How many days does it usually take to arrange an on-site measurement in Langfang?

Langfang is within our confirmed service area. On-site measurements are usually arranged within 1–7 days, depending on the schedule for that week. Once the time is confirmed, we will contact you by phone in advance, and on the day of the measurement our staff will arrive with all necessary tools and take a final on-site measurement. (On-site measurement is free; no measurement fee is charged.)