Cornforth skylights and rooflights, new or replacement
Cornforth is a village in County Durham, 22.8 road miles south of Newcastle. Maybe a room has never had daylight, or maybe an old rooflight has clouded over. Either way, we begin with the room itself and the roof above it.
The old rooflight that went milky years ago
A rooflight can serve a house well for a long time and then slowly lose its clarity. The glass fogs between the panes, the room under it dims, and the unit starts to look tired. In Cornforth, as anywhere, that is a good moment to ask whether a straight swap would be enough, or whether a different kind of unit would suit the room better.
Rooflights we supply for Cornforth homes
A brand-new opening and a swap for an old unit begin the same way, with us coming to look. Roof lanterns, Flat roof rooflights, Roof windows, VELUX windows, Electric rooflights, Energy efficient rooflights, Misted rooflight replacement, Walk-on rooflights, Conservation rooflights, Sun tunnels.
Cornforth, room to roof
Light for a room, a swap for a tired unit
Four steps follow. First comes spotting the room that lacks light, then choosing what the roof will carry, then handling a worn or clouded unit that is overdue for replacement, and last the visit that turns a plan into glass overhead.
Which room of my Cornforth home should get the skylight?
Short answer
Trust your habits. If you flick a lamp on at breakfast in one particular room, or if a different room always smells shut up, one of those is probably the answer. What lies above its ceiling then governs everything that follows.
Cornforth lay in the parish of Bishop Middleham before the middle of the Victorian period, back when County Durham's coal mining was at its height. That history tells us nothing about your house, so the room is where we begin.
Notice your own habits
Where do your fingers find a switch before you have registered the hour? A hallway, a bathroom behind the stairs, a back bedroom whose window faces a wall, an attic boarded for storage: wherever it happens, daylight is absent.
Listen for stale air
Some rooms are dark and also close. A small bathroom, a utility, a box room. For those, an opening unit solves two things at once: daylight from above and fresh air that does not rely on a wall. A fixed unit would solve only the first.
Ask what is overhead
Every ceiling has something over it, and that something sorts the options. A loft with a sloping roof overhead might host a roof window straight above, or a sun tunnel running through the void. A flat roof overhead opens the way to flat glass or a lantern. A room overhead blocks the idea altogether, and we would tell you that on the visit rather than on the day of the job.
Bring a short list
Plain words are fine. Name the room, give its rough size, say if fresh air matters, and mention anything already in the roof. Two phone pictures are plenty: your ceiling seen from underneath, and the outside of the roof wherever you can safely see it from. They let us prepare for the visit.
A quick walk-round before we visit
- Which room would you most like to see in daylight?
- Does that room also feel stuffy because nothing opens?
- Is a loft or a flat roof directly above that ceiling?
- Does an old rooflight already sit in that roof?
- Is the building shared, so that someone else might own part of the roof?
Once I know the room, what product do I choose for the roof?
Short answer
In short, windows go with slopes, flat glazing and lanterns go with flat roofs, and a tunnel suits the tiniest room under a loft. Fixed glass, hand-operated or motor-operated opening are the main choices inside each family.
Three families cover nearly every case. Within each, the use of the room settles which version to specify, and it is worth thinking about how you will actually live with the unit, not only how it looks in a brochure.
Roof windows
For a sloping roof, a roof window is the standard solution. It is bedded in the slope with flashings matched to the slate or tile around it. A bedroom benefits from one that opens, and the pivot or top-hung arrangement decides how the sash moves. Our roof windows page explains the choices. The VELUX range is well known, and the VELUX page sets out what that brand offers.
Glass raised on a flat roof's upstand
On a flat roof, glass is raised on an upstand, which makers commonly set at around 150mm above the finished roof surface. A flat rooflight lies close to level and keeps the roofline neat. A lantern rises above the roof and gathers light from every glazed side. Both can be fixed or opening, and both can be specified with glass chosen for warmth or for solar control.
Sun tunnels
For a small room, a landing or a cupboard-sized bathroom, a sun tunnel brings in daylight without a window. It has no view and no opening, yet it makes a surprising difference to a room that has had nothing before.
Choosing how it opens
A manual opener is a handle or a pole. An electric opener is a motor, and it is worth considering where the glass is out of reach. Electric units need a power supply, so the point is raised early, and an electrician may be needed. Our electric opening rooflight page covers the detail.
Glass and insulation
Where people sleep or sit below, the inner pane is laminated. For an existing home in England, the limiting U-value is 2.2 W/m²K for a rooflight and 1.4 W/m²K for a roof window, and the quote tells you what each unit achieves.
