Getting Renovation Quotes: What to Ask Before You Hire a Contractor

The questions you ask before hiring a contractor do more to shape how the project goes than almost anything else — more than the exact price, in most cases. A vague conversation up front tends to produce a vague quote, which tends to produce disagreements later. Here's what's worth asking, and why.

What exactly is included?

Get a clear, written answer covering scope, materials specification, waste removal, and making good after the work. This is the single most important question — see our guide on comparing quotes properly for why an unclear scope is how a cheap-looking quote turns out not to be.

What's the payment schedule?

Ask how the total is staged — a reasonable deposit for materials, then payments tied to progress, not the majority upfront. See our full guide on deposits and contracts for what's normal and what's a red flag.

What's the realistic timeline?

Ask for a genuine estimate, including any known lead times for materials (kitchen units, stone worktops, bespoke joinery) — and ask what happens to the schedule if something's found once work starts.

How will changes be handled?

Almost every project has at least one thing that changes from the original scope. Ask upfront how a variation gets priced and approved, so it doesn't become a dispute later.

Are you insured, and what's the guarantee?

Ask about public liability insurance covering the work in progress, and what guarantee applies once it's finished — get both in writing. A contractor who does this routinely will answer without hesitation.

Can I see recent, similar work?

Recent examples of comparable completed projects — and ideally speaking to a previous customer — are one of the most reliable quality signals available, more so than the price alone.

Who is actually doing the work?

Ask whether the person quoting is doing the work themselves or subcontracting it, and if subcontracted, who's responsible for quality and timeline.

What would make you walk away from this quote?

Watch for hesitation, vagueness, or pressure to decide immediately — see our companion guide on red flags when hiring a builder for the specific signs worth taking seriously.

How to ask without it feeling like an interrogation

These questions read as a list, but in a real conversation they fit naturally into a normal discussion about the project — most reputable contractors expect to be asked most of them and will answer as a matter of course. A useful way to frame it: "Before I compare this with other quotes, can you talk me through exactly what's included, how payment works, and what happens if something unexpected comes up?" — one open question that naturally covers most of the ground above, rather than working through a checklist out loud.

Questions specific to the type of project

• Structural work (removing a wall, an extension, a loft conversion): who is arranging the structural engineer's calculations and building control sign-off — is that included in the quote, or a separate cost?
• Kitchens and bathrooms: what happens if old pipework or wiring behind the units/tiles turns out not to meet current standards — is that a variation, or already assumed in the price?
• Anything involving a period property: does the quote account for the extra time and materials that period-appropriate methods (lime plaster, matching joinery) typically need — see our guide on what affects renovation prices for why this genuinely changes cost.

Before you agree anything

Once you're ready to move forward, our guide on preparing for a contractor covers what to sort out before the first day on site.

How many quotes should you actually get?

Three is the usual recommendation, and it's a reasonable default — enough to see a genuine spread of price and approach without the comparison itself becoming a project. For a smaller job (a single room, straightforward scope) two considered quotes from contractors you already trust can be perfectly reasonable. For anything structural, or where you don't already have a trusted contractor, three to four gives a much more reliable picture of what "normal" looks like for your specific job, and makes an outlier — unusually high or low — much easier to spot.

Get the answers in writing, not just spoken

A confident verbal answer to every question above is a good sign, but it isn't the same as having it in writing. Ask for the key points — scope, payment schedule, timeline, what's excluded — to be reflected in the written quote itself, or at minimum confirmed by email afterwards. This isn't about distrust; it's that memory of a verbal conversation fades and differs between people, and a written record is what actually protects both sides if a disagreement comes up months into the project.