Rockdoor

We are proud to be a Rockdoor Trust Installer

Our ‘A++’ rated bespoke PVCu windows will transform the look, security and energy efficiency of your home.

Our ‘A’ rated bespoke aluminium windows will transform the look, security and energy efficiency of your home.

Our ‘A+’ rated bespoke Flush casement and Sliding Sash windows will truly transform the look, security.

Rockdoor Composite Doors

Premium Security • Exceptional Strength • Outstanding Efficiency

At Silvertree Windows & Doors, we proudly supply and install Rockdoor, one of the UK’s most secure and energy‑efficient composite doors. Known for exceptional strength, advanced security features and long‑lasting performance, Rockdoor is the ideal choice for homeowners who want premium protection without compromising on style.

Key Features

  • Aluminium‑Reinforced Inner Frame for exceptional strength and stability
  • Multi‑Point Locking System with heavy‑duty steel hooks
  • Anti‑Snap, Anti‑Bump Cylinders for advanced protection
  • S‑Glaze Technology bonding the glass directly into the door
  • Made‑to‑Measure Manufacturing — every door is built to size, not cut down
  • Wide Range of Styles & Colours — Choose from modern, traditional and cottage‑style designs, all available in a variety of colours and glazing options to suit any property.

Our Services

We don’t just offer Windows and doors within Dunmow. Our services cover Essex, Hertfordshire and surrounding areas.

Conservatories

PVC or Aluminium Conservatories in Essex, from Silvertree Windows & Doors

Facia, Soffits & Cladding

Facia, Soffits & Cladding in Essex, from Silvertree Windows & Doors

Porches

PVC Porches in Essex, from Silvertree Windows & Doors

Bi-Fold Doors

Aluminium Bifold doors in Essex, from Silvertree Windows & Doors

Get in touch today

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“Communications throughout was excellent”

Work completed to an excellent standard, Bay window looks amazing and really transforms the house. Advice and suggestions were also really good and helped guide our decision making, door design software was really good fun and the chaps who came to fit the windows and do the plastering were all really nice blokes. Would heartily recommend Silvertree after having pretty bad experiences with another local fitter and national services.

Verified Checkatrade Reviewer