windows and doors start @425/sqft* And 20 years of warranty*



Welcome to SI Windows

 about us img

Our Mission & Vision


At SI Windows, our mission is to revolutionize the way people experience their living spaces by providing high-quality, energy-efficient uPVC doors and windows. We aim to enhance the comfort, security, and aesthetic appeal of homes and businesses while promoting sustainability and environmental responsibility. Through our innovative products and exceptional service, we strive to exceed customer expectations and become the leading choice for uPVC doors and windows in the industry.


Our vision at SI Windows is to set the standard for excellence in the uPVC doors and windows industry. We envision a future where every building is equipped with energy-efficient, durable, and aesthetically pleasing uPVC doors and windows, contributing to a more sustainable and comfortable living environment for all. We aspire to be recognized globally for our commitment to quality, innovation, and customer satisfaction, driving growth and profitability while making a positive impact on society and the environment.

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Our Main Product

How SI Window Work ?

UPVC windows and doors work by using frames made of unplasticized polyvinyl chloride (UPVC),
which is a durable and energy-efficient material.



Weather Resistance

Desires to obtain pain of itself, because it is pain, but because occasionally circumstances occur in which toil.

High Security

Nor again is there anyone who loves or pursues or desires to because it pain, but because occasionally.

Sound Insulation

Nor again is there anyone who loves or pursues or desires to because it pain, but because occasionally.

Happy Customers


Satisfied Customers


Deals Every Month


Google Rating

Some words from our costumers

We've been helping businesses to do their best since 2000.

"I had a great experience working with SI Windows. From the initial consultation to the installation, everything was smooth and professional. The UPVC doors and windows they installed look fantastic and have made a noticeable difference in my home's appearance and energy efficiency. I would definitely use SI Windows again in the future."

Soma Chatterjee

"SI Windows did a fantastic job replacing all the windows in my house with UPVC ones. The difference in energy efficiency and noise reduction is remarkable. The team at SI Windows was friendly, knowledgeable, and completed the job on time. I'm very satisfied with their work and would recommend them to anyone in need of new windows."

Akansha Pathak

"I recently had SI Windows install UPVC doors and windows in my home, and I couldn't be happier with the results. The quality of their products is outstanding, and their customer service was excellent. The installation team was professional and efficient. I highly recommend SI Windows for anyone looking to upgrade their home."

Jay Bakshi