Top solar installers in the Hills District: Your 2025 guide

Choosing the right solar installer in Sydney’s Hills District is the most critical step in your journey to lower energy bills. A quality installation from a reputable company ensures your system performs efficiently for decades, while a poor choice can lead to years of frustration and lost savings. To help you make an informed decision, we’ve analysed the top-rated local installers for 2025, focusing on customer feedback, industry accreditation, quality of products, and post-installation support.

Top solar installers for the Hills District in 2025

To determine the best solar installers for suburbs like Castle Hill, Baulkham Hills, Kellyville, and Rouse Hill, we focused on companies with a proven track record, outstanding customer reviews, and strong local presence.

AHE Group: Award-winning expertise in Castle Hill

AHE Group (Andrew Hanna Electrical Group) has cemented its position as one of Sydney’s most reputable solar installers after being named Runner-Up in the 2025 SolarQuotes Awards for Best Solar Installer in New South Wales. This recognition is based on thousands of verified customer reviews and speaks volumes about their commitment to quality and service.

Operating for over 35 years in the electrical industry and 15 years in solar, AHE Group is a family-owned business that handles all installations with its own in-house team, not subcontractors.

• Products and Warranty: AHE Group uses well-regarded brands such as Trina and Jinko solar panels, alongside Fronius and SMA inverters. They provide a 10-year workmanship warranty, giving homeowners confidence in the long-term reliability of their installation.

• Customer Reviews: Feedback consistently highlights the company’s professionalism, honest communication, and seamless process from quoting to installation. Customers note the team’s efficiency and the high quality of the components used. We found no significant negative reviews or complaints against AHE Group in our 2025 research.

• Services: Beyond solar panels, they specialise in battery storage and EV charger installations, offering a complete home energy solution.

Hills Natural Solar: A local focus with premium service

Hills Natural Solar is a local, family-run business based in the Hills District that has built a strong reputation on honesty and quality. They emphasise a customer-focused approach, avoiding high-pressure sales tactics and instead providing tailored advice.

With over a decade of experience, their in-house team of SAA-accredited electricians manages the entire process, ensuring a high standard of workmanship.

• Products and Warranty: Hills Natural Solar offers a curated selection of high-performance products, including REC, Trina, and Aiko solar panels, paired with Sungrow or Enphase inverters and Tesla or Sigenergy batteries. They provide a 10-year workmanship warranty.

• Customer Reviews: The company receives overwhelmingly positive reviews, with customers praising the excellent communication from the administrative team and the professionalism of the installers. While some feedback mentions minor post-installation grid connection queries, the overall sentiment is one of high satisfaction with both the process and system performance.

Clean Earth Solar: Unmatched warranty and customer support

For those prioritising long-term peace of mind, Clean Earth Solar stands out by offering a lifetime workmanship warranty on all their installations. This reflects a profound confidence in their installation quality. Based in the Hawkesbury region and serving Greater Sydney, they have garnered over 100 five-star reviews for their premium service.

Their team consists entirely of in-house, SAA-certified solar electricians, ensuring quality control from start to finish.

• Products and Brands: Clean Earth Solar uses reputable brands designed for Australian conditions, including high-efficiency AIKO solar panels and reliable Trina Solar panels. For energy storage, they are certified installers of Tesla Powerwall, Sungrow, and Sigenergy batteries.

• Customer Reviews: Customers consistently describe the process as smooth and professional. Reviews often mention the team’s expertise in handling unexpected structural challenges during installation and their commitment to leaving the site tidy. Our research found no pattern of complaints or issues.

iSpark Electrical: Lifetime support from local experts

iSpark Electrical is a 5-star rated team of licensed electricians with over two decades of industry experience, specialising in solar and battery systems across the Hills District, including Baulkham Hills and Castle Hill. They stand out with a strong focus on long-term customer relationships.

As a New Energy Tech Consumer Code (NETCC) Approved Seller, they offer a full suite of services from design to installation and ongoing support.

• Products and Warranty: iSpark Electrical heavily promotes a “lifetime warranty and customer support” on their work, which is a significant differentiator. They install reputable brands such as Canadian Solar panels.

• Customer Reviews: Reviews consistently praise the company for its professionalism, high-quality workmanship, and value. Customers often highlight the clear communication and excellent service provided by the team.

Case Study: A Baulkham Hills Family’s Savings The Sharma family in Baulkham Hills were facing quarterly electricity bills of over $700 due to running air conditioning and a pool pump. They engaged a local Hills District installer to fit an 8kW system using Trina panels and a Sungrow inverter for a total cost of $7,500. With the federal rebate reducing their upfront cost, their annual savings are now projected to be over $2,400. This places them on track for a payback period of just over 3 years, turning a major household expense into a high-performing investment.

