How do you check service penetrations competency in Qardho?

A bidder can claim service penetrations competency in Qardho by writing one line in a tender. That line is not evidence. Ask instead for three things: the sealing method statement, the product data sheet for the sealant or fire-stop used, and the name of the person who will install and inspect each sleeve, duct and pipe opening. If those three cannot be produced before award, the claim is unverified.

What does the gap look like on a Qardho site?

It shows at the opening itself. A pipe passes through a block wall or a slab, and nobody records how the annular space was closed. The gap opens because the tender only priced the pipe, not the penetration. Concrete, blockwork, cable trays, water pipes and drainage all cross the same walls, so each crossing needs a decision on sleeve type, sealant, backing material and fire rating before the wall is finished. When that decision is left to the installer on the day, the result can be a foam fill, a mortar patch or nothing at all. Ask the municipal engineer's office which drawings or permits it holds for the building, then compare the sleeve schedule on site against those drawings. A missing sleeve schedule is the first sign that competency was never tested.

Why do unsealed openings matter in Qardho?

Water, dust, smoke and pests move through them. In a hot, dry inland town, a service opening that is not sealed can let wind-blown dust into a room and let water track along a pipe during Gu or Deyr rain. In a fire, an unsealed penetration through a fire-rated wall or floor can let smoke and heat pass into the next compartment, which defeats the compartment line. Evidence is what separates a real claim from a guess. Ask for product labels showing the manufacturer's fire rating and the substrate it suits, and ask for the method statement that says how deep the seal goes and what backing material sits behind it. Confirm those limits against the project's specification or engineer, because the required rating depends on the wall or floor being penetrated, not on a general rule.

How do you verify the claim before award?

Walk a recent job. Ask the bidder to show a completed building where the same crew sealed services, then look at three openings: one in a wet area, one in a fire-rated wall and one on a roof or slab. Look for a continuous seal, a label or tag on the penetration, and an inspection record with a date and a signature. Then check the paperwork trail: the sleeve schedule, the product data sheets, the installer's name and the supervisor's sign-off. A crew that cannot produce these on a recent job is unlikely to produce them on yours. Where two bidders look similar, the difference often sits in the record keeping, not the price. Ask each bidder for written quotes that list the sealing products by name, and ask your engineer to confirm the method against the specification.

What to do next

Before award, send each bidder a written request for the sleeve schedule, the sealing method statement with product data sheets, and one reference building where the same crew sealed services. Give a deadline for the reply. Bidders who cannot answer by that deadline are telling you the claim was never backed by records. Keep the replies in the tender file so the decision is documented.