Sales Discovery Questions for Technical Distributors: What to Ask Before You Quote

Most lost quotes in technical distribution are not lost on price. They are lost before the price is written, when the salesperson quotes the product the customer named instead of the product the job needs. Sales discovery questions are how you find out what the job needs.

Generic lists of discovery questions are written for software sales: budget, authority, timeline, pain. A drainage or building-products distributor needs different questions, because the customer's real problem is usually technical. This is the list we use, grouped by what each question is trying to find out.

What Discovery Is For

Discovery has one goal: to understand the application well enough that you could defend your recommendation to an engineer. Until you can, any product you offer is a guess, and the customer can feel it. It is the first step of the Diagnostic Sales approach: diagnose first, prescribe second.

Good discovery questions are open, specific to the application, and asked in a sensible order. They also make the customer think. When a customer says "I hadn't thought about that", you have stopped being a price list.

1. The Application: Where Will It Be Installed?

• What is the project? New build, renovation, or replacing something that failed?
• Where exactly will it sit? Bathroom, commercial kitchen, car park, loading bay, roof, terrace, basement?
• What is it draining? Rainwater, domestic wastewater, water with grease, chemicals or sand?
• If something failed, what happened? Blockage, smell, leak, cracked grating, backflow? The failure usually tells you more than the order.

2. Loads and Traffic

• What will drive or walk over it? Pedestrians, cars, delivery vans, forklifts, heavy trucks?
• Is the traffic slow or fast, straight or turning? Turning and braking wheels stress gratings and frames more than straight passes.
• Has a load class been specified? For channels and gratings in Europe the classes run from A15 to F900 under EN 1433 and EN 124. If nobody has specified one, help the customer choose and write it down.

3. Flow and Capacity

• What area drains to this point? Square metres of roof, yard or floor.
• What flow does it have to take? Normal use, peak use, cleaning with a hose, storm rain?
• What happens if it overflows? A puddle on a terrace and water in a basement are different risks and justify different products.

4. Connections and Construction

• What is it connecting to? Pipe diameter, material, outlet direction, depth of the existing pipe.
• How much build-up height is there? In renovations this decides more product choices than anything else.
• What waterproofing is used? For floor gullies, the membrane or sealing system and how the gully connects to it is where most leaks start.
• Is there a risk of backflow from the sewer? Basements and low-lying connections may need a backwater valve under EN 13564.

5. Rules, Standards and Approvals

• Has an engineer or architect specified something? Ask for the specification, not just the product name.
• Which standards apply? For example EN 1253 for gullies in buildings, EN 1433 for drainage channels, EN 1825 for grease separators. Local building rules may add requirements.
• Are there fire, sound or hygiene requirements? Fire-rated penetrations, sound insulation in apartments and cleanability in food areas all narrow the choice.

6. Maintenance and Life Cycle

• Who will clean it, and how often? A product that needs weekly cleaning will not get it in a car park.
• Does it need to be accessible for inspection?
• What has to happen when the building changes? Tiles replaced, floor raised, use changed.

7. The Decision

• Who else is involved? Installer, contractor, engineer, end client. Each will judge the product on something different.
• What matters most here: installation time, price, appearance, or the risk of a call-back?
• When does the material need to be on site?
• What would make this job go wrong for you? Installers will often tell you their real worry if you ask directly.

How to Use the List Without Interrogating the Customer

Nobody wants twenty-five questions on a phone call. Three habits keep discovery short:

1. Start with the application and the failure. Those two answers usually rule out most of the catalogue, and the remaining questions become obvious.
2. Explain why you are asking. "I'm asking about forklifts because a B125 grating will crack under them" turns a question into advice.
3. Write the answers down in the quote. A quote that states the load class, flow and connection you assumed protects the customer and you, and it is much harder for a competitor to undercut on price alone.

Make the Questions a Team Asset

In most distributors these questions live in the heads of two or three senior people. New salespeople skip them because they do not know they exist. Write them down per product group, use them in onboarding (see our distributor sales training plan), and keep them next to the product data your team already uses. Our guide to sales knowledge management shows how to structure that without building a knowledge base nobody opens.

The same structure works online. When a website or an AI sales assistant asks these questions before it recommends a product, customers arrive at the conversation already specified. That is the difference between a catalogue and a technical advisor.

Frequently Asked Questions