Seattle WA Basement Waterproofing

Learn what is causing your wet basement water problems. Find developed and refined solutions to keep your basement dry and healthy. Serving Seattle WA since 1996.

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    Drainage & Waterproofing Service

    When it comes to water damage in your basement or crawl space, Perma Dry Waterproofing, serving Seattle, has the permanent solution you need to fix at or below grade water problems. We also apply our same common sense approach to resolving issues with cracks in concrete foundations; downspout drains, sump pumps, and yard drainage problems.

    Interior Drainage Systems

    The Perma Dry Waterproofing basement system is designed explicitly for Northwest building practices. It’s installed to ensure that the below slab drainage cannot cause mold or air quality issues.

    Exterior Drainage Systems

    If you need a long-lasting solution to basement drainage for your property, call Perma Dry Waterproofing at the first signs of trouble. Exterior drainage diverts water away from your home, protecting it from damage.

    Sump Pump Service

    Our quiet, energy-efficient, and affordable sump pump systems have helped thousands of people drain flooded basements and avoid costly water damages to their home. Protect your basement from flooding.

    Foundation Repair

    Crack injection has been an accepted way of tackling leak and crack repairs on basement foundations and walls for many years without the need for damaging and costly exterior excavation.

    Crawl Space Encapsulation

    This crawl space sealer is securely fashioned to foundation walls and sealed at all edges and overlaps to seal off the moisture from the rest of your home. Your home will be dryer, cleaner, and healthier from the ground up.

    Basement Ventilation Systems

    Ventilation and dehumidification in your basement or crawl space get rid of the excess moisture and humidity that causes mold, dampness, musty odors, as well as chemical contaminants and allergens.

    Have A Wet Basement?

    We have been providing common sense basement drainage systems to the Seattle area since 1996, and we offer a full list of interior and exterior drainage solutions to meet your needs.

    Talk To Our Basement Drainage Specialists

    If you have water in your basement, or your planning a remodel in your basement, you’ll want to avoid future moisture issues. The first step is to give us a call and speak with a Seattle basement water intrusion specialist.

    Schedule An Estimate

    Schedule an inspection and estimate. After inspecting the situation in your basement, we can offer several common-sense solutions to your wet basement issues.

    Schedule Your Repairs

    Servicing the Seattle area with some special trips to outlying areas, Perma Dry Waterproofing is a well-regarded drainage and water repair company. We demonstrate the experience and knowledge to prove it.

    When is the best time to have my basement waterproofed?

    The best to waterproof a basement is throughout building and construction. Back then, you can seal the basement and also give appropriate water drainage at the very same time.

    Presuming this is an existing basement I would suggest dealing with the water drainage issues, observing throughout the damp season what is happening with drainage. Then in the dry period effect the fixings to the drain problems as well as water resistant the basement. Finest means to do this would be to excavate around the basement as well as use waterproofing membrane layers to the outside wall surfaces with excellent drain at the base.

    If you fail to deal with the drainage issues, you will certainly continue to have dampness troubles. Take into consideration a sump pump and also a dehumidifier with a car drain.

    Does Perma Dry Waterproofing guarantee their work?
    At Perma Dry Waterproofing, we take the time to assess the problem and determine the best way to solve it. As a result, what we make dry stays dry. In fact, we’re so confident in the quality of our work that we offer a written guarantee to back it up.

    Ask your System Design Specialists for a copy of our complete guarantee when we stop by to evaluate your situation.

    What is the best way to waterproof a basement?

    Waterproofing a basement is a really intricate concern. Basement water troubles are generally brought on by a high water table, poor landscape design, seamless gutters without extensions, weak top quality concrete floors, or absence of a drain floor tile system either on the outside or inside of the footings connected to a sump pump.

    Walk your home. Look at the slope of the dirt. It ought to in all instances incline away from the home for the initial ten feet, consisting of all that new landscape design you simply did.

