2016
Established in Kolkata
20 Years
Product Warranty
EN 12608
Certified UV Stability
100%
In-House Manufacturing
Building Better Spaces with Quality uPVC Windows and Doors
Promiplast is a uPVC windows and doors company based in Kolkata, West Bengal, specialising in the manufacturing and installation of uPVC window and door systems for residential and commercial properties.
Established in 2016, Promiplast began with a focus on bringing modern manufacturing technology and quality uPVC profile systems to the local market. Since then, the company has focused on developing window and door solutions that combine functional performance, practical design and suitability for different architectural requirements.
From contemporary apartments and independent houses to offices and commercial buildings, Promiplast works with customers to identify window and door configurations that suit their spaces, ventilation requirements, natural lighting preferences and design expectations.
Our approach goes beyond supplying a window or door. We focus on the complete process, including product selection, measurement, manufacturing, installation and customer support.
To manufacture quality uPVC windows and doors that improve the functionality, comfort and value of residential and commercial spaces through thoughtful design, modern manufacturing practices and dependable customer service.
Kolkata & West Bengal Climate Focused
Engineered to withstand coastal humidity, severe monsoon rainfall, intense tropical UV radiation, and dense urban traffic noise.
Our Journey Since 2016
Promiplast started its operations in 2016 with the objective of providing quality uPVC windows and doors using modern manufacturing technology.
The company places importance on profile quality, UV resistance and mechanical properties, recognising that window and door systems must perform under changing weather conditions and regular everyday use.
Operating in Kolkata and serving customers across West Bengal, Promiplast understands the practical requirements of buildings in this region. High humidity, seasonal monsoon rainfall, strong sunlight and urban noise are among the factors that influence the selection of suitable window and door systems.
Our focus is to provide product solutions that consider these conditions while meeting the functional and aesthetic requirements of each project.
Our Manufacturing Approach
Manufacturing quality plays an important role in the overall performance of a uPVC window or door. The quality of the profile, fabrication, hardware selection, glazing and installation all contribute to how the finished system operates. Promiplast uses modern manufacturing technology and in-house manufacturing processes to produce uPVC window and door systems.
Profile Quality
Selecting uPVC profile systems with appropriate mechanical properties, structural chamber walls, and certified weathering performance.
UV Resistance
Giving paramount importance to tropicalized profile formulation and high titanium dioxide content for resistance to intense sunlight exposure.
Fabrication Quality
Paying rigorous attention to precision miter cutting, multi-point fusion welding, corner cleaning, and hardware assembly.
Product Configuration
Considering opening style, structural dimensions, wind-load ratings, and intended everyday application before finalising a system.
Professional Installation
Ensuring that the finished window or door is plumb, square, anchored with certified fasteners, and perimeter sealed with elastomeric silicone to guarantee draft-free, leak-proof performance.
Certified EN 12608-1:2016 Performance
Promiplast states that its uPVC profiles are developed to offer UV resistance and mechanical properties beyond the parameters specified in EN 12608-1:2016. Customers can contact our engineering team for technical documentation and test certificates.
Why Choose uPVC Windows and Doors?
The material and construction of a window or door influence its long-term performance. uPVC, or unplasticised polyvinyl chloride, is a rigid material commonly used in modern window and door profile systems.
Resistance to Moisture and Corrosion
Unlike timber, uPVC does not rot due to moisture exposure. It also does not rust like conventional steel. This makes it a practical material to consider for buildings exposed to humid conditions and seasonal rainfall.
UV and Weather Resistance
Quality uPVC profiles are formulated to withstand outdoor exposure. Their performance depends on profile formulation, manufacturing quality, and suitability for the intended environment.
Thermal Insulation
The profile construction and glazing configuration can contribute to reducing heat transfer through a window or door. The actual insulation performance depends on the complete system, including glass, seals and installation.
Noise Reduction
A properly designed and installed uPVC window or door system can help reduce the amount of external noise entering an indoor space. The result depends on glazing selection, frame design, sealing and installation quality.
Low Maintenance
uPVC frames generally require less routine maintenance than timber frames. Regular cleaning and periodic inspection of moving hardware, drainage and seals help maintain their operation.
Design Flexibility
uPVC window and door systems are available in different opening styles, dimensions and design configurations. The appropriate option depends on architectural requirements and available product specifications.
Designed for Kolkata's Climate and Building Requirements
Selecting windows and doors in Kolkata involves considering more than appearance. The region experiences hot summers, high humidity and seasonal monsoon rainfall. Buildings may also be exposed to dust, traffic noise and strong sunlight. The choice of a window or door should therefore consider:
• Rainwater Management & Drainage
Engineered weep slots and stepped sill drainage channels to prevent water accumulation during severe monsoon downpours.
