Double Glazing Installation in an Existing Dormer

Double glazing existing wooden sash windows can improve energy efficiency while retaining historic charm. This project involved installing slim-profile double-glazed units in an existing dormer, improving insulation and comfort without compromising aesthetics.

The Challenge

  • Single-glazed wooden sash windows causing heat loss
  • Limited space in dormer for retrofitting
  • Maintaining the original wooden frames and style
  • Ensuring airtight seals while preserving appearance
Dormer Sash Windows Scaffolding

What Our Customers Say

The Solution

  1. Survey & Planning: Measured existing sashes and dormer constraints to select suitable double-glazed units.
  2. Installation: Carefully fitted slim double-glazed panes within original wooden frames.
  3. Preservation: Maintained all visual elements and timber details to retain period authenticity.
  4. Draught Proofing: Added discreet sealing to maximise energy efficiency without altering the original look.

Outcome

  • Fully double-glazed sash windows without altering the historic appearance
  • Improved thermal efficiency and comfort
  • Smooth, functional sash operation
  • Enhanced longevity of original timber frames

Work carried out during our double glazing installation

Finished Dormer Windows
New Dormer Windows Shut
Finish Look of New Dormer Windows
Ripped out Old Dormer Window
Single Glazed Dormer Windows
Dormer Windows Chipped and Broken
Dormer Windows Before Work

★★★★★
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Arrange a No-Obligation Survey With Mark

Hi, I’m Mark, owner of Sash Window Experts. I’d love to talk to you about restoring period windows. Please fill out the form or call me on 01403 602701 to arrange your FREE no obligation window survey and to discuss your requirements.