How to Verify a Construction Supplier Before Paying

1. Check Their Physical Location

A legitimate supplier has a real, physical business location. Before placing a large order:

• Visit their premises — see their stock, yard, or warehouse in person.
• Check Google Maps — search for the business name and look for photos, reviews, and a verified location pin.
• Be wary of suppliers with no physical address or those who only operate via WhatsApp/social media.

2. Verify Business Registration

Ask for and verify these documents:

• Business registration certificate — from the Registrar of Companies
• KRA PIN certificate — confirms they are tax-registered
• County business permit — shows they are licensed to operate in that location

You can verify a business's KRA PIN on the KRA iTax portal to confirm it matches the business name.

3. Check Online Reviews and Reputation

• Google reviews: Look for businesses with multiple reviews over time. Be cautious of those with zero reviews or only 5-star reviews posted in a short period.
• Ask in construction groups: Facebook groups like "Building a House in Kenya" are excellent for getting honest feedback about suppliers.
• Check JengaHub: Browse verified suppliers on JengaHub where businesses are listed with their details and contact information.

4. Start with a Small Test Order

Before committing to a large order, test the supplier:

• Place a small order first (e.g., 10 bags of cement instead of 100)
• Check the quality of materials delivered
• Verify they deliver on time
• Confirm the quantity matches your order
• Only scale up after you're satisfied

5. Verify Product Quality

• KEBS mark: All construction materials sold in Kenya must have the Kenya Bureau of Standards (KEBS) Diamond Mark. Check for it on cement bags, steel bars, pipes, etc.
• Brand authenticity: For branded products like cement, check that packaging matches the official brand design. Counterfeit products often have subtle differences in logo, colour, or text.
• Weight and dimensions: A 50kg bag of cement should weigh 50kg. Steel bars should match their stated diameter. Bring a tape measure and scale to spot-check.

6. Use Safe Payment Methods

• Pay to a business account: Send money to the company's bank account or M-Pesa business number (Buy Goods/Paybill), not a personal number.
• Get a receipt: Always get a proper receipt or invoice for every payment. It should include the company name, KRA PIN, items ordered, quantities, and total amount.
• Avoid full prepayment: For large orders, negotiate to pay a deposit (20–30%) and the balance on delivery.
• Use M-Pesa for a paper trail: M-Pesa transactions create automatic records that can serve as evidence if there's a dispute.

Common Construction Supplier Scams in Kenya

• The "too good to be true" price: Prices significantly below market rate usually mean counterfeit products, short quantities, or outright fraud.
• Short deliveries: Ordering 100 bags but receiving 90. Always count deliveries in person or have your contractor verify.
• Ghost suppliers: Online-only "suppliers" who take payment and disappear. Always verify physical location before large orders.
• Counterfeit materials: Fake cement is a particular problem. It looks real but has been adulterated with sand or other fillers, weakening your structure.
• Bait and switch: Showing you one quality of material but delivering a lower grade. Inspect deliveries carefully.

Quick Verification Checklist

Related Guides

• How to Choose a Building Contractor in Kenya
• NCA Registered Contractors: What You Need to Know
• Building Materials Price List Nairobi (2026)