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Duroplast is the pioneer and largest manufacturer of PVC Profiles for Door Frame, Door Shutter, False Ceiling, Partition, Kitchen Cabinet and Custom moulded Profiles since 1986. It has taken a step forward by diversifying into manufacturing of uPVC profiles for windows & doors for the first time in eastern India.

With rich experience for more than 25 years and keeping in mind the threat of Global Warming, a mission to “Save Tree and Greenery” Duroplast has come out with uPVC profiles for Windows and Doors with special formulation for tropical Indian climate with special additives that ensures long durability to our windows. We have our own design centres and in-house facilities for die and tools manufacturing and state of the art imported machineries. Being specialized in design, extrusion, fabrication, installation and services, Duroplast window & Door Systems is a complete solution provider for uPVC windows & doors.

uPVC windows & doors are now very much popular amongst India’s best known builders and architects. They recommend uPVC Window & Door Systems for its unique features including strength, durability and lasting value. Its popularity is increasing day by day amongst the masses. With a strong dealer network, the company has established itself as a reputed manufacturer and it has all the facilities and expertise and to develop any type of profile. Duroplast transforms potential into performance to make the living and life style more comfortable and happy for the present and next generation.

Duroplast products have been widely accepted by different construction agencies in Central and State Government sectors like CPWD, PWD (West Bengal), Coal India Limited, KMDA, Railways, MES. Kolkata Improvement Trust, Airport Authority of India, Postal Departments, RBI, etc. and may other Private Sectors.

Energy Efficient

Duroplast uPVC windows possess great energy saving potential. Window profiles have been designed with multi-chambers which reduce transfer of heat - thus saving energy by 30 35%.

Sound & Thermal Insulation

Duroplast Windows are made up of multi-chambered profiles which are fusion welded, tight sealed that reduce noise - providing user comfort.
Our Windows are sealed with the masonry wall with silicon leaving no gaps between the frame and the sash preventing noise, dust and pollution.
By using Duroplast Double Glazed Windows, we can further improve the sound and thermal insulation quality which again helps in saving energy.

Monsoon Proof

Duroplast uPVC profiles are made up of polymers which practically do not absorb water. Moreover, our profiles are uniquely designed with water drainage and gradient slope which ensures that rain water flows outwards .

Maintenance Free

uDuroplast uPVC windows are extremely easy to maintain since easy cleaning can be done from inside using soapy water.
It does not require painting or other maintenance.

Tough and Durable

Plastic profiles have special additives High strength, dimensional stability and weather stability to make the material both tough and durable. It does not fade or get discoloured & therefore an excellent investment for your home.

Fire Retardant

uPVC raw material is inherently flame retardant and resists sustained burning. The material is classified as self-extinguishing so there is no chance of catching fire.

Weather Proof

With more than 25 years of experience in PVC Profiles extrusion, we have developed special formulation for tropical Indian climate for our uPVC Windows with special additives which ensures long durability to our windows.
Our special additives are impact modifier for strength, titanium dioxide for ultra violet rays and heat stabilizers to retain the profile shapes properly at high temperatures.

Eco Friendly

uPVC windows & doors are eco-friendly. uPVC is an excellent material for recycling as they can be fully recycled. Being a replacement for wood and energy intensive material, it saves forests and environment.

Rust & Termite Proof

Duroplast uPVC windows & door profiles are free from rotting, rusting and corroding unlike conventional aluminium and wooden windows.

Customized Windows and Doors

Duroplast uPVC Windows & Doors are made as per customers requirement. Our windows and doors can be made in various designs. These include Casement Window, Sliding Window, Combination Window, Tilt & Turn Window, Bay Window, French Door, Balcony Door, etc.


To provide high quality of uPVC & PVC extruded profiles, windows & doors & superior customer services with the focus to ensure customers satisfaction.


We shall strive to continuously expand our uPVC & PVC extrusion business and be the supplier of first choice to all our customers. We shall simultaneously look out for new and emerging business opportunities related to our field of competence.


  • Commitment - Do whatever it takes to deliver superior customer value.
  • Courtesy  Towards our Customers, Employees, Vendors and the Society at large.
  • Integrity  Honesty in every action.
  • Speed Act with urgency to deliver what we promise.
  • Team-work  Thinking and working together across hierarchy levels.
  • Infrastructure

    Duroplast is the first and the leading manufacturer of PVC profiles in eastern India. It has taken a step forward by diversifying into manufacturing of uPVC profiles for doors and windows for the first time in eastern India. Its production units are located in Kolkata and Howrah.

    Duroplast has a well developed state of- the- art infrastructure spread across a massive area within its facility and divided into separate extrusion facility for uPVC & PVC profiles. We have fabrication unit for uPVC windows & doors, designing, printing and tool making unit with all the advanced machineries & necessary equipment which are managed and maintained by qualified professionals.

    We abide by the best business values and ethics and stringently adhere to our quality policies. Focusing on intensive research process, we bring optimum solution to our clients problems. We keep on improving quality and performance of our products, our strenuous efforts towards this direction helps us to gain clients satisfaction and appreciation from the customers all over India.