Conservatory Roof Replacement Timeline 2026: Day-by-Day Install Schedule

A conservatory roof replacement in the UK in 2026 takes 3 to 7 days on site for a typical 12–18m² conservatory. Glass replacements are fastest at 2–3 days. Tiled (insulated) replacements take 4–7 days. Larger Victorian or P-shape conservatories add 1–2 days. The full project from initial enquiry to scaffolding-down typically runs 6–10 weeks when you factor in survey, lead time, and Building Notice (if applicable). This guide walks through every stage so you know what to expect, what to ask the installer, and where the most common delays happen.

All timeline figures are verified against three approved-installer schedules in May 2026, plus interviews with five customers who completed conservatory roof installs in 2024-2025. For the underlying roof choices, see our tiled vs glass vs polycarbonate comparison, the UK-wide cost breakdown, and our planning permission guide.

End-to-End Project Timeline

The full project from first enquiry to a finished conservatory roof typically runs 6–10 weeks. Most of that time is lead time waiting for the installer's schedule and the manufacturer's prefabrication. The actual on-site work is only 2–7 days of the total.

The longest stage by far is manufacturer prefabrication at 3–6 weeks. Guardian and Equinox typically run 4–6 weeks for spring/summer 2026; LivinROOF and SupaLite run 5–8 weeks. If you need the install completed before a specific date, factor in this lead time when you start enquiries.

Day-by-Day: Tiled Roof Install (5-Day Standard)

The most common conservatory roof install in 2026 is a tiled (insulated) replacement on a typical 14–18m² Edwardian conservatory. Here is the day-by-day breakdown for a 5-day install – the standard schedule used by Guardian, LivinROOF, and Equinox approved installers.

Day 1: Scaffolding and Strip-Out

• 08:00–09:00: Installer crew arrives. Materials offloaded. Site protection set up (dust sheets inside, ground protection on patio).
• 09:00–11:00: Scaffolding erected around the conservatory. Typically 2-3 sides depending on access.
• 11:00–13:00: Existing polycarbonate or glass roof stripped. Polycarbonate takes 1-2 hours; glass takes 2-3 hours.
• 13:00–14:00: Lunch break. Frame inspected. Any structural reinforcement decisions made.
• 14:00–17:00: Aluminium ridge bar fitted. Engineered timber rafters installed to factory-cut dimensions.
• End of Day 1: Conservatory has structural roof in place but is open to the weather. Tarpaulin covers the structure overnight.

Day 2: Insulation and Outer Skin

• 08:00–10:00: PIR insulation panels (100-120mm) installed between rafters.
• 10:00–11:00: Foil reflective sheet stapled. Breather membrane laid over.
• 11:00–13:00: Tile battens and counter-battens fitted.
• 13:00–14:00: Lunch break.
• 14:00–17:00: Lightweight composite tiles installed on the outer skin. Roof becomes weather-tight by end of day 2.
• End of Day 2: Conservatory is weather-tight. Internal still rough but no risk of water ingress.

Day 3: Flashing, Roof Windows, Internal Boards

• 08:00–10:00: Lead flashing where roof meets house wall. Code 4 lead, factory-prepared kit.
• 10:00–12:00: Velux roof windows installed and flashed (typically 2-3 units on a 14-18m² roof).
• 12:00–13:00: Lunch break.
• 13:00–15:00: Gutter and fascia replaced. External finishes.
• 15:00–17:00: Internal plasterboard ceiling fitted to underside of insulation. Lining trims around roof windows.
• End of Day 3: Conservatory usable from this point. External finished. Internal needs plaster + paint.

Day 4: Plastering and Down-Lights

• 08:00–12:00: Plaster skim coat applied to plasterboard ceiling. Drying time built in.
• 12:00–13:00: Lunch break.
• 13:00–17:00: Down-lights wired and fitted (if specified). First coat of paint on the ceiling.
• End of Day 4: Internal looks 90% finished. Paint touch-up needed; ventilation needed for plaster to fully dry.

Day 5: Snagging and Sign-Off

• 08:00–10:00: Final paint coat. Snag list addressed (any minor finishing issues).
• 10:00–12:00: Customer walkthrough. Confirm finishes, document any remaining items.
• 12:00–15:00: Scaffolding removed. Site cleaned. Building Control sign-off (if Building Notice was submitted).
• 15:00–17:00: Final clean. Warranty paperwork issued. Final payment processed.
• End of Day 5: Project complete. Conservatory fully finished and warranty active.

Glass Roof Install Timeline (2-3 Days)

A glass conservatory roof install is significantly faster than tiled because there is no internal plasterwork. Standard schedule is 2-3 days for an Edwardian conservatory, 3-5 for Victorian or P-shape.

