Dio + Co. designs and builds completely custom and elegant mausoleums and columbariums that can be delivered to and installed in Washington, District of Columbia.
A mausoleum is a free-standing cemetery building that contains the grave, tomb, or burial chamber of your loved one. Options include single crypt, double crypt, private family multiple crypt, chapel walk-in, garden/outdoor or sepulcher, classically-styled walk-in, vestibule, cemetery owned outdoor, and cemetery owned outdoor walk-in mausoleums.
Our larger mausoleums can also include additional elements like a chapel or a niche for cremated remains and can be for any number of graves. The shape, style, and color are completely customizable as well as the adornments that accompany the mausoleum.

Completely Custom Single, Double, and Multi Crypt Mausoleums

Single CryptMausoleum

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Private FamilyMulti Crypt Mausoleum
There's so much we experience in our lives that help guide the mausoleum design process. There are the big moments that shape us—graduation, a first job, falling in love and getting married, having children, seeing children grow into adulthood. When we reflect on our lives, it's these memories and milestones that may come to mind first. At Dio+Co., we care about our clients and pride ourselves in helping them leave behind a symbol of their legacy and that of their entire family.
Quality Materials Make all of the difference
Quality Granite
The construction of a mausoleum begins at the quarry, where granite is extracted from the earth and sent to mills to be cut and processed. High-grade granite is ideal for use in the construction of mausoleums because of its strength, durability, and beauty.
Foundation
The foundation of a mausoleum provides solid support for the base course and mausoleum structure. Without a good foundation, the mausoleum will absorb water and can shift with the ground, causing cracking and tilting.
- From reputable quarries in U.S. & Canada
- Hard, strong, durable
- Non-porous; moisture-resistant
- Limits vibrations
- Smooth, even surface; no cracks, pits, or bumps
- Beautiful, unique colors and vibrant patterns
- Made With 100% High-Grade Concrete
- Single Layer, Several Feet Deep
- Spread Under Entire Footprint Of Mausoleum
- Prevents Water From Entering
- Prevents Cracking And Tilting Of Structure
- Wire Mesh Keeps Concrete Intact
Base Course
The base course is a large slab of granite that rests on the concrete foundation, supporting the weight of the mausoleum and keeping it off the wet, unstable ground.
Side Walls
The side walls of a mausoleum need to have the strength and integrity to support the whole structure and, at the same time, look beautiful. The thickness and quality of the granite, along with the number of joints needed are some of the factors that go into determining the mausoleum’s durability and safety
- Single Slab Of Thick Granite For Strength And Durability
- Prevents Moisture From Entering Crypt
- Extends Beyond The Side Walls To Prevent Contact With Wet Ground
- Multiple Base Courses For Larger Mausoleums Provide More Stability And Less Flood Damage
- Up To 8” Thick High-Grade Granite For Maximum Strength
- Large Slabs Minimize The Number Of Joints, Which Strengthens The Structure
- Solid Granite With No Fillers—Lasts Longer, Won’t Deteriorate
- Walls Are Off The Ground & Supported By The Base Course So That They Do Not Absorb Moisture From Ground
Joints
The slabs of granite on a mausoleum are separated by the joints. They keep water out and provide a cushion that prevents the granite from cracking. A good joint requires high-quality adhesive and joint compound. The thinner the joint the better. With high-quality joints, the mausoleum will stay dry and last a long, long time.
Roof
The roof of a mausoleum protects the crypt from the elements. The thickness of the granite, quality of the granite, number of joints needed, and ability to drain water are critical elements that factor into a mausoleum’s longevity.
- Smaller Joint Gaps – 1/8” Or Less
- Joints Never Touch The Ground
- Won’t Absorb Moisture Or Deteriorate
- High-Quality Sealant
- Fewer Joints Required Due To Larger Granite Slabs
- Up To 12” Thick For Maximum Strength
- Large Slabs Require Fewer Joints
- Solid Granite; No Fillers...Lasts Longer With No Deterioration
- Drainage System Engineered Into Design
High Quality Mausoleum Construction
At Dio + Co. we only use the best, high-quality materials and craftsmanship to ensure that your custom mausoleum is constructed the right way. Our mausoleums are built with high-quality granite, side walls, base course, joints, roof, and foundation, which will last for centuries, even millennia!
Mausoleum built with inferior design, materials, and craftsmanship won't last as long and can even start to deteriorate in just a few years. We only source granite from quarries in North America and our mausoleums are designed and assembled in Rochester, Pennsylvania.
Dio + Co. was founded in 1934 by Michael Dioguardi, a skilled stone cutter from Rome, Italy. Since then, four generations of mausoleum builders have designed luxury resting memorials. Though technology has changed dramatically over the years, we still consider ourselves sculptors of exquisite custom carved mausoleums.
If you want your mausoleum built to last for generations, don’t settle for less than the best.
This video was created by Rome Monument, our parent company. See how our mausoleums are beautifully built to last the test of time.
Mausoleum Construction Standards.
We go above and beyond.
From adequate drainage to compliance with zoning laws, we go above and beyond to ensure your mausoleum is impeccably constructed. We are happy to explain the ordering process, how prices are determined, design customization options, mausoleum construction standards, and details for the mausoleum delivery, setting, and installation.
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What Can Be Personlized
Dio + Co. specializes in carving, engraving, etching, and sculpting personalized artwork in the design of the mausoleum we build. Make your mausoleum stand out in a crowded cemetery.
CUSTOM ARTWORK & DESIGNS
Families frequently ask us to design mausoleums that use symbols, designs, and imagery that have special significance to the deceased, as well as custom artwork created by the families themselves with the help of our designers.
CUSTOM SHAPES
The shape and size of mausoleum distinguishes it more than anything else in a cemetery. Use your imagination and think of a shape that no one else has. Then, we’ll build it just for you!
CUSTOM STYLES
Common cemetery memorials include flat (flush or lawn level) markers, upright monuments, bevel shaped monuments, slant shaped monuments, memorial benches, statues, and mausoleums. Make them uncommon with a personalized design from Dio + Co.
CUSTOM ACCESSORIES
Mausoleum accessories are added to a memorial to make it more functional, versatile or aesthetically pleasing. These custom designed elements can be attached during construction or to a preexisting mausoleum. Examples include: urns, granite inserts, bronze plaques, bronze accessories, and bases.
Include what you love
What is truly unique and special about you or your loved one? What are your interests, hobbies, and passions? We can design a luxury, custom mausoleum with the answers to these questions in mind.
Garden Mausoleum
Stained Glass
Adornments
Family Mausoleum
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Leave a permanent mark on the world