Established 1989 25-year guarantee on new roofs Fully insured & Velux qualified
Nielsen Roofing logo NIELSEN
ROOFINGBristol · since 1989
Velux & rooflights

Velux windows & rooflights

Bring light and air into a loft, landing or extension. As a qualified Velux installer, we fit roof windows that are properly flashed and sealed — so they never leak or draught.

A roof window transforms a dark loft or dim landing into a bright, usable room. But a Velux is only as good as its installation — the flashing kit, the tile interface and the seal around the frame are what keep the weather out. Fitted wrong, they are a notorious source of leaks. Fitted right, you will forget they are even there.

Qualified installation

We are Velux qualified, so the window is installed to the manufacturer standard with the correct flashing kit for your roof covering — tile, slate or low-pitch. That means a clean interface with the surrounding roof and a watertight seal that holds.

New openings, replacements & repairs

Whether you want a new roof window formed in a loft conversion, a tired old rooflight swapped out, or a leaking one put right, we handle the lot — including making good the surrounding tiling and, where needed, the interior reveal.

What's included

  • Qualified Velux roof window installation
  • New openings formed in tile & slate roofs
  • Replacement of old or leaking rooflights
  • Correct flashing kit for your roof covering
  • Flat-roof rooflights and lanterns
  • Leak repairs to existing roof windows
  • Surrounding tiling and reveals made good
New Velux window installed into a tiled roof in Bristol

Free quote for velux windows & rooflights

Tell us what's going on and we'll get back to you fast — usually same day.

  • No-obligation, fixed written price
  • Fully insured, local team
  • Since 1989
Request your quote 07481 875074

Velux windows & rooflights — recent jobs

Good to know

Common questions

Are you a qualified Velux installer?

Yes. We install to Velux standards using the correct flashing kit for your roof, which protects the manufacturer guarantee and, more importantly, keeps the window watertight.

Can you fit a Velux in a day?

Most single roof-window installations are completed in a day. We will confirm timescales once we have seen the roof and the opening required.

My existing rooflight leaks — can you fix it rather than replace it?

Often, yes. Many rooflight leaks come down to failed flashing or seals rather than the window itself. We will inspect it and tell you honestly whether a repair or a replacement is the better call.

Got a roof that needs sorting?

Free, no-obligation quotes across Bristol and the surrounding area. Honest advice, tidy work, and a proper job — every time.

Call now Free quote