# Fit-Out MEP Coordination

> Fit-out MEP coordination is the adaptation of HVAC, electrical, lighting, plumbing, firefighting, low voltage and networking services to an office's actual layout. Base-build services assume open plan, so each cabin or meeting room means relocating sprinklers and detectors, rezoning and rebalancing the HVAC, and keeping a return air path.

## What we deliver

**HVAC, electrical, plumbing, firefighting, low voltage and networking**
coordinated into the fit-out — designed against the actual layout rather than
inherited from the base build and hoped to still work.

This is the package that decides whether a finished office is comfortable. It is
also where the majority of fit-out delays and post-handover complaints originate,
because it sits at the interface between trades that are usually contracted
separately.

## What changes when a floor is subdivided

| Base build assumes | Your layout does | Consequence |
| --- | --- | --- |
| Open plan | Cabins and meeting rooms | Sprinkler heads relocated per enclosure |
| Even cooling load | Rooms with different occupancy | HVAC zoning and rebalancing |
| Free return air path | Walls to slab | Transfer grilles or ducted return |
| Uniform lighting grid | Task-specific zones | Circuits and controls redesigned |
| Generic small power | Desk and equipment positions | Floor boxes and containment reset |
| Open detection coverage | Enclosed rooms | Detectors added per compartment |

## Scope of works

| Discipline | What we deliver |
| --- | --- |
| HVAC | Zoning, ducting, diffusers, VAV, rebalancing and commissioning |
| Electrical | DB, circuits, small power, containment, floor boxes |
| Lighting | Layout, fittings, controls, emergency lighting |
| Plumbing | Pantry, washroom and wet area services |
| Firefighting | Sprinkler relocation, detection, alarm coverage |
| Low voltage | Access control, CCTV, PA, BMS interfaces |
| Networking | Structured cabling, racks, outlets |

## Where projects go wrong

- **HVAC never rebalanced after subdivision.** The single most common cause of
  comfort complaints in a new office.
- **Return air path blocked by partitions to slab.** Supply is fine, return is
  not, and the room feels stuffy despite cold air arriving.
- **Sprinkler coverage not reassessed.** Every enclosed room needs coverage in
  its own right under NBC 2016 Part 4.
- **Detection coverage missed in new rooms.** Compartments created by the
  fit-out need their own detection.
- **Containment undersized.** Data cabling grows; a tray sized exactly for
  day-one count means the next change is a rebuild.

## Why Hagerstone

**Interiors and MEP under one contract.** This is the interface where fit-outs
fail, and we remove it rather than manage it — MEP, PEB, interiors, facade and
civil are delivered as a single integrated scope.

**Trades in-house**: 15 HVAC, 15 electricians, 15 plumbers, 15 fitters, 15
technicians and a 35-member firefighting team, with a 53-member site team.

**79+ quality checkpoints** under ISO 9001 / 14001 / 45001, 60-day delivery model
with a 5-year warranty.

## Standards referenced

Detection, suppression and compartmentation under **NBC 2016, Part 4**. HVAC and
lighting energy performance under **ECBC 2017**. Interior illumination under
**IS 3646**.

## Frequently asked questions

### Why does a Cat B fit-out need so much MEP work if the floor already has services?

Because the landlord's Cat A was designed for an unknown tenant and assumes open plan. The moment you add cabins and meeting rooms, that assumption breaks — sprinkler heads end up on the wrong side of a wall, a diffuser serves two rooms with different loads, and the return air path is blocked. Roughly speaking, every partition you draw creates MEP rework behind it.

### What is the most common MEP mistake on a fit-out?

Not rebalancing the HVAC after the layout changes. The system was commissioned for an open floor; once it is subdivided, some rooms are cold and others are stuffy, and occupants complain from week one. Rebalancing is a small item if it is in the scope and an awkward retrofit if it is not.

### Who is responsible when the fit-out MEP does not work?

That is exactly the problem with splitting the packages. When the interior contractor and the MEP contractor are separate, a blocked return air path is the ceiling contractor's fault to the MEP contractor and vice versa, and the client sits in the middle. Under a single contract there is one answer, which is why we deliver interiors and MEP as one scope.

## Sources

- [NBC 2016, Part 4](https://www.bis.gov.in/standards/national-building-code/?lang=en) — Fire and life safety — detection and suppression
- [ECBC 2017](https://beeindia.gov.in/) — HVAC and lighting
- [IS 3646](https://standards.bis.gov.in/website/published-standards/department-wise) — Interior illumination

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Source: https://hagerstone.com/services/interior-fit-out/fit-out-mep-coordination