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Your Trusted Source for Windows, Doors & Conservatories in Sittingbourne
Established over two decades ago, TPS Building Services has built a reputation as a trusted provider of premium windows, doors, conservatories, and roofline products. As a family-run business with a team boasting 150 years of combined industry expertise, we prioritise quality, innovation, and customer satisfaction. Our FENSA-registered status and 10-year insurance-backed guarantee underscore our commitment to excellence. Every project is completed with meticulous attention to detail, ensuring solutions that combine aesthetic appeal with long-term durability. Our engineers, employed directly by the company for at least a decade, deliver precision installations tailored to individual client needs. With full public and product liability insurance coverage, we provide peace of mind alongside our services.

Customer testimonials highlight our professionalism, reliability, and the transformative impact of our work on residential properties. From initial consultation to final installation, we maintain transparent communication and uphold the highest standards of craftsmanship. Our partnerships with leading manufacturers like Synseal and Solidor ensure access to cutting-edge products, while our colour-matching guarantees and extensive design options cater to diverse preferences. This combination of experience, expertise, and ethical practice has earned us hundreds of satisfied customers across Kent and surrounding areas.
Services
Windows Doors Conservatories Roofline Products Aluminium Systems
Highlights and features
  • Over 20 years of experience in double glazing industry
  • 150+ years combined expertise from directly employed engineers
  • 10-year insurance-backed guarantee on all installations
  • FENSA-registered company with full public liability coverage
  • Direct manufacturer partnerships ensure competitive pricing and quality assurance
Associations and certifications
  • FENSA
What people say
Fantastic job Polite professional team Amazing end result Hassle-free experience Excellent service
Services
Windows
Our A-rated UPVC and aluminium windows combine energy efficiency with modern design. Available in casement, tilt-and-turn, and vertical sliding sash styles, each installation enhances thermal performance while reducing external noise. All windows meet British standards for security and weather resistance.
Doors
From composite front doors to bi-folding patio systems, our doors offer security and style. Featuring PAS24-approved locking mechanisms and 940 billion customisation options, they combine police-approved security with aesthetic flexibility. Includes matching side panels and weather-resistant designs.
Conservatories
Custom-built conservatories create seamless transitions between indoor and outdoor spaces. Constructed with powder-coated aluminium frames and insulated roofs, they provide year-round usability. Available in multiple configurations with thermal performance certifications and 20-year colour guarantees.
Roofline Products
Durable UPVC fascias, soffits, and guttering systems protect properties while enhancing curb appeal. Designed for rapid installation with high-capacity drainage systems, they feature 20-year warranties and BBA-accredited materials. Includes ventilation solutions to prevent damp and rot.
Aluminium Systems
Slimline aluminium windows and doors offer contemporary aesthetics with thermal efficiency. Powder-coated to any RAL colour, these systems include heritage-style steel replicas and modern bi-folding options. Complies with BS EN standards for durability and security.
People
Stephen Hewitt
Managing Director
With over 20 years in the building industry, Stephen leads TPS with a focus on quality craftsmanship. He personally oversees installations to ensure standards match his own high expectations, prioritising customer satisfaction through transparent communication and ethical practices.
Questions
What areas do you serve?
We primarily serve Sittingbourne, Kent, and surrounding areas including Gillingham, with installations across the county.
Do you offer guarantees on installations?
Yes, we provide a 10-year insurance-backed guarantee on all window and door installations.
Are your engineers directly employed?
All our installation teams are directly employed with minimum 10 years' experience in double glazing.
Can you match existing roofline colours?
Our products come with a unique colour-match guarantee for seamless integration with existing property features.
Are you FENSA registered?
Yes, we are a FENSA-registered company providing homeowner protection compliance for all installations.
What insurance coverage do you have?
We carry £5m public liability and £10m employers' liability insurance with A-rated providers for complete client peace of mind.