Welcome to DiamondKote®

DiamondKote®, a division of AMT Enterprises, LLC are concrete contractors based in Middletown, CT. Since 1999, our mission has been to beautify ugly concrete for our customers while saving them thousands of dollars in replacement costs. Generally speaking, it costs about half the price to repair and resurface concrete than it does to remove and replace it. In addition, the finished look can be highly artistic. In some cases, when the repair costs approach the cost of replacement, DiamondKote®, can perform this task as well. Our concrete treatments can range from a small residential stoop repair to a heavy duty industrial epoxy floor coating.


My experience with Mike & the DiamondKote team was nothing less than excellent. My first meeting with Mike was at my home to look at the job. He was on time, knowledgeable, and responsive. The work was done in a timely manner. The DiamondKote crew did a tremendous job. The results exceeded my expectations. I would highly recommend (I gave Mike’s contact info to two people already) anytime!

Michael W.
Colony Hardware Corp. Orange, CT

This spring Mike and his crew restored our pool deck which had not been touched in 15 years.  The Pool Deck Texture System in Tavern Buff that  was put over our old deck now looks brand new.  Last week we had Mike back again to restore our garage floor.  Here,  Mike put down the Diamondkote Broadcast System with vinyl chip epoxy. Again,  the floor looks absolutely fabulous and we could not be happier with the work that Mike and his crew have done for us. The products are very high in quality and they look great.   Mike and his crew they are very professional and a pleasure to work with.    Five Stars and would recommend to everyone.

Dan D.

Mike and his employees did an excellent job on 2 occasions repairing our front porch stamped concrete – Can’t even tell it was damaged or any work was done to it. Very professional and fairly priced. Will definitely use again if needed and refer to our friends.

Chris D.

Our Services

Since 1999 you can count on DiamondKote® to revamp your concrete areas.


DiamondKote® Decorative services include interior concrete repair, concrete polishing, concrete dyes, concrete acid staining and water base staining, Quartz and Chip Floors, metallic epoxy and reflector epoxy, cement resurfacing and decorative & artistic designs.


Exterior services include concrete repair, concrete resurfacing, Cement Based or Rubberized Traffic Deck Systems and decorative & artistic designs. Concrete repair services include coating removal like Kool Deck or River Stone. DiamondKote® can resurface any concrete surface- new or old, with a decorative and protective surface that will last many years.

Specialty Services

Other services include floor prep and diamond grinding, shotblast services, adhesive removal services, epoxy crack injection, urethane crack injection, structural foundation repair, fire restoration, water damage restoration, moisture vapor barriers and concrete waterproofing techniques.

Explore Our Projects

Why Do An Overlay?

Concrete, although a rigid and hard product, does have it’s weaknesses. For starters, the concrete surface is pourous and can retain stains and moisture and often promotes mold and mildew growth. The porosity of concrete also lends itself to freeze-thaw damage called “spalling”. Spalling is separation of the thin cream finish layer that lies just above the stone aggregate mix in the concrete. Expansion from freezing moisture blows apart this layer, it resembles flaking and peeling. Left untreated, it will continue deteriorating until it becomes a trip hazard and an insurance claim candidate. The DiamondKote® overlay system will protect both new and old concrete surfaces from this moisture penetration and freeze-thaw damage. The overlay will also create a stain resistant barrier that mold and mildew cannot root into, thus making it an easy clean up.

Common Mistakes

Stained and deteriorated concrete is ugly. A common mistake is covering it up with concrete paint. There is No Paint that will permanently bond to concrete. Please don’t paint your concrete. It will always peel off due to weather, moisture, and traffic and will become a continuing maintenance project. Painting concrete will end up costing you more in the long run because paint removal is done by diamond grinding, chemical removal or sand blasting. All of which are very messy and expensive. Your only solution is a Cementitious overlay system. The DiamondKote® system bonds permanently and is resistant to traffic wear, weather, and staining. The only maintenance needed for DiamondKote® is periodic cleaning and Resealing every 4-6 years at a minimal cost. With proper care, your DiamondKote® overlay will last 40+ years!

Candidates for DiamondKote®

Some of our Clients include Residential work and Commercial work, Hotels, Motels, Resorts, Churches, Funeral Homes, Retail Plazas, Super Markets, Salons, Schools, Colleges and Universities, Malls, Shopping Plazas, Commercial Kitchens, Restaurants, Food Processing, Kennels, Apartments & Condos, Office Buildings and Office Parks, Government and Municipal Work, Marinas, Beach Clubs and Associations, Condo Associations, Golf Clubs, Swim Clubs and Swim Schools, Studios, & Office Buildings

What can DiamondKote® Resurface?

Residential: Basement Floors, Garage Floors, Carports, Walkways, Stoops, Stairs and Steps, Patios, Pool Decks, Foundations, Retaining Walls, Countertops, Hot Tub Pads, Seawalls, Outdoor Kitchens

Commercial and Industrial: Entryways, Patios, Foyers, Lobby Floors, Pool Decks, Spa Decks, Bathroom Floors, Garage Floors and Parking Decks, Balconies, Column & Pier Repair, Seawalls, Parking Bollards, Warehouse Floors, Industrial Floors, Locker Room Floors, Classroom floors, Theaters, Auditoriums, Retail Floors, Bridges, Runways

Areas Served

Serving CT, MA, RI

In CT we serve Hartford County, Fairfield County, Middlesex County, New London County, Farmington Valley, Tolland County, Windham County, Litchfield County.

In Rhode Island, we serve Providence County, Bristol County, Kent County, Washington County, Newport County.

In Massachusetts, we serve Hampden County and Greater Springfield Areas, Hampshire County, Franklin County, Worcester County, Bristol County, Norfolk County, Middlesex County, Suffolk County, Essex County, Plymouth County, Barnstable County, Dukes County - Martha’s Vineyard and The Islands.

Why Choose Us

Over 20 Years Experience

We are trained specialists in concrete restoration, resurfacing and design. We specialize in the masonry application of high-tech acrylic concrete, epoxies and polymers.

Best Materials

Having experienced over 20 years of installations, we have examined the performance of many products in the industrial concrete industry for concrete repair, concrete resurfacing, and concrete coatings.

Professional Standards

We don’t put Band-Aids on problems; our finished resurfacing product carries a Residential 12-year limited warranty and a Commercial 2-year warranty

We Work With

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