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Our Services

  • Lifts settled slabs and slab foundations
  • Lifts and levels sunken sidewalks driveways and patios
  • Levels concrete steps and landings
  • Fills sinkholes and other voids
  • Lifts, levels and stabilizes roadways and airport runways
  • Strengthen and stabilizes loose soil for preconstruction applications

Concrete Leveling Contractors in District of Columbia

NV Waterproofing
12200 Livingston Rd
Manassas, VA 20109
SERVICE AREA:
Greater Washington DC: including Washington DC, Alexandria, and Arlington.

PolyLevel Contractors in District of Columbia

Conditions where outdoor concrete has already begun to sink is not uncommon in District of Columbia and is often the result of shifting, a weak soil base or erosion. It causes driveways, sidewalks, walkways, concrete steps or patio areas to become tripping hazards and can affect property value.

District of Columbia soil has a variety of soil types, ranging in density and load-bearing capacities. When the weight above the soil exceeds the soil below, the soil will compact and settle. Clay and silt can also cause soil to compact when it becomes dry. Regardless of the reason, once soil becomes compact, heavy concrete above the soil will sink and crack. It's a gravity thing!

While it is a very noticeable problem, with the right contractor, it can have a very simple solution.

Previously, sinking concrete was repaired by a technique called "mud jacking" that uses a thick slurry to fill in the gap underneath the sunken concrete. While effective, it is not the most efficient way to solve the problem, and adds more weight above the compacting soil.

Today, select contractors in District of Columbia are professionally trained to provide a better alternative to mud jacking. PolyLevel is a less intrusive, lighter weight solution that doesn't add more weight to the problem.

Customer Reviews

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    By PATRICIA B.
    Haymarket, VA
    Alex and David did a fantastic job, they were on time,...
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    Customer Review

    full starfull starfull starfull starfull star
    By PATRICIA B.
    Haymarket, VA
    Alex and David did a fantastic job, they were on time, polite and hard workers. Took extra time to hear our concerns. Took extra care of what they were doing on our property. Highly recommend.
  • full starfull starfull starfull starfull star
    By Will W.
    Aldie, VA
    Your team was amazing, from the initial walkthrough and...
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    Customer Review

    full starfull starfull starfull starfull star
    By Will W.
    Aldie, VA
    Your team was amazing, from the initial walkthrough and scheduling to installation and cleanup! Thank you and keep up the terrific customer service!
  • full starfull starfull starfull starfull star
    By Todd M.
    Aldie, VA
    They did an outstanding job performing maintenance on the...
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    Customer Review

    full starfull starfull starfull starfull star
    By Todd M.
    Aldie, VA
    They did an outstanding job performing maintenance on the waterproofing system. Our technician was knowledgeable, very polite, and courteous to clean up after the maintenance was complete. Thank you !
  • full starfull starfull starfull starfull star
    By Alee G.
    Aldie, VA
    Mauricio explained 3 options that would fix the water...
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    Customer Review

    full starfull starfull starfull starfull star
    By Alee G.
    Aldie, VA
    Mauricio explained 3 options that would fix the water problem we were having in our basement. He gave me details about the materials and process NV watering proofing would be using in my home. He never tried to sale me something I didn’t really need. Rich arrived on time. He walked me through what he was doing. He put everything back so well, you can’t tell any work was done on that wall. I would definitely recommend this company and their crews!
  • full starfull starfull starfull starfull star
    By Edward K.
    Gainesville,, VA
    Maggie, the customer service rep, was very pleasant,...
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    Customer Review

    full starfull starfull starfull starfull star
    By Edward K.
    Gainesville,, VA
    Maggie, the customer service rep, was very pleasant, efficient and well informed.
  • full starfull starfull starfull starfull star
    By Walt
    Gainessville, VA
    Jaime was thorough and found the crack that two previous...
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    Customer Review

    full starfull starfull starfull starfull star
    By Walt
    Gainessville, VA
    Jaime was thorough and found the crack that two previous companies did not.
  • full starfull starfull starfull starfull star
    By Paul B.
    Ashburn, VA
    What a fantastic and knowledgeable company. I'm a real...
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    Customer Review

    full starfull starfull starfull starfull star
    By Paul B.
    Ashburn, VA
    What a fantastic and knowledgeable company. I'm a real estate agent and highly recommend NV to all my clients. They are simply the best in the business. The customer service and expertise is unmatched! The service is very timely and reasonably priced.
  • full starfull starfull starfull starfull star
    By Frank S.
    Chantilly, VA
    Can't say enough on how professional this crew was both...
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    Customer Review

    full starfull starfull starfull starfull star
    By Frank S.
    Chantilly, VA
    Can't say enough on how professional this crew was both Jose and Eduardo Chavez. I was worried because I recently had my basement remodeled but they very neatly covered everything up. They tested the installed system. They explained how the system functions before they left.
  • full starfull starfull starfull starfull star
    By Peter M.
    Clarksburg, MD
    Manny's crew was amazing to work with
    View Review

    Customer Review

    full starfull starfull starfull starfull star
    By Peter M.
    Clarksburg, MD
    Manny's crew was amazing to work with

Testimonials

  • This was after a competitor used scare tactics to try to sell an $18,000 solution. Highly recommend getting a... Read Full Testimonial
    Bryan C.
    Marshall, VA

