Wet Basement?

Water leakages in your basement can damage your furnishings, cause structural issues, create hazardous health problems, and limit your home’s usable space. The wet and cold weather of Seattle doesn’t make this any better.

At Complete Trenchless, we specialize in basement waterproofing using high-quality systems and products. Our well-equipped waterproofing experts will create a customized plan to make your basement dry and livable. As your trusted local basement waterproofing company in Seattle, we inspect and determine the best basement waterproofing options for your home.

Don’t let water ruin your basement. Whether you want to add a home office, an extra bedroom, a man cave, or a workout room, a finished dry basement gives you a variety of potential options that you otherwise wouldn’t have.


Pro Guide Roofing

Our Specialization

With years of mastering waterproofing techniques, our waterproofing experts are confident in our ability to protect your home or business from any present or future water damage. We stay up to date on all the new engineering sciences and techniques for home building, so we can better serve our clients and prevent any potential water damage to your home or business.

When we are done, you won’t have to worry about any more dog gone water causing you problems.


Basement Waterproofing Services

Basement leak prevention options! We offer two main types of basement waterproofing which is interior or exterior, this page will explain what the benefits and disadvantages are of both options. A waterproofed basement is a great way to keep your home a healthy place to be. 

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Exterior Waterproofing Services

Exterior waterproofing is an effective way of protecting your foundation from leaking. When possible we always try to waterproof your basement from the outside as we know that stopping water at the source is always the best way to protect your home from deteriorating .

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Interior Waterproofing Services

Fix Basement leak from inside, Yes we do this also and sometimes there is no other option than to make the repair from the inside of the property. Interior water management is what we like to call it, as we know its not essentially waterproofing it is more a water re-direction. 

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Backwater Valve & Sump Pump services

Installing these devices is an excellent way of keeping water out of your basement. Backwater valves are a great addition to your basement protection system, But be careful as not all devices are equal.

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Underpinning Services & Basement Lowering

Our fully insured, licensed Underpinning Company can underpin your home the right way, Safely and professionally. Pro Guide has highly trained crews and the correct insurance to underpin your home the right way! 

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Drain Repair & Plumbing Services

Drain Repair & Cleaning Services & Plumbing, Yes that is right we are Master plumbers here at Proguide. Both of our owners are fully trained plumbers and they both have master plumbing degrees so they know there stuff. We are not joking when we say we are fully licensed. 

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Sewer Backup & Snaking Services

Maintaining your drains is an important part of keeping your sewer system running smoothly. We all forget about our drain system in our homes and we only get reminded when its too late, yes that's right when your basement gets flooded with sewage then you sure do remember. 

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Concrete Floor Install & Foundation Repair Services

Concrete floor installation & repair services, Yes you heard right we are professional concrete installers and know which concrete to use for your specific needs, Pro Guide has done hundreds of concrete floor replacements with hundreds of happy customers. 



Our mission is to safeguard structures from the damaging effects of water intrusion through our trusted and reliable waterproofing solutions. We are committed to providing superior protection, peace of mind, and long-lasting durability to our clients, ensuring that their properties remain safe, dry, and structurally sound.

Our primary goal is to prevent water from compromising the integrity of buildings and structures. We understand the destructive impact that water can have on foundations, basements, roofs, and other vulnerable areas. Therefore, we strive to offer cutting-edge waterproofing technologies and techniques that effectively mitigate the risks associated with water damage. Central to our mission is a focus on quality and expertise. 


Our vision is to lead the way in creating a future where water intrusion becomes a thing of the past. We envision a world where structures are fortified against the relentless forces of water, enabling homeowners, businesses, and communities to thrive without the fear of costly water damage.

Central to our vision is a commitment to innovation and advancement in the field of waterproofing. We strive to continually push the boundaries of what is possible, leveraging cutting-edge technologies and techniques to develop industry-leading solutions that set new standards for effectiveness and durability. We envision ourselves as pioneers, constantly seeking breakthroughs in waterproofing systems to provide our clients with the most reliable and efficient solutions available. 


Waterproofing refers to the process of making a structure or surface resistant to the penetration of water. It involves the application of specialized materials and techniques to create a barrier that prevents water from entering and causing damage.

Waterproofing is essential to protect structures from water damage, which can lead to costly repairs, structural deterioration, and the growth of mold and mildew. Proper waterproofing helps to maintain the integrity of buildings, prolong their lifespan, and ensure a safe and healthy environment.

Various areas of a building can benefit from waterproofing, including basements, foundations, roofs, balconies, bathrooms, showers, and exterior walls. Each area has its unique vulnerabilities to water intrusion, and waterproofing solutions can be tailored to address specific concerns.

Some signs that your property may require waterproofing include water stains, dampness, musty odors, mold or mildew growth, peeling paint or wallpaper, and cracks in walls or floors. If you notice any of these signs, it is advisable to consult with a waterproofing professional to assess the extent of the issue.

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