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About Thermarex
Built on a decade of solving sludge — one plant at a time.
Our Mission

To make industrial sludge management efficient, compliant, and economically viable by engineering the right solution for every client, every site, every feedstock. Not just equipment. Measurable

outcomes.

Our Vision

To be the most trusted sludge drying partner across Asia and beyond — recognised for engineering quality and long-term reliability. An India where no industrial sludge goes untreated. Where every tonne is dried, composted, or recovered never landfilled.

Core values
Excellence
We engineer to a standard we're comfortable standing next to five years after commissioning not just at handover.
Honesty
We tell clients when a technology doesn't fit their situation even if it costs us the sale.
Ingenuity
Sludge is never the same twice. We treat every project as a problem to solve, not a product to sell.
Sustainability
We measure success by how much waste stays out of landfill not how many plants we've installed.
Leadership team
Harshad Fatehpuria
Chief Executive Officer

Harshad has led Thermarex since 2015 from its first solar dryer installation to its position today as India’s most experienced sludge drying company. With a decade in industrial drying, he has delivered projects across private industry and government bodies alike. He is typically the first on site and the last to sign off commissioning. His core belief: no two sludge problems are alike, so no two solutions should be either. 

Kartik Fatehpuria
Chief Financial Officer

With 20+ years in process design, Kartik ensures every Thermarex system is not only technically sound but financially viable over its full operating life. He leads feasibility analysis, process flow engineering, and techno-economic evaluation for every major project. His whole-system perspective from incoming feedstock to dried output disposal cost is why Thermarex’s ROI projections hold up in the field. 

Sakshi Garg
Head of Communications & Regulatory Affairs

Sakshi combines 7 years of professional writing experience with deep knowledge of India’s environmental policy landscape, built through 4 years of civil services preparation covering environmental governance, CPCB frameworks, and regulatory administration. At Thermarex, she leads client communication, content, and regulatory engagement ensuring proposals are as precise as the engineering behind them. 

Infrastructure
15,000 sq ft
Manufacturing Facility
Surat, Gujarat. In-house fabrication in structural steel and SS304/SS316. All major components built and QC-inspected on-site before dispatch.
3D CAD/CAM
Engineering Design Studio
Full 3D modelling, P&ID development, and structural simulation. Every project starts as a complete digital model before production begins.
ISO Certified
Quality Assurance Lab
ISO 9001:2015 QMS covering design through commissioning. Material testing and factory acceptance testing at every production stage.
Pan India
Project Sites
Dedicated installation teams across Gujarat, Maharashtra, Tamil Nadu, and beyond. Critical commissioning is handled in-house — never subcontracted.
Our process

First Contact & Discovery

We study your feedstock, site layout, energy sources, space, and compliance requirements. Sludge samples collected for lab analysis where needed. No recommendation made until we have the full picture. 

Engineering Design

P&IDs, 3D CAD, structural calculations, equipment sizing, and techno-economic analysis — all built around your specific site. Every design is unique. 

Technical Submission

A detailed engineering document — not a brochure — covering system design, material specs, performance guarantees, and timeline. Client sign-off before production begins. 

Manufacturing & QC

In-house fabrication at our Surat facility under ISO 9001:2015 protocols. Factory acceptance testing completed before dispatch. Full material traceability maintained throughout.  

Installation & Commissioning

We manage civil coordination, equipment erection, piping, electrical, and instrumentation. Handover only after the plant meets agreed performance targets under actual operating conditions. 

Post-Commissioning Support

Operator training, spare parts supply, and Annual Maintenance Contracts (AMC). We stay accountable after handover — because a plant that underperforms in year three is still our problem. 

Certifications
Every Thermarex system is designed and built against internationally recognised quality and safety standards — independently audited, not self-declared.
ISO 9001:2015

International quality management standard covering our full process design, manufacturing, installation, and service. Independently audited annually.

MSME Registered

Registered with India’s Ministry of MSME enabling eligibility for government tenders and public sector procurement.

Startup India

Government of India recognition for innovation in industrial environmental engineering and sustainable sludge management technology.