10 Things to Check Before Hiring Solar Panel Installation Experts

Author : Xcellon Biologics | Published On : 24 Aug 2026

Installing solar panels is a long-term investment. A good solar system can reduce your electricity bills for years, but the quality of the installation matters just as much as the panels and inverter you choose.

That is why you should not hire the first solar installer who gives you the lowest quote. Before making a decision, take some time to compare the company, equipment, installation process, warranties, and after-sales support.

If you are looking for solar panel installation experts, here are 10 important things you should check before signing a contract.

1. Check Their Experience and Credentials

Start by finding out how long the company has been working in the solar industry. Solar installation involves electrical work, structural mounting, system design, documentation, and coordination with the local DISCOM.

A reliable solar panel installation company should be able to explain its experience clearly and provide details about its team and previous projects.

For subsidy-related residential installations, it is also important to check whether the installer is properly empanelled under the applicable government programme. For example, Solar Oorja is listed as an MNRE-empanelled vendor and handles the installation process from site survey through subsidy assistance.

You can learn more about the company and its approach on the Solar Oorja About Us page.

2. Make Sure They Conduct a Proper Site Survey

A professional installer should not recommend a solar system simply by looking at your monthly electricity bill.

Your roof needs to be assessed for available space, shadows, direction, structural conditions and electrical requirements. Even nearby buildings, trees or water tanks can affect solar generation.

A proper site survey helps the installer determine how many panels can realistically fit on your roof and what system size makes sense for your electricity consumption.

Solar Oorja, for example, includes roof and shadow analysis as part of its residential solar installation process.

3. Ask How They Decide Your System Size

Bigger does not always mean better.

A good solar installation expert should study your electricity consumption before recommending a 3kW, 5kW or larger system. Ask the installer to explain the expected generation, estimated savings and why that particular capacity is suitable for your home.

Ideally, they should review several months of electricity bills rather than making a generic recommendation.

If you are unsure about the capacity your home needs, using a solar calculator can also give you a starting point before speaking to an installer.

4. Check the Quality and Certification of Solar Panels

The panels installed on your roof will remain there for decades, so equipment quality should never be overlooked.

Ask about the panel manufacturer, certifications, warranty and expected performance over time. Avoid choosing an installer purely because the quotation is cheaper if it involves unknown or poorly documented equipment.

Solar Oorja states that it uses BIS-certified and ALMM-listed panels from established manufacturers and offers long-term panel warranties.

Your installer should be comfortable giving you the exact brand and model details before you make the payment.

5. Compare the Complete Quote, Not Just the Final Price

Two installers may quote completely different prices for what appears to be the same solar system.

The difference could come from the quality of panels, inverter, mounting structure, cables, protection devices, installation work, monitoring system or paperwork.

Ask for an itemised quotation that clearly explains what is included. Also ask whether net metering, installation, transportation, government documentation and commissioning are included.

A low initial quote is not necessarily the cheapest option if important services are added later.

6. Ask About Installation and Mounting Quality

Solar panels need to withstand heat, rain and strong winds for many years. The mounting structure therefore deserves as much attention as the panels themselves.

Ask the installer how the panels will be mounted and whether the method is suitable for your roof.

You should also ask how they will protect the roof from potential leakage or damage. Solar Oorja says it uses zero-drill mounting technology for its installations.

A professional installation should leave you confident that both the solar system and your roof have been properly protected.

7. Understand the Warranty Before You Sign

Do not assume that every part of your solar system has the same warranty.

Ask separately about:

Solar panel warranty
Inverter warranty
Mounting structure warranty
Installation workmanship
Replacement or repair process
Maintenance support

Also ask who you will contact if something stops working after installation. A warranty is useful only when there is a clear process for claiming it.

8. Check Whether They Handle Net Metering and Subsidy Paperwork

For many homeowners, solar installation does not end when the panels are installed.

There can be DISCOM applications, inspections, net meter installation and subsidy-related documentation. A good solar installation company should explain which parts of this process it will handle.

Solar Oorja states that it coordinates net metering and assists customers with the PM Surya Ghar subsidy process.

If you are considering residential solar, you can also explore the residential solar installation service to understand what the installation process includes.

9. Don't Ignore After-Sales Service

Solar panels may require relatively little maintenance, but your system still needs monitoring, cleaning and occasional checks.

Before hiring solar panel installation experts, ask what happens after commissioning. Does the company offer maintenance? Will someone inspect the inverter and wiring? Is there a dedicated support team?

For example, Solar Oorja says its residential systems include a five-year free Annual Maintenance Contract covering cleaning, inverter checks and wiring inspections.

This type of post-installation support can make a significant difference over the life of your system.

10. Look Beyond Reviews and Ask the Right Questions

Online reviews can help, but don't make your decision based on ratings alone.

Ask the installer practical questions:

How much power will my system generate?
What equipment will you install?
Who will actually carry out the installation?
What happens if there is a problem after installation?
Who handles net metering?
What warranties do I receive?
What is included in the quoted price?

A professional company should answer these questions clearly instead of pressuring you to make a quick payment.

Choose Solar Installation Experts for the Long Term

Choosing the right solar installer is about more than finding the lowest installation price. You are choosing a company that will influence the performance, safety and reliability of your rooftop solar system for many years.

Look for solar panel installation experts who provide a proper site survey, recommend the right system size, use reliable equipment, offer transparent pricing and continue supporting you after installation.

If you are based in Noida, Greater Noida or nearby areas and considering rooftop solar, you can explore Solar Oorja's solar panel installation services to understand the available residential and commercial options.

Frequently Asked Questions

1. How do I choose the best solar panel installation company?

Look for experience, proper credentials, quality equipment, transparent pricing, professional installation, clear warranties and reliable after-sales support. A good installer should also conduct a proper roof survey before recommending a system.

2. What should I ask solar panel installation experts before hiring them?

Ask about system capacity, panel and inverter brands, expected generation, installation method, warranty, maintenance, net metering, subsidy assistance and the total project cost.

3. How important is the solar panel installation process?

It is extremely important. Even high-quality panels can underperform if the system is poorly designed or installed. Correct positioning, wiring, mounting and electrical protection all contribute to safe and efficient operation.

4. How long does solar panel installation take?

The physical installation can often be completed within a few days, depending on system size and site conditions. The complete process can take longer because approvals, inspections and net meter activation may also be required. Solar Oorja states that typical installation itself takes around 1–3 days.

5. Should I choose the cheapest solar installation quote?

Not necessarily. Compare what each quotation includes, including equipment quality, installation, warranties, paperwork, net metering and after-sales service. A slightly higher upfront cost can provide better long-term value if the equipment and service are better.

6. Do solar installers help with government subsidies?

Many authorised installers can assist with the documentation and process. However, eligibility and subsidy requirements depend on the applicable government scheme, so always verify the current requirements before making a purchase