The short answer
A new conservatory roof normally has two kinds of cover: a workmanship guarantee from the installer, for how it was fitted, and a warranty from the roof system's maker, for the product. Our cover is a written 10-year workmanship guarantee, not backed by insurance. System warranties vary widely, so read their terms and ask what voids them.
Fitting cover and product cover are different things
A workmanship guarantee speaks for what the installer did: how the roof was fixed, sealed, flashed against the house wall and drained. If a joint leaks because it was badly made, that is a workmanship matter. A system warranty is the manufacturer's undertaking about the product, such as the panels, the tiles or the frame components, and it answers for faults in the material, not in the fitting.
The two can overlap, yet they come from different companies and carry different conditions. A leak at the wall junction could be argued either way unless you know what each paper covers. Hold the two documents side by side and mark where each begins and ends, so there is no gap between them when something fails.
Keep the delivery notes and product labels for the roof system, because a manufacturer may ask for proof of what was fitted before it honours a claim.
Questions to put to any guarantee before you accept it
Ask to see the document before work starts, not after. Look for the start date, the length, the inclusions, the exclusions and the contact for claims. A short guarantee in clear wording is worth more than a long one that lists every likely cause as an exception.
Check three points in particular. First, whether it covers labour as well as materials, since a free replacement part is little use if fitting it falls to you. Second, whether it passes to the next owner when you sell. Third, what you must do to keep it alive, such as clearing gutters each year or leaving repairs to the original installer. Get each answer in writing, because a spoken reassurance cannot be quoted back to anyone.
Look at the language as well. "Subject to normal wear and tear" and "reasonable use" are common phrases, and each narrows the cover. A fair document names what it will repair or replace and how quickly it will respond, with a contact you can reach.
A lifespan figure is not a guarantee
A published lifespan is a typical range for a covering, and nobody stands behind it. The Eco Experts (updated 2024) put polycarbonate conservatory roofs at around 10 to 15 years and a solid or tiled one at around 50. Both depend on exposure, workmanship and upkeep. A system warranty may run shorter or longer than those numbers, and it does not extend the life of the roof by a single day.
Be wary of any sales line that blurs the two. If someone says a roof will last 50 years, ask whether that is a prediction, a warranty or a guarantee, and who pays if it fails sooner. For how the work itself unfolds on site, read our guide to replacing a conservatory roof in Stroud: the process.
Remember that a lifespan also assumes the roof is looked after. Gutters that overflow onto the wall, moss left on a tiled finish and cracked sealant at the glazed edges all shorten the life of a roof, whichever covering it has.
The consent paperwork that sits beside the guarantee
Because a solid conservatory roof is a material alteration, it falls under the Building Regulations and calls for a building control application (Homebuilding and Renovating, 2023). An inspector then checks the work against the requirements, and the completion paperwork from building control is worth keeping alongside any guarantee.
That record travels with the house. When you sell, a buyer's solicitor is likely to ask for evidence that the roof was built with consent, and a guarantee with no such papers behind it carries less weight. Keep the quote, the guarantee and the building control correspondence together in one folder. Shapes differ in what is checked at the wall and the eaves, as you can see for a lean-to conservatory roof and a Victorian-style conservatory roof.
Reporting a fault and keeping your cover intact
If something goes wrong, tell the installer promptly and in writing, with dated photographs. Avoid letting another firm patch the area first unless water is coming in, because that can muddy what is covered. In an emergency, protect the room, take your pictures, then report it.
Our survey photographs give a starting record of how your roof and frame looked before work began, and the written quote makes the covered work easy to identify. Back at the beginning, our process guide and the conservatory roof replacement page set out the range of work and the typical costs.
If a fault turns out to lie outside the guarantee, ask for that decision in writing with the reason, so you know where you stand before you pay another firm to fix it.
What a guarantee will not do
No guarantee stops a roof wearing out in the ordinary way, and none covers damage from storms, falling branches or a ladder leant against the gutter. It will not cover a frame problem that was not part of the work, or a leak caused by someone else cutting through the covering later to fit a cable or an aerial.
It also cannot make up for a poor specification. A roof that is too heavy for its frame, or sealed without airflow, may fail however well the paperwork reads. That is why we photograph the frame and agree the build-up before any work, and why consent comes first. A guarantee is a safety net for faults in the work. It is not a substitute for choosing the right roof in the first place.