No reliable company will give you a final, guaranteed quotation without a home assessment. This is not a sales tactic; it is a necessity driven by precision engineering.
What Happens During the Survey
A qualified surveyor (often an engineer) will visit your home. Their objective is not merely to sell you a chair but to ascertain the technical viability of the installation.
Measuring the Rail: They will use highly accurate tools, often electronic photo-measuring devices, to map the precise path of the stairs, noting any obstacles like radiators, doorways, or banisters. For a curved staircase, this process is meticulously detailed.
Assessing Clearance: They must ensure that when the chair is parked, it does not obstruct doorways or hallways, which could be a fire risk. They also check the “headroom”—the distance between the seat and the ceiling—particularly important for taller users or those who opt for a perch seat.
Power Assessment: They will locate the nearest mains power socket, as the stairlift rail needs to be connected to the domestic electricity supply to keep the battery charged.
Controlling the Process
You should never feel rushed during this visit. Treat the surveyor as an expert consultant.
Ask for Documentation: Insist on seeing documented evidence of their measuring process, particularly for complex curved stairs.
Clarify Features: Discuss specific features, such as hinged rails (necessary if the bottom of the rail would block a door) or the colour/upholstery choices. Ensure these are itemised in the quote.
No Obligation: Clearly establish that the survey is not a contract. If a surveyor pressures you for an immediate decision, it is a red flag.