Read before you book
Skylight and rooflight guides
Longer reads for when you want to understand a product, a rule or a decision properly before you book a survey.
Start here
How Much Does a Skylight Cost to Fit in York?
What moves the price of a skylight job in York, and how to read a written quote line by line.
Skylight Planning Permission and Building Regulations
When a skylight needs planning permission, when it needs Building Regulations approval, and who confirms each.
Replacing an Old Skylight: What the Job Involves
What happens when an old skylight is taken out and a new one goes in, from the survey to the finished reveal.
Roof Lantern Cost: What Sets the Price
The parts of a roof lantern job that decide the price, and how to read a quote line by line.
Flat Rooflight Cost: A Plain Breakdown
A plain breakdown of what makes up the cost of a flat rooflight, and how to read a quote so each line makes sense.
Roof Window Cost: What You Pay For
The parts of a roof window job that decide what you pay, and how to read a written quote line by line.
Planning, cost and choosing
How Much Does a Skylight Cost to Fit in York?
What moves the price of a skylight job in York, and how to read a written quote line by line.
Skylight Planning Permission and Building Regulations
When a skylight needs planning permission, when it needs Building Regulations approval, and who confirms each.
Replacing an Old Skylight: What the Job Involves
What happens when an old skylight is taken out and a new one goes in, from the survey to the finished reveal.
Types of Rooflight and Which Roof Each Suits
A plain guide to the main kinds of rooflight and the roof, room and house each is best matched to.
Roof Lanterns
Roof Lantern Cost: What Sets the Price
The parts of a roof lantern job that decide the price, and how to read a quote line by line.
Roof Lantern Sizes and How to Choose One
How to choose a roof lantern size from the room, the structure underneath and the look from the garden.
Aluminium or uPVC Roof Lantern?
A plain comparison of aluminium and uPVC roof lantern frames, and when each is the better choice.
The Roof Lantern Upstand Explained
What a roof lantern upstand is, how tall it should be, how it is built and why a poor one spoils a good lantern.
Flat Roof Rooflights
Flat Rooflight Cost: A Plain Breakdown
A plain breakdown of what makes up the cost of a flat rooflight, and how to read a quote so each line makes sense.
Flat Rooflight Sizes: Getting the Opening Right
How to choose a flat rooflight size, and why the opening in the roof is a different measurement from the glass you see.
Flat Rooflight Glazing Options
The glazing choices for a flat rooflight, what each one changes in the room, and how to pick between them.
Adding a Rooflight to an Existing Flat Roof
The order of work for cutting a new rooflight into a flat roof that is already built, and what decides whether it is sensible.
Roof Windows
Roof Window Cost: What You Pay For
The parts of a roof window job that decide what you pay, and how to read a written quote line by line.
Roof Windows for Loft Conversions
How to choose, place and size roof windows for a loft room, and the rules that apply to a conversion.
Top-Hung or Centre-Pivot Roof Window?
A plain comparison of top-hung and centre-pivot roof windows and the rooms each suits.
Roof Window Flashings for Slate, Tile and Pantile
How roof window flashings work on slate, tile and pantile roofs, and why the roof covering decides the kit.
VELUX Windows
VELUX Window Cost, Fitted
The parts of a VELUX fit that move the price, from the window code to the plastering, and how to compare quotes line by line.
VELUX Window Sizes and Codes Explained
A plain explanation of VELUX size codes, the common sizes, and how rafter spacing and room use should guide the choice.
VELUX Blinds and Accessories Worth Having
A practical look at blinds, controls and extras for roof windows, and which are worth deciding before the window goes in.
Replacing an Old VELUX Window
How a like-for-like replacement of a roof window runs, from the old data plate to the new flashing and the paperwork.
Electric & Opening Rooflights
Electric Rooflight Cost
The parts of an electric rooflight job that move the price, and what to ask when you compare quotes.
Opening Rooflights for Ventilation
How an opening rooflight clears warm and damp air, and where it makes the most difference in a house.
Rain Sensors and Controls for Rooflights
How a rain sensor shuts an electric rooflight, and the control choices that sit around it.
Hinged or Sliding Rooflight?
How hinged and sliding rooflights differ, and which one suits which roof and room.
Energy Efficient Rooflights
Rooflight U-Values Explained
What a rooflight U-value measures, which limits apply to an existing home, and how to read the figure on a data sheet.
Double or Triple Glazed Rooflight?
How double and triple glazed rooflights differ, and how to decide which suits a given room.
Condensation on Rooflights: Causes and Cures
The three places condensation can appear on a rooflight, what causes each and what actually stops it.
Solar Control Glass for Rooflights
What solar control glass is, how it differs from ordinary low-E, and where it is worth specifying on a rooflight.
Misted Rooflight Replacement
What It Costs to Sort a Misted Rooflight
The parts of a misted rooflight job that move the cost, from the glass to access, and how to read the quote for it.
New Sealed Unit or a Whole New Rooflight?
How the frame, the upstand and the age of a rooflight decide between replacing just the glass and fitting a whole new rooflight.
Signs a Rooflight Has Failed
The signs that a rooflight's glass or frame has failed, how to tell them from dirt and condensation, and when to book a survey.
Replacing a Polycarbonate Rooflight With Glass
Why old plastic rooflights are better replaced than reglazed, how the kerb is dealt with, and what the swap involves from survey to handover.
Walk-On Rooflights
Walk-On Rooflight Cost
The parts of a walk-on glass job that decide what it costs, and how a quote for one is laid out, line by line.
Walk-On Glass Loading Explained
How the weight a piece of walk-on glass can carry is described, tested and matched to the way you will use it.
Walk-On Rooflights for Roof Terraces
How walk-on glass works in a roof terrace over a bathroom, study or utility room, and what to settle before it is fitted.
Walk-On Rooflights for Basements and Light Wells
How walk-on glass brings daylight to a basement, cellar or lower-ground room through a light well or courtyard above.
Conservation Rooflights
Conservation Rooflight Cost
The parts of a conservation rooflight job that move the price, and how to read a quote for one line by line.
Rooflights in Conservation Areas
How conservation area status affects a rooflight: what still applies, what an Article 4 direction changes and how to find out.
Rooflights for Listed Buildings
How rooflights work on a listed building: consent, what officers look at and how to prepare before you apply.
Steel or Aluminium Conservation Rooflight?
A plain comparison of steel and aluminium conservation rooflight frames: appearance, ageing, thermal performance, weight and price.
Sun Tunnels
Sun Tunnel Cost, Fitted
What decides the fitted price of a sun tunnel, line by line, and how to compare two quotes fairly.
Sun Tunnel or Roof Window?
How to choose between a sun tunnel and a roof window for a room that needs daylight.
Rigid or Flexible Sun Tunnel?
How to choose between a rigid and a flexible tube for a sun tunnel, and what each does to the light.
Sun Tunnels for Bathrooms and Hallways
What to think about when a sun tunnel is going into a bathroom, a landing or a hallway.
These guides are written for homeowners, not the trade. Each one takes a single subject, such as choosing glazing, planning permission or what happens on the day, and explains it in plain English, with the rules stated as they actually are.
If you have a quick question rather than time for a long read, our answers section is the faster route. And if you would rather talk it through, the free survey is the place to do it.
We keep these guides up to date as products and regulations change.
Tell us about the room
A few details help us understand your project. We will get back to you to arrange your free survey and send a written quote.
- Free survey at a time that suits you
- A written quote and a plan for each day
- 10-year workmanship guarantee
Prefer a message? WhatsApp us on 07880 284133