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High Performance Flush Casement Windows

Our High-Performance Flush Fitting window is our most popular product. Developed to offer the highest quality and performance whilst remaining a competitively priced choice. The flush appearance lends itself equally to both modern and traditional installations.

Flush Casement Windows: Products
Flush Casement Windows: Image


  • Made from Engineered Timber for improved performance and stability

  • 83mm x 68mm Frame Section

  • Part-Q Compliant (Optional)

  • Mega Egress & Easy Clean Hinge can carry 40kg Opener

  • Concealed Trickle Vent

  • Multi-Point Espagnolette Locking System

  • 3 coat paint finish

  • 24mm Double glazed unit

  • Double Weatherseal to provide maximum thermal insulation

  • U-Value – 1.3W/m2k A

Flush Casement Windows: Text

Timber Options

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Engineered Redwood

Engineered Redwood is assembled using layers of clear Timber finger jointed and tri-laminated to produce a stronger, more stable and knot free product. Engineered Timbers experiences less seasonal movement than solid natural timber. Expansion and contraction, due to moisture contraction is thus reduced. Our Engineered Laminated Redwood comes with a 30 year guarantee protecting against rot and fungal infection.



Accoya® has properties that match or exceed those of the best tropical hardwoods yet is produced using a fast-growing suistainable treated softwood. Accoya® is naturally insulating and one of the most durable commercially available timbers. Due to the acylation process Accoya® will reduce any seasonal movement to a minimum.  All of our Accoya® products come with a 50-year guarantee against rot and fungal infection.

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Red Grandis

Red Grandis is a high performing South American Hardwood that is ethically sourced. Red Grandis is a high grade, knot-free, durable and versatile timber that can be painted or stained to the customers desire.

Flush Casement Windows: Features

Handle Options



Available in Satin Chrome, Polished Chrome, Polished Gold, Black & White.



Available in Satin Chrome, Polished Chrome, Polished Gold & White.


Tear Drop

Available in Black, Mottled Grey, Polished Gold, Polished Chrome, Satin Chrome & Smokey Chrome.


Monkey Tail

Available in Antique Black only.

Speak to our Sales Team for any other furniture requirements.

Flush Casement Windows: Products

Finishing Options

Douglas & Peters utilise a water-based application system which allows the timber to ‘breathe’ and adapt to its natural surroundings. The water-based finish means we reduce harmful emissions and disposal issues unlike solvent based systems.

Teaming up with Symphony Coatings / Sikkens (Akzo Nobel) we can match any RAL, British Standard, Dulux and F&B shades, to give the customer an endless choice.
We also have a range of translucent and opaque stain finishes available as well as dual-colour option (Internal / External different finish).

Flush Casement Windows: Text


  • Double Glazed to meet latest stringent industry standards

  • Standard Units: 4-16-4 construction (Black Warm Edge) Spacer Bar, Low-E, Argon Filled. 

  • Silicone backfilled on all sides

  • Options available, Part-Q, Toughened, Laminated, Integral Duplex Bar. 

Flush Casement Windows: Image
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