Flagship guide · 9 min read
The Ultimate Guide to Aluminium Windows
Everything worth knowing before specifying aluminium windows, from frame construction and thermal performance to colour, glass and realistic pricing.
Design Studio · Knowledge Centre
Everything worth knowing before you glaze.
Not a blog. A permanent library of considered homeowner guides — written by people who survey, specify and install glazing every week in one of the most demanding climates in England.
Why this exists
Good glazing decisions are made slowly.
Most glazing information online is written to sell a product this month. These guides are written to still be true in ten years — how the systems work, what they genuinely cost, where they fail, and how a specification should read before you sign anything.
Everything here comes from work carried out on real Cumbrian houses: stone farmhouses, barn conversions, lakeside new builds and conservation-area cottages, in weather that finds every shortcut.
The library
Nine areas of advice
Buying Guides
Everything a homeowner should know before purchasing.
10 guides
Cost & Budget Guides
Realistic investment guidance, written plainly.
8 guides
Product Comparisons
Two good options, side by side.
12 guides
Glass Advice
Specifying the pane, not just the frame.
12 guides
Colours & Finishes
Choosing a colour you will still like in twenty years.
8 guides
Design Inspiration
Ideas grounded in real Cumbrian buildings.
11 guides
Planning & Regulations
Permission, conservation, listed buildings and Building Regulations.
15 guides
Technical Advice
The numbers behind a good window.
11 guides
Installation
What actually happens, week by week.
11 guides
Start here
The flagship guides
Long-form, definitive and regularly revised. If you read nothing else, read the one that matches your project.
Flagship guide · 9 min read
The Ultimate Guide to Sliding Doors
How aluminium sliding doors work, what separates a good system from a poor one, and what to expect from specification through to installed cost.
Flagship guide · 6 min read
The Ultimate Guide to Residence Windows
What the Residence Collection actually is, how R9, R7 and R2 differ, and why timber-look uPVC has become the standard choice for period and conservation properties.
Flagship guide · 6 min read
The Best Windows for a Barn Conversion
A barn conversion is not a window replacement job. It is a small number of large, unrepeatable glazing decisions, and the material and detailing you choose will define how the finished building reads.
Flagship guide · 6 min read
Choosing Windows for a Lake District Property
Lake District houses ask more of their glazing than most. This is how we specify windows and doors for stone cottages, farmhouses, renovations, extensions and contemporary homes across Cumbria.
Flagship guide · 9 min read
What Affects the Cost of Premium Glazing
Two homes with the same number of windows can end up on very different invoices. Here is what genuinely moves the price, and what does not.
Planning & conservation
Listed, in a conservation area, or inside the National Park?
The Planning & Conservation Centre brings the relevant guidance together and includes a checker that shows what is worth establishing before you order.
Quick answers
A searchable library of the questions we are asked most.
Design Studio
Continue in the Design Studio
Begin
Read enough. Let’s look at your house.
Bring what you have — drawings, photographs, a saved collection of ideas — and we will tell you plainly what is possible and what it should cost.