If you are comparing solar quotes on the Costa Blanca, the most useful approach is to ask each provider the same clear questions. A good quote should explain what is being proposed, how it will work on your property, what is included, and what still needs to be checked. That makes it easier to compare offers properly and avoid relying on vague estimates.
This is especially important for villas, townhouses and second homes in areas such as Jávea/Xàbia, Moraira, Dénia, Calpe, Altea and Benissa, where roof type, shading, available space and how often the property is occupied can all affect the system design. You may also find our Solar Panel Installation for Villas on the Costa Blanca useful.
Why the right questions matter
Solar quotes can look similar at first glance, but the details often vary a lot. One provider may include battery storage, monitoring and installation work in the price, while another may only quote for panels and the basic equipment. Some will also be clearer than others about the checks needed before any system is installed. You may also find our Solar Panels in Costa Blanca North useful.
Asking the right questions helps you:
- compare like with like
- understand whether the system suits your property and usage
- spot any missing items before you agree to proceed
- avoid confusion later about layout, equipment or aftercare
What to ask before getting a solar quote
1. What is included in the quote?
Start with the basics. Ask for a written breakdown of exactly what is included and what is not.
Useful points to clarify:
- solar panels
- inverter
- battery storage, if any
- mounting or fixing equipment
- cabling and protection devices
- monitoring system or app
- labour and installation
- commissioning and handover
If anything is excluded, ask for it to be stated clearly. A quote that does not separate equipment from installation work can be difficult to compare with others.
2. What assumptions has the quote been based on?
A reliable quote should explain the assumptions behind the proposed system. For example, it may be based on your current electricity use, roof space, shade levels or whether you want battery storage.
Ask:
- how many units of electricity the system is designed to offset
- whether the estimate is based on daytime use, evening use or both
- whether seasonal occupancy has been considered
- whether the system is sized for future changes, such as more people in the property or an EV charger later on
If the property is a holiday home or a part-time residence, make sure the provider understands that. Energy use patterns for a second home are often very different from a full-time family home.
3. Has a site survey been done, or is this only a rough estimate?
A remote estimate can be useful as a starting point, but it is not the same as a detailed proposal.
Ask whether the provider has:
- inspected the roof or installation area
- checked for shading from trees, walls or nearby buildings
- considered roof orientation and pitch
- reviewed the condition of the roof and available space for equipment
On the Costa Blanca, roof layout and local micro-shading can make a real difference to system performance. A proper survey helps avoid unpleasant surprises later.
4. Which equipment are you recommending, and why?
It is reasonable to ask what brands or product types are being proposed and why they suit your property. You do not need technical jargon, but you should understand the reasoning.
Ask about:
- panel type and why it was chosen
- inverter type and whether it suits the system size
- battery size, if a battery is included
- expected compatibility between the components
The aim is not to choose the most complicated system, but the one that best fits your usage, roof and budget.
5. How much roof space will the system need?
If you want to understand the proposal properly, ask for an estimate of the roof area required and where the panels are likely to be positioned.
This matters because:
- some roofs have limited usable space
- chimneys, skylights or roof features can restrict layout
- shading may make one section better than another
- appearance can matter on villas and prominent properties
A clear layout helps you see whether the design is practical before you go any further.
6. How will the system perform on my property?
Performance estimates should be explained carefully. Rather than focusing only on a headline figure, ask what level of generation the provider expects across the year and what factors could affect it.
Ask:
- what annual generation has been estimated
- how shading may affect output
- whether the estimate reflects local weather conditions
- how battery storage may change the amount of energy you can use yourself
Be cautious if a quote sounds too certain. Solar performance depends on property-specific conditions, and a sensible provider should make that clear.
7. What happens if my electricity use changes?
Many homeowners later add new appliances, a pool system, air conditioning use or an EV charger. If you think your needs may grow, ask how flexible the proposed system is.
Good questions include:
- can the system be expanded later?
- would a larger battery be possible in future?
- is the inverter sized with some headroom?
- what would changing the system later involve?
This is particularly useful if you are buying a home and are still deciding how you will use it.
8. What checks or permissions may be needed?
Requirements can vary depending on the property, location and the type of installation. Rather than assuming everything is the same everywhere, ask the provider what they recommend checking before any work begins.
You can ask:
- what property checks are needed first
- whether the roof condition should be reviewed
- whether there are any local requirements to confirm
- what information you would need to provide as the homeowner
A good answer should be practical and straightforward, even if it is not possible to give a one-size-fits-all response.
9. What is the timeline from quote to installation?
It helps to know what the process looks like after the quote stage.
Ask:
- how long a survey or design review usually takes
- when installation could potentially take place
- what might delay the project
- whether you will have a single point of contact
For second-home owners who visit the Costa Blanca only at certain times of year, scheduling can be especially important.
10. What aftercare is provided?
Solar panels are generally low-maintenance, but you should still understand what support is available after installation.
Ask about:
- system monitoring
- basic handover guidance
- what to do if performance drops
- who to contact with questions later on
It is worth knowing whether aftercare is included or charged separately, and what response process you can expect if you need help later.
How to compare solar quotes fairly
When you have several quotes, compare them on more than price alone. A quote that seems cheaper may simply include less detail or fewer components.
A fair comparison should look at:
- what equipment is included
- whether the system size suits your household
- whether battery storage is part of the proposal
- how clearly the provider has explained assumptions
- what is excluded from the price
- whether the design reflects your property, not just a standard package
If two quotes are very different, ask each provider to explain the difference in plain language. Often the gap comes down to system size, equipment quality, installation scope or how carefully the property has been assessed.
Red flags to watch for
Be careful if a quote:
- gives a total price without any breakdown
- promises savings without explaining the assumptions
- does not mention a site survey or property assessment
- uses generic wording that could apply to any home
- leaves you unsure about what happens next
A helpful solar quote should answer questions, not create more of them.
A simple checklist to use when requesting a quote
Before you agree to anything, make sure you can answer these points:
- What exactly is included?
- What assumptions were used?
- Has the roof or installation area been checked?
- Why was this equipment chosen?
- How much roof space will it use?
- How is performance expected to vary?
- Can the system be expanded later?
- What checks or permissions may be relevant?
- What is the likely timeline?
- What aftercare is included?
If you can get clear answers to those questions, you are in a much better position to compare proposals confidently.
Frequently asked questions
Do I need to know a lot about solar before asking for a quote?
No. A good provider should explain the basics clearly. Your job is mainly to give an honest picture of how you use energy and ask for a written proposal you can understand.
Is a cheaper quote always the better choice?
Not necessarily. Lower prices can sometimes mean fewer included items, a smaller system or less detail in the proposal. It is better to compare the full scope of work, not just the headline figure.
Should I ask for more than one quote?
Yes, comparing several quotes is sensible. It helps you see whether the proposed system and assumptions are realistic for your property.
What if I am buying a property and have not moved in yet?
Tell the provider that your usage may change once you are living there. They can then help you think through whether the system should be designed for immediate use or future flexibility.
Can I ask for a quote before a site visit?
Yes, and that can be a useful first step. Just remember that a more accurate proposal usually depends on a proper assessment of the property.
Request clear, practical solar advice
If you are considering solar panels on the Costa Blanca, asking the right questions before getting a quote can save time and make comparisons much easier. The best proposals are clear, specific and based on your property rather than a generic template.
If you would like help understanding what to ask next, or you want to compare solar options for a home in Jávea, Moraira, Dénia, Calpe, Altea, Benissa or nearby areas, Get Free Solar Advice through the enquiry form.