Skylight Installation in Elmstead Market
- Fixed quote before we start
- Roof never left open overnight
- 10-year workmanship guarantee
- Fixed quote before we start
- 10 years workmanship guarantee
- 25 years fitting rooflights
- Skylights only, not a general roofer
Elmstead Market is a village east of Colchester that has grown steadily with modern estate housing, and that growth sets the pattern for the rooflight work here. This is not a place of listed cottages and awkward old frames. It is largely modern stock on modern roofs, and a lot of it is being extended, so the job that comes up again and again is daylight for a new open-plan room: a roof lantern or a run of rooflights over a kitchen-diner at the back of the house.
It is 13.2 miles from Ipswich in a straight line, around half an hour on the road down the A12 and out past Ardleigh. Close enough to survey easily and return without fuss.
A roof lantern is sized to the room, not the roof
The common mistake with a lantern over a new extension is choosing it by what fits the flat roof rather than by what the room below needs. Get it too small and the room stays dim in the middle; oversize it without thinking and you buy a heat problem. The right size comes from the floor area, the ceiling height and where the room faces, not from the biggest opening the roof can take.
Daylight from a single opening falls off as you move away from it, so a large room often does better with a generous central lantern than a modest one, and a very large room can do better still with two openings spreading the light. We work the size out against the room at survey, because the point of a lantern is an evenly lit room, not just a big piece of glass.
The heat problem nobody plans for
A big south or west-facing lantern lets in more than light. On a clear day it lets in a great deal of solar energy, and an open-plan kitchen under an oversized, unshaded lantern can become uncomfortable by mid-afternoon in summer. This is measurable, and it is designed for rather than hoped away.
- The g-value is the number that matters here. It describes how much solar heat the glass lets through. A lower g-value glass rejects more heat, which is what you want on a large or sun-facing lantern, while a north-facing opening can take a higher g-value to gather what light there is.
- Solar-control coatings do the work quietly. A modern coating cuts the heat gain without turning the glass dark, so you keep the daylight and lose the greenhouse effect.
- An opening element helps. Warm air collects at the highest point of a room, so an opening vent at the top of a lantern lets it escape, which is worth having even where you mainly wanted light.
The balance worth striking: the same glass has a U-value for keeping winter heat in and a g-value for keeping summer heat out, and the two pull slightly against each other. On a large lantern over a room that is lived in all year, both numbers are worth getting right rather than defaulting to whatever is in stock. The figures are set out on our energy page.
Modern roofs, and the flat-roof detail underneath
Most extensions here have a flat or low-pitch roof, and a lantern or a flat rooflight sits on a kerb built off that roof. The kerb is not a trim, it is the weathering detail: it lifts the glass clear of the roof surface and, built correctly, creates a fall so water runs away rather than sitting around the frame. Ponding beside a rooflight is the commonest cause of a leak on a flat roof, and it is a detailing failure, not a fault in the unit. We build the kerb with a designed fall and dress the covering up it properly.
On the main house roof, where a loft is being converted on this modern stock, a rooflight has to satisfy Part B for escape, which sets a minimum clear opening and a reachable sill, and Part L for thermal performance. Those are survey conversations, not email ones.
Estate growth east of Colchester, and the era split
Elmstead Market’s character comes from its position just east of Colchester, close enough to have taken a steady flow of estate housing as the town has spread outward. The result is a village with a modest older core and a much larger body of twentieth-century and more recent development around and beyond it. For rooflight work that balance matters, because it tips the typical job firmly towards modern roofs and modern extensions rather than old frames and listed consent.
There is an era split worth reading. The older core holds the small amount of period and early stock. The mid-century estates brought the first wave of standard suburban semis and detached houses. The more recent phases, part of the wider growth spreading east from Colchester, added the newest and most heavily engineered roofs. Most homeowners here are working with a modern roof of one vintage or another, and it is the newer, extended houses that generate the lantern jobs this page is really about.
Trussed roofs on the estate, and where the opening goes
On the main house, the estate roofs here are mostly factory trussed, and that quietly sets the terms for any rooflight going into the slope rather than onto an extension. A trussed roof is a fixed web of slim timbers, and an opening is planned to sit within the truss spacing rather than to cut across a truss. A unit sized to a single bay drops in with simple trimming. A wider one that has to interrupt a truss becomes a designed alteration, with the load carried into new trimming timbers back to sound bearing. So a rooflight to light a landing or a converted room on the main house is planned around the trusses first, and the size chosen to suit them.
