Underground Utility Mapping for Factories and Plants

Why does underground utility mapping for factories matter before any civil work?

Because most factories no longer know what runs under their own floor and yard. Sheds grow, transformers move and compressor lines go in at short notice, so a 1998 drawing is now a rough guide. Mapping puts every cable, pipe and drain back on paper before a JCB or core cutter goes in.

A cut HT cable can stop a production line for a whole shift. A damaged hydrant main leaves the plant short of fire cover until it is repaired. Against that risk, one day of scanning is a cost-effective line in any construction project budget.

Most calls come before a new shed, foundation or ETP. Others come from an insurer asking for a current layout, or from a buyer checking the land.

What can we trace inside a working factory?

Almost every buried service a factory relies on, under soil, paving or a concrete floor. Ground penetrating radar (GPR) treats metallic and non-metallic objects alike. Its transmitter pushes short electromagnetic waves into the yard, and each pipe or chamber bounces a return signal to the receiving antenna.

Each traced service becomes a separate layer in the final drawing – see CAD and GIS utility mapping for how layers, colours and depths are shown.

Which industrial belts do we cover from Faridabad?

Our office is in Sector 41, Faridabad, and our staff live across the NCR belts. A factory job can open on confirmation day and seldom waits beyond the next working day. Each belt has its own habits underground.

• Faridabad (Mathura Road, NIT and the industrial sectors): many units are decades old, with several owners and extensions. Expect undocumented cables between sheds and old drains under newer floors.
• IMT Manesar (Gurugram district): a planned HSIIDC estate with an auto component focus. Plots are regular, but heavy-power units have dense cable routes and large earthing grids.
• Bawal (Rewari district, on the Delhi–Jaipur highway): newer plants on open land with space kept for expansion. Mapping before phase two costs less than mapping after it.
• Sahibabad (Ghaziabad, Uttar Pradesh): an older, packed industrial area where a scan works around parked trucks, stacked material and narrow lanes.

In every belt, the common surprise is a line entering the plot from a neighbour or the estate. Estate water pipes and power cables often hug the frontage wall, so on request we trace a few metres past your boundary.

Factories in other states get the same method. An engineer who lives in that city leads the job and can begin at once, or one business day later at the outside.

How do we deal with cables under the shop floor?

We scan the slab first, then the ground below it, because a factory floor hides two layers of risk. The slab holds rebar, conduits and sometimes tendons. Under it run the cables and pipes that feed each machine.

Before anchor bolts, core cuts or floor trenches, a slab scan marks steel and conduits on the surface. The driller can then shift each hole by a few centimetres and miss them. Higher frequencies give the high resolution needed inside concrete. Our concrete scanning page explains what radar can and cannot see inside concrete. For the services below the slab, the locator and radar results are tied together, and the underground cable detection details page covers how live and dead cables are told apart.

Tell us the exact spots you plan to drill or cut. Thirty marked points scan faster than a sweep of the whole bay.

What does a typical survey day in a running plant look like?

We fit around your shifts and safety rules, and most factory jobs under two acres finish in one field day. A typical weekday runs like this:

1. Gate and safety briefing: PPE, entry passes, the safety officer and a panel electrician.
2. Walk-over: we note transformers, hydrants, manholes and any old drawing, and agree the limits.
3. Locator work: live cables and metal pipes are traced while the plant runs under load.
4. Radar grid: lines across yard and sheds pick up plastic pipes, drains and silent lines.
5. Marking: colour-coded paint or flags, so your contractor can dig the next morning. Bays that cannot be cleared are marked as not surveyed.

Underground utility mapping for factories at a glance

What does factory utility mapping cost?

Factory jobs are priced on the GPR rate per metre, and most small and mid-sized plants land on the minimum order.

• Standard GPR scan: ₹24 per metre; L-section with depth profile: ₹32 per metre.
• Minimum order: ₹50,000 within Delhi NCR, ₹1,00,000 elsewhere in India.
• Large orders: 25% off above 100 km, 40% above 500 km, 50% above 1,000 km (whole order).
• GST is extra on all rates.

Worked example: a Faridabad unit needs 1,200 metres of standard scanning around two sheds. At ₹24 per metre that is ₹28,800, so the NCR minimum of ₹50,000 plus GST applies. That minimum already covers about 2,080 metres, so adding the rest of the compound to the same visit is sensible. The GPR survey price list sets out every rate. When you are ready, get a written quote with the scope fixed on paper.

What do you get at the end?

A clear services drawing, a short report and marks on the ground. The drawing shows every traced line by type, with depth where measured and a note wherever a line could not be confirmed. The report states the method, limits and any area we could not reach.

A title block with plant name, survey date and legend lets the sheet go to an insurer or buyer on its own. When a shed or transformer changes, we update the same file, so the compound keeps one record of its underground utilities.

Frequently asked questions

Can you scan while the factory is running?

Yes. A running plant helps, because loaded cables give a stronger locator signal. We only ask for a safe working area and an escort near panels and machines.

We have an old services drawing. Is a new survey still needed?

In most cases, yes. Old drawings miss later changes and are rarely to scale. We use your drawing as a starting point and correct it on site. Our field notes on this explain what tends to go missing.

Can GPR find plastic water pipes under a factory yard?

In most NCR soils, yes, at normal service depths. Wet or clay-rich ground conditions reduce the range. In that case we note it and suggest a trial pit at critical points.

Do you also scan concrete floors before core cutting?

Yes. Slab scanning for rebar, conduits and embedded pipes is part of the same visit if you mark the drill points in advance.

How soon can a crew come to Manesar or Bawal?

Manesar and Bawal sites included, NCR work normally opens on confirmation day, with one business day as the limit.

Is the minimum order the same for every factory?

The minimum is ₹50,000 plus GST in Delhi NCR and ₹1,00,000 plus GST elsewhere in India, whatever the industry.

Written by Saniya Parveen · Technically reviewed by Rahul Rai · Updated 8 November 2026