Concealed Work Inspection Planning Checklist

Walk the sequence of the works from the ground upwards and mark every point at which something will be covered by something else and become unreachable.

Owners find this easier than it sounds, because the question is physical rather than technical and does not require knowing what is being covered.

Start with anything below ground, since an open excavation, a drainage run or work against a foundation is visible for a short time and then not at all.

The published records describe buried work as checked after backfilling precisely because it is built early and covered quickly.

Note the points at which a barrier or control layer is installed and then covered by a finish, particularly where it continues around a corner or a junction.

Junctions between two packages are described repeatedly as the part most often left out of both, and they are only visible for a short window.

Mark the moment structure is complete but not yet enclosed, which is often the last time the frame and its connections can be seen at all.

Once a structure is clad and lined, seeing any part of it again means taking something apart.

Mark the point at which services are run but not yet boarded over, in every area where anything passes through a wall, floor or ceiling.

The position of a concealed run is the single piece of information most often wanted later and least often recorded.

A record of where a service runs is a record of what you were shown, not a guarantee of its position; treat it as an aid, not an authority.

Show your list to whoever is running the works and ask what you have missed, rather than treating your own list as complete.

People who build know where the short windows are, and they will usually add several you would never have identified.

Ask your local authority which stages they expect to be notified about and how notification is given, rather than assuming whoever is building has arranged it.

Arrangements vary by location and by project, and the responsibility for notifying is not always where an owner assumes.

What has to be notified, and by whom, is confirmed with your local authority; nothing here describes what applies to your project.

If a warranty or guarantee is involved, ask the provider which stages their inspector attends, what notice they need, and what happens if a stage is missed.

Warranty inspection regimes are set by the provider and are commonly stricter about notice than anything else on the project.

Ask each appointed consultant whether they want to see any stage before it is covered, and whether their appointment actually includes attending.

A consultant may want to see something they are not engaged to attend, and that distinction is worth surfacing early.

Ask whether any specialist supplier requires a stage to be seen or recorded before a further layer goes on, as a condition of what they are offering.

Product literature sometimes governs what has to happen before a following layer is applied, and it is easy for that to be overlooked.

Check whether an insurer, lender or funder has any expectation about stages, and ask them directly rather than inferring it from paperwork.

Funding and insurance arrangements occasionally reference stages, and the reference is usually buried in documents owners skim.

Decide which moments you want to see yourself, and be honest about whether you will be able to attend at short notice.

An owner who cannot attend is better served by a good photographic arrangement than by an intention to be there.

Ask each party who wants to see a stage how much notice they need, and write the answers side by side so the longest one is visible.

The party needing the most notice sets the practical notice period for everybody, and that is only apparent when the answers sit together.

Agree who is responsible for saying that a stage is approaching, and confirm that they know they are responsible rather than assuming it.

Notice not given is almost never a refusal; it is usually a task nobody understood to be theirs.

Confirm the notice arrangement in writing with whoever is running the works, and ask them to confirm it back rather than treating your note as agreement.

Agree how notice reaches you, by which route, and what you do with it, since a message you see only after the event is not notice.

The route matters more than the intention, particularly for owners who are not on site during working hours.

Ask for a short forward look at each regular conversation, covering which of the listed moments are expected within the next stretch of work.

A recurring forward look converts notice from an event into a habit, which is far more reliable.

Ask what happens if a stage arrives earlier than expected, which is common when weather or sequence changes, and who decides whether to wait.

Stages arriving early are the ordinary reason a planned attendance does not happen.

Write the notice arrangement down as a single short list of party, stage and notice period, and share it with everybody named on it.

A list everybody has seen is much harder to forget than an arrangement held in several separate conversations.

Agree what each set of photographs should show, such as the whole area, the junction, and something in the frame that establishes where you are.

Close photographs of concealed work are frequently impossible to locate afterwards because nothing in them says where they were taken.

Agree who takes the photographs, where they are sent, and who holds the set, rather than each party keeping their own partial collection.

Scattered photographs held by several people amount to much less than one collection everybody contributes to.

Record the date and the location for each set in writing, since the information in a photograph file is easily lost when images are copied around.

A short written index is more durable than anything embedded in the image files themselves.

Where a position matters, note a measurement from something that will still exist afterwards, such as a corner or an opening rather than a temporary mark.

Positions referenced to something that is later removed cannot be used at all.

Write down what you were told at the moment, in the words used, rather than converting it into a conclusion of your own about the work.

A record of what somebody said is useful and honest; a record of what you concluded from it is neither.

Photographs and notes record what was visible; they establish nothing about whether the work is adequate, which is a matter for a suitably qualified professional.

Keep the record for each concealed moment with the project papers rather than in a phone gallery mixed with everything else.

The set is only useful if it can be found by somebody other than you, possibly years later.

Agree who decides whether work proceeds when an expected attendance cannot happen, and make sure that person knows the decision is theirs.

The default, when nobody has decided, is that the work proceeds and nobody records that anything was missed.

Ask each party in advance what record they would accept in place of attending, and write their answer against their name on your notice list.

Some parties will accept a photographic record; others will not, and finding out on the day is too late.

Whether a record is an acceptable substitute for attendance is decided by the party concerned, not by you or by whoever is building.

Record that a stage was covered without the expected attendance, with the date and the reason, even where everybody was content for it to proceed.

Missed stages are individually unremarkable and collectively significant, which is only visible if each one was noted.

Tell the party who wanted to see it that it has been covered, rather than waiting for them to discover it at a later visit.

A party told promptly can often still do something; one told late usually cannot.

Ask whether a missed stage has any consequence for a warranty, a guarantee or an approval, and get the answer from the party who holds it.

The consequence is defined by whoever set the requirement, and only they can say what follows.

Ask what would be involved if something covered had to be opened up again, so the cost of proceeding is understood rather than assumed to be nothing.

Knowing what opening up would involve is what makes a pause feel proportionate at the moment the decision is made.

Mark each moment as it passes, noting who attended and what record was taken, so the remaining list is always the live one.

A list with nothing marked off is quickly abandoned because nobody can tell what it is still asking for.

Add new moments as the works reveal them, since a change of method or a discovery on site regularly creates a cover-up nobody anticipated.

Discovered conditions frequently introduce a stage that was never in the original sequence.

When the sequence changes, check which of the remaining moments have moved, and reissue the notice list rather than assuming people will track it.

A resequenced programme moves cover-up windows silently, and the parties expecting notice have no way of knowing.

Bring the list to each regular conversation about the works and ask which of the remaining moments are now within sight.

Regular review is what keeps the list from being remembered only after a stage has passed.

Note where work has been covered without the stage appearing on your list at all, and add it retrospectively with whatever record exists.

An incomplete honest record is far more useful than a tidy one that omits what actually happened.

Assemble the photographs and notes for every concealed moment into one ordered set rather than leaving them scattered through the project file.

The set only works as a reference if it is ordered by location, which is how somebody will later come to it.

Write a short index by room or area saying what record exists for each, so a future reader does not have to open everything.

An index is what turns a large collection of images into something usable.

Note honestly where no record exists, because a gap stated plainly is far more useful than a set that appears complete and is not.

A reader who trusts an incomplete set will draw conclusions from its silence.

Ask whoever is building what as-built information they will provide, and keep your own concealed-work record alongside it rather than instead of it.

The two records answer different questions and are most useful read together.

Decide who this record is for after completion, and store it where a future occupant or professional would actually think to look.

A record only you can find provides none of the benefit it was assembled for once the property changes hands.