Solar Rooftop Survey That Prevents Costly Installation Mistakes

Wrong measurements and blind spots in manual site surveys silently kill solar project ROI. Lesoko’s drone-based solar rooftop survey delivers sub-centimetre accurate 2D/3D models, shadow analysis & full feasibility reports in 48 hours — trusted by India’s leading EPCs, IPPs, and developers.
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13,000+ Rooftop

Rooftops Surveyed

<1 cm

RTK GPS Accuracy

6+ GW

Solar Capacity Surveyed

500K+

Safe Drone Flights

48 Hrs

Report Turnaround
Drone inspecting solar panels on a rooftop for accurate solar rooftop survey and structural safety assessment in India
The Problem

Why Solar Projects Fail Before Installation Even Starts

Inaccurate rooftop data is the root cause of most solar project cost overruns, underperforming systems, and post-installation corrections. Manual surveys simply cannot capture what drone surveys do.

👉 Wrong Measurements = Wrong Design 

Manual tape surveys miss roof curvature, obstacles, and micro-elevation changes. These errors appear as rework during installation — after panels, mounts, and cables have already been ordered.

👉 Missed Shading Costs 15–30% Output

Manual surveyors can’t model shade from adjacent structures, trees, or rooftop equipment across every hour of the day. Shading analysis requires solar path simulation — only possible with drone photogrammetry data.

 
👉 Roof Access = HSE Risk Every Visit

Sending surveyors onto old industrial sheds, steep slopes, or high-rise rooftops creates real safety liability. Every manual site visit that can be replaced by a drone flight removes that risk entirely.

👉 Manual Surveys Delay Project Timelines

Multi-day manual surveys slow down proposal timelines, delay project approvals, and let competitors respond faster. Drone surveys are completed in hours — reports in 48 hours.

 
Aerial view of solar panels on a rooftop being surveyed by drone for performance assessment and installation planning in India
Drone capturing roof data for solar rooftop survey and solar panel installation planning on a commercial building in India
About the Service

What Is a Solar Rooftop Survey?

A solar rooftop survey is a drone-based aerial data collection service using UAVs equipped with high-resolution RGB cameras and RTK-GPS positioning to capture precise measurements, surface models, and structural data of a building’s roof — for accurate solar panel installation planning.

The drone captures thousands of overlapping images in a single automated flight, processed using photogrammetry software into 2D orthomosaic maps, 3D surface models, digital elevation models (DEMs), contour maps, and point cloud data — all geo-referenced to sub-centimetre accuracy.

Unlike manual site surveys relying on tape measures and field sketches, a drone solar rooftop survey captures complete roof geometry, obstacles, structural features, and shading conditions in one visit — delivering a design-ready data package compatible with PVSyst, AutoCAD, SketchUp, and GIS platforms.

Why Choose Lesoko For Rooftop Survey

Having completed 13,000+ solar rooftop surveys across India — from 10 kW residential rooftops to multi-MW C&I installations — Lesoko delivers the accuracy, speed, and data quality that solar EPCs and developers need.

✦ DGCA-certified pilots — fully compliant with Indian drone regulations

✦ Sub-centimetre RTK-GPS accuracy — no design rework, no surprises on site

✦ 48-hour report delivery — complete 2D/3D models, shadow analysis, and DEM

✦ Trusted by Tata Power, L&T, ReNew Power and 50+ solar developers

Drone capturing roof data for solar rooftop survey and solar panel installation planning on a commercial building in India
Our Process

How Our Drone Solar Rooftop Survey Works

A four-step process — from initial site planning to final report delivery — completed in a single drone flight and 48-hour processing window.

 

Site Planning

Our team studies your rooftop layout, structure type, and project objectives. We program optimised UAV flight paths for 100% roof coverage and handle all DGCA compliance requirements before the survey date.

Drone Data Capture

RTK-GPS enabled drones execute automated flight routes — capturing thousands of high-resolution overlapping images and precise elevation measurements across your entire rooftop safely, without any physical roof access.

Data Processing & Analytics

Raw aerial data is processed using advanced photogrammetry software into accurate 2D orthomosaic maps, 3D surface models, digital elevation models, contour maps, point cloud files, and solar shading analysis — all geo-referenced.

Report Delivery

A complete solar rooftop survey package — including all models, maps, shadow analysis, and feasibility report — is delivered to your secure Lesoko dashboard within 48 hours, ready for design and installation planning.

Solar photovoltaic panels during a solar project installation.
Pain Points Eliminated

Common Solar Project Problems Solved by Drone Survey

Every item below is a real cost that solar EPCs and developers suffer from manual surveys. Drone rooftop surveys eliminate each one.