    Customer Testimonial

    Bryan C.
    Marshall, VA
    Had Bruce out to do an estimate. He gave us an honest assessment of the situation that no work was necessary. This was after a competitor used scare tactics to try to sell an 18,000$ solution. Highly recommend getting a second opinion (or first!) from NV before deciding on who will do your work. Very courteous and friendly as well.
  • As a general contractor I would highly recommend them and will continue to use their services for future... Read Full Testimonial
    Donald T.
    Purcellville, VA

    Customer Testimonial

    Donald T.
    Purcellville, VA
    NV Waterproofing and their crew (Casey, Crew, Kevin, and Grant) were very professional from start to finish, they informed me in the beginning exactly what they were going to do and performed every step with great attention to detail and were very courteous and clean. As a general contractor I would highly recommend them and will continue to use their services for future work.
  • In short, it was a satisfying experience to have a contractor that put so much attention into customer... Read Full Testimonial
    Daniel P.
    Warrenton, VA

    Customer Testimonial

    Daniel P.
    Warrenton, VA
    A minor delay on the start day proved not to be a problem as the NV Waterproofing crew worked until 8:00 to ensure that the project stayed on schedule. Dust and debris from jack-hammering was far less than anticipated. In short, it was a satisfying experience to have a contractor that put so much attention into customer satisfaction. I cannot find fault worth mentioning without sounding picky from the start to final clean-up of the work site.
  • Your crew worked hard all day, only taking a short time for a quick lunch. The men were neat, completely... Read Full Testimonial
    Mat and Peggy M.
    Ashburn, VA

    Customer Testimonial

    Mat and Peggy M.
    Ashburn, VA
    Your crew worked hard all day, only taking a short time for a quick lunch. The men were neat, completely covering all areas that they used to remove concrete, dirt and debris. They were on task the entire time. We were very impressed. We have had a lot of work completed in our home over the last 38 years, and I am pleased to say that your employees are the most conscientious we have ever worked with.
  • Outstanding support from Brendan. Read Full Testimonial
    Hugh S.
    Leesburg, VA

    Customer Testimonial

    Hugh S.
    Leesburg, VA
    He knows his business and is a great rep for you company. A 10 out of 10 experience!
  • The workmen showed up right on time. They were courteous and pleasant – and they told us EXACTLY what... Read Full Testimonial
    Fred L.
    Sterling, VA

    Customer Testimonial

    Fred L.
    Sterling, VA
    The workmen showed up right on time. They were courteous and pleasant – and they told us EXACTLY what they were going to do. Once they dug down to the sewer pipe, Jim was proven correct as the pipe was broken completely in half. Originally, Jim thought the job would take 2-3 days. It was finished in one day – way beyond my expectations. This experience is one of the most satisfying I’ve ever had while having work done on my house. I can’t thank you enough for the courtesy, speed and quality your company provided. The team was fast and accurate. I am forever a customer, and if anyone asks, I will recommend your company as being the best in the business. The experience has been phenomenal, from the first day that Jim showed up to give the estimate right through having all the work done. Kudos to everyone in your company for doing a great job.
  • The reason for this high review is because of the high quality character of Jim. NV came to my home to... Read Full Testimonial
    J M.
    Sterling, VA

    Customer Testimonial

    J M.
    Sterling, VA
    The reason for this high review is because of the high quality character of Jim. NV came to my home to investigate water infiltrating my basement from a front foundation wall. Jim assessed the problem as best he could, but because I had left the dry wall up he was unable to immediately access the area inside the drywall. Being at work at the time, I asked my wife to cut back some of the drywall to take a better look. Jim stayed and not only helped my wife cut away the drywall and remove sopping wet insulation, but helped her find that the problem had originated with a leaking pipe in the wall that we did not know was there. Although the company policy against removing the drywall themselves seemed odd to me, nevertheless it was their policy. Jim went above and beyond to help my wife remove the drywall and insulation, which with two small kids was going to be very difficult for her to do by herself. He helped clean up and was polite and respectful. While I am grateful I do not have a foundation leak, should I ever have one, I will call NV Waterproofing and ask for Jim. Quality people are hard to find, thanks man.
  • They were quick to come our house and resolve the issue that actually fixed the problem! Read Full Testimonial
    Jacqueline S.
    Manassas, VA

    Customer Testimonial

    Jacqueline S.
    Manassas, VA
    We experienced a house fire and then our basement had a foundation leak. They were quickto come our and resolve the issue that actually fixed the problem! THANK YOU!
  • Keep up the good work!! Read Full Testimonial
    neha S.
    Chantilly, VA

    Customer Testimonial

    neha S.
    Chantilly, VA
    Oswaldo did a great job in walking us through the steps . He was very experienced and clear about the job. The crew started on time , completed much earlier than I had thought ( less than 1 day) and left the space very clean. Oswaldo was good to talk to and answered all out questions. Great work. Thank you Oswaldo. Brian Bui Brian was very good . He was so focused in really trying to understand our problem and providing us a solution . He did not seem to be busy trying to sell products but instead paid all attention to solving our issue . Very customer focused . He always responded to our questions and calls . He even came to check how the job was going on the day of work. Very much appreciated. Thank you Brian. Keep up the good work!!
  • Expert Concrete Step Lifting in Leesburg, VA
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    Expert Concrete Step Lifting in Leesburg, VA
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Recent job requests for PolyLevel in DC

  • Project Location Washington, DC 20011
    Comment Leveling driveway
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