Electric underfloor heating in Georges River
We install electric underfloor heating across the Georges River area, where half the homes are houses and the other half is mostly low rise flats. About 231 new houses a year are approved here, so more of our work goes into a slab before the pour. Winter mornings inland are properly cold, and a tiled floor holds that overnight temperature until something takes it out. So under tile heating mats in a retile and in slab heating cable on a rebuild are the two jobs.
The benefits of electric underfloor heating in Georges River
Separate houses are 51.6% of homes here and flats 36.2%, and the two halves want different things. Most of the reasons below come from the rebuild and from the river. The rest come from the flood rule, the off peak circuit and two decisions Council has taken alone.
Floor heating takes no wall and no cupboard
On 28 July 2025 a motion asked Council to encourage all new development here to be all electric. It was defeated on the night, so gas ducted and gas hydronic are still legal competitors here. In slab heating cable sits inside the floor structure, so it takes no wall, corner or cupboard. Each of those gas systems needs a flue, a gas line and somewhere to stand. The benefit is a heated room with no plant to house and no flue through the roof.
The flood rules reach into the bathroom itself
Along the Georges River and Salt Pan Creek, habitable rooms and wet areas must sit 1.4m above the flood level. A bathroom is a wet area, so that rule sets the finished floor height before anything goes into it. We set under tile heating mats out to that finished height rather than to the floor being removed. Council's stormwater policy separately asks for heating to be placed above the relevant flood level. So the benefit is a heated floor that is already at the height the rule asks for.
A second circuit for heating is common here
17,757 households here have a controlled load or off peak circuit, which is 29.7% of them. Most areas need a new circuit added before floor heating can run on the cheaper rate. Here there is a fair chance that circuit exists and only needs the load put onto it. In slab heating cable is the system that suits it, because the concrete holds the heat for hours. The benefit is that the cheap circuit is often already there, and your electrician settles it at the board.
A rebuild is the one chance at the slab
About 231 new houses a year are approved here, while the house count barely moved between 2011 and 2021. So the houses are replacements of what already stood rather than additions to the area. In slab heating cable is tied to the reinforcement, which is only possible before the concrete goes over it. The benefit on a rebuild is a heated floor through the whole ground floor at no extra height. It is also the one job where a late decision closes the option for good.
Council says a listing here reaches the interior
Not one of the 319 heritage items here lists an interior in the planning schedule. Council's own heritage page says a listing includes the interior and names floor plan layouts and internal detailing. Under tile heating mats change no layout and no detailing, because they sit inside the new tile bed. The two positions do not agree, so written confirmation is worth having before the tiler is booked. The benefit is a heated bathroom floor that leaves the fabric Council protects exactly as it is.
Most flats here stand in small older blocks
Flats are 36.2% of homes here, and most of them stand in blocks under nine storeys. A 2009 count found 1,871 strata schemes here, averaging about nine lots each and none above a hundred. Under tile heating mats go into one of those bathrooms without touching the slab the building owns. Those are small buildings run by small committees of owners rather than by a managing agent's queue. The benefit is a short approval and a scope that stays inside your own lot.
What we would install in Georges River
Most of the work is a bathroom retile, and after that it is a rebuild, because about 231 new houses are approved here a year.
A mat under the tiles
Under tile heating mats suit the flats here, about three quarters of which pre date 2011. The mat goes into the tile bed of a bathroom that is already built and stays there. Nothing is cut into the structure, which is what a small owners committee wants to hear.
Under tile heating matsCable in a slab
About 231 new houses a year are approved here on a house count that is not growing. In slab heating cable is tied in before the concrete, which is the only window there is. It adds no floor height, so the levels on the architect's drawing do not change at all.
Slab heating cables, dual coreCable in a screed
Lugarno, Connells Point and Hurstville Grove are the house belt, where a rear addition is the usual alteration. In screed heating cable goes into the topping poured over that new floor. The extra mass holds the heat longer, which suits a living room rather than a bathroom.
In screed heating cableWhy Georges River properties choose us
We install across Georges River and the rest of the Georges River area, and we size every job from your floor plans before we quote. Installation is always subject to checking installer availability, which we do before we agree a day.
How we install underfloor heating in Georges River
Plans first, then a quote
Send us the plans for your new home, renovation, office or hotel. We measure the heated areas from them, calculate the cable size and quote the materials. If you want us to install, a second quote covers the installation labour. Nothing is ordered and no day is booked until you accept.
Installation day
Once you accept and tell us the job site is ready, we agree a day, subject to checking installer availability. The floor has to be prepared and ready before that day: your own trades handle levelling, waterproofing and anything else above the slab. Our installer lays the cable or the mat, fits the thermostat, and tests the system with our own equipment before leaving site. Your tiler covers it with the screed or the tile bed.
In a strata building the path is different again
In a New South Wales strata scheme the lot boundary generally sits at the upper surface of the floor. The slab underneath belongs to the building rather than to you. We lay the mat into the tile bed instead of touching that slab, and nothing is drilled or chased into it. Installing hard flooring, and the wiring and power points that come with it, is a minor renovation under the Strata Schemes Management Act 2015. Waterproofing is carved out of that definition, so a full bathroom rebuild goes to a special resolution rather than an ordinary one. Your builder or project manager deals with the owners corporation, and we build to whatever that approval allows.
Fifteen working days, and only for one event
Fifteen working days of notice is the number that catches people out here. Working outside the standard hours needs an application for a single event, and that is the notice it takes. The construction hours themselves are 7am to 5pm, Monday to Saturday. A skip bin needs its own application and is charged by the week with no free period. Together those make the sequence of a bathroom worth fixing before it starts rather than during it. So we ask for your dates early and fit the heating into the days the floor is up.