Wrong Rooftop Measurements & Panel Count Errors

Manual measurements miss roof curvature, obstacles, and surface details — causing incorrect panel counts and layout errors found only on installation day. Drone surveys deliver millimetre-accurate data across the entire roof surface.

Worker Injuries During Manual Roof Surveys

Surveyors climbing old industrial rooftops, high-rise buildings, or fragile structures face real fall risk. Drone surveys eliminate physical roof access entirely — zero HSE incidents, zero liability.

Design Rework from Inaccurate Site Data

Incorrect measurements lead to mounting mismatches, cable routing errors, and structural conflicts discovered during installation. Accurate drone survey data prevents all of these upstream.

Shading Losses from Missed Shadow Patterns

Manual surveys cannot model shadow paths throughout the day. Missed shading causes 15–30% generation losses in affected strings — an invisible cost that runs for the plant’s entire 25-year lifespan.

What You Get from Every Solar Rooftop Survey

Every Lesoko solar rooftop survey includes a complete data package — not just images. Eleven design-ready deliverables, all geo-referenced, in multiple export formats.

A geo-referenced orthomosaic map from Lesoko's drone solar rooftop survey — providing a precise, stitched 2D aerial image of the complete rooftop used for panel layout planning and usable area calculation.

Orthomosaic Map

A geo-referenced, stitched 2D aerial image of the complete rooftop — accurate to sub-centimetre level — used for precise panel layout planning and usable area calculation.
2D and 3D rooftop models from drone solar rooftop survey showing building structure for solar panel installation planning in India

2D / 3D Rooftop Models

Precise digital models of your roof including every beam, support, obstacle, and surface feature — enabling engineers to plan panel placement with exact structural context and no surprises on installation day.
Digital elevation model from drone solar rooftop survey showing precise surface height data for solar mounting system design and drainage planning in India

Digital Elevation Model (DEM)

Precise surface elevation data of the entire roof — revealing slope, tilt, and height variations critical for mounting system design, drainage planning, and inter-row shading calculations.
Contour map from drone solar rooftop survey showing roof gradient and surface elevation for solar panel tilt angle planning in India

Contour Maps

Topographic contour data identifying roof gradient and surface undulations — essential for uniform panel tilt angles, correct mounting heights, and row-spacing optimisation across uneven rooftops.
Point cloud data from drone solar rooftop survey showing dense 3D surface model of rooftop for structural analysis and solar installation planning in India

Point Cloud Data

Dense 3D point cloud of the rooftop surface — providing the raw photogrammetric data for advanced structural analysis, obstacle height measurement, and import into specialist solar design and GIS tools.
SketchUp and CAD-ready 3D models from drone solar rooftop survey showing solar panel layout on building roof for design-ready export in India

SketchUp / CAD-Ready Models

Design-ready 3D models directly importable into SketchUp, AutoCAD, and PVSyst — eliminating remodelling from scratch and enabling your design team to begin work immediately on receipt of the report.
Aerial photos and videos from drone solar rooftop survey showing complete rooftop overview and site context for client reporting and documentation in India

Aerial Photos & Videos

High-resolution aerial photographs and video footage of the complete rooftop — providing a visual site record for client presentations, progress documentation, and stakeholder reporting alongside the technical data outputs.
Sheet profile analysis from drone solar rooftop survey showing metal sheet roofing structure and purlin spacing for solar mounting system selection in India

Sheet Profile Analysis

Detailed profiling of metal sheet roofing — identifying sheet type, purlin spacing, ridge orientation, and structural geometry. Essential for selecting the correct solar mounting clamps and ensuring a structurally sound, warranty-compliant installation on metal sheet rooftops.

Benefits of Drone-Based Solar Rooftop Survey

Why solar EPCs, developers, and rooftop owners across India choose drone rooftop surveys over traditional manual methods — and the numbers behind it.

Sub-Centimetre Accuracy

RTK-GPS drone surveys deliver positional accuracy that manual tape measures cannot approach — eliminating the measurement errors that cause design rework and installation corrections.

75% Faster Site Assessment

A large commercial rooftop surveyed in under 2 hours on-site. Full processed report in 48 hours. Respond to client RFQs faster than competitors still waiting for manual survey results.

40–50% Lower Project Cost

Eliminating manual labour, scaffold hire, multi-day visits, and rework makes drone surveys significantly cheaper than traditional methods — especially when redesign costs are factored in.

Shading Analysis Included

Every survey includes solar path simulation — modelling shade from surrounding structures, rooftop equipment, and parapets throughout the day. Correctly placed panels based on this data improve annual yield by 15–30%.

