Huge Summer Savings
Enjoy Summer savings of up to 50% off today
For a limited time, enjoy huge Summer savings on our A-Rated windows, doors, conservatories & more.
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Flexible finance
Easy ways to pay
Total peace of mind
10 year guarantees
Make it your own
Hundreds of stylish options
A-Rated Installation
By our master installers
Zenith Home Improvements
Making Britain’s homes warmer, quieter & safer since 1963
Affordable, made to measure windows, doors & living spaces, perfectly designed and fitted to improve the comfort and value of your home.
Save up to 50%
Double Glazed Windows
Save on heating with A-rated windows that fit your home perfectly, leaving you feeling warm & cosy.
View moreSave up to 50%
UPVC & Composite Doors
A huge range of secure, energy-efficient doors to choose from, complete with Yale locking technology.
View stylesSave up to 25%
Conservatories
Extend your living space in style with a beautiful and cosy conservatory, to enjoy all year round.
View stylesSave up to 25%
Conservatory Roof Replacement
Upgrade your existing conservatory with a thermally efficient design that stays warm and looks great.
View moreBrowse our customer reviews
Join tens of thousands of happy customers
We take pride in our customer service. For us, there’s no better reward than hearing about some of the fantastic experiences our customers enjoyed.
First rate
We're in the process of renovating and have been visited by Zenith, who were highly professional and patient. We were very impressed and highly recommend considering them for your project.
Mr Hawthorne
Outstanding service
Zenith came by recently and gave me a really good price on the windows I was thinking of changing. They gave me a solid price compared to what I've heard my friends paid and left me with a really good impression. Outstanding service.
Mr Vornicu
Best price I've received
Zenith were really professional and offered me one of the best prices I've received for my renovation plans. The price offered was really fair - keep up the good work.
Ms Coleman
Polite and friendly
Zenith visited today to discuss a replacement patio door - as expected, they were polite and friendly. We've been through the whole process and I have placed an order. As a previous customer, I expect to be fully satisfied with the final installation.
Mr Sixsmith
Can't ask for more
I met the most polite sales person you could encounter. He walked me through the offer in a professional manner and got me a good deal versus what I found elsewhere. Excellent people skills and great value.
Ms Kovalski
Really good service
Having shopped around for quotes, everything we found on the market seemed overpriced and we almost gave up. Zenith visited and presented us with the best deal we'd came upon so far. Would happily recommend Zenith to my friends.
Ms Bratis
Secured by
Backed by Yale® locking and up to £3,000 Yale® Lifetime Security Guarantee.
We believe our customers should have total confidence in the power of our products to protect their homes, and the Yale Lifetime Security Guarantee reflects the faith we have in those products.
Explore our window rangeOur accreditations
For even greater peace of mind, we’re FENSA registered
FENSA is the largest and longest established certification scheme for replacement windows & doors. As a registered firm, our customers can enjoy total peace of mind with the knowledge that all work carried out by Zenith is fully compliant with building regulations.
FENSA Company Reg — 37248
Why Choose Zenith?
Industry-leading products, service and aftercare
Zenith has been at the forefront of the home improvements industry for decades, and our local teams are committed to providing the level of care, reliability and expertise you would expect from a national company.Great product warranties
All Zenith products are guaranteed as standard, alongside our comprehensive, hassle-free Carefree Agreement for total peace of mind.Fast & free installation
Installation is stress-free – our Master Installers take care to minimise dust and disruption before leaving your home as good as new.Flexible finance options
Great prices and a range of customisable finance options help ensure your home improvement is affordable without compromising on style or quality.
Get started today
Save up to 50% with a free, no-obligation quote from Zenith
Get your free quote todayOr, call us free on 0800 987 0024