Questions to Ask Your Solar Installer Before Signing a Contract

Choosing to install solar panels is a major investment in both your home and the future of your energy use.

But before you sign on the dotted line, it's essential to be informed. Asking the right questions ensures you're getting a reliable system from a trusted installer—one who’s transparent, qualified, and understands your home’s specific needs.

Here, we will walk you through the most important questions to ask a solar installer, so you can feel confident before signing a contract.

In This Article:

1. What certifications and licenses does your solar installer hold?

2. How long has the company been in the solar industry?

3. What solar panels and equipment do you offer?

4. What is the expected solar energy production for my home?

5. How is the solar installation process managed?

6. What warranties are included with the solar system?

7. What will my total solar investment cost, and are there hidden fees?

8. What financing options or solar incentives are available?

9. How do you handle solar panel maintenance and repairs?

10. What is included in the contract, and can I review it before signing?

What Certifications and Licenses Does Your Solar Installer Hold?

Before you commit to any solar installer, the first thing to ask is: are they properly certified and licensed?

A good solar installer should be able to show you credentials such as a license to operate in your state and NABCEP (North American Board of Certified Energy Practitioners) certification. These qualifications show that the installer has completed rigorous training and understands how to safely and efficiently install solar panel systems.

Installers should also be bonded and insured to protect you against property damage or potential accidents during installation. Asking about certifications isn’t just bureaucracy—it’s about trusting your home to a competent solar contractor.

How Long Has the Company Been in the Solar Industry?

Experience matters. Solar installation is a highly technical process, and companies with years of experience in the solar industry are more likely to provide quality work, comply with regulations, and address unexpected issues.

Ask how many solar panel systems the company has installed, especially ones in your area. Familiarity with your local permitting process and environmental conditions can reduce delays and improve installation quality.

Inquire whether the same company handles the design, installation, and service, or if they subcontract. Solar companies that use in-house installers are more accountable and consistent.

At New Day, we have been installing residential and commercial solar systems for more than 23 years.  Check out some reviews, visit our gallery, or give us a call with any questions. 

What Solar Panels and Equipment Do You Offer?

Not all solar panels are created equal. Ask your installer which solar panel brands and models they use, and whether the equipment is Tier 1 (indicating top quality and long-term reliability). Look for solar panels with strong performance warranties—typically guaranteeing at least 80% efficiency after 25 years.

You should also ask about other solar equipment like inverters and solar batteries. The installer should explain how each component fits into your solar system and how it affects solar power production, system durability, and long-term energy output.

At New Day Solar, we are Enphase Platinum and Qcells Partner installers, ensuring that your system is made up of top of the line components ensuring greatest efficiency and longevity.

What Is the Expected Solar Energy Production for My Home?

Every home is different, and your installer should be able to provide a customized solar energy production estimate based on your roof, orientation, shading, and energy usage. Ask for a performance model that shows estimated kilowatt-hour production by month and year.

The installer should explain how they calculate your solar system’s natural efficiency, what assumptions are used, and how weather, shading, or roof pitch may affect output. This will give you a realistic picture of how much solar power you’ll produce and how it’ll reduce your energy bill.

How Is the Solar Installation Process Managed?

Understanding the steps involved in solar installation is just as important as choosing the right equipment.

Ask the company to walk you through the full timeline—from design and permitting to solar panel installation and inspection. Who handles the paperwork? Will they manage your utility interconnection and solar permits?

This is your home, so knowing when and how workers will access it is key. Good solar installers will explain each step clearly and keep you updated throughout the process. Ask whether the team on-site will be company employees or subcontractors.

What Warranties Are Included With the Solar System?

Ask your installer what warranties come with the solar panel system. You’re likely to receive:

• Product warranty on the solar panels (typically 10–25 years)

• Performance guarantee, ensuring the panels will produce a minimum amount of energy over time

• Workmanship warranty for installation labor

Some solar companies offer all-in-one warranties that cover everything. Others may have different providers for each part of the system. Be sure to ask how warranty claims are handled and who you contact if something goes wrong.

What Will My Total Solar Investment Cost, and Are There Hidden Fees?

Make sure you understand the full breakdown of the cost to install solar. Ask for a detailed quote that includes equipment, labor, permitting, and grid interconnection. Don’t be shy—ask if there are any hidden fees, add-ons, or additional charges you should be aware of.

It’s a good idea to compare quotes from different solar companies, but remember that the cheapest isn’t always the best. Look for quality, transparency, and reputation. A good installer will be honest about what you’re paying for and why.

What Financing Options or Solar Incentives Are Available?

Financing your solar installation can be just as important as the hardware itself. Your installer should walk you through your options: paying in cash, solar loans, solar leases, or entering a power purchase agreement (PPA). Each option affects your contract and solar investment differently.

Be sure to ask about solar incentives like the federal solar tax credit, local rebates, and state programs. A knowledgeable solar company will help you qualify for the federal solar tax credit and other programs that lower your total cost.

How Do You Handle Solar Panel Maintenance and Repairs?

Installing solar panels is just the beginning. Ask your installer about ongoing maintenance: how often should you clean or inspect your panels? What kind of wear and tear should you expect? Who should you call if your solar production drops?

Some companies offer maintenance plans or performance monitoring tools so you can track your solar system’s output. Ask whether you’ll have remote access to production data and whether they provide on-site service or remote diagnostics.

What Is Included in the Contract, and Can I Review It Before Signing?

Before you sign a contract, ask for a complete copy to review. You should have time to understand the terms, warranties, project scope, payment schedule, and cancellation terms. Watch for clauses about delays, changes in pricing, or what happens if equipment becomes unavailable.

Don’t be afraid to ask solar companies to clarify confusing language. It’s not just about signing—it's about signing with confidence. The best solar companies will be transparent and patient, helping you feel informed every step of the way.

Let Us Answer All Your Questions!

Asking the right questions ensures you choose the right solar installer and get the most value from your solar power investment.

If you’re thinking about putting solar panels on your home, we can answer all your questions. Give us a call today or click here to see all the options you have to make solar a reality for you!