    Take a look at your seamless gutters. Missing out on? Obtain some. Direct the water move a number of feet far from your house as well as see to it they can be moved, not eliminated, for trimming. They must get the water out at the very least the first 5, and also preferably much more, feet from your house.

    Next, exists a drainage system? If not, the possibility exists to install a system either inside or outside. There are benefits as well as drawbacks to both. An exterior system permits the chance to use numerous membrane layers as well as finishings to the structure, a few of which case to water-proof the wall surfaces, in contrast to water-resistant. The water drainage tube ought to lie in a prepared trench of gravel. It must have textile over it, followed by crushed rock. The backfilling process requires to be done really thoroughly.

    An interior system may call for weep holes to be drilled in the concrete block to empty the water accumulated there. Weep tubes, an indoor layer to try to water resistant, and also of training course the trench exterior. Both exterior and interior need a sump and also a sump pump.

    How do I get rid of dampness in my basement wall?

    Either moisture from the soil is permeating the walls, or moisture from the air is condensing on them. The very first can be difficult and expensive to resolve, yet extremely often it’s as easy as making sure you have working gutters with downspouts that release 10 feet or more away from the home, and that the dirt surrounding to the residence inclines away at a minimum of a 1 in 10 pitch.

    High water tables are another issue totally. That’s almost impossible to deal with in an existing house, but that doesn’t sound like your concern.

    With condensation, you require to determine the resource. Does the basement have a concrete piece? If so, the likely root cause of the moisture is humid outside air getting in through open home windows and also condensing on the walls. Shut the windows and also mechanically evaporate. It can not be said often enough – You can not dry a basement or crawlspace in a hot, humid environment by aerating with outside air. You will only introduce even more wetness in this way.

    If there’s no piece or an old split one, the ground is most likely taking place gallons of wetness a day that condenses on the wall surfaces. Cover the dirt with 6 mil plastic, and also shield that with numerous inches of gravel topped with a concrete piece. If concrete isn’t in the budget plan, a minimum of do the plastic as well as gravel.

    Why do I need to waterproof my basement?

    When you purchase a home as well as move right into the space, you might discover water damages or various other indicators of a trouble in the basement. Even if the basement does not have indicators of damages or concerns with water, it can still feel uncomfortable as well as moist in the space, making it tough to live. To repair this issue, several home owners choose basement waterproofing. Waterproofing is helpful due to the fact that it decreases the variety of threats to your building pertaining to flooding or water damage. You can find the right tools for the job.

    Drips and leakages
    Typical deterioration in your home might lead to gradual leakages as well as drips in your pipelines. Initially, you may not notice the leaks or the dripping due to the fact that it might not always have visible as well as clear signs of a problem. Having a water resistant basement gives you comfort that the damages to your residential property is limited when you do see the trouble. It likewise allows you to clean up the trouble locations promptly.

    Flooding in the Basement
    Flooding originates from a variety of various circumstances. It might take place internally from a broken or broken pipe. In this circumstance, you wish to turn off the water to your home and also repair the issue while you tidy up the flood.

    Flooding also occurs externally from a tornado or flooding in your location. In this scenario, you might require to wait for the tornado to pass prior to you start dealing with the flood in your house.

    Damage to Your Property
    No matter the amount of water in your basement, it may cause damages to your home if you do not water-proof the basement. Because the basement is near your foundation, flooding can conveniently cause problems to your foundation. By waterproofing the basement, you minimize the danger of extreme damages or the nightmares that may arise from water damage to your residential or commercial property. It limits the amount of job that might happen if a leak or significant tornado creates flooding or a leakage.

    What can I do when my basement leaks after it rains?

    It relies on where the leak is as well as how much water leaks. A recommended first step is to contact a local designer and them check your basement. For percentages of moisture/water, the concrete wall surfaces as well as floor can be repainted with a securing paint like DryLock. There is special caulking to utilize at the seam/crack where the wall surfaces satisfy the flooring. This aids on the within. On the outside, you’ll need to examine the incline of the land against the house. You may need to change the slope to motivate the water to move far from your residence. A professional landscaping business can be handy here.

