FENSA-Registered Window & Door Installations in Southeast England

Certified FENSA-Registered Window & Door Installation & Repair in Southeast England

Our commitment to you

At Instant Windows & Doors, we do not look to sell you the most expensive products.

We pride ourselves on giving valuable advice that helps you make the best and most informed decisions based on your budget and personal needs. Our service is available to residential and commercial property owners across Southeast England.

Whether you want to upgrade your windows at home or install a stylish new set of bi-fold doors at your office, our certified FENSA-registered team will guide you every step of the way. With over 50 years of expertise behind us, we guarantee a prompt and hassle-free installation.

To top it off, we’ll leave your property looking spick and span; we even tidy up to a 5-star standard!
At Instant Windows & Doors, we do not look to sell you the most expensive products.

Meet the faces behind the brand

Meet Martin - Director
Meet Martin - Director

Martin Dimmock is one of two directors at Instant Windows & Doors. He has over 28 years of industry experience, making him the perfect point-of-contact for receiving valuable knowledge and guidance that caters to your needs and budget. In Martin’s words:

“We provide you with everything you need to make an informed decision and tailor our service according to your personal needs and preferences. Our mission is to make the whole process simple and deliver a world-class service you can rely on”.
Meet David - Director

David Ford is also a director at Instant Windows & Doors. He has over 15 years of industry expertise and works with Martin to ensure the smooth running and development of the business. In his words:

“Our forward-thinking approach ensures we stay up to date with all the latest window and door products, trends and technologies shaping the UK industry. You can always depend on us for the latest, most recent information and news”.
Meet David - Director
Meet Thomas - Head Fitter
Meet Thomas - Head Fitter

Thomas Thompson is the head fitter at Instant Windows & Doors. Trained by Martin and with over 5 years of experience in planning and fitting window and door installations for homes and commercial premises across Southeast England, Thomas holds a strong reputation for his quality of service and attention to detail. Thomas says:

“Improving people’s homes and businesses is extremely rewarding. Positive client feedback and the level of repeat custom we receive make all the hard work worthwhile. You’ve got to love what you do to do it well!”.
Meet Billy Window/Door Fitter

Billy Smith is our main window and door fitter at Instant Windows & Doors. His drive and willingness to go the extra mile and deliver flawless results make him an asset to the team.

“Working as part of this team has shown me how to offer the highest quality service to our clients. Every day brings a new lesson and presents a new perspective; the training I have received and continue to receive is invaluable”.
Meet Billy Window/Door Fitter

A few good reasons why we
love what we do:

Peace of mind

The products we install bring peace of mind to our clients. Your safety and the security of your property are of the utmost importance to us. All our doors and windows are installed with British industry-standard locks and locking systems and have been proven to effectively deter potential intruders and opportunists from breaking in. Rest in the knowledge that your loved ones and assets are safe.

Saving Energy

Energy-efficient homes are the future; don’t get left behind. Due to the advanced technology making up our high-performance double-glazed window and door ranges, home and business owners are saving a small fortune in monthly energy bills. Reduce heat loss by over 70% in the winter months and maintain a cooler interior during the summer with our energy-efficient window and door solutions. We also provide slim aluminium frames and bi-fold/sliding doors to enhance natural light flow throughout the year, meaning you get to enjoy a brighter home or workplace for longer. Save money in the long run.

Lifestyle Choice

Our high-performance windows and doors not only look beautiful, enhancing the interior and exterior design of your property, but add a quality feel to your home or commercial building. Eliminate the need for regular maintenance, cold drafts and squeaky hinges, and enjoy high-quality, high-performing, robust doors and windows designed to last!

Loyal Client Base

Customer loyalty means everything to us; when a client/customer continues to use our services for all their window and door installations and repairs, we know we are delivering quality. The continuous positive feedback we receive makes everything we do worthwhile. We are committed to providing a knowledgeable, reliable, and highly trusted service throughout Southeast England.

Installations & repairs across Southeast England

Window Services

uPVC Windows: Install & Repair *Available in any colour, shape and size!



Aluminium Windows: Install & Repair

Door Services

uPVC Doors: Install & Repair

Aluminium Doors: Install & Repair

Composite Doors: Install & Repair

Bi-Fold Doors: Install & Repair

Sliding Doors: Install & Repair

French Doors: Install & Repair

Home Improvements

Conservtories: Install & Repair

Conservatory Roof Replacements

Porches: Install & Repair

Door Canopies: Install & Repair

Flat Roof Lights: Install & Repair

Roof Lanterns: Install & Repair

WHY CHOOSE INSTANT WINDOWS & DOORS?
Fensa-Registered
High-Security
Insurance-Backed Guarantee

Fensa-Registered

Our reliable and certified team is FENSA-registered. For those who don't know, FENSA stands for Fenestration Self-Assessment and is a government-authorised scheme that monitors building regulation compliance for replacement windows and doors. In friendly terms, a FENSA certificate assures you that the window/door installer who fitted your windows/doors has complied with Building Regulations and registered the installation(s) with the Local Council; both are legal requirements! If you ever decide to sell your home or business premises, proof of them is essential.

High-Security

Windows and doors provide the ultimate gateway for opportunist thieves to enter a property; don't make yourself a target with rickety frames and weak security locks. Upgrade your windows and doors or request repairs to ensure they are functioning at their best. Our double-glazed windows and robust doors add an extra layer of security to your home or workplace with top-notch British-standard locking systems that effectively deter opportunists from breaking in. We deliver peace of mind to home and business owners across Southeast England. Sleep at night knowing your loved ones and assets are safe!

Insurance-Backed Guarantee

At Instant Windows & Doors, we use the best energy-rated systems available on the market and include a 10- year insurance-backed guarantee with every window and door installation. It is also worth mentioning that our windows and doors are backed by the Home Improvement Protection Scheme for your safety and investment security.

At Instant Windows, your
feedback is noted
and appreciated.

Our skilled, insured, licensed, and certified
installation professionals offer seamless
window and door installations for both
residential and commercial properties.

Contact us to discuss your project

Competitively priced windows and doors in Southeast England.

At Instant Windows & Doors, we assure you of a dependable and trustworthy window and door installation and repair service available throughout Southeast England. Schedule one of our local, certified installers in your vicinity, and enjoy a prompt response without any call-out fees and swift service turnaround.

We are dedicated to prioritising our clients and ensuring the provision of expert window and door installation and repair services tailored to your specific requirements.
We are proud to work with the following companies
View Our Flexible Finance Options
Instant Windows and Doors covers the following areas
Check out the areas we work in ➔ ✅ Hampshire ✅ West Sussex ✅ East Sussex ✅ Sutton ✅ Bromley ✅ Croydon ✅ Berkshire ✅ Surrey ✅ Parts of Kent ✅ Parts of Greater London
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