Rainwater tanks in Mittagong
Mittagong is the northern gateway to the Highlands, with town blocks close to the main street and larger lots on the edges towards Welby. New homes here often need a BASIX tank, and older homes regularly need pump replacements.

What to check before installing a tank in Mittagong
Homes on bigger lots around Mittagong may mix town water with tank water. If you’re adding a pump with mains changeover, check the backflow requirements with your plumber. Check bushfire-prone mapping with Council if your block backs onto bushland.
Popular tank jobs in Mittagong
The most common requests we see for Mittagong are slimline and BASIX rainwater tanks and tank pumps and filtration. Whatever the tank, it needs a level, compacted base, screened inlets and an overflow directed away from the pad. Connection to your home’s plumbing is work for a licensed plumber.
Typical cost in Mittagong
As a guide, a turnkey package including a 22,500L Australian-made poly tank, compacted crusher-dust pad preparation, delivery, pressure pump and basic downpipe connection typically ranges from $4,200 to $7,500, depending on trenching distance and pump specs. The installer will confirm an itemised price after looking at your site.
Frequently Asked Questions
Which areas near Mittagong do you cover?+
Mittagong, Welby and Braemar, plus the rest of the Wingecarribee Shire. Call 0415 770 509 if you’re not sure.
Do I need approval for a rainwater tank?+
Many above-ground rainwater tanks can go in as exempt development in NSW if they meet the set conditions (such as size, height and setbacks). Larger tanks, underground tanks or properties with heritage or other constraints may need approval, so check with Wingecarribee Shire Council or your certifier before work starts.
How Highlands Tank Pros works
Highlands Tank Pros is a local lead-matching service connecting Southern Highlands property owners with independent, licensed plumbers and rainwater tank installers. When you call or send a request, we pass your details to a local installer who contacts you to quote. The installer you’re matched with is responsible for the work, its pricing and any warranties.