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Search 10+ Internal Window Sills from leading Window Components manufacturers including; Kestrel-BCE

You can see a full list of manufacturers of Internal Window Sills here.

Other popular types of Window Components include; Window Subframes, Window Trickle Ventilators and Sash Stops.

Important criteria to consider when specifying Internal Window Sills include; Colour, Length and Length.

Ogee Architraves 70 x 18mm

Kestrel-BCE
Engineered and finished to perfection, Kestrel's 70mm x 18mm ogee architrave is now available in 5.3m lengths and in brilliant white, mahogany, sherwood and rosewood....

Ogee Architraves 125 x 18mm

Kestrel-BCE
Another popular addition to the Kestrel Extra range, the larger Ogee architrave, the 125mm x 18mm represents great value and is available in brilliant white, mahogany, sherwood and rosewood foils....

100mm x 80mm Angle

Kestrel-BCE
Adopted by the UK market from France, Kestrel's rigid angles are available in a range of sizes 100mm x80mm....

Window Finishing Trims Quadrant Clip - 22 x 16mm

Kestrel-BCE
The 22mm x 16mm quadrant clips come in 25 x 5 meter lengths and are available in brilliant white. ...

Flat Back - Architraves 45 x 7.5mm

Kestrel-BCE
A best seller in Essex, the 45mm x 7.5mm flat back architraves are available in standard, brilliant and dove white as well as mahogany, sherwood and rosewood....

80mm x 7mm Ridge-Architraves-Back Pencil Round

Kestrel-BCE
Now available in brilliant white and standard white, mahogany, sherwood and rosewood the 80mm x 7mm ridge back pencil round complements the architrave range....

Flat Back - Architraves 45 x 5.5mm

Kestrel-BCE
Our 5.5.mm flatback architraves are available in all three whites and woodgrain finishes and new premiergrain anthracite grey....

25mm x 8mm Ridge Backed Fillet

Kestrel-BCE
Kestrel's 25mm x 8mm ridge backed fillet is available in brilliant and standard....

Window Finishing Trims 18mm Quadrant

Kestrel-BCE
Completing the Quadrant range, the 18mm is now available in our three Kestrel whites, the entire range of woodgrains and our NEW premiergrain whitegrain, creamgrain & irish oak foiled colours....

Window Finishing Trims 8mm x 6mm Edge Fillet

Kestrel-BCE
Due to market demand to match new window styles, the 28mm x 6mm Edge fillet is now available in NEW premiergrain irish oak, whitegrain, creamgrain and anthracite grey, the entire range of woodgrains and the three Kestrel whites....
Thnking face emoji
Did you know that the most common Colour(s) for products within the Internal Window Sills category are White , Irish Oak and mahogany?'

704 Hockey Window - Fascia Capping Boards 150 x 9mm

Kestrel-BCE
The 150mm x 9mm interior hockey window fascia capping boards are tough, strong and look good....

Window Finishing Trims 12mm Quadrant

Kestrel-BCE
The 12mm Quadrant window finishing trim is available in all three Kestrel whites, mahogany, blackgrain, sherwood and rosewood woodgrains alongside our NEW Premiergrain whitegrain and creamgrain colours....

704 Hockey Window - Fascia Capping Boards 300 x 9mm

Kestrel-BCE
Unique to Kestrel, the 300mm x 9mm hockey window fascia capping board is now available in our latest premiergrain Irish Oak and Whitegrain options....

704 Hockey Window - Fascia Capping Boards 250 x 9mm

Kestrel-BCE
We've added sherwood to our 250mm x 9mm capping board range Sold in packs of 2 x 5m....