How to Tell a Good Contractor Quote From a Bad One

Three contractors walk through the same room and three quotes come back. One is a single page with one number on it. One runs to eleven pages and reads like a contract. One sits in between and is the highest of the three. A contractor quote is the only document you have before anyone starts, and most of what goes wrong on a renovation is already visible in it if you know what to look for.

Below is how to read one: what a quote has to name, what a vague line item usually costs later, and the questions that separate a contractor who has thought about your job from one who has guessed at it. Written for houses and condos in Toronto and the GTA.

What should a renovation quote actually contain?

A usable quote does four things: it describes the scope in the order the work happens, states plainly what is excluded, names the products it has been priced on, and ties payments to completed stages. A document that does none of those gives you nothing to hold anyone to later.

Why do three quotes for the same job come back so far apart?

Almost always because they are not quoting the same job. One assumed the existing subfloor stays. One priced a new one. One left out the electrical upgrade the other two carried. Line the scopes up beside each other before you compare totals — the spread usually narrows, and it sometimes reverses.

The differences that move a number most are rarely the visible finishes. They are the things a contractor either allowed for or did not: levelling a floor that is out by a noticeable amount across the room, replacing a subfloor that will not hold large-format tile, an electrical panel that cannot take the new circuits, a vent that has to be re-run to reach an exterior wall. In older Toronto housing stock at least one of those is usually in play, and a quote that mentions none of them has not looked.

Ask each contractor what they assumed. The answer tells you two things at once: what is behind their number, and whether they have been in a house like yours before.

What does an allowance mean on a quote, and when is it a problem?

An allowance is a placeholder for something you have not chosen yet — tile, plumbing fixtures, lighting, cabinet hardware. Carrying a few is normal early on. It becomes a problem when the allowance is set well below what you are realistically going to pick, because the quote reads as competitive and the difference lands on you at selection time.

Items usually carried as allowances:

• Tile and stone — the widest range of any category, and the one most often set low.
• Plumbing fixtures — faucets, shower valves, the tub or the toilet.
• Lighting — fixtures and, sometimes, the number of them.
• Cabinet hardware — small individually, multiplied by every door and drawer.
• Appliances — frequently excluded outright rather than carried, which is fine as long as it is written down.

Two questions make an allowance useful instead of decorative. First: what product at what supplier is this based on? An allowance tied to something real can be checked in an afternoon. Second: is installation inside or outside the allowance? Large-format tile, a book-matched slab or a linear drain take more labour to set than the standard version, and that is a labour line, not a materials line. If the quote does not separate them, the shortfall shows up twice.

How do you compare quotes that are written differently?

Normalise them before you compare them. Write your own scope in plain language first, then check each quote against that list and add back whatever it excludes. Comparing two totals that cover different work is the most common way homeowners choose the wrong contractor and never find out why.

• Write the scope in your own words, room by room, before you read any quote.
• List what each quote excludes, then mentally add those items back to that quote.
• Check the specifications match across all three: same cabinet construction, same tile format, same counter material and edge detail.
• Check who pays for permits, inspections, disposal and any engineering letters.
• Check whether making good the adjacent rooms — the hallway floor, the ceiling below, the paint line where new meets old — is in or out.
• Compare the payment stages, not only the totals.

If one quote is missing half of that, it is not necessarily the wrong contractor — but it is an unfinished quote, and it should be finished before you sign anything.

What are the red flags in a contractor quote?

None of these alone proves bad faith. Two or three together usually mean the quote was produced quickly, and a quote produced quickly gets re-priced on your site in week three.

Is the cheapest quote actually the cheapest?

Sometimes. A lower number can reflect lower overhead, or a trade the contractor performs in-house instead of subcontracting. More often it reflects a smaller scope: fewer preparation hours, a thinner substrate, no allowance for what turns up behind the wall. The figure that matters is what you pay at the end, and that figure is set by the scope, not by the quote.

The honest reasons one quote sits higher than another are worth recognising, because they are the same items that decide whether the work lasts:

• Preparation. Levelling a floor, replacing a soft subfloor, or building out a wall that is not plumb before tile goes on it.
• Waterproofing. The membrane, sloped bed and seam detailing in a shower are invisible the day the job finishes and decisive five years later — the detail we go through under bathroom renovations.
• Protection and separation. Sealing the work area, protecting the route in and out, and keeping the rest of the house liveable.
• Coordination. Trades arriving in the right order so nothing is opened twice, which is most of what general contracting is.
• Contingency for an older house. Knob-and-tube wiring, plaster and lath, an undersized panel or a wall doing more than it looks — see the week-by-week account in what a kitchen renovation actually involves.

What should the payment schedule look like?

Payments should attach to stages you can stand in front of and verify: a deposit that releases materials, progress payments at defined milestones, and a final payment after the deficiency list is closed. Payments attached to calendar dates instead put your money ahead of the work, which is the easiest way to lose your position in a disagreement.

Two things to raise before you sign. First, ask how the final payment is released — the deficiency walk-through, the list, and what counts as closed. Second, Ontario's construction legislation sets out a statutory holdback on improvements; on a substantial contract ask your own lawyer how it applies rather than relying on either side's summary.

Does the quote say who handles permits?

It should name which parts of the scope require a building permit, who applies, and who pays the fees. Broadly, in Toronto, structural changes, new or relocated plumbing fixtures and altered window or door openings need one; replacing finishes in the same layout generally does not. Electrical work is notified to the Electrical Safety Authority either way. Confirm your own scope with the City before work starts.

In a condominium there is a second approval running in parallel and it is often the slower of the two. The corporation will usually want drawings, an engineer's letter for anything structural or for changes to plumbing, proof of insurance from the contractor, and a booked service elevator, and it will set working hours and noise windows that the schedule has to be built around. Those requirements belong in the quote, because they change how the job is staffed — the constraints we work inside on condo and apartment renovations.

What should you ask before you sign?

The paperwork answers roughly half of it. The rest comes from asking the same short list of every contractor you are considering and comparing the answers rather than the documents.

• Who is on site day to day, and who do I call when something needs a decision?
• Which parts of this scope are subcontracted, and are those trades licensed and insured?
• Can I see your liability insurance certificate and WSIB clearance?
• What happens when something unexpected turns up behind a wall — how is it priced, and who approves it before it is built?
• What is excluded from this price?
• What are the allowances based on, and does installation labour sit inside or outside them?
• How does a change get recorded — before the work is done, or on the final invoice?
• How does the job finish: who walks it with me, and when is the final payment released?

A contractor who has priced your job properly will answer all eight without hesitating, because they have already worked through them to produce the number. That, more than the format of the document, is what separates a good quote from a bad one.

If you want a second read on a quote you are holding, you can see the range of work we take on across home renovations and kitchen renovations, look through finished projects in the gallery, or get in touch.