How Long Does Pergola Installation Take?.

Quick answer: on-site work usually takes 1–5 days

Allow around 1–2 days for a straightforward timber or fixed-roof pergola, 2–3 days for a standard louvered aluminium system, and 3–5 days for a larger motorised pergola with lighting, drainage or side screens. These are planning ranges, not guarantees: size, foundations, access, weather and the number of installers all affect the programme.

Total project time is longer than installation time

The days spent erecting the pergola are only the final site phase. A surveyed, made-to-measure project commonly takes 4–10 weeks from order to completion. Stock self-assembly products may dispatch much sooner, while bespoke colours, oversized spans, glazing or imported components can extend the schedule. Ask for separate survey, manufacture, groundwork and installation dates.

Stage 1: quotation and site survey

The installer needs enough information to assess likely size, access, position and budget before surveying. The site survey confirms levels, dimensions, door and window clearances, the existing surface, fixing points, drainage and safe electrical routes. Some UK suppliers indicate survey appointments around one to two weeks after sign-off, although availability varies.

Stage 2: design approval and manufacture

Check the final dimensions, post positions, roof operation, colour, drainage outlets, controls and optional sides before approving the order. Standard stock products can move quickly, but made-to-measure aluminium systems are manufactured or prepared after approval. Changes made after sign-off may restart part of the lead time or incur additional cost.

Stage 3: foundations and preparation

Foundation work may happen before the pergola team arrives or form part of the installation programme. Existing concrete can be quick when it is level and structurally suitable. Porcelain paving, decking, slopes, soft ground and hidden drainage can require pads, reinforcement or remedial work. Concrete may also need curing time before the frame is loaded.

Stage 4: frame and roof installation

The team sets out the post positions, erects and levels the frame, fits the roof and anchors the structure. Louvre systems need accurate alignment so blades operate correctly and water reaches the gutters. Wall-mounted pergolas also require careful flashing, fixing and coordination with doors, windows and the house rainwater system.

Stage 5: electrics, screens and commissioning

Motorised roofs, lighting, heaters, rain sensors and powered blinds add installation and testing time. Side screens or sliding glazing are often fitted after the main structure is level. At handover, controls, drainage and moving parts should be tested, care instructions explained and warranty documents supplied.

What commonly delays a pergola installation?

Typical causes include late design changes, unsuitable foundations, restricted access, missing components, custom finishes, electrical work that was not planned, poor weather and peak-season scheduling. Planning or listed-building requirements can delay ordering as well. Resolve the specification and permissions before manufacture rather than relying on the short on-site duration.

How to keep the programme on track

Send clear site and access photographs early, disclose paving or decking construction where known, agree who handles foundations and electrics, and approve drawings promptly. Ask the installer to distinguish estimated lead time from confirmed installation dates. Avoid arranging landscaping, events or furniture delivery until the structure has been installed and handed over.