• Profile & Sealing Arrangements
Continuous EPDM compression gaskets eliminate whistling drafts, dust seepage, and moisture ingress.
• Tailored Glazing Solutions
Toughened, tinted, frosted, or acoustic double-glazed units selected for daylight, privacy, and noise damping.
• High-Grade Hardware Quality
Corrosion-resistant steel friction stays, rollers, and multi-point locks tested for heavy everyday use.
• Solar & Environmental Protection
Lead-free profiles with high titanium dioxide (TiO2) content to prevent chalking or discolouration.
• Accurate Measurement & Fixing
Laser measurement and factory-standard anchoring ensure smooth, bind-free opening for decades.
Our Range of uPVC Windows
Different rooms and buildings require different window-opening mechanisms. Promiplast offers a range of uPVC window designs to address different ventilation, accessibility and space requirements:
uPVC Casement Windows
Operate on side hinges and open inward or outward. They provide a wide opening for ventilation and are suitable for bedrooms, living rooms and areas where maximum airflow is preferred.
uPVC Sliding Windows
Operate horizontally along tracks. Since the sash moves within the frame, they do not require additional clearance. A practical option for apartments, balconies and spaces where clearance is limited.
uPVC Folding Windows
Multiple connected panels that fold and stack to one side when opened. They create a wider opening and are useful for spaces where an open connection between indoors and outdoors is desired.
uPVC Top Hung Windows
Hinged along the upper edge, allowing the lower section of the sash to open outward. Provides controlled ventilation while shielding interiors from rain in bathrooms, kitchens, and basements.
uPVC Tilt and Turn Windows
Offer two opening functions through a specialised hardware mechanism: tilts top inward for draft-free ventilation or opens fully inward from the side for easy glass cleaning and wide ventilation.
Our Range of uPVC Doors
A door needs to be selected according to its location, opening dimensions, frequency of use and access requirements. Promiplast offers different uPVC door styles for residential and commercial applications:
uPVC Casement Doors
Side-hinged opening mechanism suitable for applications where a conventional hinged door opening is required, including selected balcony, patio and room openings.
uPVC Sliding Doors
Move horizontally along tracks and are useful where a swinging door would occupy valuable floor space. Commonly considered for balconies and openings benefiting from a wider glazed connection.
uPVC Folding Doors
Multiple connected panels that fold and stack to one side. Depending on opening dimensions and configuration, they create an expansive passage between adjoining indoor and outdoor spaces.
uPVC Top Hung Doors
Require a clearly defined operating mechanism (top-hinged or overhead track sliding) and suitable supporting hardware. Selected according to actual product system and application.
uPVC Tilt and Turn Doors
Specialised hardware provides two opening positions: tilt position for controlled ventilation, turn position for inward swinging passage. Suitability depends on door dimensions, hardware capacity, and clearance.
From Product Selection to Installation
A reliable window or door installation involves several stages. Promiplast provides customer assistance throughout the entire process:
Understanding Your Requirements
The first step is understanding the type of building, location of the opening, preferred design and functional requirements.
Site Measurement & Consultation
Accurate measurements help determine the appropriate frame dimensions and opening configuration. Site conditions are also considered.
Product & Configuration Selection
Customers discuss available window or door styles, dimensions, glazing requirements and relevant hardware options with our team.
Manufacturing & Fabrication
Once requirements are finalised, the selected system moves through our precision in-house manufacturing and fabrication process.
Professional Installation
The manufactured systems are installed at the site. Correct alignment, fixing, sealing and smooth operation are meticulously verified.
Customer Support
Promiplast provides customer assistance after installation. Warranty coverage and service conditions are backed by our 20-year commitment.
Quality, Comfort & Longevity
To manufacture quality uPVC windows and doors that improve the functionality, comfort and value of residential and commercial spaces through thoughtful design, modern manufacturing practices and dependable customer service.
Trusted Regional Leader
To strengthen our position as a trusted uPVC windows and doors manufacturer in Kolkata and West Bengal by focusing on product quality, manufacturing development, customer relationships and practical window and door solutions.
Frequently Asked Questions About Promiplast
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Ready to Upgrade Your Windows & Doors?
Whether you are planning a new home, renovating an existing property or selecting window and door systems for a commercial building, choosing the right product and installation approach is important. Speak with the Promiplast team to discuss your requirements, explore available uPVC window and door designs and understand the suitable configuration for your space.
Showroom Address
AA-48, Sector 1, Salt Lake, Kolkata – 700064, West Bengal