If your conservatory is too hot to sit in by lunchtime in summer and too cold to use from October onwards, the roof is almost always the culprit. Thousands of conservatories across Newcastle and North Tyneside were built in the 1990s and 2000s with polycarbonate roofs that offer little insulation. A replacement conservatory roof can turn that space into a room you use all year, often without rebuilding the walls or base.

Below, we explain the roof options, the structural checks, and how planning and Building Regulations apply.

Signs your conservatory roof needs replacing

Polycarbonate sheets wear out slowly, so the problems creep up on you. The common signs we see include:

  • discoloured, yellowed or cloudy sheets that make the room look dull
  • loud drumming when it rains, which is hard to ignore on a wet Tyneside afternoon
  • leaks around the ridge, glazing bars or where the roof meets the house wall
  • green algae or dirt trapped inside the sheet channels
  • a room that overheats in sunshine and loses heat quickly on cold nights
  • heavy condensation on the underside of the roof in winter

An older glass roof can suffer too, especially if the sealed units have failed and misted between the panes. If the problem is one or two units, a repair may be enough. Our window and door repairs service covers misted glass and failed seals.

Solid, hybrid or glass: which replacement roof?

There are three main routes, and the right one depends on how you use the room, which way it faces and how much daylight you want to keep.

Solid tiled roofs

A solid roof uses a lightweight insulated frame finished outside with lightweight tiles or slate-effect panels. Inside, you get a plastered ceiling that can take spotlights, so the room feels much more like an extension. This is the best option for warmth and quiet. The trade-off is less overhead light, so the room relies more on the side windows.

Hybrid roofs with glazed panels

A hybrid roof is mostly solid but includes glazed panels or roof windows. It keeps much of the warmth of a solid roof while bringing light into the middle of the room. Hybrids work well on larger conservatories or where the room opens off a darker kitchen or lounge.

High-performance glass roofs

Modern glass roofs are a big step up from polycarbonate. Solar-control coatings reflect a good share of the sun's heat and reduce glare, and the sealed units insulate far better than old sheets. Glass is quieter in the rain too. If you love the bright, open feel of your conservatory and want to keep it, glass is the natural choice.

Can your existing conservatory take a new roof?

A solid roof is heavier than polycarbonate, so it's essential to check that the structure underneath can carry it. At survey, we look at:

  • the condition and strength of the existing window frames
  • the dwarf walls and whether they're sound and properly built
  • the base and foundations, including any signs of movement or cracking
  • how the roof will join the house wall and any first-floor windows above

Many solid roof systems are designed with a supporting framework that spreads the load, and some installations need extra posts or a ring beam. If the frames or base aren't up to it, we'll tell you honestly. Sometimes a glass roof is the better fit, and sometimes it makes more sense to replace the whole conservatory or build an orangery instead.

Do replacement conservatory roofs need Building Regulations approval?

This depends on the type of roof. Replacing a translucent roof with another translucent roof, such as polycarbonate to glass, usually keeps the conservatory within its exemption, provided the other conditions are still met. Those conditions include a ground-level floor area under 30 square metres, external-quality doors or walls separating it from the house, and no connection to the main heating system.

A solid roof is different. Once most of the roof is solid, the structure generally no longer counts as a conservatory for Building Regulations purposes, so it's treated like an extension. In practice, that usually means building control involvement to check the structure, insulation and ventilation. Some roof systems come with approved design details that make this easier, but the requirement doesn't disappear. We'll explain the process for your roof, and your council's building control team can confirm what applies.

Be wary of anyone who says a solid roof never needs any approval. The rules can change and they depend on your property, so it's always worth checking with building control before work starts.

Do you need planning permission for a new roof?

In many cases, replacing the roof on an existing conservatory doesn't need a planning application, especially if the shape and height stay similar. However, the rules depend on your property. Homes in conservation areas, properties with Article 4 directions, listed buildings and flats can all have restrictions. If the new roof is noticeably taller or changes the outline, permitted development limits may also come into play.

Check with Newcastle City Council, or North Tyneside, South Tyneside, Gateshead or Northumberland depending on where you live, before you place an order.

Repair, replace the roof or rebuild?

Not every tired conservatory needs a new roof. If the roof is sound and the main complaint is draughty or misted windows, new sealed units or upgraded double glazing may help. If the frames, dwarf walls and base are in good condition but the roof is the problem, a replacement roof gives the biggest improvement for the least disruption.

If the whole structure is failing, with rotten or warped frames, a cracked base or damp walls, it's better to start again. A new conservatory designed with a modern roof from the outset will last longer than a new roof on a weak frame.

What affects the cost of a replacement roof?

Every roof is made to measure, so the price depends on your conservatory and your choices. The main factors are:

  • the size and shape of the conservatory, as Victorian and P-shaped roofs are more complex than lean-tos
  • the roof type, whether solid, hybrid or glass
  • any structural work needed, such as extra support posts
  • tile style and colour, and internal plastering
  • spotlights, electrics and internal finishing
  • access around the conservatory and how the roof meets the house

Our quotes are free, fixed and itemised, and we include removal and responsible disposal of the old roof. If your conservatory is crying out for a better roof, send us your details through the quote form and we'll arrange a survey.