What to Expect During the Conservatory Roof Replacement Process

A roof replacement has several stages, but booking lead time and on-site installation time are not the same thing. We fit SupaLite warm roofs across Plymouth, Devon and Cornwall; most roof installations are described as 2–4 days, with the schedule confirmed for your roof at survey. Ordering, approvals, plaster drying and any separately agreed work can take longer.

Before booking: survey, design and quote

Tell us the roof shape, approximate floor dimensions, current covering and the problems you want to solve. Photographs from inside and ground level help; do not climb onto the roof to measure it. At the survey we assess the structure, access, wall junction and frame condition, then agree tiles, roof windows and internal finish.

Use the 2026 cost guide and calculator for preparation, not as a substitute for a survey. Ask whether scaffolding, old-roof disposal, ceiling finish, flashing, gutters and approvals are included, and whether frame work is needed separately.

The lead-up: approvals, ordering and access

Once you accept the written quote, the roof specification, building control process and installation date are arranged. We cannot promise one universal order-to-install lead time: availability, approvals, the chosen specification and site conditions vary. Confirm the current lead time before making plans around the room.

• Clear furniture and belongings from the agreed work area.
• Agree access, parking and where materials can be stored.
• Tell us about planned door, heating or frame changes.
• Ask who will arrange inspections and how completion paperwork is supplied.
• Confirm payment stages in writing before work starts.

Installation: the usual sequence

Protection, removal and structural preparation

The work area is protected and access equipment arranged. The old roof is removed and the existing supports checked against the agreed design. Any additional work is discussed rather than treated as an unpriced surprise.

The engineered roof and insulation

The SupaLite structure, insulation and weathering layers are fitted. Weather protection and access restrictions depend on the stage of work and conditions; follow the crew's advice rather than assuming the room can be occupied during installation.

Tiles, roof windows, flashing and drainage

Lightweight tiles and any specified roof windows are fitted, with flashing at the house wall and guttering/downpipes. The exact sequence can vary by shape and site.

Internal finish and handover

The ceiling is plastered and agreed electrical work completed. The plastered finish is ready to decorate once sufficiently dry; painting is not automatically included. We clean down, review the completed work with you and handle Building Regulations sign-off.

After installation: drying, documents and care

Ask when it is appropriate to decorate, keep ventilation suitable during drying, and follow the supplied care guidance. Keep the fixed quote, completion certificate and guarantee documents together. A manufacturer's tile guarantee and an insurance-backed workmanship guarantee have different terms; they are not a promise that the whole roof needs no maintenance.

For the approval details, read Building Regulations and planning guidance. If the existing room is cold or damp, our insulation options guide explains what to assess before booking.

Book a free survey

Send your measurements and photos with an enquiry. We cover Plymouth, Devon and Cornwall and confirm the proposed specification, fixed price and schedule before you decide.