A raised spa built into the corner of an in-ground pool, sharing a bond beam, a spillover edge and often the same filtration equipment, is one of the most common combination structures across Newcastle and Lake Macquarie backyards from the 1980s and 90s. When it’s time to remove the pool, the spa almost never comes out as a separate project. The honest answer to “one job or two” is that it’s one job, but not necessarily one price, because a bonded spa changes both the demolition sequence and the scope in ways a standalone pool doesn’t.
Why a Pool and Spa Combo Is Usually Treated as a Single Structure
Most raised spas attached to a pool were built at the same time, on the same footings, sharing a common bond beam or at minimum a poured concrete wall that both structures lean on. Even where the spa sits slightly higher, on its own raised plinth with a spillover edge cascading into the pool, the two shells are typically tied together with reinforcing steel that runs continuously between them. Structurally, that means you can’t demolish one half cleanly without disturbing the other; breaking out the pool wall that the spa’s plinth is keyed into risks destabilising the spa structure before it’s even been touched.
This is different to a genuinely freestanding spa a few metres away from the pool, connected only by a paved surround. That kind of standalone spa or plunge pool is its own scope entirely, and our spa and water feature removal guide covers that scenario. A bonded, spillover-edge spa is the case this page is about.
What Changes in the Demolition Sequence
On a standard concrete pool-and-spa combo, the practical sequence a contractor follows is:
- Drain both structures, managing discharge according to council trade waste or stormwater requirements, since a spa’s smaller volume drains faster but often through the same plumbing line as the pool.
- Isolate and cap shared plumbing. Pool and spa combos frequently share a filtration and heating circuit, sometimes with a single pump and filter servicing both, plus a spa blower or jets on a separate line. Every one of these has to be identified, disconnected and capped before demolition starts, not discovered halfway through.
- Break the spa shell first, generally, working from the higher structure down into the pool, so machinery isn’t reaching over an intact spa wall to get at the pool beneath it. On some layouts the reverse sequence makes more sense, which is a site-specific call for the contractor and excavator operator to make on the day.
- Break the shared bond beam and pool shell, cutting and separating reinforcing steel as the concrete comes apart, exactly as on any concrete pool removal.
- Excavate and cart the combined rubble, which is genuinely more material overall than a same-sized standalone pool, since the spa’s own walls and floor add to the tonnage.
- Backfill and compact the full combined excavation footprint in layers.
Where the pool is fibreglass and the spa is a separate raised concrete or masonry structure sitting against it, which is common on 1990s and 2000s builds, the sequence splits by material: the fibreglass shell is cut or lifted, the masonry spa structure is broken out with a hydraulic breaker, and the two waste streams are handled and disposed of separately even though the physical job happens in one visit.
Does an Attached Spa Cost More to Remove Than the Pool Alone?
Yes, but the increase is rarely proportional to the spa’s small footprint. A typical raised spa is only a few square metres, far smaller than the pool it’s attached to, yet it adds cost disproportionate to its size for three reasons: the extra plumbing isolation work, the additional concrete tonnage from a solid-walled structure (raised spas are often more heavily reinforced than a pool floor, since the walls carry water pressure on all sides rather than one), and the more careful, staged breaking sequence needed to avoid undermining either structure while the other is still standing.
As an indicative guide only, factor an extra $1,500-$4,000 on top of a comparable standalone concrete pool removal quote for a typical bonded spa addition, more if the spa sits on an elevated plinth with its own footings, less if it’s a simple low step-up sharing the pool’s coping. These figures are region-general estimates; the only way to get an accurate number is a site inspection, since the exact construction of the shared structure is what actually drives the price. Our pool removal cost by pool type guide sets out the base ranges this figure builds on, and our concrete vs fibreglass removal comparison explains why construction type drives cost more than almost anything else.
Shared Plumbing: The Detail That Catches People Out
The single most common surprise on a combo job isn’t the concrete, it’s the plumbing. A shared spa blower, a heat pump plumbed to service both bodies of water, or a single skimmer and return system feeding both the pool and the spillover spa all need to be traced back to source before anything is cut. Getting this wrong means a line left live and pressurised when demolition starts, or a pump and filter that the homeowner actually wanted to keep for a future feature getting demolished along with everything else.
Before booking a combo removal, walk the site with your contractor and point out:
- Where the pump, filter and any heater or heat pump are located, and whether they service the pool only, the spa only, or both
- Whether there’s a spa blower or air jets, which run on their own dedicated line
- Any shared skimmer box or return jets that draw from both bodies of water
- Whether you want any of this equipment salvaged before demolition, since a heat pump or filter in good condition sometimes has resale or reuse value
Does the Spa Need Its Own Council Approval Consideration?
Generally no, beyond what already applies to the pool. If the combined structure is registered as a single pool on the NSW Swimming Pool Register (spas over a certain depth attached to a pool are typically captured under the same registration), removing both together and deregistering once is the normal outcome. Whether the job proceeds as exempt development, complying development or needs a development application depends on the site and the relevant council, City of Newcastle, Lake Macquarie City Council or Maitland City Council, so confirm with council or a private certifier before locking in a date, particularly if the spa sits closer to a boundary than the pool itself.
What About Older Fibro Spa Surrounds?
Raised spa structures built through the 1970s and 80s sometimes used fibre cement sheeting as decorative cladding on the spa’s exterior walls, material that predates the 1990 asbestos-free cutoff and needs testing before anything is disturbed. This is assessed the same way as any other suspect material on an older pool site: tested first, and any confirmed asbestos-containing material handled only by a licensed asbestos removalist, priced and scheduled separately from the pool and spa demolition itself.
Pool and Spa Combo Removal: Frequently Asked Questions
Can we keep the spa and only remove the pool?
Structurally, sometimes, if the spa has genuinely independent footings and the shared wall can be safely separated with new support built in. In practice this is unusual and adds engineering cost that often exceeds just removing both together, so most owners in this situation choose to remove the full combo and consider a smaller standalone spa or plunge pool later if they still want one.
Is the shared filtration equipment always destroyed in the process?
Not necessarily. If a pump, filter or heat pump is in reasonable condition and you want to keep it (for a future spa, a rainwater system, or resale), tell your contractor before the job starts so it can be disconnected carefully rather than demolished with the concrete.
Does a spillover spa add much extra time to the job?
Usually a partial day rather than a whole extra day, on top of a standard pool removal timeline. The bigger factor is plumbing isolation, which needs to happen properly regardless of how small the spa footprint is.
How do we get an accurate price for our specific pool and spa combo?
Send photos of both structures, including the spa’s plinth or step-up and any visible plumbing or equipment nearby, through the online quote form. That gives a realistic early steer, and a free site inspection confirms the exact scope and price.
Get a Price for Your Pool and Spa Removal
Every combo is a little different, in construction, in shared plumbing, and in how the two structures are actually tied together. Get a free quote with a few photos of your pool and spa, and you’ll get an honest, itemised figure covering the whole job, not just the pool.