Zero Safety Risk

No workers on the roof. No height risks. No structural load during survey. Drone surveys eliminate the HSE liability that comes with manual rooftop access — particularly on old, high, or fragile structures.

Design-Ready Exports

All deliverables are directly compatible with PVSyst, SketchUp, AutoCAD, and GIS platforms — your design team receives a package they can use immediately, without any data conversion or re-drawing work.

Service Coverage

Solar Rooftop Survey Services Across India

From large-scale ground-mounted farms in Rajasthan and Gujarat to commercial rooftop installations across Tamil Nadu, Karnataka, and Maharashtra — Lesoko’s drone inspection teams are deployed nationwide.

Every state has its own inspection demands. Rajasthan and Gujarat see extreme dust accumulation, making bi-annual thermal inspections essential to prevent 15–20% output losses. Tamil Nadu and Karnataka have rapidly growing rooftop solar capacity that needs regular post-monsoon fault clearance. Maharashtra and Telangana host large C&I portfolios where even a 1% output drop across multiple sites represents significant revenue loss.

Our DGCA-certified teams operate across all major solar corridors covering utility-scale IPPs, EPC handover inspections, and commercial rooftop O&M contracts in every region.

Drone solar rooftop survey services coverage map across India showing all major solar states

Solar Rooftop Survey for Every Stakeholder

  • Solar EPC Contractors
  • Commercial & Industrial Rooftop Owners (C&I)
  • Renewable Energy Developers & IPPs
  • Solar Asset Investors & Portfolio Managers
  • Infrastructure & Asset Management Firms
  • Government Bodies & Utility Rooftop Programmes

How Often Should a Solar Rooftop Be Inspected?

Once your solar rooftop is installed, regular inspection maintains peak performance and catches faults before they cause generation losses that run for years. The standard recommendation is at least one drone inspection per year for all installed solar rooftops.

Soiling alone can reduce output by 15–20% between washes. Bi-annual inspections are strongly recommended for these regions.

Post-monsoon inspections are critical across all states. Storm damage, hail impact, bird droppings, and moisture ingress accumulate during the monsoon season — and may not trigger SCADA alerts until significant generation losses have already occurred. A post-monsoon drone inspection catches all of this before it affects your next quarter’s output.

Trusted By Industry leaders

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What Solar Operators Say About Our Rooftop Surveys

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“Lesoko’s solar rooftop survey saved us an entire week of site revisits. The 3D model and shadow analysis were exactly what we needed to finalise the panel layout for a complex industrial shed rooftop. Report delivered in 36 hours.”

 
Rated 5 out of 5
Solar EPC Contractor · Maharashtra Project Manager ·
eneroarc

“We used to send workers onto rooftops for site surveys — always a concern on old industrial buildings. Lesoko’s drone survey is faster, safer, and gives us far more design data than we were getting before. It’s now standard on every project.”

 
Rated 5 out of 5
Renewable Energy Developer · Tamil Nadu Site Engineer ·
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“The building feasibility report identified a structural issue on one roof section before we’d ordered any panels or mounting hardware. That single finding from the rooftop survey saved us from a very expensive installation mistake.”

Rated 5 out of 5
Asset Management Firm · Gujarat O&M Head ·

Solar Rooftop Survey Cost & Packages in India

Fixed packages by system size. No hidden costs. Survey quote within 24 hours. Survey + inspection combination packages available.

 

Small Rooftop

10 kW – 50 kW rooftop systems
  • 🔸Drone RGB aerial survey flight
  • 🔸2D orthomosaic map
  • 🔸Roof area measurements & panel count
  • 🔸Shadow & shading analysis
  • 🔸Report delivered in 48 hours
  • 🔸DGCA-compliant operations
Get Rooftop Quote

C&I Rooftop

50 kW – 10 MW commercial
  • Full drone survey + RGB data capture
  • 2D & 3D rooftop models
  • Orthomosaic + DEM + contour maps
  • Detailed shadow & shading analysis
  • Building structural feasibility report
  • Solar PV module capacity measurements
  • SketchUp / AutoCAD compatible exports
  • Client dashboard access and PDF + Excel + GIS + image exports
Get Rooftop Survey Quote

Multi-Site Contract

Multiple rooftops & annual contracts
  • 🔸Annual or bi-annual survey scheduling
  • 🔸Volume pricing for multiple sites
  • 🔸Priority dispatch & fast turnaround
  • 🔸Trend analysis across inspections
  • 🔸Dedicated account manager
  • 🔸Survey + thermal inspection combo
  • 🔸Multi-format delivery + dashboard
Discuss Contract
Solar rooftop panel survey report on Lesoko client dashboard showing installation data and performance analysis for solar project planning in India
Rooftop solar survey shadow analysis report showing how building shadows fall on solar panels during the day for optimised installation planning in India

Lesoko Dashboard

Lesoko Client Dashboard — Access All Survey Data Anywhere

Every solar rooftop survey includes access to our secure cloud-based client dashboard — giving solar EPCs, developers, and asset managers instant access to all survey data, models, reports, and recommendations from any device.

