Residential Exterior Drainage Repair Services

While exterior drainage may not be traditionally considered a crawl space service, it significantly impacts your crawl space’s health and integrity. Exterior drainage failures or deficiencies can result in water seepage under or through your home’s foundation, leading to standing water or flooding in the crawl space.

Why Choose Northwest Crawlspace Repair?

  • Expertise: Our team brings years of experience and expertise in exterior drainage repair and installation.
  • Quality Assurance: We use premium materials and employ industry best practices to deliver durable and effective solutions.
  • Customer Satisfaction: Your satisfaction is our priority. We strive to exceed your expectations with reliable service and exceptional results.


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(888) 246-5837

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Fill out this form and we will contact you within 24 hours.

Reasons for Exterior Drainage Problems


The natural shape of your property plays a crucial role in water distribution. Slopes, hills, and valleys determine the flow path of water around your home. Without proper management, a steep slope can channel water towards your foundation, causing flooding in lower areas. Installing a drainage system like a French drain becomes essential to mitigate these risks.

Age of Your System

Over time, exterior drainage systems age and become susceptible to clogs and damage. Drain pipes can accumulate debris or be infiltrated by roots, leading to blockages and drainage failures. Regular maintenance is essential to keep these systems functioning optimally and prevent water intrusion into crawl spaces.

Faulty Installation

Improper installation of exterior drainage pipes can result in significant issues, including flooding in crawl spaces. Misplaced drain pipes or negative elevation can cause water backflow, leading to water infiltration. Professional installation by experienced contractors is crucial to avoid such mishaps.

Lack of City Infrastructure

In some areas, the absence of proper storm drains exacerbates drainage problems. Without adequate city infrastructure, residents contend with flooding and saturated ground during heavy rainfall. Implementing effective exterior drainage solutions becomes imperative to address these issues.

Exterior Drainage Services We Provide

French Drain Installation

Our French drain systems utilize perforated pipes to redirect water away from problem areas. By employing gravity, water is channeled to designated drainage points, such as streets or catch basins, preventing water accumulation around your home's foundation.

Foundation Drain Replacement

Foundation drains are crucial for preventing basement or crawl space flooding. Over time, these systems can fail, leading to water penetration. We offer professional replacement services to ensure your basement or crawl space remains dry and protected.

Gutter Downspout Drains

Proper downspout drainage is essential for diverting water away from your home's foundation. We provide installation, inspection, and repair services for gutter downspout drains to maintain efficient water management around your property.

Catch Basin and Sump Pump systems

For properties with challenging topography, we offer catch basin and sump pump solutions to collect and remove excess water. Our systems efficiently channel water away from your home, mitigating the risk of flooding and water damage.

Our Reviews

Frank Hofford
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We recently hired Northwest Crawl Space Services to perform a complete remediation of our crawl space which had a rodent infestation. Lior initially came out and did a thorough assessment and explanation of what work needed to be done. He was very detailed in explaining all work that they would do and the subsequent follow up visits and warranty that was included in the price. The following week Robert and his crew came out to perform the work. They were punctual, courteous and extremely professional in every way. They took caution and care to make sure that the inside of our house was properly masked off and protected as they removed the entirety of the contaminated crawl space insulation etc. Robert provided me with detailed pictures of the finished work and as well as pictures of a couple water pipes that had very small leaks, which I greatly appreciated. As promised, Lior came back out two weeks later to inspect all work and make sure that there were no problems. I highly recommend Northwest Crawl Space Services!
Chris Holt
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I can not say enough good things about Northwest Crawl Space Services. Matan and his team were incredible to work with regarding our rodent infestation in our crawl space. From the bidding process, to the labor, to the follow up and communication, every aspect was professional and done correctly. I highly recommend this company for your crawl space needs.
Michael Hoiland
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Lior and his team were fantastic. They were cheaper than the big name companies and didn't try to upsell me to repairs that didn't need to be done. They took care of the problem quickly and were great with communication and photos of the project as it was being completed. They owner even did a follow up the next day to make sure the job was done correctly. I had a list of questions when the job was done and he already had them all addressed with pictures and videos of everything. They are locally owned and operated which is very important to me. Would highly recommend
Michael Hoiland
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NW Crawlspace is an exceptional company. Matan and his team are experts at repairing Crawlspaces and protecting you from rodent and water Intrusion.. Rob and Leonardo and the team take the quality of their work personally. They are going to do it right and come back to check it for you. We needed a total clean out and sump pump system installed.They worked super hard to have it done by Thanksgiving. We feel like we got a bargain after seeing all that was done. I recommend them if you want your crawlspace worked on or inspected. You will be glad you called them.
Michael Silva
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We had a sump pump fail and ended up with a crawlspace that had at least two feet of standing water. Matan of Northwest Crawlspace Services came out to inspect. After examination, he carefully explained our problem and his proposed solution using easy-to-understand, non-technical language, and then gave us a firm price quote. His professionalism made us feel very much at ease and gave us assurance that we were in good hands. The very next day, a worker was sent to pump the water out of the crawlspace so that work could begin. After the water was gone, a crew of three workers was dispatched to begin the work. Before doing anything, they took great care to install plastic sheeting to protect all of the walls and floors leading up to the crawl space access door. The crew worked diligently throughout the day and completed most of the work. Afterwards, they thoroughly cleaned up, leaving little sign that they had even been there. The following day, they came back to finish the work and replace some duct work that had been damaged by the flooding. A little later, a separate person (presumably a supervisor) came by to inspect the job. We are thoroughly satisfied by the work of Northwest Crawlspace Services and would highly recommend them to other homeowners.

Frequently asked questions

Why is proper exterior drainage important for my home?

Proper exterior drainage is essential for preventing water damage to your home’s foundation, basement, and crawl space. It helps to divert rainwater away from your property, reducing the risk of moisture-related issues such as mold, mildew, and structural damage.

Signs of poor exterior drainage include pooling water around the foundation, water stains on basement walls, cracks in the foundation, and damp or musty odors in crawl spaces or basements. If you notice any of these signs, it’s essential to address the drainage issues promptly.

Common causes of exterior drainage problems include improper grading, clogged or damaged gutters and downspouts, inadequate drainage systems, and soil erosion. Identifying the specific cause is crucial for implementing effective repair solutions.

Our experienced technicians conduct a thorough inspection of your property to identify drainage problems accurately. This may include evaluating the grading, inspecting gutters and downspouts, and assessing the condition of existing drainage systems.

We offer a range of repair solutions tailored to address specific drainage problems. These may include grading and landscaping adjustments, gutter and downspout repair or replacement, installation of French drains or surface drainage systems, and foundation waterproofing.

The duration of exterior drainage repairs depends on the extent of the problem and the chosen repair solutions. Our team works efficiently to minimize disruption to your daily routine and complete the repairs in a timely manner.

Yes, addressing exterior drainage problems can enhance your home’s curb appeal and resale value. Potential buyers are more likely to be attracted to a property with effective drainage systems in place, as it signals proper maintenance and protection against water damage.

While minor drainage issues such as cleaning gutters or adjusting downspouts can be DIY projects, it’s advisable to consult with professionals for more complex problems. Attempting DIY repairs without proper expertise and equipment could worsen the issue or lead to further damage.

To schedule an inspection or request a quote for residential exterior drainage repair, please contact our team at (888) 246-5837. We’ll be happy to assess your drainage issues and recommend the best solutions for your home.

Get Your Free Quote

Fill out this form and we will contact you within 24 hours.