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Office HVAC and ventilation planning: a complete guide

14 June 2026 by
Renu Maharshi


Summer in Jaipur easily breaks 45 degrees. Your air conditioning is not an afterthought. You will lose staff if your office feels like an oven. Most contractors leave cooling until the walls are already up. That is a massive mistake. Proper office HVAC and ventilation planning dictates your entire ceiling layout and electrical grid. 

Here is exactly how we plan commercial cooling from day one.


In this article


  1. Map your cooling zones before building walls
  2. Choose the right AC system for your floor plate
  3. Coordinate ducting with your false ceiling
  4. Bring fresh air inside to stop afternoon fatigue
  5. How glass partitions change your heat load
  6. Handle server room and pantry exhaust
  7. Calculate the electrical load early
  8. Why detached teams ruin office HVAC and ventilation planning
  9. Frequently asked questions
  10. Ready to plan your office cooling in Jaipur?

Map your cooling zones before building walls


Open floors need different cooling than private cabins. Fifty people typing at desks generate massive body heat. A single executive sitting in a glass cabin does not.

If you put them on the same thermostat, someone is always uncomfortable. We map thermal zones directly on the floor plan before we build any partitions. You need localized controls for different teams.

For the 16,000 sq. ft. LMDmax Corp office in Mansarovar, we separated the open workstation floor from the boardroom. The boardroom stays off when empty to save power. When twenty people walk in for a meeting, a dedicated unit cools it down in minutes.


Choose the right AC system for your floor plate


Window units look terrible in a corporate space. They are noisy and inefficient. You have three real options for commercial interior execution.

Split ACs work for small private cabins or independent rooms. Cassette units mount flush in your false ceiling and push air in four directions. They fit perfectly above a cluster of our UO-WS106 sharing workstations.

For anything over 5,000 sq. ft., you need a VRV or VRF system. One large outdoor unit drives multiple indoor units. It saves massive electrical costs over time. We install the heavy copper piping for these systems during the initial civil phase.

System typeBest use caseUpfront costRunning efficiency
Split ACServer rooms, single cabinsLowModerate
Cassette ACOpen floors under 3,000 sq ftMediumGood
VRF/VRVEntire corporate floor platesHighExcellent


Coordinate ducting with your false ceiling


Ducts take up physical space. A bare concrete slab might sit at 11 feet. Dropping heavy HVAC ducts reduces your ceiling height by up to two feet.

Pro tip: Finalize your exact AC tonnage and duct routing before ordering your gypsum ceiling grid.

We plan the ceiling and HVAC together. For Celebal Technologies in Jaipur, we routed the heavy ducting over the main corridors. We dropped the ceiling height there. This kept the ceiling high and airy over the actual desks. If you install the ceiling grid first, the AC technicians will cut messy holes in it later.


Bring fresh air inside to stop afternoon fatigue


Air conditioning only recirculates old air. It gets stale. Carbon dioxide builds up when fifty people breathe in a sealed room for eight hours.

Your staff gets tired and slow by 3 PM. You need a Treated Fresh Air (TFA) unit.

Ventilation forces outside air into the building. It filters the dust and cools it slightly before mixing it with your AC air. It also exhausts the stale air outside. Do not skip this step to save a few rupees. Fresh air directly impacts how much work your team gets done.


How glass partitions change your heat load


Glass traps heat. We use commercial-grade glass partitions to build executive cabins because they look incredibly sharp. But a south-facing glass cabin acts like a greenhouse.

You have to adjust the AC tonnage for rooms with heavy glass exposure. A 100 sq. ft. room with solid drywall might need a 1-ton AC. That same room built entirely of glass facing the afternoon sun needs 1.5 tons.

We calculate these heat loads specifically for Rajasthan's climate. We also recommend pairing the glass with blackout roller blinds. This gives your executives privacy and stops the sun from overwhelming the cooling system.


Handle server room and pantry exhaust


Servers run hot all day and all night. They need a dedicated split AC. Do not connect your server rack to the central VRV system. If you shut down the central plant on a Sunday, your servers will melt.

Your pantry needs heavy exhaust fans. Nobody wants the smell of lunch floating into the reception area. We route strong exhaust ducting for cafeterias during the initial civil phase. We push that air completely out of the building.

We treat washroom ventilation with the same priority. A poorly ventilated washroom ruins the perception of your entire office.


Calculate the electrical load early


HVAC consumes the most power in your entire office. You cannot guess the required electrical load.

We calculate the exact tonnage based on your floor area, glass exposure, and headcount. We handled this complex calculation for Capri Loans during their 5,800 sq. ft. buildout on Sirsi Road.

We pulled the heavy electrical lines from the main distribution board before the ceiling closed. Retrofitting heavy cables later means destroying your finished walls. Our workstations, like the UO-WS105 units, include built-in 150mm wire management raceways. We route the localized power cleanly, but the heavy AC loads stay hidden in the ceiling grid.


Why detached teams ruin office HVAC and ventilation planning


You hire an AC vendor. You hire a separate ceiling contractor. The AC team cuts a hole in the wrong spot. The ceiling contractor refuses to fix it. The project stalls while they point fingers at each other.

A single point of accountability solves this. We handle turnkey office interiors. We run the HVAC, electrical, and false ceiling teams under one single contract.

Over our 9 years in business, we have delivered 17 Lakh sq. ft. of commercial space. We know exactly how these trades interface. Our Project Managers ensure the AC copper piping is pressure-tested before the painter applies a single coat of primer.


Frequently asked questions


Here are some common questions we get about cooling commercial spaces in Rajasthan.

What is the standard AC calculation for an office?

A general rule in Jaipur is 1 ton of cooling for every 100 to 120 square feet. This changes based on how many people sit in the room and how much sunlight hits the windows.

How much does office interior design cost in Jaipur?

The cost ranges from INR 1,500 to INR 3,500 per square foot. Your choice of HVAC system plays a massive role in this final number. A central VRF system costs more upfront but saves money on your monthly electricity bill.

Do you manufacture the office furniture too?

Yes. We build all our modular office furniture at our in-house facility

, Jaipur. This lets us design desks that perfectly fit your cooled zones.

How long does a complete office fit-out take?

Most projects take between 1 to 3 months. We map the entire HVAC installation timeline before we start the civil work so there are no surprises.


Ready to plan your office cooling in Jaipur?


Do not let bad air conditioning ruin your beautiful new workspace. We build environments that actually work for your team. Office HVAC and ventilation planning is the invisible foundation of a good company culture. Every finished project comes with a free initial consultation and 3 years of post-handover support. 

Drop us a line on our Contact Us page to schedule a site visit and evaluate your floor plan.


About the author

Renu Maharshi- Head of Business Development, Urban Office

Renu Maharshi

Head of Business Development

Renu has 10+ years in corporate business development helping Jaipur businesses across IT, finance, and corporate plan offices that genuinely work for their teams. At Urban Office - with 300+ completed projects across Jaipur, Ajmer, Alwar, and Sikar, she is the first person you speak to, and the one who makes sure the process is easy from day one. 

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