ll enjoy more glass and less frame, creating that seamless connection between your indoor and outdoor spaces.
Smart Aluminium Glazed Doors
Ultra-modern aesthetics with minimal frame lines. These doors are perfect for design-led homeowners looking to maximise light and space.
Aluminium or uPVC?
We offer both. Aluminium doors (Korniche, Smart) provide a high-end, minimal look and slimmer profiles. These are perfect for large panes and modern builds. uPVC doors (Deceuninck) are cost-effective, low-maintenance, and perform exceptionally well in energy efficiency.
Home Match Suggestions:
- Modern new-build? Try Reynaers or Smart aluminium.
- Renovating a Victorian terrace? Deceuninck Flush Sash is ideal.
- Coastal property? Go aluminium for strength and durability against the elements.
Material Options & Finishes
From woodgrain-effect uPVC to powder-coated aluminium in bold or neutral shades, your doors can be tailored to suit any home aesthetic. Fancy Chartwell Green? Or maybe Anthracite Grey? We’ve got it all.
Choose from:
- Smooth, textured or woodgrain finishes
- Over 200 RAL colour options
- Dual colour options (one colour inside, another outside)
- Matching hardware and accessories for a cohesive finish
Top Trending Finishes:
- Anthracite Grey
- Irish Oak
- Smooth Black
- Cream Woodgrain
Need inspiration? Find out more about choosing your perfect door colour
Customisation & Configuration
Choose how your door opens, folds, or slides. With various pane combinations and handle options, you’re in full control of your home’s style and function.
Popular choices include:
- 2-Panel sliding patio for compact spaces
- 4-Leaf bifold to maximise light and garden access
- Side panels or toplights for added light and visual impact
Additional customisations:
- Threshold types (low, weathered, flush)
- Glazing options (clear, frosted, patterned, triple)
- Locking systems (Yale, Ultion upgrades)
- Handle styles (modern bar, heritage, chrome, satin)
Security & Energy Efficiency
- Multi-point locking systems as standard
- PAS24 accreditation available across ranges
- Thermally broken aluminium frames
- U-values as low as 0.9 W/m²K for top-tier insulation
- Optional laminated safety or acoustic glazing
All doors meet or exceed current UK Building Regulations and can be tailored to meet Document Q for new build requirements.
Installation Support
Whether you go for supply-only or our supply-and-fit service, you’ll get full guidance throughout. We’re homeowners too – we get it.
Supply-Only? We include step-by-step instructions, and you can always contact us for advice.
Supply & Fit? Our team handles it from survey to snag-free sign-off. Plus, we’ll guide you on lead times, access checks and building reg considerations.
Before You Order: Quick Checklist
- Have you measured your aperture correctly?
- Decided on opening style (slide, swing, fold)?
- Picked your colour and glazing option?
- Need fitting or going DIY?
- Want side panels or toplights?
- Have you checked if planning permission or building regs apply?
Still unsure? We’re here to help – just give us a shout.
Double Glazed Doors Prices
Prices vary by style, size, and configuration. Get an instant quote on our website or speak to our team for tailored advice.
Budget ranges start from under £1,000. Mid-range (like Deceuninck Flush Sash) £1,200–£2,500.
Premium aluminium doors (such as Smart Designer) £2,500+ depending on size and spec.
E&OE Price etstimations as of 9/4/2025
Ready to Transform Your Home? Let’s Get Started!
Whether you’re leaning towards sleek aluminium bifolds or a charming uPVC French door set, now is the perfect time to take the next step.
You’ve got all the information—now let’s bring it to life in your home.
Call our expert team on 01642 309 576 or get an instant quote online at GFD Homes. Our friendly team is ready to help you choose the perfect double glazed door, tailored to your needs, your style, and your budget.
FAQs for Double GLazed Doors
How long do double glazed doors last?
Double glazed doors typically last between 20–35 years, depending on the material and how well they’re maintained. uPVC tends to last around 25 years, while aluminium doors can go strong for up to 40 years.
Are double glazed doors soundproof?
While not entirely soundproof, they significantly reduce external noise. For homes on busy roads or near airports, upgrading to acoustic or laminated glass can offer even greater sound insulation.
Can double glazed doors increase home value?
Yes, absolutely. New double glazed doors boost kerb appeal and improve energy ratings—both attractive features for potential buyers and property valuers.
Do I need planning permission for double glazed doors?
Most replacements don’t require planning permission. However, if you live in a listed building or conservation area, or you’re making structural changes, always check with your local planning authority.
What is the U-value of a double glazed door?
U-values measure heat transfer. The lower, the better. Our doors range from 1.8 W/m²K to as low as 0.9 W/m²K depending on glazing and material choice—exceeding UK Building Reg requirements.
How secure are double glazed doors?
Very secure. Most come with multi-point locking systems, reinforced frames, and optional upgrades like Ultion locks. Many of our doors are PAS24 certified for extra peace of mind.
If you found this article useful you may also like these..
- Thinking About Aluminium Sliding Doors? Here’s What You Really Need to Know
- Aluminium French Doors: Your Questions Answered
- Aluminium Bifold Doors, Your Questions Answered for 2025
- Mastering Building Regulations: Our Experience with the CABE Certificate in Building Control
Trade Double Glazed Doors: Looking for trade prices? Check out our trade site The Trade Village
