9 Brothers Building Supply

9 Brothers Building Supply is a bulk mulch, sand and gravel and stone supplier serving Riverhead, New York and the surrounding region. Google lists the business under 8 categories — Building materials supplier, Crushed stone supplier, Masonry supply store, Mulch supplier — which points to a broader inventory than a single-product yard carries.

The business holds a 4.6-star Google rating from 22 reviews. That tracks close to the New York average of 4.5 across the 1,058 suppliers we list statewide.

What 9 Brothers Building Supply supplies

Bulk mulch comes in hardwood, dyed, cedar, cypress and pine bark varieties. Bought loose by the yard it usually costs well under half the per-volume price of bagged mulch at a big-box store, which is why most repeat buyers switch to bulk.

Double-ground hardwood is the common default and knits together well on slopes. Dyed mulch holds colour longer but fades unevenly. Pine bark is lighter and floats, so it travels in heavy rain. Ask how long the pile has been sitting — fresh, hot mulch can burn tender plants.

Aggregate yards carry crushed stone, pea gravel, road base, mason sand, concrete sand and structural fill. Material is graded by particle size, and the correct grade depends entirely on whether you are building a compacted base, a drainage layer or a walking surface.

Because 9 Brothers Building Supply carries several material lines, it is often possible to combine an order across products — soil, mulch and stone on one truck — rather than paying separate delivery charges to two or three different yards.

How much material you need

Mulch is sold by the cubic yard. A cubic yard of mulch weighs roughly 400–800 lbs, so a pickup can typically manage two to three yards.

As a rough guide: 1 yard covers about 100 sq ft at 3 in; 3 yards covers about 325 sq ft at 3 in; 10 yards covers about 1,080 sq ft at 3 in.

Measure your area and decide on depth before calling. Most yards will run the volume calculation for you and will flag when stepping up to a larger load actually lowers the price per unit.

Ordering and delivery

Confirm the delivery radius and fee early in the call. Two yards quoting similar material prices can land very differently once haulage is added.

Check where the truck can actually dump. Tandem trucks need overhead clearance and firm ground, and most drivers will not reverse across a soft lawn or a new driveway. If access is tight, ask whether they run a smaller truck or can leave the load at the kerb.

Pricing for bulk material is rarely published in full, since it moves with stock and season. The business website may list current products, but a phone call will get you a firm delivered number faster.

Ratings and reputation

Among the suppliers we list across New York, this rating places 9 Brothers Building Supply in the top 52%.

Across the 3 suppliers we list in Riverhead, the average rating is 4.7.

Review volume matters as much as the score. A 4.6 drawn from 22 reviews is a reasonable sample for a local yard.

Best time to buy in New York

In New York, the buying window is compressed. Yards get busiest from the first thaw through early June, and again briefly in autumn. Ordering mulch in early spring often means waiting in a queue and paying peak rates, so booking delivery before the rush — or in late autumn for spring work — usually gets both a better price and a firmer delivery date. Many yards in colder states reduce hours or close outright through deep winter, so confirm seasonal availability before planning a January or February project.

Other suppliers nearby

There are 6 other suppliers we list within a short drive, the closest being 9 Brothers Building Supply in Riverhead, roughly 0 miles away. 83 suppliers sit within a 25-mile radius of this yard.

Because haulage is such a large share of delivered cost, the nearest yard carrying your material frequently wins on total price even at a higher per-unit rate.

Buying mulch in Riverhead

We list 3 bulk suppliers in Riverhead and 1,058 across New York, spread over 383 cities and towns.

Bulk material pricing is intensely local. Trucking is a large share of the delivered cost, which is why a nearby yard usually beats a cheaper one further out once the full quote lands.