Skip to content
Roofs of London - A local company you can trust

Valleys, junctions and bays

Roof repairs in Bromley.

Larger Bromley homes tend to have complicated roofs, with slopes meeting at valleys, bays tied into walls and gables set into hips. Those junctions collect water and leaves, so they are where leaks usually begin. We focus on the point where the roof changes direction, not just the tiles nearby.

  • Valley repairslead and tiled valleys looked after
  • Clear pricesin writing before we start
  • Mon–Sat8am to 6pm

Why valleys are the weak point

A valley takes the run-off from two slopes and has to carry it all to the gutter. Lead can split, mortar along the cut tiles can crumble and leaves can build up until water spreads sideways under the tiles. Because the leak often appears lower down the roof, the valley is easy to overlook.

  • Split or thinning lead in the valley
  • Mortar falling away from cut tile edges
  • Leaves and moss damming the channel
  • Damp on a ceiling corner below the junction

Bay roofs, gables and other junctions

Small roofs over bays and porches often leak where they meet the main wall, and the fault is usually the flashing and not the tiles. Hips on detached houses also need attention where they join the ridge. We look at every junction near the leak before deciding what needs doing.

  • Lead flashing where a bay meets the wall
  • Hip and ridge junctions on detached houses
  • Dormer cheeks and sides tied into the slope
  • Dry hip fitted where mortar keeps failing

Leafy roads and large roofs

The borough has a lot of mature trees, particularly around Chislehurst, Petts Wood, Hayes and Beckenham, and the leaves end up in valleys and gutters every autumn. Many homes here are interwar or Edwardian houses with several slopes, and parts of the borough are conservation areas. A roof like that benefits from repairs that respect its shape instead of simple patching.

  • Valleys that fill up every autumn
  • Interwar houses with gables and bay roofs
  • Period homes where tile matching matters
  • Gutter clearing while we are on site, where needed

How the job works

  1. 1Clear the channelDebris comes out of the valley first, because it can hide a split or cracked section.
  2. 2Trace the water pathWe follow the route from the junction to the stain, so the repair goes where the water actually gets in.
  3. 3Price the junction repairYou get photos and a written price, showing whether cut tiles, lead or flashing need attention.
  4. 4Rebuild the junctionLead or tiles are renewed and the edges finished so water runs cleanly down to the gutter.

Why choose us in Bromley

  • Photos of the valley or junction, including the parts you can’t see from the garden.
  • A clear written price for your Bromley repair, with no obligation to go ahead.
  • Honest guidance if a complicated roof only needs one small fix.

Common questions

Why does my roof leak at the corner of a room?

A leak in a room corner often sits below a valley or wall junction. Water enters at the junction, runs down the timber and appears at the lowest point, so a corner stain is a good clue.

How often should a roof valley be cleared?

If you have trees nearby, it is sensible to have valleys and gutters looked at after autumn leaf fall. Homes without overhanging trees need it far less often.

Does a split in valley lead need a full replacement?

It depends on how widespread the wear is. A small isolated defect may be repairable, but thin or heavily split lead along the valley usually needs renewing. We’ll show you photos either way.

Ready for a free, no-obligation quote?

Speak to our team today. London, Essex, Kent, Sussex and the Cotswolds.