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Standing water in your Bel Air yard? The fix is either a swale, a French drain, or both. Here is how to tell which one your property needs. [Call (443) 955-8007](tel:4439558007) May 4, 2026 11 min read Drainage By Green Hive Crew ## In this post - [What is a drainage swale?](#what-is-a-drainage-swale) - [What is a French drain?](#what-is-a-french-drain) - [The key differences](#the-key-differences) - [When to choose a swale](#when-to-choose-a-swale) - [When to choose a French drain](#when-to-choose-a-french-drain) - [When you need both](#when-you-need-both) - [How much does a drainage swale cost in Maryland?](#how-much-does-a-drainage-swale-cost-in-maryland) - [How much does a French drain cost in Maryland?](#how-much-does-a-french-drain-cost-in-maryland) - [DIY vs hiring a contractor](#diy-vs-hiring-a-contractor) - [Common drainage problems in Harford County](#common-drainage-problems-in-harford-county) Standing water in a Maryland yard usually has one of two solutions: a swale, a French drain, or both. They look similar from the surface but solve different problems. Here is the straightforward Bel Air, MD homeowner's guide. ## What is a drainage swale? A drainage swale is a shallow, gently sloped channel cut into the surface of a yard. It moves large volumes of water across the surface, away from the house, and into a safe discharge point like a wooded edge or storm drain. ## What is a French drain? A French drain is a perforated pipe buried in a gravel-filled trench. Water enters through the gravel, flows through the pipe, and exits at a lower point. French drains pull subsurface water out of saturated soil. ## The key differences Swales handle surface flow. French drains handle saturated subsurface water. Swales are cheaper to install and easier to maintain. French drains are invisible after install and work where surface grading is not possible. ## When to choose a swale Choose a swale when you have a large surface volume of water moving across the yard, a gentle slope to work with, and room for a 2-4 foot wide channel that can blend into the landscape. ## When to choose a French drain Choose a French drain for chronic wet spots, foundation perimeter water, basement seepage, or any situation where you cannot regrade the surface. Our [drainage solutions team](/services/drainage-solutions) installs both across Bel Air and Harford County. ## When you need both Many Bel Air yards need both — a swale to move surface water plus a French drain at the foundation. We design and install combined systems that solve the problem in one project. ## How much does a drainage swale cost in Maryland? Most residential swales run $1,200–$3,500 installed depending on length, depth, and discharge requirements. ## How much does a French drain cost in Maryland? Residential French drains run $35–$60 per linear foot in Maryland, depending on depth, soil, and discharge setup. A typical 60-foot perimeter run lands around $2,500–$4,000. ## DIY vs hiring a contractor Both can be DIY for a determined homeowner with a rented trencher. Both are easier and faster to get right with a crew that has done hundreds of them. We size the system to your soil, your slope, and your discharge. ## Common drainage problems in Harford County Clay soil holds water on the surface. Rolling terrain concentrates runoff. Most Bel Air drainage projects pair a swale with a French drain plus extended downspouts. Our [hardscaping team](/services/hardscaping-design) often combines drainage work with patios or retaining walls. ### About the Author Green Hive Crew is part of the Green Hive Landscaping team in Fallston, Maryland. We do this work every day across Bel Air and Harford County. If something here did not match your situation, call us — we will walk it with you. ## Related Posts [ ![Clay Soil Drainage Fixes for Harford County, MD Properties](/assets/garden-DTQCVU79.jpg) ### Clay Soil Drainage Fixes for Harford County, MD Properties Why is your Bel Air, MD yard always wet? Clay soil. Here are the real fixes that work in Harford County's heavy clay. ](/blog/clay-soil-drainage-fixes-harford-county) ## Standing water in your Bel Air, MD yard? Green Hive designs and installs drainage solutions across Bel Air and Harford County, Maryland. Call (443) 955-8007 for a free estimate. [(443) 955-8007](tel:4439558007)[Get My Free Estimate](/contact) ### Green Hive Landscaping The Hive Standard Family-owned landscaping serving Harford County with precision, teamwork, and care. 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