#1
iSpark Electrical - Lucky Solar
5.0
261 reviews · Score: 100/100
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2026 Rankings
Best Solar Installers in Castle Hill
Compare the top solar installers in Castle Hill & Sydney, NSW — ranked by our composite reputation score.
Updated July 2026 · Based on 2,500 real Google reviews across 37 solar installers
Top Solar Installers in Castle Hill & Sydney, NSW
We've analysed 2,500 real Google reviews to rank the best solar installers in Castle Hill. Businesses are ranked by our composite reputation score combining Google ratings, review volume, and online presence — last updated July 2026.
The best solar installers in Castle Hill, NSW are iSpark Electrical - Lucky Solar (5.0★, 261 reviews), Hills Solar (5.0★, 205 reviews), Hills Natural Solar (5.0★, 113 reviews), AHE Group (4.9★, 116 reviews) and Bangar Energy - Solar Panels & Battery Storage system Installers (5.0★, 96 reviews). Each is ranked by an independent reputation score from real Google reviews (2,500 reviews analysed across 37 businesses) — see the full top 37 below. Rankings last updated July 2026.
#5
Bangar Energy - Solar Panels & Battery Storage system Installers
5.0
96 reviews · Score: 81/100
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#9
Your Green Planet
4.9
114 reviews · Score: 75/100
"The installation team was prompt, fast, efficient and clean."
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#11
POWERGRID SOLAR
5.0
77 reviews · Score: 75/100
"Prompt quote, installation and professional guidance."
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#13
Fordan Solar and Engineering
5.0
41 reviews · Score: 73/100
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#16
Blue Tech Energy NSW
5.0
21 reviews · Score: 73/100
Blue Tech Energy NSW 5.0(21)Solar energy companyOpens soon · 9 am · 0423 346 551
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#27
Planet Solar
4.9
41 reviews · Score: 64/100
"On time, hassle free, professional installation of solar battery."
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#28
Alexa Energy Group
4.9
23 reviews · Score: 64/100
Alexa Energy Group 4.9(23)Solar energy company · Level 5, Nexus Building, 4 Columbia Court, NorwestOpen · Closes 5:30 pm · +61 412 244 170
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#29
RK Solar & Consulting Services
4.6
245 reviews · Score: 61/100
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#32
Sunday Solar
4.8
44 reviews · Score: 46/100
Sunday Solar 4.8(44)Solar energy company · Nexus Building, Level 5/4 Columbia CtClosed · Opens 9 am Mon · (02) 8860 6404
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#33
Galeon Solar
4.7
26 reviews · Score: 46/100
"Oscar and the team is very professional and reliable, highly recommended!"
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#34
Utility Solar- Renewable Energy at Your Doorstep
4.0
12 reviews · Score: 27/100
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#36
SunSolar Energy Pty Ltd - Solar Installation Company Norwest NSW
1.5
8 reviews · Score: 12/100
SunSolar Energy Pty Ltd - Solar Installation Company Norwest NSW 1.5(8)Solar energy company · · 4 Columbia CtOpen · Closes 7 pm · 1300 306 122
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Frequently Asked Questions
Common questions about solar installers in Castle Hill.
Who are the best solar installers in Castle Hill?
We've ranked the top 37 solar installers in Castle Hill, NSW based on our composite reputation score combining Google ratings, review volume, and online presence. Our rankings are updated daily.
How do you rank solar installers in Castle Hill?
Our rankings use a composite reputation score that weighs Google star rating, review volume, and online presence (website + contact details). This gives a more complete picture than star ratings alone.
How many solar installers are there in Castle Hill?
We track hundreds of solar installers across Castle Hill and the wider NSW area. This page shows the top 37 based on their online reputation.
How can I improve my solar installer business ranking in Castle Hill?
The best way to improve your ranking is to consistently collect genuine customer reviews. Businesses that actively manage their online reputation typically see 2-3x more enquiries. Tools like Starworks can automate this process.
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