Compare Deck Structural Engineers & Repair Pros in St. Louis
Vetted structural specialists—not deck builders who "can fix that."
Deck Collapses Are Preventable—With the Right Pro
Every year, decks collapse across America, causing injuries and deaths. The cause is almost always the same: structural failure that was ignored or "fixed" by someone who didn't understand load-bearing construction.
Building a deck and repairing deck structure are two different skill sets. A deck builder knows how to assemble components. A structural repair specialist knows how to assess damage, understand load paths, and ensure every connection can handle real-world forces.
The contractors in our directory have documented experience in structural assessment and repair—not just deck building. They understand why your deck is failing and how to fix it permanently.
Why Our Vetting Process Matters
- 🛡️Licensed & Insured
Every contractor carries proper structural work licensing and minimum $1M liability coverage.
- ⚠️Safety-First Assessment
Our pros evaluate entire structural systems, not just visible damage.
- ⭐Verified Structural Projects
Documented experience with post, beam, joist, and ledger repairs.
- 📋Code Compliance
Knowledge of current IRC deck codes and proper connection hardware.
Warning Signs of Deck Structural Problems
- Wobbly or loose railings
- Posts that move or feel unstable
- Bouncy or sagging deck surface
- Visible rot on posts, beams, or joists
- Ledger board pulling away from house
- Cracked or heaving concrete footings
- Rust on connection hardware
- Any movement when you walk or jump on deck
Frequently Asked Questions
How do I know if my deck has structural problems?
Warning signs include: wobbly railings or posts, bouncy or sagging deck surface, visible rot on posts or beams, loose ledger board attachment, cracked concrete footings, or any movement when you walk or jump on the deck.
How much does deck structural repair cost?
Deck structural repair in St. Louis typically costs $500-$2,000 for post replacement, $1,000-$3,000 for beam repairs, and $2,000-$5,000+ for ledger board replacement. Major structural overhauls can run $5,000-$15,000.
Can I just replace the deck boards if the structure is damaged?
No. Replacing deck boards on a compromised structure is dangerous and a waste of money. The structural components (posts, beams, joists, ledger) must be sound before any surface work. A collapse risk means immediate repair is needed.
What is a ledger board and why is it important?
The ledger board attaches your deck to your house. It carries half the deck's weight. A failed ledger board is the #1 cause of deck collapses. Proper attachment with lag bolts or through-bolts and flashing is critical.
Your Deck Should Support Your Family—Not Collapse Under Them
Get matched with a structural specialist who fixes the root cause, not a deck builder who hides it with new boards.