Window surveys for estates and major projects
Every window on record before the works are scoped, with the asset register, condition schedule and repair-or-replace strategy that budgeting, consultation and tender can all run from.

For estates, institutions and managing agents we survey every window, door and shutter in scope onto a coded register, grade each one, and set out a repair, part-renew or replace strategy with the glazing specification to match. The result is a document leaseholders, contractors and conservation officers can all work from. Most mandates start with a representative sample survey.
- Scope
- Every opening in scope
- Output
- Register, schedule, strategy
- Typical start
- Representative sample survey
- Fee
- Quoted per project
What is a window survey for an estate or a major project?
A window survey for an estate or a major project is a full record of every window, door and shutter across the site, with each opening coded by building, floor and elevation and graded by urgency, so that the work can be planned in stages. It is usually commissioned before works are scoped, so that the budget, the leaseholder consultation, any consent application and the tender all run from the same document rather than from three different counts.
What is included
- A representative sample survey to set scope and budget
- A window asset register coded by block, floor and elevation
- A condition schedule with a priority grade for every opening
- A repair, part-renew or replace strategy with glazing specification
- A phased capital plan and consent strategy
- A tender-ready specification, tender return review and completion record



Asset registers, condition schedules and repair-or-replace strategy for estates, institutions and managing agents.
What happens after the report?
The register becomes the reference for everything that follows, so the budget, the leaseholder consultation, any consent application and the tender all run from the same numbered record, and the urgency grades let the work be phased sensibly across budget years. We remain on hand to answer questions from contractors and officers as the programme moves forward.
Common questions
Where does a large project usually start?
Usually with a representative sample survey, which looks at enough openings across every window type and exposure to establish the pattern of condition and set the scope and budget, before a full register is commissioned.
Can the work be phased across budget years?
Yes, and for most estates that is the main reason for commissioning the survey, because the urgency grades turn one large figure into a programme that can be staged sensibly over several years.
Do you produce tender-ready specifications?
Yes, including the glazing specification where replacement is recommended, so that a contractor can price directly from the report without having to interpret it first.
Will the report support a consent application?
Yes. Where the openings are in a listed building or a conservation area, the findings are written so that a planning authority can rely on them, and the photographs carry the same codes as the schedule.
Is the fee fixed before you start?
Yes, every project is quoted in writing on the number of openings, the access and the location, and nothing begins until that is agreed.
Discuss a major project
Estates, managing agents and contractors. We reply within one working day.
Discuss a major project- Practice
- Heritage Window Consultants Ltd
- Address
- London N1
- Enquiries
- 020 7164 6305