Last updated: July 15, 2026

Installing a commercial elevator takes 4–12 months from initial design to commissioning, but that range is almost meaninglessly wide unless you understand what determines where your project sits within it. The short answer: the building structure and the permit process control the timeline more than the lift itself. The lift installation — the physical work of putting the equipment in — typically takes 8–12 weeks. Everything before and after that takes longer.

This guide breaks down each phase of a commercial lift installation, the timeframes you should plan for, and the factors that most commonly extend them.

Factors That Impact the Installation Timeline

Building Type and Age

New buildings designed with a lift shaft already incorporated are the fastest to work with. The shaft is correctly sized, the pit is formed, the overhead is specified, and there is no structural unknowns. Retrofitting a lift into an existing building adds time at every phase — the shaft may need to be formed or modified, the pit may require excavation or raising, and the structural engineer’s assessment may reveal work that was not initially scoped.

Type of Elevator System

Hydraulic lifts are typically faster to install than traction or MRL systems because their mechanical arrangement is less complex. Traction and MRL systems involve guide rail installation, rope rigging, and counterweight assembly. For most commercial buildings the MRL is the standard choice; for retrofit projects in buildings without an overhead machine room, hydraulic systems are sometimes the more practical option.

Customisation Requirements

Standard cab specifications are faster to procure and install. Bespoke interiors, custom door finishes, or non-standard dimensions involve extended lead times — typically from the manufacturer — that affect the programme independently of site work.

Permits and Regulations

In the UK, Building Control approval is required before any lift installation begins. Depending on the local authority and the complexity of the project, this phase commonly takes 4–8 weeks. Delays here push the entire programme back. On projects where permits are submitted in parallel with design, the impact is reduced; on projects where this is left until design is complete, it adds avoidable delay.

Worksite Preparation

If the shaft, pit, and overhead are all in place before the lift team arrives, site preparation is minimal. If structural work is needed first — which it frequently is in retrofit projects — the lift team cannot start until that work is complete and signed off.

Steps Involved in Installing a Commercial Elevator

Step 1 — Design and Planning (typically 2–4 weeks)

Detailed technical specifications are produced for the lift and shaft. Type of system, load capacity, car dimensions, door configuration, and control specification are finalised. For retrofit projects, a structural engineer’s assessment of the proposed shaft location happens at this stage.

Step 2 — Permits and Approval (typically 4–8 weeks)

Building Control submission, LOLER pre-installation notification, and any fire safety sign-off. On new builds this phase often runs in parallel with site preparation, reducing the overall programme. On retrofit projects it must typically be sequential.

Step 3 — Preparing the Site (typically 4–8 weeks)

Shaft construction or modification, pit formation, overhead preparation, and machine room work where required. This phase has the highest variability — structural surprises in older buildings are common.

Step 4 — Installing Elevator Components (typically 4–6 weeks)

Guide rail installation, machine equipment, door frames and landing doors, cab installation. For hydraulic systems this phase is typically shorter; for MRL and traction systems, rope rigging and counterweight work add time.

Step 5 — Electrical and Safety Systems (typically 2–4 weeks)

Control panel installation, wiring, safety devices, emergency communication systems, and lighting. For buildings requiring generator backup or integration with existing fire systems, this phase extends.

Step 6 — Testing and Inspection (typically 2–3 weeks)

Systematic test programme covering load capacity, safety devices, levelling, door operation, and emergency systems. A LOLER first examination by an independent inspection body is required before the lift enters service. Inspection bodies typically have 3–5 working day turnarounds, but this must be built into the programme.

Typical Timeframe for Commercial Elevator Installation

For a new build with a pre-formed shaft, the realistic programme from design to commissioning is 4–6 months. For a retrofit into an existing building, 6–12 months is a more honest estimate — and projects with significant structural work or complex permit requirements can run longer. The 4–12 month range in most published guides captures the extremes; most straightforward commercial projects land in the 5–8 month window.

Tips for a Smooth Installation

Plan the permit process before completing design, not after. Submit to Building Control as early as possible — this phase runs on the authority’s timeline, not yours. Ensure the shaft, pit, and overhead are fully prepared before the lift team mobilises; resequencing mid-project is expensive. Choose an installation company with direct experience of your building type — retrofit and new build are materially different projects. Account for inspection lead times at the end of the programme.

Looking for Expert Commercial Lift Installation?

Future Lift Services install commercial lifts across Essex and London, managing the full process from initial specification through installation and commissioning. Contact us today for a free, no-obligation quote.