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Certified industrial & residential roofing

Roofs built to outlast the weather.

Industrial sheds, warehouse pre-engineered steel structures, premium Tata BlueScope metal roofing sheets and residential tubular trusses, engineered for cyclone-grade durability across South India.

  • Site Visit

    Within 24 Hours

  • 10-Yr Leak-Proof

    Warranty Backed

  • IS 2062 Grade

    JSW & BlueScope

Newly built industrial steel warehouse roof frame with blue Tata BlueScope metal sheets under construction in Tamil Nadu

500+

Roofs Erected

15+ Years Steel Craftsmanship

  • Metal Roofing Sheets
  • Industrial PEB Sheds
  • Leak Repair & Waterproofing
  • Steel Fabrication Trusses
  • Polycarbonate Skylights
  • 10-Year Leak-Proof Warranty
  • 500+ Completed Projects
  • Tata BlueScope & JSW Sheets
Certified welders assembling a heavy steel roof truss inside a high-ceiling fabrication shed
Roofer fixing trapezoidal Galvalume metal roofing sheets with self-drilling screws in Tamil Nadu
JJ Roofing – Steel Builder badge

Steel craftsmanship & pedigree

Built with certified steel. Honoured by master fabricators.

JJ Roofing – Steel Builder (Roofs India) is a roofing and structural-steel contractor based in Tamil Nadu. We design, fabricate and install metal roofing sheets, pre-engineered industrial sheds, residential terrace canopies, polycarbonate skylights and roof leak repairs for homes, factories and warehouses across Chennai, Coimbatore, Madurai, Tirupur and the rest of South India.

We source only from certified rolling mills: genuine Tata BlueScope Steel, JSW Colouron+ and Jindal Aluminium. Our structural welders and site engineers calculate live loads, wind deflection and dead weight on every job, so each roof is built for severe monsoons, high-heat oxidation and coastal winds.

“A roof is not merely a covering; it is the frontline shield of your home, inventory and industrial enterprise.”

— The JJ Roofing team
Completed Roofs
500+
Years Field Experience
15+
Leak-Proof Warranty
10 Yr
Districts Covered
18+

Engineered Roofing Solutions

EngineeredRoofingSystems

High-performance roofing systems designed for residential, commercial and industrial applications. Our engineered solutions deliver strength, durability and long-term protection for every structure.

  • Superior Strength & Durability
  • Custom Solutions for Every Project
  • Engineered for Harsh Conditions
  • Trusted by Builders, Contractors & Industries
Roofing professional in a hard hat and safety harness installing metal roofing sheets on a steel-framed building
Interior of an industrial steel roofing structure with columns and trusses
Successful Projects
500+
Years of Experience
15+
Quality Assurance
100%
Industries Served
18+

Our Process

How we deliverZero-DefectRoofs

From initial enquiry to final handover, we follow a structured process with quality checks at every stage to ensure long-lasting, high-performance roofing solutions.

  1. Enquiry & Consultation

    Step 1: Immediate Call & Discussion

    Connect with our roofing experts to share your requirements. We understand your space, application and budget to suggest the best solution.

    Professional black headset on a white office desk beside a laptop and a green plant
    • Expert guidance and support
    • Understand requirements
  2. Site Analysis & Measurement

    Step 2: Free Site Visit & Laser Survey

    Our team conducts a detailed site visit and laser measurement to understand dimensions, structural conditions and environmental factors for accurate design and quotation.

    Yellow laser surveying instrument on a tripod at a steel construction site
    • Precise measurements
    • Detailed site assessment
  3. Custom Engineering

    Step 3: Precision Steel Fabrication

    We design and fabricate roofing sheets, trusses and components with high precision, using quality materials and modern manufacturing processes.

    Silver corrugated metal roofing sheets stacked inside a fabrication facility
    • Custom design & fabrication
    • High-quality materials
  4. Quality Check & Warranty

    Step 4: Water Test & Long-Term Warranty

    Every installation goes through strict quality checks, including water testing, to ensure zero defects. We provide long-term warranty for complete peace of mind.

    Water droplets on a silver metal roof in soft sunlight
    • Rigorous quality testing
    • Long-term warranty support

Client experiences

Proven performance in every pour.

Manufacturing plants, logistics hubs and architectural homes protected with zero water ingress.

