About Us

Stronger Than Ever

Our family business started in 1986 with just the two of us — Greg, a woodworking craftsman, and Kim, a business manager. We built our reputation restoring historic doors, windows, trim, and cabinetry. We loved the work, and we learned something important early on:

No two openings are ever the same.

Historic homes rarely follow standards. Every door opening was different, and that made restoration beautiful — but also expensive and difficult for homeowners to afford.

In 1999, Greg set out to fix that. He designed a better way: a custom jamb system that could correct irregular openings while preserving original doors. It did not have a name yet, but it solved a major problem.

Making restoration practical, repeatable, and affordable.

We shifted our business to focus on doors and windows, combining standard installations with custom-built solutions for historic homes. Through years of real-world installations and five design iterations, that system became what is known as StrongJamb.

In 2015, we incorporated as ProSpeed Security Door Jamb Systems, Inc. Our son Joseph became an integral part of the business, and we brought StrongJamb to the Dayton, Ohio market.

We kept working through COVID, continuing installations and refining what we built. In 2021, our family faced serious challenges, but we did not give up. During that time, Greg and Joe developed something new: the Armor Plate.

A faster, simpler way to reinforce the weakest point in modern door frames. Best of all, the Armor Plate maintains the aesthetics of the StrongJamb Full Frame while allowing more adjustment and superior security for an aftermarket security plate.

That became the StrongJamb Armor Plate — patent pending, and ready for today's residential and multifamily markets.

Questions, or want to talk about a custom project? Call Joe at 937-902-5927, or watch how it all works on our YouTube channel.

Little but mighty!

The Armor Plate is a formidable first line of defense for any ordinary, industry standard jamb!

Using our Original StrongJamb System as a guide, and our combined fifty years of door installation experience, we invented a way to retrofit our original strike plate reinforcement in the original system into this smaller more versatile reinforcement plate. Even after a break in, our Armor Plate fixes and secures the opening.

We have spent our years observing how doors fail, and what we noticed was that they tend to break at the deadbolt and latch on the door jamb/frame. That’s when we began to devise a way to retrofit the strike reinforcement plate in our StrongJamb System into a very similar plate that can be used on it’s own on any door, and can be installed by anyone willing to pick up a drill and a router. That’s how the Armor Plate was born!

Another thing we really wanted to improve was how the The Armor Plate looks. Maybe you've noticed that doors with security measures attached, are Ugly! Not so with the StrongJamb Armor Plate! And, the strength surpasses any attached security devise on the market today.  Patent pending, StrongJamb Armor Plate is a quarter inch steel plate that is machined to accommodate for most 2-1/4 inch  residential security bolts and door handles, making this a versatile, customizable product for all decorative and functional needs. The holes located in the rear of the plate allow for additional 3 inch or longer length screws, which transfers blunt force toward the center of the structural part of the wall, rather than the edge.    A truly integrated security door frame plate, which is quickly mortised into the jamb, becoming the reinforcement that you would expect from a security door.  The process is quick and easy to install with a simple jig and router. Not only does it add a considerable amount of strength to the existing jamb, it also gives you extra adjustment for a smooth locking door, and it can clean up years of scared ugly jambs that have been abused with many sets of hardware and amateur installations.

WATCH US PUT THE ARMOR PLATE TO THE TEST: