Choosing to install solar panels is an exciting and smart move, but picking the right installer is just as important as choosing the right panels.
At Solar Power NI, we believe an informed customer is an empowered customer. Asking the right questions during your decision-making process ensures you’ll get the best technology, the best service, and a system that aligns with your ethical values too.
Here’s our guide to the key questions you should always ask your solar installer — and why it matters.
1. What solar panel brands do you install?
Always ask your installer to name the specific brands and models they recommend. Reputable companies will proudly share this information.
If they are vague, or reluctant to disclose it, that’s a red flag. You have the right to know exactly what’s being installed on your home.
At Solar Power NI, we only use trusted, premium brands like SOLARWATT, known for their durability, performance, and ethical manufacturing standards.
2. Can I see the panels listed on my quote?
Make sure the make and model of the panels and inverter are clearly stated on your quote.
This prevents any last-minute substitutions or surprises on installation day.
If the equipment isn’t itemised, ask for a revised quote. Transparency at this stage protects you later.
3. What warranty do the panels and inverter come with?
A strong warranty is a sign of quality.
Ask for details on both the product warranty (covers manufacturing faults) and the performance warranty (guarantees output over time).
For example, SOLARWATT panels offer an outstanding 30-year product and performance warranty — guaranteeing 90% output after 30 years.
4. Who will carry out the installation?
It’s important to know if the company uses in-house teams or subcontractors.
In-house installers are usually better trained and offer more consistent quality.
At Solar Power NI, we use our own expert fitting teams, so you always get trusted professionals working on your home.
5. Are your panels ethically sourced?
This is becoming more important than ever. A GreenMatch report revealed that many global solar manufacturers are linked to forced labour practices in regions like Xinjiang, China.
(You can read the full report here: Solar Companies Linked to Forced Labour).
Ask your installer how they ensure their panels are ethically produced.
At Solar Power NI, we partner with SOLARWATT, a German manufacturer with strict ethical policies and full supply chain transparency.
We believe clean energy should never come at the cost of human rights.
6. How will you maximise my solar savings?
Ask what options they offer for:
- Battery storage
- Smart energy diverters (like eddi)
- EV chargers (like zappi)
- System design tailored to your usage patterns
The right installer won’t just sell you panels — they’ll help you design a system that maximises your savings and suits your future plans.
7. Can I speak to past customers or see reviews?
Always check customer reviews (such as on Trustpilot or Google) and ask if you can speak to previous customers.
An installer with a strong reputation will be more than happy to show off their work.
Solar Power NI is proud to have over 100 five-star reviews, built on years of trusted service.
Make your solar investment a smart one
Installing solar is a major investment — in your home, your finances, and your values.
Asking the right questions today helps ensure you choose a solar installer that stands for quality, transparency, and ethics.
At Solar Power NI, we’re committed to giving you clear answers, premium technology, and ethical solar solutions you can be proud of.
Ready to get started?
Contact Solar Power NI today for a free consultation — and let’s power your home the right way.