My old rooflight has misted up. Do I replace the glass or the whole unit?
Short answer
The frame decides. Sound frame, sound seal to the roof: new sealed glass may be enough. Worn frame, or a unit that falls short by modern standards: a whole new rooflight serves better. We can tell which on the visit.
Misting is the sign that the seal around a sealed glass unit has let air in, so moisture appears between the panes. It will not clear by itself, and the room under it looks dull.
Two routes
One route swaps the sealed glass for a new unit and keeps the existing frame. This can suit a rooflight whose frame is in good order, where only the glazing has failed. The other route removes the whole rooflight and fits a new one in the same opening. That suits a frame that is worn, a unit that is thin by modern standards, or a case where you would like something different, such as an opening version in place of a fixed one. Our misted rooflights page sets both routes side by side.
What the visit decides
At the property we look hard at the frame, the flashing and where the unit meets the roof. We find out whether replacement glass of the right size is obtainable. If the unit is an old one, a whole new rooflight is often the more sensible course, since it gives better insulation and a fresh seal to the roof at the same time. We then say which route we recommend and why.
Permission and notification
Most rooflights on houses fall under permitted development, within set limits, and the planning guide sets them out. Flats are the exception: they need planning permission. Whether a swap needs notifying to Building Control depends on what is being done, and we tell you at the visit and handle the notification where it is needed.
Choosing better this time
A replacement is a chance to improve on what was there. If the room was stuffy, choose an opening unit. If it was hot in summer, ask about solar control glass. If it was cold, ask about the glazing specification.
Swap or resize: what shifts the figure
Keeps it lower
- A swap that reuses the same opening
- A sound frame that can stay
- A standard size that is readily available
- Easy reach from inside the loft
Pushes it higher
- A change of size, which alters the opening
- An upgrade from fixed to electric opening
- A flat rooflight with a damaged upstand
- Special glass such as solar control
This shows what moves a price. The visit comes first and your own figure arrives in the quote.
How does it go from my first message to the new unit overhead?
Short answer
Message us about the room and add a photo. We then visit at no charge and follow up with a quote that is written and fixed. After that come the date, the fitting, the Building Control notification wherever it is needed and, at the end, the ten-year workmanship guarantee in writing.
The sequence is short, and none of it requires you to understand roofs.
Your message
Start on WhatsApp or the quote page. A line about the room, the building and any existing rooflight is plenty. We arrange a time for the visit that suits you.
The visit
One of us views the room from underneath and the roof from over the top. For a replacement, we examine the old unit, the frame and the flashing. For a new opening, we find where the rafters run and how the covering is laid. We measure, take notes and talk through the options with you, without a price on the day, since the roof decides what is possible.
The quote
Expect the quote to name the unit and its dimensions, the glass, and everything the work includes, at a fixed price. Ask for a bigger unit and the price will follow, but otherwise it stays.
The fitting
For a brand-new opening the sequence is: strip back the slates or tiles over the chosen spot, frame the gap between rafters, bed and weather the unit, and finish the inside with a lining. For a swap, the old unit comes out first and the opening is looked over before the new one is set. For a replacement, the old unit comes out, the opening is checked and the new one goes in. When we agree the date, we explain how the day will unfold, so you can plan around it.
After the fitting
Where the work is notifiable, we handle the notification to Building Control, whether that is the local authority or a registered building control approver. A written ten-year guarantee on our workmanship is handed to you. Ferryhill and other places close by go through the same stages; for budgeting, see the page on costs.
Cornforth owners ask about swaps and new openings
How can I tell a misted rooflight from ordinary condensation?
Look at where the cloud sits. Misting shows as a cloudy or streaky film between the two panes, which no amount of wiping will clear. If the cloud is on the room side only, it may be ordinary condensation. We can tell the two apart when we visit.
Is it worth upgrading when I swap an old unit?
Often, yes. A new unit gives a fresh seal, current insulation figures and the chance to change type, perhaps to an opening one. We set out the options in the quote so you can weigh what each adds to the room.
Will the new rooflight fit the old opening?
In many cases a new unit is chosen to match the existing opening so the roof is disturbed as little as possible. If the old size is no longer made, we say so on the visit and show you the nearest alternatives.
My house is a flat in a converted building. Does that change the plan?
Yes. A flat has no householder permitted development, so a new rooflight needs planning permission from Durham County Council. Who owns the roof is recorded in your title or lease, which may also require the other owner's consent.
Do you only cover Cornforth itself?
No. Our area reaches about thirty miles out from the city, taking in many villages and towns in County Durham, Tyneside and Northumberland. Everyone gets the same visit, quote and guarantee.