Monthly Experience Prize Draw! - How to play

Christmas Closure: We close at 3pm on Thursday 21st December and re-open Tuesday 2nd January at 8am.

FinanceIcon for finance

0% Deposit and Finance

GuaranteeIcon for guarantee

10 Year Guarantee

subject to terms and conditions
Uk-madeIcon for uk-made

Made in the UK

ReviewsIcon for reviews

1000+ Checkatrade Reviews

Every window and door we supply has security at the heart and by choosing Three Counties you can feel secure in the knowledge that you are installing the very best when it comes to window and door security. We offer Yale security locks and multi-point locking systems as standard.

Three Counties - Security

Total peace of mind for your family and your home

We don’t just meet with industry standards when it comes to security, we also work closely with the police with their ‘Secured by Design’ scheme – this is an enhanced security scheme that means we offer the best possible protection to you.

Three Counties - Security Safety

Window security

We understand that when you are choosing new windows for your home, security will be an important factor. At Three Counties all of our windows feature an eight point locking system and a unique Eurogroove lock-out design to maximise security. Our shoot bolts also have a 400% increased contact area compared to traditional shoot bolts to make them even more secure. All of our windows and window locks are rigorously tested to BS7950 and beyond so they reach the police preferred ‘Secured by Design’ status.

Three Counties - Security Benefits

Door security

When choosing a front door we know that security is one of the key features you will be looking for and modern front doors offer a significantly improved level of security and can help keep intruders out of your home. When you lock your front door at night or when you leave the house, we want you to feel safe and secure and our doors can do this. Each of our doors offers a ten point locking system and three oppositing steel hooks to maximise strength. Two anti-lift bolts also prevent the door lock from being dislodged from keeps. Our doors also include a one centre latch for ease of day to day operation and include a deadlock for added protection and we used Yale industry leading locking systems.

Paul Wallis
Paul Wallis
We recently decided to replace our front door, and could not be happier with the result! Thanks so much to Kate, for her time and understanding. Cannot say enough good things about the installation, and Cameron was tidy and efficient. It's been a pleasure to work with Three Counties recently, doors and windows. Many thanks!
Danielle Horsley
Danielle Horsley
Lovely looking door
Agatha W
Agatha W
Three Counties have been superb, their customer service is great and their workman were polite, cleaned up after themselves and the workmanship is excellent!! I am very pleased with their work and would happily recommend them.
Tom Winter
Tom Winter
Excellent service!! We had 21 windows and 3 doors installed and very happy with it all. The process from start to finish was stress free and Ron and Lee who installed the windows and doors were great. Would definitely recommend!
Phil Redhead
Phil Redhead
Just had my tatty old windows replaced by Three Counties, and it’s been a highly professional job from start to finish. Communication from the administration team was prompt and courteous at all times, and installation ended up being much quicker than advertised projections. Installation was without issue and the lads who did the work were amenable to my requirements and did an excellent job. Very happy with the entire process. Three Counties were recommended to me by friends and I can certainly now recommend them to others.
Mark Boyce
Mark Boyce
Bought two new windows and a new front door from Three Counties, was very impressed with the attitude of all staff, who were friendly and informative. Price was good, and installation completed without a hitch - very happy with the final product, and would definitely use again.
Paul Picknett
Paul Picknett
We have just had all our windows (18) replaced, french doors (20 and side panels (2) by Three Counties. We could not be more pleased with their workmanship and the finished product. They left the property incredibly clean after each day, and this despite the messy nature of ripping out old windows and frames. We were kept informed at each stage and a minor snagging issue was resolved promptly and efficiently after installation. A first class service. We would not hesitate to recommend Three Counties.
Anna Trevelyan
Anna Trevelyan
Three Counties have now installed several windows and doors on our house and they're always my go-to company. I used another before I discovered them and they let me down, but I absolutely cannot fault Three Counties. From the moment you contact them they're courteous and professional, and they keep in touch with timescales and installation times. Friendly installers too, who go above and beyond. You'd think all this great service would cost more but they beat other companies on price. Highly recommended and trusted, I'd never go anywhere else now.