From the Desk of By Bob Carr
If there’s standing water around your yard, a new drainage system will likely be needed.
If you’re struggling with standing water in your yard, chances are you’ve heard about French drains, dry wells, and swales. But what do they actually mean—and which one is right for your home?
The truth is, no two drainage problems are exactly alike. Each solution has strengths and weaknesses. In this article, we’ll compare French drains, dry wells, and swales so you can determine which option is best for your property.
Option 1: French Drains
French drains are perfect for your yard if water pools around the foundation of your home, or if you’re worried about your basement flooding.
When it comes to french drains, they’re created by digging a trench. This trench is then lined with fabric, filled with gravel, and fitted with perforated pipe. This pipe is responsible for redirecting water away from parts of your home that would otherwise be exposed to high levels of water.
Best for:
- Yards with heavy clay soil
- Properties with water pooling near foundations
- Homes with basements that are susceptible to seepage
Pros:
- Highly effective for long-term water redirection
- Works underground, out of sight
- Can handle significant water flow
Cons:
- More expensive than simple grading or swales
- Requires proper design and installation to avoid clogging
Typical cost: $2,850 – $15,000+ depending on length, depth, and materials.
Option 2: Dry Wells
A dry well is a big underground pit or chamber that’s filled with gravel or a plastic basin. Water gathers inside, and then slowly seeps into the surrounding soil.
Best for:
- Collecting runoff from downspouts
- Isolated problem areas
- Yards with some natural drainage
Pros:
- Handles large volumes of water in one spot
- Low visibility once installed
- Often less expensive than long French drain systems
Cons:
- Not ideal for continuous water flow
- Can clog in heavy clay soil
- Requires maintenance to stay effective
Typical cost: $1,500 – $7,500 depending on size and depth.
Option 3: Swales
Swales are shallow, grassy channels that are designed to redirect water from your house or yard.
Best for:
- Large, sloped yards
- Properties where water can be redirected downhill
- Eco-friendly landscaping designs
Pros:
- Natural-looking and eco-friendly
- Can double as part of your landscaping
- Usually more affordable than underground systems
Cons:
- Requires space and proper slope to work
- Less effective in flat yards
- May need regular maintenance to prevent erosion
Typical cost: $1,000 – $5,000 depending on grading needs and yard size.
Comparison’s
French Drains
- Best for: Constant or heavy water problems, foundation protection, basement seepage
- Visibility: Hidden underground
- Cost Range: $2,850 – $15,000+
- Maintenance: Occasional flushing to prevent clogs
- Soil Type: Works well in clay
Dry Wells
- Best for: Isolated water spots, downspout runoff
- Visibility: Hidden underground
- Cost Range: $1,500 – $7,500
- Maintenance: May need cleaning if clogged
- Soil Type: Best in sandy or loamy soils
Swales
- Best for: Redirecting surface water across large or sloped yards
- Visibility: Visible grassy channel (can be landscaped)
- Cost Range: $1,000 – $5,000
- Maintenance: Regular mowing and shaping to prevent erosion
- Soil Type: Requires slope and open ground to work effectively
Which Is Best for You?
It can be smart to consult with a drainage professional if you’re unsure of what drainage solution is best for you.
The ideal drainage solution for your home will depend on your unique landscape situation. If you’re dealing with standing water, basement seepage, or there’s water close to your house’s foundation, a French drain is probably the best option for you.
If you have isolated pools of water around your yard, especially from downspouts, then a dry well is likely a better choice for your property.
The final option, a swale, should be used whenever your yard has a natural slope, as well as sufficient yard space, in order for water to be redirected from your house naturally.
There’s no one-size-fits-all drainage solution. The “best” option depends on your soil, slope, budget, and long-term goals.
Contact TLC Inc. For Drainage Services
👉 Want to know which drainage system is right for your yard? Contact us for a free on-site assessment—we’ll walk you through the options and help you choose the best fit. You can reach us by calling (301)-900-5797, or by clicking here. We’ll even help you estimate the price of your next drainage project.