Waterproofing & Drainage
French Drains
A French drain intercepts water before it ever reaches your foundation — routing it away from your home instead of letting it pool against your walls or seep into your crawl space.
A French drain is a trench filled with gravel and a perforated pipe that collects water moving through the soil and channels it to a lower point away from your home. Installed around a foundation, it's one of the most effective and affordable ways to prevent water from reaching your basement or crawl space in the first place.
When You Need One
Flooding and foundation moisture problems are often the result of sloped ground directing water toward your home rather than away from it. If your property sits downhill from a neighbor's lot, heavy rain can send groundwater rushing onto your property. When the soil can't absorb it fast enough — which is common with the Triangle's clay-heavy soil — that water pools against foundation walls and eventually finds its way into a crawl space or basement. A properly installed French drain catches that water at the source and carries it to a safe discharge point before it becomes a problem indoors.
French Drain Services
- Yard drains — an economical way to prevent moisture problems before they start, catching surface water in low-lying areas of your yard
- Drain extensions — keep water from pooling against foundation walls and entering the crawl space by extending drainage further from the home
- Crawl space drains — installed alongside a sump pump to ensure water inside the crawl space is directed to a catch basin and pumped out
French drains are frequently paired with a sump pump so that any water the drain collects has somewhere to go — the drain does the collecting, the pump does the removing. Together they form a system that keeps water moving away from your home instead of accumulating around it.
Frequently Asked Questions
A properly installed French drain, built with the right gravel bed and pipe, can last for decades with minimal maintenance. The main things that shorten its life are clogging from fine sediment or roots, which is why correct installation — proper filter fabric, slope, and pipe sizing — matters more than the materials alone.
Our Customers Love Us!



“Rob and his crew are super. I had a very big project to renovate a 130-year old farmhouse. They worked diligently to put in new piers, new girders, and new joists. Then they also help to fix some frames and add subfloor. This allowed me to move on. Really enjoyed working with Rob.”
Jack C.
Mar 2025
“Very professional! They carried out their task while going the extra mile. It was obvious to me that quality is of great importance. They left it better than they found it. I would recommend them to my greatest of friends and family.”
Jerry H.
Feb 2025
“After having some minor flooding issues, we contacted Triangle Reconstruction and they were amazing in their ability to identify the issues and the best way to address it. What was most impressive was the team that came out and did the work. They were probably the most professional and organized crew we've ever seen work on our house. Brian, our rep, and Rob, the owner, regularly checked in on their work and kept us updated on the progress. I hope I never have to deal with flooding issues again, but if I do, I'll call Triangle Reconstruction again.”
Greg M.
Nov 2024
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