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Puff Panel Installation
Turnkey installation of PUF sandwich wall and roof panels with precision jointing, vapour sealing and structural anchoring.
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Insulated envelope specialists
We are Experts in Puff Panel Installation & Solutions.
Grasious Engineering Works is a specialist puff panel contractor. From a single chiller room to a 50,000 sq ft insulated roof, we engineer the thermal envelope, install it with cam-lock precision and hand it over leak-tested — so your compressors work less and your audits go smoother.
- ✓ Heat-load backed panel specification
- ✓ In-house installation crews, no sub-letting
- ✓ Live-plant execution with zero downtime
- ✓ 12-month workmanship warranty
ISO-aligned QA•
GST registered•
Safety-permit trained crews
Quick enquiry
Tell us what you're building
Two minutes now saves two weeks later. We reply with an indicative spec and budget.
Cold storage rooms•
PUF wall panels•
Insulated roofing•
Clean rooms•
Blast freezers•
Panel AMC•
Turnkey execution•
Cold storage rooms•
PUF wall panels•
Insulated roofing•
Clean rooms•
Blast freezers•
Panel AMC•
Turnkey execution•
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Projects delivered
Across 7 states since 2010
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Years on site
Panel systems is all we do
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Repeat clients
Food, pharma, logistics, retail
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Sq ft installed
Wall, roof and ceiling area
What we do
One contractor for the entire insulated envelope
Panels, doors, flooring, trims, sealing and handover documentation under a single scope — so nobody argues about who owns the joint that leaks.
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Cold Storage & Freezer Rooms
Complete cold room envelopes from +15°C ripening chambers down to −35°C blast freezers, including doors and flooring.
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Insulated Roofing Systems
Trapezoidal and standing-seam insulated roof decks that cut heat gain, condensation and running costs.
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Clean Rooms & Partitions
Modular clean-room partitions, coved skirting and flush doors for pharma, electronics and food-grade areas.
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Project Engineering & Design
Thermal load calculation, panel selection and 2D layouts before a single panel reaches your site.
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Panel Repair & AMC
Preventive maintenance, panel replacement, door servicing and 24×7 emergency repair contracts.
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24 hrs
Average turnaround from drawing to costed proposal.
How we work
A process built to remove surprises
Most panel jobs go wrong long before installation — wrong thickness, missing vapour barrier, no plan for doors. Our five-stage method fixes that on paper first.
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1
Survey & heat load
We measure the site, note access constraints and calculate the thermal load for your target temperature and ambient conditions.
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2
Specification & BOQ
Panel thickness, skin type, door schedule, trims and fixings are documented with a line-item BOQ you can compare fairly.
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3
Mobilisation
Material is staged, crews are briefed on safety permits, and a stage-wise programme is agreed with your project team.
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4
Installation & QA
Erection, cam-lock jointing, sealing and trim finishing — inspected against a written checklist at every stage.
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5
Handover & aftercare
Thermal imaging report, as-built layout, warranty documents and an optional AMC to keep performance where it started.
Recent work
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Projects that hold temperature
Cold stores, clean rooms, dairy halls and warehouse roofs — each one commissioned, measured and signed off by the client's own team.
Cold Storage
Multi-Chamber Cold Storage Facility
Hoskote, Bengaluru · 18,500 sq ft
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Clean Room
Pharma Clean Room Block
Peenya, Bengaluru · 9,200 sq ft
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Roofing
Insulated Warehouse Roofing
Hosur, Tamil Nadu · 52,000 sq ft
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Food Processing
Dairy Processing Hall Envelope
Mysuru, Karnataka · 14,300 sq ft
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Food Processing
QSR Central Kitchen
Whitefield, Bengaluru · 7,600 sq ft
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Cold Storage
Seafood Blast Freezer
Mangaluru, Karnataka · 6,400 sq ft
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Client voices
Judged on the second project, not the first
Over 60% of our annual volume comes from clients we have already worked with.
★★★★★
“Grasious handled a complicated four-chamber build without stopping our packhouse for a single day. The joint detailing is spotless and our chamber pull-down times beat the design figures.”
Ramesh Iyer
Plant Head, Fresh Harvest Agro
★★★★★
“Our clean room cleared validation on the first attempt. Their team understood pressure differentials and coving requirements better than contractors twice their size.”
Dr. Anitha Rao
QA Director, Nirvana Lifesciences
★★★★★
“52,000 sq ft of roofing delivered ahead of schedule and leak-free through two monsoons. Shed temperature dropped noticeably and our energy bill followed.”
Vikram Shetty
Projects Manager, Sunline Logistics Park
★★★★
“Hygiene audits are stress-free now. The washdown-safe joints and stainless trims were exactly what our auditors wanted to see.”
Suresh Kumar
Operations Manager, Karnataka Dairy Foods
Before you ask
Straight answers, no sales fog
The questions clients ask us most often, answered the same way we would answer them on a site visit. More detail lives on our FAQ page.
Read all FAQsIt depends on your target internal temperature. As a rule of thumb we use 40–60mm for air-conditioned or office areas, 80–100mm for chillers around 0–4°C, and 120–150mm for freezer rooms at −18°C to −35°C. We confirm the exact figure with a heat-load calculation before quoting.
A 2,000 sq ft cold room envelope is usually erected in 7–10 working days after material delivery. Large factory roofing packages run 3–6 weeks depending on area, access and crane availability. Every quotation includes a stage-wise schedule.
Both. We supply panels from reputed Indian manufacturers with test certificates, or we install client-supplied panels at a labour-only rate with the same quality guarantee on workmanship.
We provide a 12-month workmanship warranty covering joints, sealing and fixings, plus the manufacturer warranty on the panel material itself. AMC plans extend cover beyond the first year.