Purfleet-on-Thames
Purfleet roofs, house by house
How the town's older terraces, council-built houses and flat-roofed extensions each take a rooflight, and what keeps them warm afterwards.
01The housing
Three kinds of Purfleet roof, three kinds of glass
Rooflight installation in Purfleet-on-Thames starts with a simple question: which of the town's main kinds of home are you in? The answer decides the window, the fixing and where the heat will try to escape.
Purfleet sits on the Thames in the borough of Thurrock, with the river on one side and the A13 and the M25 not far behind it. The housing is a layered mix. There are long-established rows of terraces and semis built for the working town, council-built homes from the middle of the last century, and, nearer the water, a newer wave of riverside blocks of flats that came with the regeneration of the old riverfront. They share a postcode and almost nothing else once you look up at the roof.
That matters because a skylight is not one product. A pitched roof takes a roof window that sits in the slope. A flat extension roof takes a kerb-mounted rooflight or a lantern. A top-floor flat takes none of those without the freeholder's say-so. We sort that out at the survey, and the table below is the first pass we make before we have seen your loft.
| Purfleet home | Usual glass | Heat to watch |
|---|---|---|
| Older terrace or semi | Roof window in a loft room, or a sun tunnel for a landing | Rafters packed with thin or old insulation |
| Mid-century council-built house | Flat rooflight over a rear kitchen or utility extension | Original flat roof with little insulation under it |
| Bungalow or ground-floor extension | Lantern or large flat rooflight | Kerb height and the seal to the deck |
| Riverside block of flats | Only with landlord consent, usually none | Shared roof build-up we do not own |
02Council
Thurrock Council and your Purfleet roof
Thurrock Council is the planning authority for Purfleet, and for most houses a new rooflight is a short conversation with it, or none at all.
Thurrock is a unitary authority, which means one council handles planning and local land questions for the whole borough. You do not have to work out which tier of local government you are dealing with. If you are unsure of anything about your address, one call to Thurrock settles it.
The detail of what a house can do without applying is in our skylight planning permission guide, and we keep it there rather than repeating it on a town page. What we can say about Purfleet is where the questions tend to come from. Houses are the simple case. Flats and maisonettes are not covered the same way, which is why the riverside blocks need a different route. And a few of the older buildings in the town may have a protected status, so anyone in a building of that kind should ask the council before we draw up a quote.
03Flat roofs
The flat-roofed rear extension, warm at last
Plenty of Purfleet houses have a single-storey extension at the back with a flat roof, and that is where a rooflight does the most good.
These extensions were often added to give a family a bigger kitchen or a dining room. They tend to have a plain ceiling and a small window at one end, so the middle of the room is darker than anyone wanted. A flat roof rooflight puts daylight straight down onto the worktop. It is also the part most likely to make the room colder, if it is rushed.
Every flat rooflight sits on a kerb, which is the raised upstand around the opening that the glass frame bolts to. If the kerb is insulated and the frame is sealed to it, the room stays warm. If it is not, you feel a cold spot on your shoulders in January. We look at what is already under the roofing, because an old flat roof with little insulation can be improved at the same time as the opening is cut.
Flat rooflight in the extension
One pane of daylight over the kitchen run or the table. Low profile, simple lines, a smaller heat load and a ceiling that stays clean. A good fit for a small or narrow room.
Lantern for a wider room
A raised, pitched glass roof that lifts the ceiling and gathers light from several sides. Right for a wide, deep room, but with more glass it asks more of the glazing spec, so we size it to the space.
If you are weighing the two, our roof lanterns page shows the styles, and we will talk you out of a lantern if a flat unit does the job.
04Lofts
Loft rooms and landings in the older streets
In the older terraces and semis, the roof space is the room waiting to be used, and one roof window can turn a storage loft into a proper bedroom or study.
The trouble with older roofs is what is inside them. The insulation may sit between the ceiling joists rather than along the rafters, or there may be very little of it. A new window cut into the slope will show you exactly how much. We measure the rafter depth before choosing a roof window, because the frame needs to sit in the insulation line and the lining inside needs to close tightly to the ceiling.
For a dark landing or a bathroom with no outside wall, a sun tunnel is often the better answer. It brings daylight down a reflective tube through the roof space, needs a much smaller opening, and loses far less heat than a full window. It does not give you an outlook or fresh air, so it suits rooms where you want light and little else.
