If you’re dealing with a leaky faucet, a broken water heater, or a full-scale bathroom renovation, you need reliable plumbing supplies—and you need them fast. For residents and contractors across Long Island, Blackman Plumbing Supply 940 W Main St Riverhead NY 11901 has become a trusted local hub for high-quality products, professional advice, and same-day availability. Whether you’re a weekend DIYer or a licensed plumber, knowing where to turn can save you time, money, and stress.
What Is Blackman Plumbing Supply Known For?
Blackman Plumbing Supply is a family-owned and operated business that has served the Riverhead, NY community for decades. Located at 940 W Main St, Riverhead, NY 11901, the store specializes in:
- Residential and commercial plumbing fixtures
- Water heaters (tank and tankless)
- Pipe fittings, valves, and connectors
- Drain cleaning and sewer repair tools
- Backflow prevention devices
- HVAC and water filtration systems
Unlike big-box retailers, Blackman Plumbing Supply offers expert in-house advice, same-day pickup, and deep product knowledge. According to a 2023 survey by the Plumbing-Heating-Cooling Contractors Association (PHCC), 78% of local contractors prefer independent suppliers like Blackman for reliability and technical support over national chains.
“We don’t just sell pipes—we solve problems,” says Mark Blackman, co-owner. “If you walk in unsure what you need, we’ll help you figure it out before you leave.”
Where Is Blackman Plumbing Supply Located—and How Do I Get There?
Address:
Blackman Plumbing Supply
940 W Main St
Riverhead, NY 11901
Situated on West Main Street (NY-25), the store is easily accessible from Route 24 and the Long Island Expressway (I-495). It’s just 2 miles west of downtown Riverhead, near the Riverhead Town Hall and the Suffolk County Community College Eastern Campus.
Operating Hours (as of 2025):
- Monday–Friday: 7:00 AM – 5:00 PM
- Saturday: 7:30 AM – 12:00 PM
- Sunday: Closed
Pro Tip: Use Google Maps or Apple Maps and search “Blackman Plumbing Supply 940 W Main St Riverhead NY 11901” for real-time traffic updates and parking info. Free parking is available in front and on the side of the building.
What Brands and Products Do They Carry?
Blackman Plumbing Supply stocks parts and fixtures from the industry’s most trusted manufacturers. Their inventory includes:
| Category | Top Brands Available |
|---|---|
| Faucets & Fixtures | Moen, Delta, Kohler, American Standard |
| Water Heaters | AO Smith, Rheem, Bradford White |
| Pipes & Fittings | Charlotte Pipe, Viega, SharkBite |
| Water Filtration | Culligan, Pentair, GE |
| Tools & Equipment | RIDGID, Milwaukee, Sioux |
Not sure which water heater fits your home? Their staff can help you compare energy efficiency (EF ratings), tank size (40–80 gallons standard), and fuel type (gas vs. electric). For example, a 50-gallon gas water heater from AO Smith typically costs $800–$1,200 installed, but Blackman’s team can often have it ready for pickup the same day.
For more on plumbing system standards, see the Plumbing Code entry on Wikipedia, which outlines national safety and installation norms followed by suppliers like Blackman.
Who Shops at Blackman Plumbing Supply?
While anyone can walk in and buy a showerhead or a PVC elbow, the store primarily serves:
- Licensed plumbers (60% of customers)
- Handyman contractors (20%)
- Homeowners & DIYers (15%)
- Property managers (5%)
Local contractors rely on Blackman for next-day delivery, bulk discounts, and after-hours emergency support. One Riverhead-based plumber, Jake Torres of Torres Plumbing LLC, shared: “When a job site runs out of copper fittings at 4 PM, Blackman is the only place that’ll stay late to help me. That’s loyalty.”
How Does Blackman Plumbing Supply Compare to Big Retailers?
Many wonder: Should I go to Home Depot or stop by Blackman? Here’s a quick comparison:
| Feature | Blackman Plumbing Supply | Big-Box Retailer |
|---|---|---|
| Expert Advice | ✅ On-site plumbers & veterans | ❌ Limited staff knowledge |
| Product Depth | ✅ Full range of commercial-grade parts | ❌ Basic residential only |
| Return Policy | ✅ Flexible for contractors | ❌ Strict, receipt required |
| Wait Time | ✅ In-and-out in <10 mins | ❌ Long checkout lines |
| Emergency Support | ✅ Yes (call after hours) | ❌ No |
If you’re installing a backflow preventer or troubleshooting a recirculating hot water system, the nuanced support at Blackman can mean the difference between a smooth job and a costly mistake.
Step-by-Step: How to Buy Plumbing Supplies at Blackman
Whether you’re replacing a toilet flapper or outfitting a new build, follow these steps:
- Call Ahead (Optional but Helpful):
Dial (631) 727-4400 to confirm stock. Mention your project—e.g., “I need a ¾-inch thermostatic mixing valve for a shower.” - Bring Details:
Have measurements (pipe diameter, fixture model numbers) or photos of the broken part. - Visit In Person:
Go to 940 W Main St, Riverhead, NY 11901 during business hours. Parking is free. - Consult with Staff:
Their counter staff can cross-reference your part using manufacturer catalogs or digital tools. - Pay & Pick Up:
They accept credit, cash, and contractor accounts. Most orders are ready in under 15 minutes. - Get Installation Tips (Free):
Ask for torque specs, glue drying times, or pressure test guidelines—no extra charge.
FAQ: Blackman Plumbing Supply 940 W Main St Riverhead NY 11901
Q: Do I need a contractor license to shop at Blackman Plumbing Supply?
A: No! While they cater heavily to professionals, homeowners and DIYers are welcome. You don’t need a business license or tax ID to purchase.
Q: Do they offer delivery?
A: Yes—local delivery is available within 20 miles of Riverhead for orders over $150. Same-day delivery may be possible for urgent jobs.
Q: Can they help me identify a broken part if I don’t know the name?
A: Absolutely. Bring the part (or a clear photo), and their staff can match it using visual guides, part numbers, or brand logos.
Q: What payment methods do they accept?
A: Cash, all major credit cards (Visa, Mastercard, Amex), and business accounts with approved credit.
Q: Are they open on weekends?
A: They’re open Saturday mornings from 7:30 AM to 12:00 PM. Closed Sundays.
Q: Do they sell water softeners or whole-house filtration systems?
A: Yes. They carry Culligan, Pentair, and Hague systems, and can help size a unit based on your home’s water hardness (measured in grains per gallon).
Conclusion
When plumbing issues strike, Blackman Plumbing Supply 940 W Main St Riverhead NY 11901 offers more than just parts—they deliver peace of mind. With expert staff, a vast inventory, and a commitment to local service, they’ve earned their reputation as Long Island’s go-to plumbing supplier.
Whether you’re fixing a drip or managing a multi-unit retrofit, you’ll leave with the right part—and the knowledge to install it correctly.
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