Underfloor heating for Georges River homes
Half houses, and the half that is not
Separate houses are 51.6% of the homes here, and the area divides almost evenly between them and everything else. Flats are 36.2%, but only 16% of those sit in blocks of nine storeys or more. About 86% of the tall ones stand in Hurstville suburb alone. Mortdale, Carlton and Penshurst run 41% to 46% flats in blocks of three to eight storeys with no towers at all. So outside one town centre this is a low rise area, and a bathroom there is a straightforward job. Under tile heating mats are what goes into one, because the slab below belongs to the building.
The river edge is house country
Kyle Bay, Kogarah Bay, Lugarno, Connells Point, Peakhurst Heights, Hurstville Grove and Blakehurst run 86% to 98% separate houses. Between 52% and 69% of those homes have four bedrooms or more, and 44% to 50% of them are owned outright. That is the belt where a whole floor rather than one bathroom is worth quoting. Oatley is 71% houses around a walk up village, which puts both kinds of job in one suburb. A four bedroom house on the river edge is a different conversation, and it starts from the floor plan. There in screed heating cable can heat a whole living floor rather than one bathroom.
The rebuild is what makes this area different
The house count went from 27,150 in 2011 to 27,051 in 2021, while about 231 new houses a year were being approved. The houses are not additions to the area, they are replacements of what was already standing. That is the one job where the heating can go into the slab rather than into a tile bed. The slab has not been poured yet, so the choice is still open. It is also the one job where a late decision is expensive, since cable is tied to the reinforcement and the pour closes it. So under tile heating mats cover almost everything here, and in slab heating cable covers the rebuilds.
Winter mornings in Georges River
Sydney Airport sits nearest Kogarah, Canterbury Racecourse nearest Beverly Hills and Bankstown Airport nearest Lugarno. The three disagree by more than two degrees in July, which is why all of them are below.
- July nights
7.4°C at Sydney Airport nearest Kogarah, 5.8°C at Canterbury Racecourse, and 5.3°C at Bankstown Airport nearest Lugarno. A tiled floor sits close to that overnight, and it is the first thing a bare foot meets in the morning.
- Frost
About two nights in five years at or below 2°C at Sydney Airport, rising to 8 a year at Bankstown Airport. The overnight low is what decides how cold the floor is at seven in the morning.
- Climate zone
Zone 5 across the whole area, from Kogarah down to the river at Lugarno. Insulation under the heating is what keeps the warmth in the room, and it is sized from that zone.
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Tell us what you need done in Georges River and we will get back to you with a price as soon as we can. There is no obligation to go ahead.
Services we provide in Georges River
New home builds
Home renovations
Bathroom renovations
Apartments
Hotel bathrooms
Office buildings
Cold storage and frost heave
Suburbs we service in Georges River and surrounds
We install across the Georges River area and the surrounding localities, and we check installer availability before we agree a day. If your suburb is not listed below, contact us and we will confirm coverage.
Frequently asked questions about Georges River
Do you cover every suburb in the Georges River area?
Yes. We install across the Georges River area and the surrounding localities, including every suburb listed on this page. We check installer availability before we agree a day, which is the one condition that travels with every job. If your suburb is not shown, contact us with the address and we will confirm coverage before we quote.
What are your service hours in Georges River?
Our hours are Monday to Friday, 8am to 5:30pm, and we are closed on Saturday and Sunday. Plans and photographs can be sent at any time through the quote form on this page. If you need us on site in Georges River, the day is agreed once we have checked installer availability. It is worth sending the plans as early as you can.
Can I insulate under a timber floor in a listed house?
Yes, and the heritage schedule does not stand in the way. New or replacement floor insulation is exempt development under the state codes, with no heritage exclusion written into it. On a house with an open sub floor that is worth settling before anything is laid above. Without it a good part of the warmth goes under the house rather than into the room. Council's own heritage position is stricter than its schedule, so ask it about anything that shows.
Why does the flood level decide my bathroom floor height?
Because a bathroom counts as a wet area. Council requires wet areas as well as habitable rooms to sit 1.4m above that flood level on river frontages. That sets the finished floor before anything goes into it. The stormwater policy separately asks that heating sits above the relevant flood level too. An overland flow study puts 277 properties here above floor level in that event.
Is my Penshurst house's interior protected or not?
Yes, on Council's own stated position, even though the planning schedule does not say so. Not one of the 319 listed items here lists an interior. Council's heritage page nonetheless says a listing includes the interior and the exterior, and names floor plan layouts and internal detailing. It also says internal changes inside a conservation area need a development application or a minor works exemption. Get that written confirmation before the tiler is booked.
What changes if I am rebuilding rather than renovating?
The heating can go into the slab instead of into a tile bed. About 231 new houses a year are approved here and the house count has not grown, so nearly all of them are replacements. On a rebuild the cable is tied in with the reinforcement and the pour closes the opening. On a renovation the mat goes into the tile bed while the bathroom is open. Both work well. The rebuild is the one where the date matters.
Is one temperature reading enough for this whole area?
No, and that is why three are listed. Sydney Airport sits nearest Kogarah and records a July mean minimum of 7.4°C. Canterbury Racecourse, nearest Beverly Hills, records 5.8°C, and Bankstown Airport, nearest Lugarno, records 5.3°C. Nights at or below 2°C come about twice in five years at the airport and 8 times a year at Bankstown. The inland streets are the colder ones, so our thermostats are set there to a longer morning run.
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