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21 Years
experience
Trusted Home Builders in Folkestone | OnTime Windows
Established in 2005, OnTime Windows has built a reputation as Folkestone's leading double-glazing company, specialising in replacement windows, doors, and conservatories. Our team combines over 30 years of industry experience with a commitment to delivering high-quality products and exceptional service. As an authorised Rehau partner, we offer market-leading UPVC windows and composite doors, alongside aluminium bi-folding doors and conservatories. Our installations are completed within six weeks, backed by a 10-year guarantee, ensuring long-term reliability. We prioritise customer satisfaction through honest pricing, no-pressure consultations, and meticulous attention to detail during installation. With a focus on energy efficiency and security, our products are designed to enhance both the aesthetics and functionality of residential properties.

Our team's expertise extends to bespoke solutions, ensuring every project aligns with individual client needs. Regular partnerships with property management agencies and positive word-of-mouth referrals underscore our dedication to quality and service excellence. We maintain transparency in all dealings, from initial quotes to final installations, and operate a showroom for hands-on product exploration. Our certifications, including CERTASS and Rehau authorisation, reflect our adherence to industry standards. Customer testimonials consistently highlight our professionalism, timely delivery, and the transformative impact of our installations on homes.
Services
UPVC Windows Composite Doors Conservatories Aluminium Bi-Folding Doors Double Glazing
Details
  • Year established: 2005
Highlights and features
  • 10-year guarantee on all installations
  • Over 30 years of combined industry experience
  • Rehau-authorised installations with German engineering
  • Honest pricing with no-pressure consultations
  • Six-week installation timeline for all projects
Associations and certifications
  • Rehau
  • CERTASS
  • Planitherm Network
What people say
Excellent workmanship Highly recommend No pressure service Transformative results Meticulous attention to detail
Services
UPVC Windows
Our Rehau-certified UPVC windows combine German engineering with energy-efficient double glazing as standard. Designed for both modern and heritage properties, they offer enhanced security features and low-maintenance durability. A-rated for thermal performance, these windows reduce energy bills while maintaining aesthetic appeal through customisable designs.
Composite Doors
Endurance composite doors provide superior strength and insulation, available in traditional or contemporary styles. Backed by a 10-year guarantee, they feature multi-point locking systems and durable finishes resistant to warping or fading. Customisation options include glass panels, colours, and decorative hardware.
Conservatories
Transform your home with bespoke conservatories designed to maximise natural light and outdoor views. Constructed with thermally efficient materials, our conservatories include optional integral blinds and ventilation systems. Ideal for creating additional living space adaptable to various architectural styles.
Aluminium Bi-Folding Doors
Sleek aluminium bi-folding doors create seamless transitions between indoor and outdoor spaces. Featuring slim frames and weather-resistant seals, they offer panoramic views and easy access. Available in custom sizes and powder-coated finishes to match property aesthetics.
Double Glazing
A-rated double-glazed units enhance home comfort by reducing noise pollution and heat loss. Filled with argon gas and low-emissivity glass, our units meet building regulations while improving property value. Suitable for both new installations and replacements.
People
Matt Cooke
Team Lead
With over 15 years in double glazing, Matt oversees installations and client consultations, ensuring projects meet quality standards. His expertise in Rehau systems and customer-focused approach have earned multiple industry accolades.
Stephen
Surveyor
Stephen conducts property assessments and provides tailored design recommendations. His attention to detail during measurements ensures precise installations, contributing to the company's six-week project completion guarantee.
Cam
Installer
Recognised for meticulous workmanship, Cam specialises in door installations. His precision in fitting has resulted in zero post-installation touch-ups, as highlighted in multiple customer testimonials praising his professionalism.
Andy
Senior Fitter
Andy brings two decades of experience in window and door installations. Known for his tidy work ethic and problem-solving skills, he ensures minimal disruption during projects while maintaining high-quality finishes.
John Carr
Founder
Established OnTime Windows in 2005, John leverages 30+ years in the industry to guide business strategy. His vision focuses on combining traditional service values with modern product innovation for customer satisfaction.
Questions
What guarantees do you offer on installations?
All installations come with a 10-year guarantee covering both materials and workmanship, ensuring long-term reliability and customer peace of mind.
How long does the installation process take?
Most projects are completed within six weeks from initial consultation to final installation, with larger projects discussed on a case-by-case basis.
Are your products energy efficient?
All windows and doors are A-rated for energy efficiency as standard, featuring double-glazed units designed to reduce heat loss and energy bills.
Do you offer bespoke design options?
Yes, we provide customisable solutions for windows, doors, and conservatories, including colour choices, glass patterns, and hardware to suit individual preferences.
Are you certified by industry bodies?
We hold certifications from Rehau, CERTASS, and Planitherm Network, demonstrating our commitment to quality standards and professional installation practices.
Can you replace single windows or small sections?
We handle projects of all sizes, from single window replacements to full property installations, with no job considered too small.
Reviews (7)
Emily Catt
May 20, 2022 Report
We absolutely love our new french doors, I can't believe the difference it makes. OnTime Windows offered a great service, they managed to fit us in ahead of the approximate wait time, and did such a fantastic job with the installation, left no mess and took away the old door. They even fitted the cat flap for us which looks great and makes our life so much easier now. Communication was always great as well. Would certainly recommend and will use them again in the future
Emily Catt
May 11, 2022 Report
We absolutely love our new french doors, I can't believe the difference it makes. OnTime Windows offered a great service, they managed to fit us in ahead of the approximate wait time, and did such a fantastic job with the installation, left no mess and took away the old door. They even fitted the cat flap for us which looks great and makes our life so much easier now. Communication was always great as well. Would certainly recommend and will use them again in the future
Jake Sackett
Mar 31, 2022 Report
Great service great products and professional Fitters with a fabulous price. I can highly recommend Ontime windows for all your needs. Steve Harry and Buddy are great
Rob Coleman
Apr 16, 2021 Report
Matt Cooke and his team were superb from start to finish. Even throughout the pandemic, they kept us up to date as to when our new front door would be fitted. Brilliant workmanship, fantastic finish and the fitter left the house extremely clean & tidy once the job was done. 100 % would use them again and will recommend them to others.
Greg P.
Apr 09, 2021 Report
Excellent workmanship, reliable and really good quality products. We had 4 sets of french doors installed. 100% recommended.
Alison Lynd
Feb 22, 2020 Report
I had a handle break and couldn't shut the window, the team from ontime came out the same day with a temporary fix and the following day fixed it properly, very impressed for the second time. Thanks guys.
Marion Pestana
Nov 03, 2019 Report
I bought my French doors almost ten years ago from On Time and they still came out and fixed some minor issues that we were having. Thanks for the continued great service!