Most homeowners sign a construction contract without reading past the total price at the bottom. That’s how disputes start. The real risk in any build isn’t the number on page one, it’s the construction contract allowances buried in the fine print, the change order process nobody explained, and a progress payment schedule that doesn’t match how the work actually gets done.
This guide breaks down all three, in plain language, so you can read a contract like a contractor reads it before you ever sign one.
What Allowances Actually Mean
An allowance is a dollar amount built into your contract for an item you haven’t finalized yet, things like light fixtures, flooring, plumbing fixtures, or countertops. Contractors use allowances because most homeowners sign a contract before every finish is picked out.
The problem starts when the allowance is vague. “Flooring allowance: $6 per square foot” sounds reasonable until you fall in love with engineered hardwood running $11 to $14 per square foot installed. That gap becomes your responsibility, and if it’s not spelled out clearly, it becomes a dispute.
A well written allowance clause should specify:
- The exact dollar figure and what it covers (material only, or material plus installation).
- Which line items the allowance applies to, listed individually rather than lumped together.
- What happens if your selection comes in under budget (do you get a credit, or does it stay with the builder).
- A deadline for making the selection, tied to the project schedule.
If your contract just says “allowances as discussed,” ask for specifics before signing. Vague allowances are one of the most common sources of cost overruns on custom builds and major renovations across the GTA.
How Change Orders Work (and Where They Go Wrong)
A change order is any modification to the original scope of work after the contract is signed. Moving an outlet, upgrading a countertop, adding a window, all of it should trigger a change order.
The change order process should always include three things in writing: a clear description of the change, the cost impact broken into material and labour, and your signature approving it before the work starts. If your contractor is making changes based on a verbal “yeah, that’s fine” during a site visit, you have no paper trail if a dispute comes up later.
Here’s where things typically go wrong:
- Changes get made without written approval. The client finds out the cost weeks later, at the next invoice.
- The change order doesn’t specify schedule impact. A change that seems small, like relocating a bathroom vanity, can push your completion date by a week or more once plumbing rough-in is already finished.
- Multiple small changes get bundled together informally. Each one alone seems minor. Stacked over a project, they can add 8 to 15 percent to your total budget without a single formal conversation about it.
Ask your contractor upfront how they handle change orders, in writing, before you sign the base contract. Our general contracting team walks every client through this process at the outset of a project, because clarity here prevents almost every downstream dispute we’ve seen on GTA renovations.
Progress Payments in Ontario: What’s Normal
Payment schedules should track actual project milestones, not arbitrary calendar dates. A typical structure for a custom home or major renovation in Oakville, Burlington, or the broader GTA looks something like this:
- Deposit: 5 to 10 percent on signing, covering permits, design finalization, and early scheduling.
- Foundation and framing complete: roughly 15 to 20 percent.
- Rough-in complete (electrical, plumbing, HVAC): another 15 to 20 percent.
- Drywall and interior finishing underway: 20 to 25 percent.
- Substantial completion: the balance, minus a holdback.
That last point matters under Ontario’s Construction Act. Owners are required to hold back 10 percent of the contract value for 60 days after substantial performance is certified, protecting you against liens from unpaid subtrades or suppliers. Don’t let a contractor talk you out of this holdback. It exists for your protection, not theirs.
Never agree to a schedule where a payment is due before the corresponding work is actually complete. If your contract asks for 30 percent up front before any foundation work has started, that’s a red flag worth raising immediately.
Red Flags to Watch For Before You Sign
Before signing any construction contract, run through this checklist:
- Are allowances itemized with specific dollar amounts, not lumped into one vague figure?
- Does the contract explain exactly how change orders get priced and approved?
- Is the payment schedule tied to completed milestones, not calendar dates?
- Does the contract reference the statutory holdback required under Ontario’s Construction Act?
- Is there a defined process for resolving disputes before they escalate to legal action?
- Are start and completion dates specific, with a process for documenting delays outside the contractor’s control?
If a contractor is reluctant to put any of this in writing, treat that as information. A contract that protects both parties is a sign of a contractor who plans to be around for warranty service, not just the initial build.
A Realistic GTA Example
On a recent kitchen renovation in Burlington, a client’s contract had a $4,500 cabinetry allowance. During selections, they chose custom cabinetry running $9,200. Because the contract specified the allowance covered material only, and required written sign off on any overage before ordering, the additional $4,700 was documented, approved, and invoiced cleanly at the next payment milestone.
Compare that to a project where the same scenario played out with a vague allowance clause and no written change order process. The client didn’t find out about the overage until final invoicing, well after the cabinets were installed, with no opportunity to adjust the selection or the budget along the way. Same cost difference, completely different experience, because one contract was written to prevent disputes and the other wasn’t.
FAQ
What’s the difference between an allowance and a change order?
An allowance is a budget placeholder for an item you haven’t finalized yet. A change order is a modification to the agreed scope of work after the contract is signed. Going over an allowance typically triggers a change order for the difference.
Can a contractor legally ask for payment before work is complete in Ontario?
Deposits are standard, but payments beyond the deposit should correspond to completed milestones. Ontario’s Construction Act sets out holdback requirements specifically to protect owners from paying out the full contract value before work and lien periods are settled.
How do I avoid disputes over allowances?
Get every allowance itemized with a specific dollar figure, a clear scope of what it covers, and a decision deadline written into the contract before you sign. Ask your contractor for real product pricing to base the allowance on, not a rough estimate.
Is a verbal change order legally binding in Ontario?
Verbal agreements can carry some legal weight, but they’re extremely difficult to prove and enforce if a dispute arises. Always insist on written change orders with pricing and your signature before work proceeds.
What happens if I don’t agree with a proposed change order cost?
You’re entitled to ask for a breakdown of material and labour costs, and to seek a second opinion if the number seems out of line. A reputable contractor will walk through the pricing with you rather than pressuring you to sign without explanation.