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Key Stones

Key Stones

Key Stones

Custom Profiles Quoins & Keystones add charactor to the exterior of any home.They are the perfect architectural detail that will give your home a truly unique look and make your home stand out.

Quions are a decorative feature providing variety and pattern to the corner where two exterior walls meet. they can be tacked or installed separately and spread out.

Keystones are a great feature that accents window and door trims and are available in two styles. 

All our mouldings have a impact resistant hard base coat which contains a fire retardent chemicals to increase its fire resistance to class 1 BS 476 part 7

Key Stones Variations Coming Soon
Reasons to Choose Custom Profiles

We offer the following, EPS Profiles, insulated aluminium cills, EWI systems (supply and install) and a brick slip system. All our service are availible to both small and large projects. Please contact us for further details.

  • Design Flexibility
  • Custom Design
  • Profile Matching
  • Retro Fit
  • Wide Range Of Finishes
  • Cost Effective
  • Quick Turnaround
  • Easily Installed
  • Low Maintenance
  • Strong/ Flexible
  • Stylish
  • Energy Efficient
Installation Guidelines

Simple to install its lightweight easy to cut smoothly with a handsaw

Tools required

Miter Box and a handsaw rasp or sanding block 150 Grit sanding Paper


When ordering your material allow 10% extra to accommodate offcuts and corners

Layout and cut profiles

If you are working with walls that are out of level and plumb sometimes its best to allow your eye rather than a level to guide the position of the profiles. For best results get the profiles looking parallel with any neighbouring profile. always install working from corner to corner. Once you have your line start installing the straight sections and if a profiles need to be cut you can either have a single cut at one end or make two equal cuts at each corner

Cutting External & Internal corners

To cut a profile at an angle for an internal or external corner place it in a miter block as if its against the wall most mitrers will be at 45 Deg making a 90 Deg corner when joining the corner use a bonding agent clean off joints with a sanding block. All butt joints to be cleaned once gone off. If you have used any fixings to secure the profiles fill holes to hide and rub down with a sanding block.

Great Service!!!

Excellent Product and Excellent Service

- John Smith, Surrey
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Transformed my home!

The products from Custom Profiles transformed my home


- Danny Revel, West Midlands
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Million dollar home.

With our new external entrance porch, collums and window surrounds our house was transformed.

- Stephen Williams, Dudley
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Jealous neighbours!

We had new window sills and surrounds installed by Custom Profiles and now we are the envy of the neighbourhood!

- Jenny Carter
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Contact Us About Key Stones

If you require any help, advice or maybe a free quotation please fill in our contact form below and we will get back to you promptly. Alternatively, why not call us on 02039 044795 and a member of our friendly and experienced team.