    Lots of can aid with drainage troubles. If you have greater than a slim film of water layer your flooring or wall surfaces, you possibly need to have it evaluated by an expert.

    How can you make sure your basement stays dry?

    One way that aids is making use of a dehumidifier. I recommend going big, so you don’t need to empty it as often. You can likewise get dehumidifiers that drain themselves, but you need to belong for the water to go.

    Bear in mind to get a mold treatment as essential, if your basement is damp.

    Doing away with the wetness is a genuine essential for a home owner (or even a renter). The damage that can be caused by mold is rather stressful. Not just does that reason health and wellness threats, yet it also creates residential or commercial property damages, and can harm your houses resale worth.

    You can obtain the individual you are leasing from to utilize a dehumidifier if the basement is moist if you’re an occupant. If it is producing a mold issue, this is particularly true. That is, offered the wellness concerns caused by mold. You probably can encourage them to repair it, offered the wish to protect the value of their home.

    How do you repair a flooded basement?

    Safety measures

    Try to eliminate the water out of the basement instantly. Look for the security procedures like check for the dangerous animals and insects like lizards, snakes, as well as crawlers.


    Open the windows in your basement and also throughout your home to reduce smells as well as reduced dampness degrees. You can also rent blowers as well as followers to relocate air into your basement.

    Establish the actual cause of flooding

    If flooding is due to leaking pipelines, then you require to call the professional for resolving your water troubles. Otherwise, it may be damaging to the entire building because the basement is the foundation for the building.

    Mold and mildew avoidance

    You can make use of the dehumidifier. It aids to get rid of the additional moisture from the basement, aids in faster drying out, and stops mold and mildew growth. Throw away all the swamped things in your basement. It might boost the opportunities of mold growth as well as production. You can dry the wall surfaces and then repaint them to avoid any type of fungal development on wall surfaces of the basement.

    Install a reliable waterproofing system

    You need to install sump pumps and also water drainage systems for your basement. An efficient waterproofing system assists you in the removal of excess water from your basement.

    Contact Us For A Free Inspection

    We’re a family-owned and operated business that understands our customers’ needs. We provide affordable, long-lasting water solutions to the Seattle Washington area. If you have noticed a strange odor or mold in your home, call us at (206) 309-5147 to schedule a free crawl space inspection today.

    Get Started With a Free Phone Or Online Quote

      Crawl Space Drainage Systems

      Your crawl space must stay dry for your home’s systems to function correctly. If water gets into your crawl space, it can soon invade your home and cause mold and mildew growth. Water can also cause foul smells, poor air quality, and even structural damage.

      Fix Your Crawl Space For Good

      With our conditioned crawl space services, you can seal your crawlspace air vents from cold winter air and moisture.

      Crawl Space Encapsulation

      The Perma Dry Waterproofing Clean And Dry Liner System is a heavy-gauge, 4-ply scrim-reinforced plastic liner (like a pool liner) encapsulation product. This crawl space sealer is securely fashioned to foundation walls and sealed at all edges and overlaps to seal off the moisture from the rest of your home. Non-flammable and coated with an anti-microbial sealant, your home will be dryer, cleaner, and healthier from the ground up.

      Concrete For Crawl Spaces

      Stop “managing” your crawl space rodent and moisture problems and solve it permanently. With our unique blend of concrete for application in tight spaces, we seal all exposed dirt surfaces under your home with 3-4″ inch thick permanent rigid concrete encapsulation barrier.

      Concrete is the only material to provide a 100% guarantee of rodent control while adding structural integrity to your foundation.


      Add clean and dry storage space and eliminate foul and musty odors.


      Stop moisture and moisture-related damage.

      Save heating and cooling costs and increase the value of your home.

      Eliminate rodents for good and enjoy a cleaner, healthier living environment.

