St Marys NSW 2760 · Western Sydney
St Marys Solar Panels and Batteries, Sized to Your Bill
Solar and battery systems for St Marys 2760, including careful assessments for older fibro and timber homes, from our team 8km away.
Local solar installers for St Marys 2760 · Rebate figures updated November 2026
- 4.9★Google rating
- SAAAccredited installers
- 10 yrWorkmanship warranty
- $0Travel fee
Solar Panels in St Marys: What Local Homes Need
St Marys has some of the oldest suburban housing in Western Sydney. During the Second World War the Commonwealth built small timber and fibro cottages here for workers at the nearby munitions factory, and many of those homes, along with post-war brick-veneer houses, are still lived in today. Newer infill homes and townhouses now sit alongside them.
Older homes are absolutely suitable for solar, but they need a proper look before anyone climbs on the roof. Fibro sheeting from that era can contain asbestos, roof battens can be undersized by modern standards, and switchboards are often original. Our site visit covers all three, and anything that needs doing is listed in your fixed quote rather than discovered on installation day.
St Marys roofs are usually low and simple, with good access and little shading from neighbouring buildings. Once the structure is confirmed, most homes fit a 6.65kW to 10.45kW system with plenty of room to spare.
Solar & Battery Systems We Recommend for St Marys Homes
Many St Marys homes are modest in size, so the 6.65kW package with a 16kWh battery is often the most cost-effective option and keeps the whole battery inside the full-value rebate tier. Larger families or homes with ducted air-conditioning are better matched to the 10.45kW package with a 28kWh battery.
Getting more from solar in St Marys
For older St Marys homes, the site visit is the most important step. Our installer will look in the roof space where it is safe to do so, check the condition of the tiles or metal sheeting, and note any fibro areas that should not be disturbed. If the roof is asbestos cement sheeting, panels cannot be fixed directly to it, and we will explain the options, which may include re-roofing in Colorbond first or using a ground-mounted frame on a larger block. Many owners combine solar with other work they have been planning, such as a switchboard upgrade, new smoke alarms or replacing an old electric hot water system with a heat pump. Doing those jobs at the same time saves on call-out costs and means the whole electrical system is brought up to current standards in one go.
Sizing a System for Your St Marys Home
We start from your last four bills. In St Marys that usually lands on the highlighted row, then the site visit confirms roof space and shading. If an EV, pool or heat-pump hot water is coming, say so now so the inverter is sized for it.
Compare every size on the solar and battery packages page, or see how home batteries work.
Endeavour Energy Connection in St Marys
St Marys is supplied by Endeavour Energy. With older homes we often need to upgrade the meter panel or main switch before connection, and we handle the paperwork and the coordination with your retailer for the meter reconfiguration.
Endeavour’s standard export limit is around 5kW, with flexible exports of up to about 10kW for compatible inverters. See export limits by network.
- Site visit & fixed quoteRoof, shading and switchboard checked, then a written price.
- Network applicationWe apply to Endeavour Energy for you.
- Installation dayUsually one day for our SAA-accredited crew.
- Meter & handoverMeter reconfigured, monitoring set up on your phone.
Why St Marys Homeowners Choose Us
St Marys is about 8km from our Mount Druitt base, so we can usually fit a site visit in within a few days.
Every job is done by our own SAA-accredited team, priced in writing and backed by a 10-year workmanship warranty. About SimpliSolar · Warranties · Our process
What SimpliSolar customers say
“Excellent service and high quality solar battery installation.”
“Best deal in the market.”
“Extremely satisfied with their service from start to finish.”
Solar FAQs for St Marys
How much do solar panels cost in St Marys?
Packages start from $7,499 for 6.65kW solar with a 16kWh battery. The 6.65kW package we most often fit in St Marys starts from $7,499. If your switchboard or roof needs work, it is itemised in the quote so the price you sign is the price you pay.
How long does a solar installation take in St Marys?
Network approval from Endeavour Energy usually takes a few days to two weeks, and the install itself is normally one day. Homes that need a switchboard upgrade can take a little longer, as the upgrade is done before or on installation day.
Do I need council approval for solar panels in St Marys?
Usually not. Rooftop solar on a house in Penrith is generally exempt development in NSW when standard conditions are met. Some of the oldest homes in St Marys are worth checking against council heritage listings, which we do as part of the quote.
How long does solar take to pay for itself in St Marys?
Payback depends mostly on how much of your solar you use at home, because feed-in tariffs are now low. Households home during the day, or with a battery covering the evening, see the fastest returns. Every St Marys quote includes an estimated payback worked out from your own bills.
We Also Install In
Our crews work across Greater Sydney with no travel fee. Nearby areas we service from our Mount Druitt base:
Get a Fixed-Price Solar Quote for Your St Marys Home
Tell us about your St Marys home and we will call within one business day to arrange a free roof and switchboard check.
Mon–Fri 8am–6pm · Sat 9am–3pm