You have a bathroom renovation quote.

It includes $1,500 for tapware.

Another allowance covers tiles. There is a figure for the vanity. Maybe another for the bath.

The total looks reassuringly precise.

But there is an important distinction between a price and an allowance.

Until the actual products have been selected, part of that renovation may still be based on assumptions.

That does not make allowances inherently bad. Sometimes they are necessary, particularly when parts of an existing home cannot be fully investigated before work begins.

But the more selections that can be resolved before the project begins, the clearer the real project price can become.

What Is a Prime Cost Item?

In Queensland building contracts, fixtures and fittings that have not yet been selected may be dealt with as prime cost items.

Think about products such as:

  • tapware
  • sanitaryware
  • appliances
  • some tiles
  • sinks
  • baths
  • vanities
  • other selected fixtures

Instead of the actual product cost being known when the quote or contract is prepared, an allowance may initially be included.

Later, once the item is selected, the actual cost is reconciled against that allowance in accordance with the contract.

This matters because two products performing exactly the same basic function can have dramatically different prices.

“A kitchen sink” is not really a specification. Neither is “brushed brass tapware”.

The Product Can Affect More Than Its Purchase Price

This is where renovation pricing becomes more interesting.

Changing a selected product can affect considerably more than the price of the product itself.

Consider a wall-mounted basin mixer.

It may require plumbing to be positioned differently from a conventional mixer mounted through the vanity or benchtop.

A freestanding bath can require different plumbing and installation considerations from a built-in bath.

A different oven or cooktop can alter cabinetry or electrical requirements.

Large-format tiles may change the installation methodology.

A heavier stone selection may influence cabinetry, substrate preparation or structural detailing.

Products connect to the rest of the build.

That is why choosing the actual product improves more than the shopping list. It improves the information available for planning, coordination and pricing.

What Is a Provisional Sum?

A provisional sum is slightly different.

It is generally an allowance for work where the complete cost cannot yet be determined accurately when the contract is prepared.

There are legitimate reasons these exist.

Renovating an existing home means some conditions can remain hidden until demolition or construction begins.

What is behind a wall, beneath a floor or inside an existing structure cannot always be known with complete certainty beforehand.

But again, uncertainty has a price. The more that can be investigated, specified and resolved before construction, the less of the project has to rely on assumptions.

Why Cheap Allowances Can Create Expensive Surprises

Imagine your quote includes an allowance of $40 per square metre for tiles.

You then find the tile you actually want and it costs considerably more.

Multiply that difference across the floor and wall area of a bathroom.

Then consider whether the new tile also changes the installation requirements.

Suddenly, what looked like a relatively small product choice has moved the project budget.

Now repeat the same exercise across tapware, cabinetry hardware, appliances, lighting, sanitaryware, sinks and finishes.

The gap can become meaningful very quickly.

This is why comparing renovation quotes purely by the number at the bottom can be misleading. You need to understand what that number actually contains.

Real Selections Create a More Useful Specification

The closer a renovation gets to having actual products selected, the more useful the project specification becomes.

Instead of:

Kitchen mixer allowance: $500

you can work towards:

This mixer, in this finish, from this supplier.

Instead of:

Appliance allowance: $5,000

you can define the actual oven, cooktop and dishwasher.

Now the builder can look at actual dimensions. The cabinetmaker can work from the appliance specification. The electrician can understand the electrical requirements. The plumber can see the fixtures being installed.

The supplier knows exactly what needs to be ordered.

Everyone is working from the same information.

This Is Also Why Late Changes Can Cost More

Changing your mind is allowed.

Renovations are personal, and sometimes a better idea appears after the original decision.

But the timing of that decision matters.

Changing a tap before the plumbing is installed is one thing.

Changing its position after the wall has been waterproofed and tiled is something very different.

Once work has already been completed around a selection, changing that selection can mean changing other work with it.

That is where a product change can become a plumbing change, an electrical change, a cabinetry change, a waterproofing change or a construction variation.

The goal should therefore be to resolve as much as reasonably possible before construction reaches the point where decisions become expensive to reverse.

A Better Renovation Quote Is Not Necessarily the Cheapest One

A useful renovation quote is one that accurately describes what you actually intend to build.

That means understanding:

  • the layout
  • actual fixture selections
  • cabinetry
  • appliances
  • finishes
  • allowances that remain
  • what is included
  • what is excluded
  • where genuine uncertainty still exists

A realistic $45,000 scope can be more useful than a $35,000 figure that becomes $48,000 once the real selections are made.

Clarity is part of the product.

Start Making the Decisions Before Construction Starts

At Briswest Renovations, we work with Brisbane homeowners to resolve as much of their kitchen and bathroom renovation as practical before construction begins.

That includes looking beyond broad allowances and thinking about the actual fixtures, finishes, appliances and products that will eventually form part of the finished renovation.

The earlier those decisions enter the conversation, the easier it becomes to coordinate design, product selection, trade requirements and pricing around the renovation you actually want.

And that is increasingly what our renovation planning process is designed to do: move the conversation from “something like this” towards “this is what we are actually building.”

The earlier the real products enter the conversation, the less imaginary the quote becomes.