      Exterior Drainage Systems

      When you live in Seattle in The Pacific Northwest, you expect a lot of rain to fall. But when your home or business develops water damage, you need a reliable way to solve the problem.

      Protect Your Seattle Property

      Don’t risk water damage and harmful mold growth inside your home or business. Perma Dry Waterproofing is the right source for a new basement drainage system.

      French Drains

      Yard Drainage

      Commonly installed in wet and soggy yards to remove standing water.

      Placed In Ground

      Move water away from your home and prevent water-related damage.

      Foundation Footing Drains

      A waterproofing emulsion and drain mat are installed to keep water and damp soils from touching the wall.

      Foundation Walls

      Prevent the flow of water from entering into the basement.
      Trench/Strip Drains

      Driveway Drains

      Effectively re-route water coming down your driveway.

      Damage Prevention

      Trench drains prevent water in your home, coming from a sloped driveway.

      No matter what you call them; French drain, driveway drain, strip drain, trench drain, channel drains. Driveway drainage can safely and effectively re-route water coming down your driveway and prevent water in your home.

      There are specific considerations when determining which type of drainage system to use for your property. Will you be driving over the strip drain into the garage? What are the pitch of the driveway and what types of water volumes? Is there an existing working pipe to discharge the waters too? Can I flow the waters via gravity or do I need a durable sump pump? In what condition and finish is the surrounding driveway concrete?

      Perma Dry Waterproofing takes all these factors and more into account when creating a plan to help you solve your below-grade water problems. If you are having water problems and you want to learn more, contact us today. One of our experienced estimators will work with you to develop a repair plan.

      Outside footing drains are one solution that Perma Dry Waterproofing provides to solve wet basement, crawl space water, and foundation water problems. We safely remove soils away from the foundation to create a working space at the base (footing) of the foundation wall. The walls are cleaned, coated with an elastomeric waterproofing emulsion and then a drain mat is installed to keep water and damp soils from touching the wall.

      The drainpipe system is made of rigid and durable PVC perforated pipe. It includes filter fabric to keep the system clean. The whole system is then covered in ample amounts of drain rock. Lastly, we return the soils and landscaping to their original condition. System waters will then be re-routed to a safe location for disposal either on-site or tied into the municipal stormwater system.

      French drains are typically placed on the outside of a building’s foundation to protect the basement or crawl space from taking on water. They are commonly installed in wet and soggy yards to remove standing water. French drains can also be placed on the inside of the house to protect critical areas like basements and crawl spaces. The water is then routed away from the structure where it can be discharged or re-distributed effectively via gravity or a sump pump system.

      While the basics stay the same (trench, pipe, rock), French drains are built with varying widths, depths, and materials depending on the objectives and needs of the property. Most French drains will have a few standard components.

      Proper French drains are installed below the impervious or clay layer of soils to collect the water then runs horizontally on top that cannot saturate into the ground. French drains should be placed at the lowest possible point to lower the water table around that structure.

      Satisfaction Guaranteed!

      At Perma Dry Waterproofing, we take the time to assess the problem and determine the best way to solve it. As a result, what we make dry stays dry. In fact, we’re so confident in the quality of our work that we offer a written guarantee to back it up.

      We had had our basement flood twice in a couple of years. Perma Dry found a poorly sealed crack in a foundation wall and repaired it beautifully. Even with huge rainstorms, we haven't had a drop of water. Highly recommended.
      Macall Gordon

      We've had several very wet storm seasons since the installation three years ago, and the basement has remained bone dry, even while water covers large parts of our yard. We've doubled the usable space in our house.
      Scott Jarol

      These folks were EXCELLENT. I mean "first class". Perma Dry delivered on their promises. I've had perfect and wonderful dryness. Nope, they didn't pay me to write this. I'm just a genuinely satisfied customer.
      John Austin

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      (206) 309-5147
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      Our Office

      608 SW 12th Street
      Renton, WA 98057

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