1. Day 1: Scaffolding goes up. Old roof stripped. Frame inspected. Ridge bar and rafters fitted.
2. Day 2: Glass panels lifted into place using suction cups (two-person job). Bead and silicone seal each panel. Lead flashing fitted. Gutter replaced if specified.
3. Day 3 (if needed): Final flashings, ridge cap, internal cleaning, and snagging.

Glass installs are weather-tight by end of day 1 (with temporary covering) and the conservatory is usable from day 2. Internal work is minimal – the existing internal frame is preserved. See our glass conservatory roof cost guide for the full breakdown.

When Installs Take Longer Than Expected

Five common factors that push install time beyond the standard schedule. All are predictable at the survey stage if the installer is thorough.

• Frame reinforcement needed: Pre-2005 frames or any frame showing sag typically need £800-£2,500 in steel reinforcement, adding 1 day to the install. Reputable installers identify this at the survey and quote accordingly.
• Bad weather: Heavy rain or strong winds delay scaffold work and outer-skin install. Most installers build 1 weather-day into a 5-day schedule. Multiple weather days push the schedule further.
• Building Control inspector unavailable: If the install requires Building Notice sign-off, the inspector visit needs to be scheduled in advance. Inspector availability can add 2-5 days to the project at the end.
• Larger conservatories (P-shape, L-shape, 20m²+): Add 1-2 days for additional ridge work, more roof windows, more plasterboard area.
• Customer-specified upgrades during install: Adding extra roof windows, changing tile colour, or specifying pine cladding mid-install adds 1-2 days. Decide everything at quote stage to avoid mid-install changes.

What You Need to Do as the Homeowner

Six things you need to handle as the homeowner around the install dates. Doing these in advance avoids delays.

1. 1 week before install: Move all furniture out of the conservatory. Cover or remove anything you cannot move. Tape over light switches and sockets near the work area.
2. 3 days before install: Confirm scaffold access with neighbours if the work crosses boundary lines. Most installs in semi-detached or terraced properties need this.
3. Day 1 morning: Be home for the installer arrival to confirm scope and answer access questions.
4. Days 2-4: Stay accessible by phone for any decisions (e.g. fitting alternative tile colour if the spec is unavailable, confirming roof window position).
5. Day 5 (final day): Be home for the customer walkthrough and snag-list documentation. Do not pay the final balance until the snag list is agreed in writing.
6. 2 weeks after install: Ventilate well to clear plaster smell. Check for any minor settling cracks (cosmetic, easy to touch up). Register the warranty with the manufacturer if your installer has not already done so.

Best Time of Year to Schedule

The best months for conservatory roof replacement in the UK are April, May, September, and October. These months balance reasonable weather for outdoor work, manageable installer demand, and sensible plaster drying conditions. Peak summer (June-August) and winter (November-February) both have drawbacks.

• April-May: Best window. Weather usually settled, installer schedules less crammed than summer, plaster dries well.
• September-October: Second-best window. Same advantages as April-May plus you have the new roof in place before winter heat loss starts to matter.
• June-August: Peak summer demand. Installer schedules often booked 8-10 weeks out. Internal heat from plaster drying can be uncomfortable in hot weather.
• November-February: Off-peak with shorter lead times but weather risks delay outdoor work. Plaster takes longer to dry. Acceptable for glass installs (which are faster) but harder for tiled.
• March: Variable – some installers offer winter discounts that carry over but weather is still unpredictable.

If you are flexible on timing, book in February-March for an April-May install (lead times shorter, prices often 5-10% better). If you must install in summer, accept that lead times stretch to 8-10 weeks and book early.

Our Verdict

For most UK homeowners replacing a conservatory roof in 2026, plan for 6–10 weeks from enquiry to finished install, with 2–7 days of actual on-site work depending on roof type. Tiled installs take 4–7 days; glass installs take 2–3 days. The longest delay is manufacturer prefabrication at 3–6 weeks. Schedule for April-May or September-October if possible.

The biggest practical mistake we see is homeowners not preparing the conservatory before install day – furniture not moved, neighbour access not confirmed, expectations not set. The install itself is straightforward when the homeowner has handled their side. Be home for day 1 and the final walkthrough; the rest of the project runs without you needing to be present. See our best conservatory roof companies guide for installer shortlist or our cost breakdown for the budget.

Last updated: May 2026. Timeline figures verified against three approved-installer schedules (Guardian, LivinROOF, Equinox dealers) and interviews with five customers who completed installs in 2024-2025. Lead times based on May 2026 manufacturer pipelines.

Laura Bennet

Home Energy & Sustainability Editor

Laura leads coverage on home energy, heating, and sustainable living. With over 12 years in the UK energy sector, she writes about boilers, solar panels, insulation, and eco-friendly upgrades that reduce household costs.

Reviewed by

Tom Reynolds

Business Energy Specialist