Heritage Putty Line Windows

The Heritage Putty-Line window has been designed and as a direct replacement for old putty glazed steel windows with the benefit of a thermally broken frame, enhanced security and. Replicating the authentic look of putty line steel windows with 45° angled design and slim sight-lines. Our putty-line windows maintain the character of your home whilst achieving improved thermal and weather performance.

Our Heritage Putty-Line windows offer a huge improvement over steel in terms of thermal performance corrosion resistance and security. Our heritage range are fitted friendly, offer great U values and include the latest in glazing technology.



  • Authentic replacement window for original putty glazed steel windows.
  • Reduced cost compared with steel windows.
  • Thermally broken aluminium frames for added thermal efficiency.
  • Low maintenance, corrosion resistant frames.
  • Multi-point locking combined with traditional door furniture.
  • Various glazing options to match different styled windows.
  • Has been used in conservation, heritage areas and period properties.
  • Can be installed into brick or existing timber sub-frames.

Glass Options

Standard clear glazing

Planitherm Total +, argon filled double glazing with a warm edge spacer. Centre pane U-value of 1.2 W/M2k.

Square Leaded

Traditional lead lights also known as lead lites combine small pieces of glass with lead detailing to create decorative panels.

Diamond Leaded

Manufactures in the same way as our square leaded glazing, our diamond leaded glass option give achieves a different look to the squre leads.

Horizontal Flat Astragal Bars

Our horizontal bars are designed to replicate traditional Georgian bars popular on 1930's art deco styled steel windows.

Overlapped Astragal Bars

Designed to replicate traditional Georgian bars, the vertical bars overlap the horizontal bars, and are fixed to the outside of the glass for an authentic look.

Butted Astragal Bars

Similar in design to our overlapped astragal bars, out butted astragal bars are meet in a cross to give a flush look.

Self Cleaning Glass

True self cleaning glass manufactured with a dual action coating. The dual action coating users UV rays to break down dirt and then utilises rain to wash it away.

Textured / Obscure Glass

Pilkintons textured and obscured glass available in a wide range of patterns.

Colour Options

Standard White
(KL9010 Gloss)

Standard Black
(KL9005 Matt)

Standard Brown
(KL8014 Matt)

RAL Example - Red
(RAL 3011 Matt)

All of our aluminium windows are polyester powder coated for a hard wearing low maintenance finished, complete with a 10 year guarantee.

Our Heritage windows are available in three standard colours including white, black and brown as weel as dual colour options. Our windows are also available in a single or dual colour RAL colour options giving you hudereds of options. We also can supply a silver annodised finish and some Hammerite style textured paint finishes.

Hardware Options

Art Deco Handle

Slimline Handle

Monkey Tail Handle

Dummy butt hinge

Dummy Parliament Hinges

Ironmongery Monkey Tail Handle

Ironmongery Monkey Tail Peg & Stay

Working Butt Hinge