Why late May is the time to plan conservatory upgrades
If your conservatory was too hot in July last year, too cold in February, or just looking tired by the end of winter, late May is when the upgrade conversation gets useful. You’re still ahead of the peak summer rush, the weather’s settled enough for roof work, and any changes you commit to now will be in place before the long evenings start. Whether you’re looking at a refresh or something more substantial, our conservatories range is the right starting point.
We see upgrade enquiries fall into three categories: making the room more comfortable across the seasons, updating the look, or extending what the room can actually do. Each has different price points and lead times.
If your conservatory is past saving (some are), the orangeries page covers the natural step up to a more substantial extension. A complete rebuild is sometimes the answer when patch-and-mend has reached its limit.
Roof options: glass, polycarbonate, tiled or hybrid
The roof is where most older conservatories fail their owners. Polycarbonate roofs from the 1990s and early 2000s are noisy in rain, hot in summer and cold in winter, and they’re the single biggest reason conservatories end up unused for half the year. Replacing one is a one-to-three-day job and the difference is dramatic.
Modern glass roofs with solar-control coatings reflect a meaningful percentage of summer heat back out while letting daylight in. They’re significantly quieter in rain than polycarbonate. Solid tiled roofs go further: they turn the conservatory into a proper room with insulation values approaching the rest of the house, and they’re classed as an extension under Building Regulations Part L rather than a conservatory.
Hybrid roofs, part glass and part tile, keep light over the seating area and insulation over the perimeter. Combined with new French doors onto the garden, a hybrid roof refresh changes how the whole room feels season to season.
Ventilation: the unglamorous fix that changes everything
Many conservatories don’t have a heat problem so much as a ventilation problem. Hot air rises, and if there’s nowhere for it to go, the whole room cooks. Roof vents — manually operated or thermostatic — are a low-cost upgrade that makes a real difference. Trickle vents in the window frames help passive air circulation through the day.
If you’re already replacing windows or doors as part of a refresh, this is the moment to spec the ventilation properly. The Energy Saving Trust’s guidance on heating and cooling covers the basics of passive cooling and where active intervention starts to make sense.
Doors, frames and the visual refresh
A surprising number of conservatories are let down by tired doors. Original opening leaves with single locks and worn seals make the whole room feel dated and let air in and out as the seasons change. Swapping in modern French doors or a bifold set is a meaningful upgrade in its own right — better seals, better security, and a much more contemporary look.
Frame colour is the other quick win. Anthracite grey on the outside with white inside is genuinely popular for a reason: it modernises a 1990s conservatory without major structural work. Foiled frames are now standard and don’t need painting.
When upgrade tips into rebuild
There’s a point where patching up an older conservatory costs more than starting again. If the dwarf walls are sound but everything above them is failing, a frame-and-roof rebuild on the existing base is usually the cost-effective answer. If the base itself has movement or damp problems, those need addressing before any new structure goes on top.
We give honest advice at survey on this. If your conservatory is twenty years old and saving the frames will cost three-quarters of the price of a new build, we’ll say so. There’s no incentive for us to push the more expensive option — the work has to make sense for you to be happy with it.
Costs and timescales
Roof replacement on a standard conservatory typically takes one to three days and costs from around £4,500 for a glass replacement up to £8,000 to £15,000 for a solid tiled conversion. Door and window refreshes range from £2,000 for a single door set to £8,000+ for a full perimeter window and door replacement. Ventilation upgrades are usually under £500.
Full quotes come from a site visit. We don’t pressure the day’s decision and we don’t follow up with sales calls. When you’re ready, you’ll know, and you can come back to us.
Frequently Asked Questions
Do I need planning permission for a new conservatory roof?
Replacing a glass or polycarbonate roof with another glass or polycarbonate roof usually doesn’t require planning permission. Converting to a solid tiled roof can sometimes need Building Regulations approval as it changes the classification from conservatory to extension.
Can I upgrade my old polycarbonate roof to glass?
Yes, provided the existing frame can support the additional weight. A survey will confirm whether reinforcement is needed. Most well-built conservatories handle the change without major structural work.
How much heat does a solar-control glass roof actually block?
Quality solar-control glass typically reflects 60-75% of solar heat compared to a standard polycarbonate roof. The room won’t be air-conditioned cool, but it’s the difference between unusable and comfortable on a hot afternoon.
Should I keep the dwarf walls?
If they’re sound, yes. They give insulation, mounting points for radiators, and keep furniture options open. Replacing them with full-height glass is possible but rarely necessary.
Is a tiled-roof conservatory still a conservatory?
Strictly, no — it’s classed as an extension under Building Regulations. Practically, most people still call it a conservatory. The classification affects what building consents are needed.
Next steps
If your conservatory’s letting you down, the next step is a free site visit. We’ll look at what you’ve got, talk through realistic upgrade options, and quote in writing. Arrange a visit when it suits you — there’s no pressure to decide on the day.