SolarRun Baulkham Hills: National backing, local service

SolarRun is a national solar company with a dedicated local franchise serving Baulkham Hills and the surrounding Hills District. This structure offers the reliability and resources of a large network combined with local expertise and service. They have been recognised nationally in SunWiz’s top 20 installer awards for both residential and commercial installations.

• Products and Warranty: SolarRun provides a range of solar panels, batteries, and inverters. Customer reviews mention the successful installation of products from brands like Sungrow. Warranty specifics should be confirmed directly with the local branch.

• Customer Reviews: The company receives positive feedback for its professional and knowledgeable service. Customers note that the team is helpful from the quoting stage through to post-installation support, including assistance with grid connection.

Isolux Solar: Highly rated for value and professionalism

Operating since 2013, Isolux Solar is an Australian-owned company based in Parramatta that services all of Greater Sydney. They have built a strong reputation for providing quality systems at competitive price points.

By using a professional network of SAA Accredited electricians, they are equipped to handle a range of residential and commercial projects, including hybrid and off-grid systems.

• Products and Warranty: Isolux installs well-known brands including Jinko and Trina panels, with inverter options from GoodWe, Sungrow, and SMA.

• Customer Reviews: Customer reviews for Isolux are overwhelmingly positive. Clients frequently praise the company for being professional, efficient, and great value for money, with some noting their quotes were significantly more competitive than rivals. Excellent communication and a smooth, hassle-free process are common themes.

Innovate Electrical and Solar: The go-to for complex projects

Innovate Electrical and Solar has carved out a niche for handling large and complex residential solar and battery installations with exceptional skill. Their reviews are filled with praise for their technical knowledge, patience in answering detailed questions, and meticulous workmanship.

Based in Seven Hills, they service the wider Sydney area and are consistently rated 5 stars by customers.

• Products and Warranty: Information from SolarQuotes indicates they use reliable brands such as Trina panels and Fronius, Sungrow, and GoodWe inverters. While specific warranty details were not available, their focus on quality components from established manufacturers is a positive indicator.

• Customer Reviews: Innovate Electrical and Solar receives glowing feedback, particularly from customers with challenging installations. Reviewers frequently mention the team’s professionalism, neat work, and the impressive performance of the installed systems, even on overcast days. We found no negative reviews for the company.

MPV Solar: Decades of trust in Baulkham Hills

As a family-owned business with over 30 years of experience (established in 1992), MPV Solar offers the assurance of a long-standing local company. They service the Hills District and pride themselves on using their own in-house, accredited team for every project, guaranteeing premium workmanship.

• Products and Warranty: MPV Solar provides a 10-year workmanship warranty on their installations. They use high-quality, reputable brands for their systems.

• Customer Reviews: The vast majority of reviews are positive, highlighting the team’s professionalism, punctuality, and helpful advice. We did find a single negative review on ProductReview.com.au from 2021 related to a slow quoting process. However, this appears to be an isolated incident, with more recent reviews being overwhelmingly favourable.

What about local business awards?

The Sydney Hills Local Business Awards are a fantastic celebration of the diverse businesses that serve the community, with the 2025 winners announced on April 30. Our research of the 2025 award winners did not identify a specific category for solar installers, and none of the companies on our list were named as winners in broader trade or retail categories. For a specialised field like solar energy, industry-specific awards—such as those from bodies that analyse thousands of customer reviews—and official accreditations remain the most reliable benchmarks for quality and expertise.

How to verify your solar installer

Before signing any contract, it’s crucial to perform your own checks to ensure you are working with a legitimate and qualified professional.

• Check for SAA Accreditation: Your installer must be accredited by Solar Accreditation Australia (SAA). This has replaced the former Clean Energy Council (CEC) accreditation for installers. Using an SAA-accredited installer is a requirement for receiving government rebates.

• Use NETCC Approved Sellers: While voluntary, choosing a company that is a signatory to the New Energy Tech Consumer Code (NETCC) provides an extra layer of consumer protection. Companies like Hills Natural Solar are listed as NETCC Approved Sellers.

• Look for In-House Installers: Companies that use their own licensed electricians, rather than unknown subcontractors, generally have better quality control and accountability. AHE Group and MPV Solar are two companies that strongly promote this as part of their business model.

Making your final decision

Choosing the best solar installer in the Hills District comes down to balancing award-winning credentials, local expertise, product quality, and long-term support. AHE Group stands out for its state-wide recognition, while Hills Natural Solar offers a trusted, local-first approach. For those seeking the ultimate peace of mind, the lifetime warranties from Clean Earth Solar and iSpark Electrical are hard to beat. Meanwhile, companies like Isolux Solar are highly regarded for providing excellent value.

We recommend getting at least three quotes from these top-tier installers to compare their proposed system designs and pricing. This will empower you to select a partner who will deliver a reliable, high-performing solar system for your home.