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Reviews From Alexandria
Products & Services
Basement Repair Services & Products
WaterGuard Interior System
DryTrak Drainage Channel
TrenchDrain Drain Grate
IceGuard Discharge Line
FlexiSpan Wall Crack Repair
Polyurethane Crack Sealing
WellDuct Window Drainage
Drain Tile Installation
SuperSump Pump System
TripleSafe Pumping System
UltraSump Battery Back Up
Sanidry Dehumidifier
Crawl Space Repair Services & Products
CleanSpace Encapsulation Vapor Barriers And Liners
Turtl Access Hatch
EverLast Crawl Space Doors
SaniDry Dehumidifier
SmartDrain Water Drainage
SilverGlo Wall Insulation
TerraBlock Floor Insulation
SmartSump Sump Pump
Crawl-o-Sphere Crawl Space Fan
WallCap Block Wall Sealer
SmartVent Flood Vents
Foundation Repair Services & Products
Push Pier Underpinning For Settlement, Foundation Leveling, Sinking Foundation Repair
Geo-lock Wall Anchors
Geo-lock Helical Anchors
PowerBrace Bowed Wall Repair
CarbonArmor Fiber Wall Repair
SmartJack Crawl Space Support
Slab Pier Repair
PolyLevel® Concrete Lifting
EZ Post Deck Repair
Shotcrete Wall Restoration
Before and After Pictures from Alexandria
SunHouse Basement Window Installation in Alexandria, VA

SunHouse Basement Window Installation in Alexandria, VA

Before After
SunHouse Basement Window Installation in Alexandria, VA SunHouse Basement Window Installation in Alexandria, VA

This is a window well that we upgraded to an egress with our SunHouse Basement Window Enclosure in Alexandria, VA. The finished product looks much nicer and cleaner and will allow a lot more light to enter the basement. 

Company Awards
Angie's List Super Service Award 2016
Smart Home Services received the Super Service Award for being the top A-rated company in our category.... [Read more]
Angie's List Super Service Award 2015
Smart Home Services received the Super Service Award for being the top A-rated company in our category.... [Read more]
Angie's List Super Service Award 2014
Smart Home Services received the Super Service Award for being the top A-rated company in our category.... [Read more]
More Awards

Alexandria, VA's Trusted Basement Waterproofing & Crawl Space Contractor

Happy Customers Surrounding Alexandria, VA
Work Requests

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Do you have a basement that's damp, leaks or floods? Do have a foundation or crawl space that's in need of repair? NV Waterproofing & Foundation Repair can help. We've been a locally-trusted company since 1986 and we've helped lots of homeowners in Alexandria, VA.

With an award-winning team and proven products, you'll have the assurance that your job's completed the right way. Plus, our crews are very familiar with the Alexandria area, so you can always count on us to be there on time. Contact us today and let us know how we can help you!

  • Transferable Lifetime Warranty on Basement Waterproofing Solutions
  • 25-Year Warranty on Foundation and Crawl Space Solutions
  • Same-Day Financing Options

Basement Waterproofing & Leak Repair in Alexandria

If you have leaky cracks in your basement walls or floor, or you have a basement that floods, we have a solution. Our trained technicians provide you with a comprehensive analysis of what's causing your basement water problem, and the proper solution to solve it once and for all. If poor surface water drainage, a clogged French drain, or a broken sump pump are to blame, we can install a new waterproofing system to protect your home and keep your basement dry.

We only install products that we know work, this includes:

  • Multi-pump, cast-iron, submersible sump pump systems with built-in high water level alarm
  • Battery backup pumps for continuous operation and protection in power outages
  • Clog-resistant interior drainage channel - Collects water from walls and drains it away before it reaches the floor
  • ENERGY STAR-rated SaniDry dehumidifier - No water buckets to empty and has a built-in air filter to trap mold spores and dust

If you need basement waterproofing, contact us today! We'll design a custom waterproofing system for your home and provide you with a free estimate on the cost of the products and installation.

Foundation & Structural Repair in Alexandria

Wall Anchor System Installed

Wall anchors hold back bowing walls to keep your home stable.

If you have cracks in your foundation, basement walls that are bowing or any other sign that something's not right, let one of our foundation specialists take a look - you'll be glad you did. The sooner you take care of your foundation problem, the less money it will cost you in future repairs. 

We offer a full range of foundation repair solutions in Alexandria, including patented helical piers, push piers, wall anchors and crawl space jacks, we can handle any foundation problem. Normal settlement can cause foundation cracks, but they could also mean a serious structural problem.

