01
Business and project basics
Ask these before discussing product upgrades.
- What is the legal business name?
- What contractor license applies to this work, where required?
- Can you provide current proof of insurance?
- Who will perform and supervise the work?
02
System specification
Use the answers to compare equivalent scope.
- What exact gutter profile, size and material are proposed?
- What material specification or thickness will be used?
- How many outlets and downspouts, and what sizes?
- How will roof valleys, long runs and discharge points be handled?
03
Price, site work and warranties
Confirm what happens beyond hanging the new runs.
- Are removal, disposal and cleanup included?
- How will hidden fascia damage be priced?
- What workmanship and material warranties apply?
- What is the total written price and change-order process?
Property assessment
Ask questions that expose design assumptions
The most useful questions make the installer explain how the system handles this roof. Ask which roof planes feed each run, where valleys concentrate water, why outlets are placed in specific locations and where discharge will go. Answers should reference visible property conditions rather than a company-wide standard.
Record answers in the proposal instead of relying on conversation. If a choice such as 6-inch gutters, micro-mesh guards or an additional downspout affects cost, the scope should state the performance reason and the accompanying components.
- The installer can identify high-flow roof areas
- Gutter, outlet and downspout dimensions are stated
- Hanger attachment is described
- Fascia risk and roof-edge details are discussed
- Maintenance expectations are realistic
- Exclusions are provided before work starts
Planning the work
Organize questions by design, scope and responsibility
Begin with design and existing problems, then move to material specification, access, preparation and testing. Finish with price, schedule, payment, cleanup, warranty and service. This order reduces the chance that a low total ends the conversation before important scope differences appear.
Ask follow-up questions when an answer is absolute. “These never clog,” “seamless never leaks” and “six-inch is always better” are sales shortcuts, not property-specific explanations. Request the written basis and limitations.
Details to confirm before hiring
- What existing condition is the proposal correcting?
- Why were these size and outlet locations selected?
- What work is excluded from the total?
- How are concealed fascia problems priced?
- What test confirms correct drainage?
- What maintenance and warranty steps remain mine?
A helpful verbal promise can be forgotten or disputed. Material, layout, accessories, exclusions, change orders and warranty obligations should appear in the signed documents.
Common questions
Frequently asked questions
Should a gutter estimate show exact quantities?
Yes. It should identify approximate footage, gutter size and material, downspout count, removal, accessories and important exclusions. Written quantities make competing proposals easier to compare and reduce disagreement after work begins.
What should an installer explain about heavy-rain overflow?
The explanation should identify where water concentrates, whether the existing gutter is clear, how far flow travels to an outlet and whether outlet, downspout or discharge restrictions contribute. A larger gutter is only one possible response.
Should warranty promises be included in the contract?
Yes. Ask for the warranty provider, covered materials and labor, duration, exclusions, maintenance requirements and the procedure for requesting service. A verbal “lifetime” statement is not enough to evaluate coverage.
Editorially reviewed: August 29, 2026
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