The extension is the freer canvas. A new flat or low-pitch roof built for a kitchen-diner is designed from the start to carry a lantern or a run of rooflights, so the structure is arranged around the opening rather than the other way round. That is a good part of why so much of the work here lands on the extension. It is where the light is wanted, and where the roof gives the most freedom to place it.
Two roofs to survey, and reaching them
A lot of Elmstead Market jobs mean surveying two roofs on one house. On the extension the survey checks the kerb and the fall, the covering and how it is dressed up to the upstand, and the room below so the lantern is sized to it rather than to the roof. On the main house it checks the truss layout, the covering and its condition, and where an opening can sit without disturbing the structure. Access is generally easy on the estate streets, with drives, side space and rear gardens giving room for a tower or a short scaffold run, and we confirm the approach to both roofs at the same visit.
On the planning side there is usually little to worry about. Most of the modern stock is neither listed nor in a conservation area, so a rooflight within permitted development and a lantern on an extension are normally straightforward. The exception is the occasional older or listed building in or near the core, where consent and a more discreet unit come into play. We confirm your property’s status at survey so it is settled before any work is booked.
What we fit here
The staple jobs are a roof lantern over a kitchen extension and flat roof rooflights on properly detailed kerbs, plus pitched roof skylight installations and VELUX, Keylite or Roto units where a main-house loft is converted. The glazing numbers, U-value and g-value both, are on energy efficient skylight installation.
Getting a price in Elmstead Market
Every job is surveyed on the roof and priced once in writing, and the figure holds unless the specification changes. Installers with 25 years in the trade, a 10-year workmanship guarantee, installed to current Building Regulations. We replace failed units rather than patch them.
We cover the neighbouring villages at Ardleigh and Great Bentley, and down towards the river at Wivenhoe. The full list is on areas we cover.
Request a fixed quote for a rooflight in Elmstead Market. Tell us the room size and which way the extension faces, and we can talk sensibly about lantern size and glass before we visit.
What size roof lantern do I need over a kitchen extension?
It depends on the floor area, the ceiling height and the aspect, not on the largest opening the roof could take. Daylight falls off as you move away from an opening, so a large room usually wants a generous central lantern, and a very large one can do better with two openings spread across it. We size it against the room at survey, because the aim is an evenly lit space rather than the biggest possible piece of glass.
Will a big lantern make the room too hot in summer?
It can if the glass is not specified for it, particularly on a south or west-facing extension. The number to look at is the g-value, which describes how much solar heat the glass admits. A lower g-value with a solar-control coating rejects more heat while keeping the daylight, so the room stays bright without overheating. An opening vent at the top of the lantern also lets the warm air that collects there escape. We specify both to suit the aspect.
Why do flat-roof lanterns and rooflights leak?
Nearly always because water sits around the unit instead of clearing. A lantern or flat rooflight sits on a kerb, and the kerb has to be built to create a fall so rain runs away rather than pooling at the frame. Ponding is the commonest cause of a leak on a flat roof, and it is a detailing problem, not a fault in the glass. We build the kerb with a designed fall and dress the roof covering up it correctly.
Is Elmstead Market in a conservation area?
Most of the village is modern estate stock that is neither listed nor conservation-designated, so rooflights and lanterns here are generally straightforward. It is one of the reasons the work is more about lantern sizing and glazing than about consent. The exception is the occasional older or listed building in or near the core, where you would want a more discreet unit and, on a listed property, consent before any work. We check your specific address at survey so you know which position applies.
Can I have a rooflight on the main house as well as a lantern on the extension?
Yes, and they are really two jobs on two different roofs. The extension roof is built to carry the lantern, so it is the freer of the two and the size is driven by the room below. The main house is usually trussed, so a rooflight there is sized to sit within the truss spacing, or for a wider opening designed with trimming that carries the load into sound bearing. We survey and plan both at the same visit so they work together.
Do I need planning permission for a rooflight in Elmstead Market?
Usually not. Permitted development generally allows a rooflight projecting no more than 150mm above the roof plane and below the ridge, and most of the modern stock here is neither listed nor in a conservation area. A roof lantern on an extension is normally covered too, though a tall lantern that lifts the glass higher than 150mm is the point to check. We flag anything that crosses that line at survey.
Thinking about this job? We survey across Ipswich, Suffolk and north Essex and give you a fixed price before any work starts, with a 10-year workmanship guarantee.