Flat Roofs
New decks and built-up systems, GRP and EPDM. The right moment to add a lantern or a flat roof window is while the covering is off.
Flat roofing →
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07777 735785
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Skylight and Velux installation in Windsor, Berkshire, South West London and north Surrey, plus repairs to skylights that leak, mist up or crack. Book a free roof inspection and we will give you a fixed written quote with no obligation.
We install roof windows and skylights in pitched and flat roofs across Windsor, Berkshire, South West London and north Surrey. Velux and equivalent roof windows from the other main manufacturers, supplied and fitted by the same team that lays the roof itself.
Every skylight is cut in, flashed and weathered as part of the roof, not stuck on top of it. The underfelt is dressed into the opening, the flashing kit is the one made for your tile or slate, and the courses are cut and closed around it so water is shed away from the frame rather than left to find a way past a bead of sealant.
Book a free roof inspection and you will get a fixed written quote with the window, the flashing kit, the labour and the making good all priced in. No obligation, and the work is covered by our company workmanship guarantee.
Here is the thing most homeowners are never told: the majority of "skylight leaks" are not the skylight at all. They are the flashing kit and the covering around it. Replace the window and you can keep the leak. We diagnose it first.
The commonest fault by far. A flashing kit that was wrong for the covering, never dressed down properly, or has lifted with age, letting rain run behind the frame and down the plasterboard inside.
The rubber gaskets and weather seals around an older roof window perish and shrink. Water gets past on driving rain, and draughts follow. Seals can usually be renewed without touching the glazing.
Condensation trapped between the panes means the sealed unit has blown. Where the frame is sound the glazing unit can be swapped on its own, which is a very different job to a full replacement.
A roof window is a hole cut in the one part of your house whose whole job is keeping water out. Get the detailing right and it will sit there for decades. Get it wrong and it will find you every time the wind blows the rain sideways.
Most of the failures we are called to trace back to the same handful of shortcuts: a universal flashing kit forced onto a deep-profile tile it was never made for, underfelt cut off short at the opening instead of dressed into it, tiles trimmed too tight so there is no run-off either side, or a frame bedded in sealant and hoped for the best. Sealant is a repair for a Tuesday afternoon, not a detail.
We fit the correct kit for your covering and pitch, dress the felt into the opening so anything that gets past the tiles is carried back out, cut and close the courses around the frame properly, and leadwork the junctions where lead is the right answer. Then we make good inside so the reveal looks finished, not patched.
Roof light does something wall light cannot: it lands in the middle of a room instead of round the edges. These are the jobs we are asked for most across Berkshire and South West London.
The quickest way to turn a loft into a room people want to be in, and often the way natural light and ventilation requirements get met in the first place.
Dark central landings have no external wall to borrow light from. One roof window over the stairwell lifts the whole middle of the house.
Light straight down over an island or a run of units, plus somewhere for steam and cooking heat to escape on an opening window.
Single storey extensions push the original back wall inwards and can leave the middle of the house gloomy. Roof glazing in the new section fixes it.
Roof windows in the pitch either side of a dormer balance the light and stop the room feeling like it only faces one way.
Garage conversions, side returns and extensions with a flat roof take a lantern or flat roof window on a built upstand. Often done at the same time as a new flat roof.
Glazing a flat roof is a different discipline to glazing a pitch. Water does not run off a flat roof, it makes its way off, so the glazing has to sit above the level everything drains across. That means a timber upstand built into the deck, not a frame laid onto the covering.
We cut and trim the deck, build and insulate the upstand, then run the covering up and over it so the weathering is continuous roofing rather than a mastic joint doing a job it was never designed for. It is work we do alongside our flat roofing, and the natural time to do it is when a flat roof is being replaced or re-covered anyway.
We are based in Windsor and work across Berkshire, South West London and north Surrey. If your town is not listed, call us: if we cover it we will tell you, and if we do not we will say so.
New roof window, a lantern in a flat roof, or a skylight that has been letting water in for years. Tell us what you need and we will arrange a free inspection and a fixed written quote. Rather talk it through? Call either number, any time.
Tell us about the job, we usually reply within the hour.
Prefer to talk? Speak to Cornelius on 07777 735785 or 01753 415 442
"The team were knowledgeable and worked carefully to ensure everything was done properly. The roof looks solid and well finished. Very happy with the professionalism shown."
"The staff were courteous and clearly skilled. They worked efficiently and completed the job to a high standard. Everything was left clean and tidy. Excellent service overall."
New decks and built-up systems, GRP and EPDM. The right moment to add a lantern or a flat roof window is while the covering is off.
Flat roofing →
Leak you cannot trace? We find the fault, whether it is the skylight, the flashing beside it or something further up the roof entirely.
Roof repairs →
Adding roof windows during a re-roof is the cheapest and cleanest way to do it: the covering is already off and the scaffold is already up.
New roofs →Free roof inspection and a fixed written quote. 24hr emergency callout. A family-run team rated 5.0 by 200+ homeowners across Windsor, Berkshire and South West London.