- Measure the rafter depth before choosing a frame, so it sits in the insulation line.
- Check whether the existing insulation is at the rafters or the joists.
- Decide if you want fresh air and an outlook, or only light.
- Look at the room below. A landing or bathroom may suit a sun tunnel better than a window.
- Plan where the lining meets the ceiling so there is no cold edge.
05Heat
What keeps a Purfleet room warm under glass
Glass lets heat out. The skill is making that loss small, and it comes down to four parts working together.
The glass itself carries a U-value, measured in W/m²K, which counts the heat escaping through one square metre of it when the air on either side differs by a single degree. A lower number is warmer. Between the panes sits a spacer, and a warm-edge spacer cuts the cold bridge round the rim. Then comes the frame, then the kerb or collar around it, and then the lining inside. If any one is weak, the room finds it.
Our energy-efficient rooflights page goes through each part. Here is the short form for a Purfleet loft or extension.
A warm Purfleet rooflight, part by part
- Glass
- Double glazed as a minimum, triple where the room is large or north-facing
- Spacer
- Warm-edge, so the glass margin does not turn into a chilly seam
- Kerb or collar
- Insulated and sealed into the roof build-up
- Lining
- Insulated reveal, closed to the ceiling finish
- Blind
- Thermal or blackout blind for winter nights and bright afternoons
06Numbers
The figures behind a warm skylight
You do not need to become an engineer to buy a rooflight, but three numbers are worth knowing before you compare quotes.
Part L of the Building Regulations sets a maximum U-value for any new rooflight put into an existing home. A good double glazed rooflight sits well inside that, and triple glazing goes lower again. Our Building Regulations answer explains when the rules apply to a replacement or a new opening,. Broad UK price ranges are on our costs page if you want a sense of scale before the survey.
- 2.2W/m²K, the cap Part L puts on a new rooflight in an existing house
- 1.4W/m²K, about right for a good double glazed rooflight
- 1.0W/m²K or lower, which triple glazing can deliver
07Getting here
From Basildon to Purfleet, and how the work runs
Purfleet is about 15 road miles from our Basildon base, close enough that the team who survey your roof come back to fit it.
The run from Basildon is along the A13 towards the river, with the M25 and the Dartford Crossing approach marking where Purfleet begins. Traffic on that corridor can be heavy at the wrong time of day, so we plan arrival times, deliveries and any access equipment before the day itself. The same applies to parking on the older streets where there is little room for a van and a delivery.
We also cover the neighbouring places, including Aveley, South Ockendon and Rainham on the north bank, and Dartford, Erith and Crayford across the river. If your roof is in one of those, the same team and the same method apply.
It helps if you can tell us a little before we come. A few photos of the roof from the garden, a note of which room you want brighter, and anything you already know about the loft or the extension build. None of that is required, but it lets us arrive with the right ladders, the right questions and a first idea of the frame depth. On the day we measure, look at the insulation, and talk through where you would like the light to fall in the room and what you use that room for, before we put anything in writing.
- Free survey at the house, inside and on the roof, with a look at the insulation.
- A written quote listing the glass, the upstand or weatherproofing, and the inside finish.
- On fitting day the floors and furniture are covered, and the same team stays with the job throughout.
- Lining and finishing inside, so the reveal is insulated and closed up.
- Building Control informed whenever the job requires it, plus our 10-year workmanship guarantee set out in writing.
Questions Purfleet homeowners ask about skylights
Can I put a rooflight in a Purfleet flat?
Usually only with your freeholder's written consent, and sometimes not at all, because the roof belongs to the block. Our planning guide explains how flats differ from houses.
Do I need to tell Thurrock Council about a new rooflight?
For most houses it is a short check rather than a full application, but your address decides it. Ring Thurrock Council with the details, then tell us what they say.
What if I live in one of the riverside blocks in Purfleet?
The roof of a block belongs to the freeholder or the management company, so you need their written agreement before anyone cuts into it. Their agreement comes first, so ask them before anything else. After that, get in touch if you want to know what the roof could take.
Is a sun tunnel better than a roof window for a landing?
Often, yes. A sun tunnel needs a smaller opening and loses less heat, though it will not give you fresh air or an outlook. We will say which suits your room.
How do I book a survey in Purfleet?
Purfleet-on-Thames enquiries are easy: use the quote form or open a WhatsApp chat. The survey and the written quote are both free of charge.
