In brief
- A low conduit routing bid often wins because the estimate left out bends, boxes, draw ropes and the cost of making good chases.
- The client pays twice when omitted conduit is discovered after plaster, because chasing cured walls costs more than installing before finishes.
- Ask for a conduit schedule with counts and check it against the drawings before comparing totals.
Contents
Conduit routing underbidding risks in Garowe show up when a low bid wins and the route is later found to be missing bends, boxes, draw ropes and making good. The bid looks cheap because those items were left out of the estimate, not because the work is cheaper. A client who accepts the lowest total often pays again to open finished walls.
What gets left out of a low conduit routing bid?
Most underestimated items are the small ones nobody counts. An estimator may price straight pipe by the metre and forget that a run needs bends, couplers, adaptable boxes, draw boxes and a draw rope through every length. Chasing and making good after plaster is often omitted entirely, and so is the cost of pulling cable through a route with too many tight bends. Surface runs in hot, sun-exposed conditions may need expansion fittings, a general practice point to confirm against the project's specification. Ask for the bill of quantities to show counts for bends, boxes, draw ropes and making good, not just pipe length. If those numbers are absent, the gap is in the estimate, not in the price. Confirm the project's specification requirements for conduit type and burial depth with the engineer.
How does the omitted work show up later?
Omitted work appears as damage to concealed wiring once the building is occupied. A missing draw box forces the electrician to pull cable around a tight bend, which can strip insulation and leave a hidden fault. Chases cut after plaster weaken the finish and can crack along the line of the conduit. Where conduit is buried without a draw rope, later cable replacement means breaking the wall again. Ask the supervisor to photograph the conduit route before plaster, including box positions and bend radii, and keep those records with the as-built drawings. If the route was not photographed before closing, ask for a continuity and insulation resistance test record from the electrician and compare it with the specification. Walk a recent site with the same contractor and ask to see an open conduit run.
How do you close the gap before signing?
Close the gap by making the omitted items visible in the tender. Require a conduit schedule with counts for bends, boxes, draw ropes, chases and making good, and compare those counts against the drawings. Ask two suppliers for written quotes for the conduit, boxes and draw rope so the client can see the material cost separately from labour. Check what the contract allows if counts change during construction, and agree a measured remeasure clause with the engineer before work starts. Ask the municipal engineer's office whether it holds records for the plot that affect the route, such as existing services or approved levels. Require a pre-plaster inspection by the engineer with photographic records.
What to do next
Ask the contractor for a conduit schedule with counts for bends, boxes, draw ropes and making good, then compare it line by line with the drawings. Request two written supplier quotes for the conduit materials and a pre-plaster inspection record. Do this before comparing totals, so the lowest bid is compared on the same scope.
Frequently asked questions
Why does a conduit routing bid in Garowe come in lower than others?
The estimate may have priced only straight pipe by the metre and left out bends, boxes, draw ropes, chases and making good. Ask for a schedule with counts to confirm what is included.
What test proves concealed conduit is sound before plaster?
An insulation resistance and continuity test on the installed wiring, with the result recorded against the specification, is the usual check. Ask the electrician for the record before walls are closed.
Can the client add omitted conduit items after the contract is signed?
That depends on what the contract allows for variations and remeasurement. Check the variation clause and agree the method with the engineer before extra work starts.
Local reporting: this article is written for building work in Garowe and Puntland. Ground conditions, prices and rules differ between places; confirm the details for your own site.