Brands we install
We fit tier-1 panels and reliable inverters — the same kit we’d put on our own roofs.
Our range
Solar panels, inverters & batteries — installed by our own team
Panels, inverters and battery storage — specified, supplied and installed by the same crew that quotes your job, across Madurai and Tamil Nadu.
By the numbers
Numbers we stand behind
- 15+
- installations
- 50 kW+
- installed
- 30 yr
- panel warranty
- 100%
- MNRE compliant
Why Quadbiz
Quality you can point to, start to finish
One team. One quality standard. The whole system.
Most solar companies fit the panels and sub-contract the rest. We don’t. From the panels to the balance-of-system — AC and DC cabling, the DCDB, inverters and mounting structures — right through to the civil work, it’s all specified and installed by our own team, to one standard. When every part is done by the same people who stand behind it, “quality” stops being a word on a brochure. Around here, quality means Quadbiz.
See our standardPrecision Engineering
Experienced, trained installers and premium materials on every job. No shortcuts, no compromise.
Smart Automation
Real-time monitoring on your system, so you (and we) can see it performing — and catch issues early.
We handle every approval
The TANGEDCO application, the PM Surya Ghar subsidy claim, the net meter and the DISCOM sign-off — all filed for you.
Workmanship warranty
Cover on every install, plus a local team you can actually reach when you need us.
How it works
From first click to first saving
Five steps, one team the whole way through — no handoffs to strangers.
- 1
60-second quote
Your address and a rough power bill. That’s all we need to get started.
- 2
We chase the subsidy
PM Surya Ghar and TANGEDCO paperwork, handled for you.
- 3
Site assessment
Our own team checks your roof, shading and load.
- 4
Installed by our crew
The people who quoted the job are the ones on your roof.
- 5
Connected & supported
Net meter live, subsidy claimed, and we’re still on call.
Recent work
Real installs across Tamil Nadu
Every system here was fitted by our own team — from the mounting frame to the final net-meter connection. A few from recent weeks.
Want to know what you’d actually save?
Answer a few quick questions about your home and your bill. We’ll show you a real, subsidy-adjusted estimate — no phone call needed to see the number.
Get my estimatePincode6250XX
SystemSolar + battery
Monthly bill₹3,500
Calculate savings →Reviews
Homes across Tamil Nadu, one standard
5.0
We have installed Solar with Quadbiz which made our life easier, one stop solution for solar in Madurai. From installation to subsidy the team were with us throughout the process.
Excellent solar power plant with good infrastructure and professional service. The installation and overall maintenance are impressive. A great initiative towards clean and renewable energy. Highly recommended! ⭐⭐⭐⭐⭐ Quadbiz Solar Solutions🙏🏻🙏🏻🙏🏻
Very good clearly explaining about the installation. Good in response whenever I had a doubts. Installation job is very excellent 👍 All work is done on the date given .Not yet delayed. Inverter and pannel installed is high Quality. Cost of total installation is very best and quality too.
FAQs
Common questions
Is rooftop solar worth it in Tamil Nadu?
For most homes with a decent roof and a real monthly bill, yes. Tamil Nadu gets plenty of sun, grid tariffs keep climbing, and the PM Surya Ghar subsidy brings the up-front cost down. A well-sized system usually pays for itself within a few years and then delivers largely free power for two decades.
How much does a system cost after the subsidy?
It depends on your roof and your usage, so we won’t throw a single number at you. After the PM Surya Ghar subsidy, a typical 3 kW home system is a good deal cheaper than it looks up front. We give a fixed, written quote after a free survey.
Which areas do you cover?
Madurai and across Tamil Nadu. Our base is in Vandiyur, Madurai.
How long does an installation take?
A typical home system goes up in two to four days once materials arrive. The subsidy and net-metering approvals run in the background while that happens.
What makes Quadbiz different?
We don’t outsource. The team that quotes your job installs it and stands behind it — and we handle all the government paperwork ourselves.
Ready to see your number?
Free quote, no obligation — serving Madurai and across Tamil Nadu. We’ll get back to you within one business day.