New Location! Find us at 501 S Gilmor St, Baltimore, MD
Rent U-Carts, Dumpsters, and Buy Aggregates at Bert & Mary Supply
Bert & Mary Supply provides U-Cart rentals for small concrete jobs, dumpster rentals for debris removal, and aggregates for construction projects.
- U-Cart Rentals: Mix and pour concrete without buying bagged mix.
- Dumpster Rentals: Choose the right size for cleanouts or renovations.
- Aggregates: Use pea gravel, crusher run, or other materials for strong, durable projects.
- We also sell concrete retaining wall blocks
Building A Stronger Baltimore, One Job At A Time
Materials, Dumpsters & More - Everything You Need for the Job
At Bert & Mary Supply, we make your projects easier with U-Cart concrete rentals, roll-off dumpster rentals, quality aggregates, and sturdy retaining wall blocks—all in one place. Whether you're pouring a patio,
clearing out debris, or
reinforcing a landscape, we deliver the right materials and equipment to keep your project on track. Need concrete? Mix and haul it yourself with our U-Cart trailers. Tackling a cleanup? Our dumpsters handle everything from home renovations to office cleanouts. And when it's time to build, our aggregates and retaining blocks provide the solid foundation you need. Whatever the job, we’re here to help you get it done—faster, easier, and hassle-free.
At Bert & Mary Supply We've Got You Covered
U-Cart Concrete Rentals
Need concrete for a small project? Our U-Cart trailers let you mix and haul your own concrete, saving you time and money.
Same-Day Dumpsters
Clearing out clutter or handling a big renovation? We deliver the perfect dumpster right to your door, so you can focus on the work, not the mess.
We Sell Aggregates
From pea gravel to crusher run, we’ve got the high-quality materials you need for driveways, walkways, and more.
We Sell Concrete Retaining Blocks
Building a strong, beautiful wall? Our durable retaining blocks are perfect for landscaping and structural projects.
Our Dumpster Sizes
A SIZE FOR EVERY PROJECT
Need A Concrete Dumpster?
Looking to get rid of concrete, dirt, sod, or asphalt? Then this is the perfect dumpster for you. Our 10 yard heavy duty dumpster comes with 3 tons included!
Prices starting at
$450
Our U-Cart Rentals
Make concrete jobs a breeze
Need concrete for a small project? Rent a U-Cart and do it yourself!
U-Cart Rentals – Perfect for DIY Concrete Projects!
Our U-Cart trailers are perfect for DIYers who need small amounts of concrete. Each trailer holds up to 2 cubic yard of concrete and comes with a Honda motor to keep the concrete mixed while you drive. It’s easy, convenient, and saves you money!
How It Works:
- Reserve Your U-Cart:
Call us to book your trailer.
- Pick It Up:
Haul it with your own truck (see vehicle requirements below).
- Mix and Pour:
The Honda motor keeps the concrete mixed while you drive.
- Return It: Bring it back when you’re done.
(There is a $500-$1,000 fee if we have to pick it up or if you keep it overnight)
Need Some Aggregates?
At Bert & Mary Supply, we offer a wide range of high-quality products for construction and landscaping projects.
prices shown are by the half ton. We offer delivery in and around baltimore for a fee. you may opt to pick up your aggregate yourself.
Looking For Concrete Retaining Wall Blocks?
we sell 2x2x3 retaining wall blocks as well as wheel stops
AFTER purchase you may come by and pick up your order. we can help you load.
Reviews From Your Baltimore Neighbors
LET US INTRODUCE OURSELVES
BERT & MARY SUPPLY
At Bert & Mary Supply, we're not just a business; we're a legacy. Founded on the principles and dreams of our namesakes, we bring to Baltimore a commitment to quality, resilience, and community spirit. Our range of building materials, roll-off dumpster rentals, and construction services are designed to meet every need of our cherished residential and commercial clients. Dive deeper into our story and the values that drive us.
Proudly Serving Baltimore and Beyond
At Bert & Mary Supply, we’re proud to serve Baltimore City and surrounding areas with dependable and affordable waste removal services. Whether you’re in Downtown Baltimore, Canton, Fells Point, or beyond, we’ve got you covered.
FAQs About Bert & Mary Supply
Do you offer same-day or next-day services?
Yes, we offer same-day and next-day dumpster rentals and U-Cart deliveries, depending on availability.
Do you deliver to residential areas?
Yes, we deliver dumpsters to homes, businesses, and construction sites throughout Baltimore.
What is a U-Cart?
A U-Cart is a trailer that holds up to 2.5 cubic yard of concrete. It’s perfect for small DIY projects like sidewalks, patios, or steps.
Do I need a special vehicle to tow a U-Cart?
Yes, your vehicle must have a towing capacity of at least 7,500 lbs and a pintle receiver hitch.
Do you deliver aggregates?
Yes, we offer delivery for aggregates and other materials. Contact us for pricing and availability.
What are concrete retaining blocks used for?
Retaining blocks are perfect for building strong, durable walls for landscaping, gardens, or structural support.