Bespoke Home Improvements Across Essex

Choose from a range of home improvement options with Zenith, including windows, doors, conservatories, orangeries, roofs, driveways and patios.

"Zenith really went above and beyond."

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Happy Customers
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Outdoor Seating And Garden Furniture On Patio Of Contemporary Home


Years Experience

We Cover The Whole Of Essex

  • Rainham
  • Hornchurch
  • Romford
  • Brentwood
  • Basildon
  • Southend
  • Upminster
  • Grays
  • Chelmsford
  • Ilford
  • Dagenham
  • Barking
  • Chigwell
  • Loughton
  • Buckhurst Hill
  • Harold wood
  • Havering
  • Orsett
  • Aveley
  • Epping
  • Hainault
  • Abridge
  • Ongar
  • Chigwell

About Zenith Windows

Zenith Windows Limited is a reputable company with over 25 years of experience in home improvements, based in Chelmsford. We serve all of Essex and our work is always of consistent high quality, backed by positive reviews and recommendations. We always provide a free, non-obligatory quote before starting any work, so please don’t hesitate to give us a call. We would be happy to visit your property and assess the job.


We take pride in our work and our customers can be confident they are receiving a quality build from qualified professionals. Our craftsmen take care in their work so that our customers don't have to settle for 'good enough', but receive excellence.


We offer straightforward quotations and practical advice. We would never try to sell our customers something they might not need. Instead, we offer the benefit of our expertise in a way that is tailored to you and easy to understand. Our customers keep coming back to us because they trust us.


We do not perceive deadlines as suggestions. If we can manage to deliver on time, we will do so without any unnecessary drama or commotion.


We appreciate that you have to live in your home after we finish our work for the day. For that reason, we always aim to leave a site that is safe, clean, and tidy at the end of our working day so you can continue to enjoy your home.

The Benefits of using zenith windows

Why you should choose us?

Zenith Windows Limited is an Essex-based, family-run building company that provides excellent service and specialises in a wide range of home improvement services. With more than 35 years of combined experience, our customers can be confident that they will receive expertise and reliability in whatever we do.

We have specialist tradespeople in a wide variety of areas, so you can rely on us to do what we say. Whatever way you want to improve your home, we offer services and products that are both excellent and affordable. Please get in touch and we can discuss how we can help your ideas take shape.

Our Promise

We will work diligently to make your refurbishment dream a reality, adhering to a deadline and a set budget. Our team of refurbishment experts will stop at nothing to create a home you will love.

Free No Obligation Quote

After your consultation, our team will receive your initial quote and detailed requirements in order to generate a finalised written quote.

10 Year Zenith Guarantee

Our 10-year Zenith Guarantee applies to every installation we do. This means you can be confident that, in the unlikely event that something goes wrong, our team will be there to help fix it as quickly and efficiently as possible. Our friendly team is always available to answer any questions you may have, so you can be sure that your home improvements will be a wise investment when you choose Zenith.

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Country Home With Casement UPVC - Zenith Windows Limited
Sliding Sash - Zenith Windows Limited
our process

4 simple steps to order improvements for your home

We understand how crucial it is for you to feel confident in the people you’re entrusting your home to. That’s why, at Zenith, we customise every experience to suit your individual needs, ensuring a smooth and professional experience from start to finish.


Make Appointment

We will book an appointment at a time that suits you.


Free No Obligation Quote

At the appointment we will take measurements and provide you with a free no obligation quote.


Delivery To Your Home

Once you give the go-ahead we will deliver the products to your home ready for installation.


Installation & Enjoy!

Our installation team will fit the products to the highest of standards ready for you to sign off on the project, only when you are happy with your home improvements.


What our customers say about us

“I have been nothing but pleased with my installation from Zenith Windows Limited since day one. The high-quality job carried out by Andy and John was excellent. I am very grateful for their hard work and politeness at all times. I would recommend Zenith to anyone seeking a top-class product and great customer service. Thank you, Zenith.”

Mr. & Mrs. Daley




Professional Team


Projects Completed


Satisfied Customer

Improve your home with Zenith

Choose from a range of home improvement options with Zenith, including windows, doors, conservatories, orangeries, roofs, driveways and patios.