Dashboard Features

  • Secure role-based login for your team and clients
  • Geo-tagged rooftop data on interactive maps
  • 2D/3D models with interactive measurement overlays
  • Shadow analysis visualisation with time-of-day slider
  • AI-driven recommendations for panel placement optimisation

  • Download PDF, Excel, GIS, CAD, and raw image export

Data Security

All survey data is securely stored and accessible only by authenticated users, following DGCA and ISO data security standards. Your site data is never shared.
 

Get Your Solar Rooftop Survey Quote in 24 Hours

Free · No obligation · Quote in 24 hours
 

Phone/ Whatsapp

+91 78457 26375/ 7845726374

Email Us

sales@lesoko.in

Head Office

T. Nagar, Chennai, Tamil Nadu 600017
 

Request Solar Rooftop Survey Quote

Frequently Asked Questions

A drone-based solar rooftop survey uses high-resolution cameras and RTK-GPS sensors mounted on DGCA-certified drones to capture precise aerial data of your rooftop. The data is processed into 2D/3D models, orthomosaic maps, shadow analysis reports, and digital elevation models — giving solar engineers everything they need to design and install a system accurately without any physical roof access.

Without an accurate survey, solar installations face wrong panel counts, incorrect mounting designs, shading losses, and structural failures. A drone rooftop survey measures usable roof area, identifies obstacles and shading patterns, assesses structural load capacity, and produces design-ready models — preventing costly rework after installation begins.

A drone survey completes in 30 minutes to 2 hours on-site versus 1–3 days for manual methods. It delivers sub-centimetre accuracy compared to tape-measure estimates, eliminates worker roof-climbing risk entirely, and produces digital deliverables like 3D models and orthomosaic maps that manual surveys cannot provide at any cost.

You receive a complete survey package including an orthomosaic map, 2D and 3D rooftop models, digital elevation model (DEM), contour maps, point cloud data, shadow and shading analysis, sheet profile analysis, solar PV module measurements, building feasibility report, SketchUp/CAD-ready models, and aerial photos and videos — all delivered via a secure cloud dashboard within 48 hours.

The on-site drone flight takes 30 minutes to 2 hours depending on roof size and complexity. Processed deliverables — including all 2D/3D models, shadow analysis, and the final report — are ready within 48 hours of the site visit.

Lesoko’s drone surveys achieve sub-centimetre positional accuracy using RTK-GPS technology. This level of precision ensures panel counts, row spacing, cable routing paths, and mounting designs are correct the first time — eliminating the measurement errors that cause solar installation rework.

Survey cost depends on roof size, location, and the deliverables required. Small residential rooftops, large C&I installations, and multi-site projects are priced differently. Contact Lesoko for a project-specific quote — most surveys are significantly more cost-effective than the rework costs they prevent.

For most residential and commercial rooftop surveys, property owner consent is sufficient. Lesoko’s DGCA-certified pilots handle all regulatory compliance, flight permissions, and aviation law requirements — you don’t need to manage any drone paperwork yourself.

Lesoko provides solar rooftop survey services across India including Tamil Nadu, Maharashtra, Rajasthan, Gujarat, Karnataka, Telangana, Andhra Pradesh, and Kerala. Key cities covered include Chennai, Mumbai, Pune, Jaipur, Ahmedabad, Bengaluru, Hyderabad, and Kochi. Contact us for project availability in your location.

Yes. Lesoko’s survey deliverables — including the building feasibility report, shadow analysis, and CAD-ready 3D models — are accepted by solar EPCs, DISCOM authorities, and financial institutions for project approval, net metering applications, and loan documentation. The reports meet IEC and DGCA documentation standards.

Lesoko — India's Leading Drone Technology Company | Fly Beyond

2nd Floor, SUCONS Sivagami Square, 147, Gopathy Narayana Rd, above Linen Club, opp Saravana Furniture, T. Nagar, Chennai, Tamil Nadu 600017

Phone: +91 78457 26375/ 7845726374

Email: sales@lesoko.in

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