Questions to Ask When Getting an Exterior Contracting Quote

An exterior contracting quote is one of the easiest documents to underevaluate. Two quotes for a full exterior — siding, soffit, fascia, eavestroughs — can differ by $10,000 and still be quoting completely different quality levels, completely different scopes, and completely different levels of care around the invisible components that determine long-term performance.

Comparing quotes on price alone is how homeowners end up with a cheap exterior that fails in five years.

“When I sit down with a homeowner to review competing quotes, the first thing I do is ask them to show me what materials each contractor specified. Nine times out of ten, the lower quotes are thinner gauge siding, no house wrap, reused flashing, and solid soffit instead of vented. The price difference isn’t profit margin — it’s the actual difference in what you’re getting. That’s the conversation most homeowners never have.”

— Roman Vesely @ Apple Roofing, certified exterior cladding specialist and renovation consultant with 15 years of experience in residential roofing, and siding installation across the Greater Toronto and Hamilton areas

Before You Compare Quotes

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Questions to Ask When Getting an Exterior Contracting Quote 1

Are you getting at least three quotes?

For a full exterior — a project that can run $20,000 to $60,000+ — three quotes is the minimum for a meaningful comparison. The first quote gives you a number. The second gives you a comparison. The third gives you enough data to identify outliers and evaluate the market.

Are all quotes based on the same scope and materials?

Before comparing prices, confirm that each contractor is quoting on identical specifications: the same siding product (brand, gauge, profile), the same eavestrough system (seamless vs. sectional, gauge), the same soffit type (vented), and the same approach to house wrap and flashing. If they’re not quoting the same thing, you’re not making a meaningful comparison.

Ask each contractor to itemize their quote so you can do a true apples-to-apples comparison.

Questions About What’s Included

What specific products are specified in this quote?

A complete exterior quote should name every product being installed:

  • Siding: brand, profile, gauge, and color
  • House wrap: brand and type
  • Soffit: vented or solid, material type
  • Fascia: replacement or capping, material type
  • Eavestroughs: seamless or sectional, gauge, profile width
  • Downspouts: size, quantity, and discharge plan

If a quote lists “vinyl siding” without a brand name or gauge, it’s hiding the quality level of the product being installed.

What a good answer looks like: A fully itemized materials list with brand names, specifications, and quantities for every component.

Does the quote include removal and disposal of existing materials?

Removing and disposing of old siding, soffit, fascia, and eavestroughs adds time and cost. Ask directly whether tear-off and disposal are included in the quote price.

Does the quote include house wrap replacement?

On a full siding replacement, house wrap should be replaced as standard. If it’s not mentioned in the quote, ask whether it’s included. A quote that doesn’t address house wrap is skipping one of the most important moisture management components of the installation.

Does the quote include new window and door flashing?

Flashing at every window and door opening is critical. Ask specifically whether new flashing is included, what type (self-adhering membrane, metal), and how it integrates with the new house wrap.

What is the policy on substrate damage discovered during installation?

When old siding and house wrap come off, rotted or damaged sheathing may be exposed. Ask the contractor:

  • Will you stop and show me any substrate damage before repairing it?
  • Is there a pre-agreed per-sheet price for sheathing replacement?
  • Will this be handled through a written change order?

A per-sheet price established upfront protects you from blank-cheque substrate claims mid-job.

What a good answer looks like: A unit price for sheathing replacement in the quote, with a documented change order process.

Questions About What’s Excluded

What is explicitly not included in this price?

Ask for a written exclusions list. Common exterior exclusions include:

  • Substrate (sheathing) repair beyond a stated allowance
  • Window or door replacement
  • Trim or decorative element work
  • Electrical fixture relocation
  • Deck or structure modifications at the base
  • Permit fees if applicable

Knowing the exclusions prevents the shock of add-on invoices at the end.

Questions About Payment

What is the payment schedule?

A reasonable exterior payment schedule: 10–25% deposit at signing, a milestone payment when materials are delivered and installation is underway, and the balance at satisfactory completion. For very large projects, an intermediate milestone payment may be appropriate.

A contractor requesting more than 30–35% before work begins warrants scrutiny.

Do you accept cheque or e-transfer?

Always pay by cheque or e-transfer. Cash-only payment removes your paper trail. Any contractor who insists on cash only should prompt serious questions.

What a Complete Exterior Quote Should Contain

  • Company name, address, registration, tax-registration number
  • Full materials list with brand names and specifications
  • Scope of work with inclusions and exclusions listed
  • Substrate damage policy and unit pricing
  • Payment schedule tied to milestones
  • Timeline: start date and estimated completion
  • Warranty: manufacturer and workmanship

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