Variation Orders: Why Renovation Quotes Grow, and How to Keep Yours in Check

A variation order, or VO, is any change to the agreed scope of work after the contract is signed. Something added, removed or swapped. Every renovation has a few. The ones that hurt are the ones nobody saw coming.

Most VOs aren't a contractor trying it on. They come from four predictable places, which means most of them can be avoided.

1. The scope was never really decided

"Kitchen cabinets" on a quote isn't a scope. How many drawers? What's inside the corner unit? Where does the dish rack go? When those questions get answered on site instead of on paper, each answer can become a VO.

What helps: sign off on drawings and a materials list before work starts. If it isn't drawn, it isn't agreed.

2. Surprises behind the walls

Hollow screed, old wiring, a pipe where nobody expected one. These are real and mostly unavoidable in older flats. Nobody can see through tiles.

What helps: ask your designer what they're worried about before hacking starts, and keep a contingency for exactly this. A good team will tell you up front which parts of the quote could move.

3. Changing your mind mid-build

You see the wardrobe going up and suddenly want a different door. Totally human. Also the most expensive kind of change, because materials may already be cut or ordered.

What helps: make decisions early and give yourself deadlines ahead of the build schedule, not during it. Pick tiles, laminates and handles before the site is busy, so you're choosing calmly instead of in a rush while workers wait.

4. Provisional sums and vague items

Some quotes include "provisional" allowances for things like lighting or tiles. If your final choices cost more than the allowance, the difference becomes a VO.

What helps: ask which items are provisional and what the allowance actually buys. If it only covers the cheapest option on the shelf, you already know where the bill is heading.

Rules for any VO that does come up

• Get it in writing, with a price, before the work is done. Never after.
• Keep a running total so the final bill isn't a surprise.
• Ask whether the change affects the timeline, not just the cost.

A handful of small, agreed VOs is normal. A pile of unexpected ones at the end usually means the planning stage was rushed. That's the stage worth slowing down for.

Want fewer surprises on your renovation?

We'd much rather have the hard conversations at the start. Tell us about your home on our enquiry page, or WhatsApp us.