How Much Does Deck Repair or Replacement Cost in St. Louis, Missouri? [2025 Data]

The average deck repair cost in St. Louis, Missouri, is $1,904, but prices often range from $795 to $3,100. The deck size, repair type, material type, and project scope can impact how much it costs to repair your deck. Demolition expenses, railing replacement costs, and labor rates also impact the cost, so budget accordingly by using this guide.

Deck Repair Cost Factors 

Deck repair cost factors in St. Louis, Missouri, include the size of your deck, the materials you choose, the type of repair needed, railing construction, demolition, and sealing or staining the deck. 

Deck Size

Larger decks carry higher material costs and greater labor costs. To get an idea of repair costs, you can inspect your deck and measure the problem areas. Size also impacts the cost of rebuilding a deck from scratch. The average cost to build a new deck ranges between $2,500 and $20,000, or $25 to $50 per square foot. 

Materials

The cost of replacing broken boards depends on the deck materials and the best wood for your deck. In St. Louis, the humid continental climate varies throughout the year, making it important to choose a decking material that can adapt to the ever-changing weather. Different deck board materials also have varying life spans, so you’ll need to replace certain types more often than others.

Deck Repair Cost by Type 

If your deck just needs a repair or two, the cost depends on the issue. Minor cosmetic fixes will cost much less than major structural repairs. Here are some common decking issues that you may encounter when evaluating your deck for repairs.

Railing Replacement

Replacing your deck railing costs $15 to $600 per linear foot. Railings are essential safety features for raised decks, and they’re also nice to have on ground-level or floating decks to prevent accidents. Your final cost depends on the material you choose for the railing. For budget-friendly options, consider wood, plastic, stainless steel, or Trex deck railing material.

Demolition

Demolishing an old deck costs $5 to $15 per square foot. This includes removing the old materials and the demolition itself. However, disposing of the materials yourself can cut costs.

Sealing and Staining

The average cost to stain a deck professionally is between $550 and $1,250. Whether hiring out or DIYing, always follow up with a clear sealant for added protection. Be sure to stain and reseal your deck every two to three years.

When to Repair vs. Replace Your Deck

While it’s a great idea to repair rather than replace a deck when possible, there are some instances when it’s better to start fresh. Unfortunately, if your deck is in poor shape, your best option is to tear it down and rebuild. Here are some key signs that it’s time to budget for deck replacement costs.

Deck Repair Pro Costs

The cost of hiring a professional deck repair person in St. Louis depends on several factors, including local going rates, permits, insurance, and more.

Local Labor

Average costs to hire a deck repair pro in St. Louis, Missouri, fall between $85 and $430. Prices vary by project scope, with decks that require demolition and major repairs costing more than smaller issues like fixing a few broken boards. 

Permits 

The City of St. Louis requires you to obtain a building permit to repair a deck. The fee for all application types is $25, while the cost of the permit itself varies with the estimated construction cost. Here’s how much a permit fee costs based on the cost of your deck project:

• Deck projects costing $1,000 or less: $19

• Deck projects costing between $1,001 and $2,000: $23

• Deck projects costing between $2,001 and $3,000: $30

• Deck projects costing $3,000+: $10 per thousand of estimated cost

Taxes

St. Louis has a 5.45% sales tax, and the state of Missouri has a 4.225% sales tax, for a total of around 9.68%. This means you’ll pay somewhere around $185 in taxes for the average deck repair in the city. 

Cost of Living

The cost of living in St. Louis is 6% below the national average, so you may see lower deck repair quotes that reflect this lower average cost.

Tipping 

Tipping is a personal and entirely optional way of showing your appreciation to a contractor in St. Louis. If you do decide to tip, anywhere between 5% and 20% is fair game.

Does Deck Repair Increase Home Value?

Yes, repairing a deck often increases a home’s value, especially if the deck needs improvements. Fixing a structurally unsound, unattractive, and nonfunctional deck can enhance the appearance and turn an otherwise unusable space into an opportunity to gather outside, which is appealing to buyers.

An average return on investment (ROI) for replacing a deck ranges from 50% to 65% and is dependent on the types of materials used, with high-end, attractive materials bringing in the biggest ROI.

How Angi Gets Its Cost Data

Home is the most important place on earth, which is why Angi has helped more than 150 million homeowners transform their houses into homes they adore. To help homeowners with their next project, Angi provides readers with the most accurate cost data and upholds strict editorial standards. We survey real Angi customers about their project costs to develop the pricing data you see, so you can make the best decisions for you and your home. We pair this data with research from reputable sources, including the U.S. Bureau of Labor Statistics, academic journals, market studies, and interviews with industry experts—all to ensure our prices reflect real-world projects. 

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