Gealan S9000
Looking for doors that move with silky smoothness despite their impressive dimensions? Discover the system where a 400-kilogram panel slides with a finger's touch, opening up a panorama up to six metres wide.
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HST Terrace Doors - Premium Energy Efficient Solutions
Did you know your home can open up to the garden, creating one harmonious, light-filled space? HST lift-slide patio doors are the key to this transformation. Our philosophy leaves no room for compromise, which is why the finest German engineering forms the heart of our constructions, guaranteeing that you can operate even a 3-metre wide panel with one hand, effortlessly. Imagine perfectly smooth, barrier-free transitions that ensure absolute safety for your family. This combination of minimalist design and reliability is crowned by our guarantee of perfect thermal installation. Discover panoramic views without any compromises.
Why Choose PVC HST Doors
5 Key Benefits That Will Transform Your Home
HST lift-slide doors are far more than just modern glazing systems – they represent a true revolution in how you experience your home. Imagine the boundaries between interior and nature dissolving, creating a space full of light and freedom. The advanced technology we've selected makes these dreams a reality. Discover five unique advantages that make HST doors a thoughtful investment in daily comfort, unwavering security, and the increasing value of your home for generations.
HST Sliding Doors Profiles
HST Door Profiles made of GEALAN PVC Profiles – The Foundation for Large Glazing
Our philosophy leaves no room for random choices. That's why our HST sliding doors rely exclusively on German precision GEALAN profiles – solutions synonymous with uncompromising durability and timeless design. Our range includes lift-slide systems that create spectacular glazing areas up to 14 m², while guaranteeing excellent thermal insulation (U-value as low as 0.78 W/m²K and the legendary smoothness of the "lift and slide" mechanism. We offer systems with low thresholds as well as completely threshold-free solutions that fulfil even the boldest architectural visions. Massive steel reinforcements in GEALAN profiles ensure that panels up to 3 metres wide maintain perfect stability and reliability for years to come.
PVC HST Sliding Door Personalisation
Create a Solution Tailored to Your Dreams
Your doors should be as unique as you are. That's why we provide the tools to customise your energy-efficient HST doors to your individual needs, aesthetics, and lifestyle. Configure glazing packages for maximum savings, add intelligent smart home features, and match every detail – from handles to security systems – to your vision. We believe premium solutions should be a thoughtful standard. We create HST doors perfectly matched to your home, ensuring the highest level of airtightness and unparalleled comfort throughout the year.
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Color Palette
Gealan color paletteGEALAN profiles offer one of the richest color palettes on the market. The premium S9000 system provides full access to exclusive
GEALAN-acrylcolor® technology with unique metallic colors. The universal S8000 combines a wide range of wood-like decors with popular shades like anthracite. With us, you’ll match doors to any architectural vision. - 02
Glazing
In our HST sliding doors, you can choose glass that becomes the guardian of your comfort. Energy-efficient glass with warm edge spacers maximises insulation. Toughened glass provides several times higher strength and safety upon breakage. Laminated glass (P4A burglar-resistant class) becomes a barrier against unwanted guests. Also available are acoustic glass to envelop your home in silence, plus solar control and decorative glass for light control and privacy.
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Handles
The handle isn't just an accessory – it's your daily, tactile contact with the doors. Ergonomic German Hautau handles offer a wealth of designs and finishes, from classic silver to trendy matt black. This is a durable premium solution, designed for your maximum comfort and operating pleasure.
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HST Door Hardware
We exclusively use German Hautau hardware from the ATRIUM® series, specially created for advanced sliding doors. Available variants support panels of various weights, offering smooth manual operation, soft-close function, as well as fully automated app-controlled drives. Certified for 20,000 operating cycles with manufacturer's warranty, they promise decades of reliability.
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Thresholds
We offer a complete range of HST thresholds, perfectly matched to every project. Our Hautau Thermo Top® thresholds, thanks to advanced German composite technology, guarantee excellent thermal insulation at Uf=1.29 W/m²K. This is your assurance of absolute airtightness, effective elimination of thermal bridges, and genuinely lower heating costs. We deliver concrete parameters for conscious and demanding clients.
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Smart Home
Step into the future with doors that intuitively care for your comfort and security. Have you ever slammed a door? Forget about it. The Soft Close system gracefully decelerates even 400-kilogram panels, protecting both the construction and residents. Optional quiet drives allow door operation via remote control or smartphone, integrating them with your smart home system. This is 21st-century comfort, where technology discreetly serves your daily convenience.
Frequently Asked Questions
At BWS Technika Budowlana, we know that choosing windows and doors is a decision for years. That's why instead of marketing, we offer you our knowledge and experience. In this section, you'll find clear, professional answers to the most common questions about energy-efficient solutions, certificates, warm installation, and key technical parameters.
What is the HST door system and how does the lift-slide mechanism work?
HST stands for “Hebe-Schiebe-Tür” in German, literally meaning lift-slide door. The mechanism works with ingenious simplicity: when you turn the handle, the panel first lifts a few millimetres, releasing seal pressure. Then, without any resistance, it glides smoothly on rollers in the tracks. This innovative system allows even very heavy glass constructions to be operated with remarkable ease, which is the key advantage over older sliding door types.
HST or PSK – which sliding doors to choose for the patio?
The choice between HST and PSK depends mainly on your priorities: aesthetics, comfort, and budget. HST doors are the premium solution, featuring very low or completely flat thresholds, creating barrier-free transitions. They also enable gigantic glazing areas (up to 14 m² ). The PSK system (parallel-slide-tilt) has a high threshold like a window frame and smaller maximum dimensions. Its advantage is the tilt function absent in HST, and usually a lower price. In summary: HST is the choice for uncompromising projects focusing on design and maximum glazing.
How much do HST PVC patio doors cost?
The price of HST PVC doors depends mainly on construction dimensions, opening scheme, profile colour and chosen glazing package. As a guide, the cost of standard doors with dimensions 4000×2400 mm is 3460-4610 EUR gross (without installation). Standard white is the base option, while wood-effect foils or anthracite increase the price. Additional elements such as anti-burglary safety glass P4A or electric drive also affect the final value. The cost of professional warm installation must be added to the product price, which is a key element of the investment (typically 15-25% of the order value).
What does proper thermal installation of HST doors with low threshold involve?
Proper installation of HST doors is an art upon which their years of trouble-free operation depend. Key factors include stable threshold support along its entire length and solid mechanical anchoring to the building structure. We use three-layer sealing according to the principle “tighter inside than outside” and structural anchors, never relying solely on mounting foam. Precise levelling of the entire construction is extremely important. Certified thermal installation is your guarantee that the doors will maintain their parameters and functionality for decades.
What are the main advantages and disadvantages of HST doors in daily use?
The advantages are spectacular: panoramic views thanks to glazing up to 14 m², complete freedom and safety with low thresholds, incredibly easy operation, and excellent thermal insulation. Add to this modern aesthetics and space-saving in the living room. Disadvantages? Mainly the higher price compared to PSK systems and lack of traditional tilt function. HST doors also require solid preparation of the building structure and are absolutely dependent on perfect installation, which is why choosing an experienced installer is so crucial.
Do PVC HST doors qualify for the Clean Air Programme?
Yes, definitely. Modern, energy-efficient PVC HST doors qualify for subsidies in the Clean Air Programme, provided they meet the heat transfer coefficient requirement of Uw ≤ 0.9 W/(m²K). Most systems we offer with triple glazing easily meet these standards, achieving values in the range of 0.78-0.90. Investment in thermally-insulated HST doors therefore means not only comfort but also the possibility of obtaining grants and even greater energy savings.