500+ executed projects
Industrial Shed • 38,000 Sq.Ft
“JJ Roofing executed our 38,000 sq.ft Ambattur auto parts warehouse roof on a punishing 35-day deadline. Zero water ingress during the November cyclones. Their welding and torque inspection is unmatched.”
K. SundaramDirector of Operations, Ambattur IE
Terrace Canopy
“We wanted a modern charcoal terrace roof for our bungalow in Race Course, Coimbatore. JJ Roofing came next morning for the laser survey. The finish looks like a high-end resort canopy. Highly recommended!”
R. MeenakshiArchitect & Bungalow Owner, Coimbatore
Leak Retrofit • 55,000 Sq.Ft
“Our Sriperumbudur e-commerce depot suffered severe roof gutter overflow every monsoon. JJ Roofing redesigned the valley drain channels with 1.2mm GI gutters in 4 days. Not a single drip since.”
Anandhan V.Logistics Manager, Sriperumbudur
Commercial Complex
“Genuine Tata BlueScope sheets with original barcode verification. The quotation was transparent, with breakups for steel tonnage, primer and labour. Handed over with a stamped 10-year warranty document.”
S. ThangavelComplex Secretary, Salem Junction
Direct structural desk

Planning a new roof or need urgent leak fixing?

Get structural advice, gauge estimation and a zero-obligation on-site measurement within 24 hours anywhere in South India.

Expert guidance

Frequently asked questions

Choosing roofing gauge, truss specifications and waterproofing can be daunting. Here are direct, plain answers to help you decide.

Roofing engineer inspecting structural steel truss alignment and fastener seals

10-Yr Guarantee • 24hr Inspection

Have a unique requirement?

Speak directly with our senior structural estimator to analyse load parameters.

+91 90032 91290 (Direct Line)

A complete residential terrace roof, including fabrication and installation, typically costs about ₹180 to ₹320 per sq.ft.

The price depends on three things: the steel frame (tubular pipes or heavy I-beams), the sheet brand and gauge, and the working height. Large industrial sheds are priced by structural steel weight per metric tonne plus cladding area. Our site visit and itemised estimate are free, so you see exact numbers before committing.

Use 0.45 mm to 0.50 mm Galvalume sheets for homes and terrace canopies, and 0.55 mm to 0.60 mm for factories, warehouses and coastal areas.

Both are AZ150 GSM Galvalume (Tata BlueScope Colorbond or JSW Colouron+). The thicker gauge resists strong winds, chemical fumes and heavy foot traffic during maintenance.

Light-coloured, heat-reflective colour-coated Galvalume sheets with an insulation layer underneath keep a building noticeably cooler than bare metal.

For hot industrial interiors we add turbo ventilators and, where daylight is useful, polycarbonate skylights that block harmful UV. We recommend the right combination after seeing your roof and usage during the site visit.

A standard residential terrace canopy of 1,000 to 2,500 sq.ft takes 3 to 7 working days, and an industrial shed of 10,000 to 50,000 sq.ft takes about 25 to 45 days.

Steel is fabricated in our workshop first and then assembled on site, which keeps disruption to your plant or home to a minimum.

Our written, stamped 10-year warranty covers water seepage at sheet overlaps, fastener drill points and gutter connections, plus weld-point cracking under normal weather.

If an issue appears, our team inspects and fixes it within 48 hours at no cost. The warranty applies where both steel fabrication and sheet installation were carried out by our certified teams using approved fasteners with EPDM washers.

For critical factories and logistics hubs, an inspector visits within 24 hours.

We carry temporary tarpaulin clamps and rapid-curing elastomeric sealants to stop the leak immediately, then carry out the permanent repair or re-sheeting, often without stopping your operations.

No. The site visit, laser measurement and itemised estimate are completely free with zero obligation.

You receive a clear proposal with material specifications and a bill of quantities before you make any commitment.

Yes. We re-sheet ageing asbestos and GI roofs with insulated, colour-coated metal sheets.

We also replace valley gutters and fix loose fasteners during the same job, and we plan the work in phases so factories can keep running.

We serve Chennai, Coimbatore, Madurai, Tirupur, Salem, Trichy, Hosur, Erode, Vellore and the rest of Tamil Nadu.

Select industrial contracts also taken up in Bengaluru, the Andhra Pradesh border belt and Kerala.

Connect with steel experts

Request a free quote & site survey

Our engineering team responds within 30 minutes during working hours. Call us directly or send your requirements below.

  • Fast support desk

    +91 95661 61290+91 90032 91290

    Direct structural engineer helpline

  • WhatsApp structural desk

    Send photos of your existing roof or site plan for a quick estimate.

    Open WhatsApp (95661 61290)
  • Service coverage

    JJ Roofing – Steel Builder

    Serving Chennai, Coimbatore, Madurai, Tirupur, Salem, Trichy, Hosur, Erode, Vellore and across Tamil Nadu.

    Mon – Sat: 8:00 AM – 8:00 PM

Tamil Nadu operational coverage

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Get an accurate specification quote