Common signs of foundation problems are:

  • Sagging floors and floor cracks
  • Wall cracks
  • Bowing walls
  • Sticking doors and windows
  • Tilting chimneys

We never recommend a solution that you don't need. Our goal is to educate you on all the options and let you choose the best solution for your needs and budget.

Crawl Space Encapsulation & Repair in Alexandria

The problems below your home could be affecting your comfort and air quality upstairs. Do you smell musty odors or have cold floors in the winter? Then you could benefit from our CleanSpace crawl space encapsulation. If you have moisture, mold, mildew, rot, or pest problems in your crawl space, we can help. Our heavy-duty crawl space liner is warrantied for 25 years against rips and tears and will help stop moisture and mold issues!

We offer a variety of crawl space solutions, including:

  • Vapor barriers
  • Dehumidifiers
  • Sump pumps
  • Access doors and access wells
  • Crawl space support jacks


Book basement waterproofing, foundation repair, crawl space repair estimates today

If you're looking for an estimate on basement waterproofing, crawl space repair or foundation crack or settlement repair in Alexandria, contact us today! We offer no-obligation evaluations and free estimates. We look forwarding to helping you.

Job Stories From Alexandria, VA
Basement Peace of Mind in Alexandria, VA

This Alexandria, VA homeowner had plans to finish his basement. Unfortunately, those plans were delayed due to continued water intrusion in the basement. We proposed the installation of our WaterGuard sub-floor drainage system, a 1/3 hp TripleSafe sump pump, a new exterior drainage line complete with IceGuard to prevent clogging, and CleanSpace vapor barrier to permanently fix his water issues. This prevents further damage and allows for peace of mind to finally finish the basement to make it an enjoyable space. 

Work Requests From Alexandria, VA
Project Location: Alexandria, VA
Several stair step cracks ranging from fine to 1 penny-width have appeared in plaster walls of home. Trying to figure out if these are normal or a structural issue
Project Location: Alexandria, VA
Water marks appeared on baseboard at bottom of edge of drywall and floor.
Project Location: Alexandria, VA
I'd like to have someone come to provide an estimate for an interior drainage system in my townhouse below grade basement.
Project Location: Alexandria, VA
I have a basement apartment with a broken pipe. I want to install a Sump Pump outside the door with a grate
Project Location: Alexandria, VA
I have two crawlspaces that I had fully encapsulated back in 2013. Since then, I've had a rodent infestation in the crawlspace that created quite a stink and require repair or replacement of the vapor barriers and removal of all fiberglass batting.
Project Location: Alexandria, VA
We have some cracks appearing in our foundation and along the ceiling/wall joints. Looking for an analysis for any possible repairs. Thanks!
Project Location: Alexandria, VA
I live on a street in Alexandria that has flooded the past three summers (due to insufficient city stormwater infrastructure). Surface water comes in from the street, back alley, and side walls with neighboring row houses that flood worse than me. I am already having a backflow preventer put in and upgrading my sump pump but looking for additional waterproofing options.
Project Location: Alexandria, VA
We get water in our unfinished basement. Not sure where it is coming from. We clean it up with a wet vac but want to identify where it is coming from and a quote to fix it.
Project Location: Alexandria, VA
I live in a row house in Del Ray and keep getting water in the basement (coming up thru the floor). I currently have no sump pump.
Project Location: Alexandria, VA
Exterior water issues causing wet back yard and see flooding of basement stairwell. Looking for exterior solution advice, not sump pump.
Project Location: Alexandria, VA
Basement water proofing and sump pump installation. Had a flooding event in 2020.
Project Location: Alexandria, VA
We are interested in getting a quote on doing an encapsulation of a crawl space.
Project Location: Alexandria, VA
835 sq foot home, built 1950 with crawlspace that appears to not have been touched since. Interested in possible encapsulation/moisture management
Project Location: Alexandria, VA
Seking floor joist repair due to extensive termite damage that happened before I bought the house. I had a structural engineer come out and he determined the supports in crawl space weren't properly fixed. Over the last year, the floor has started to drop significantly causing the stairs to tilt and walls to lean and crack. I had a preliminary assessment from a structural engineer about my floors sagging/walls tilting and a few different solutions have been proposed. Happy to share the SE's assessment in advance if helpful. Specifically interested in SmartJack stabilizers for the crawl space. Thank you.
Project Location: Alexandria, VA
Looking at buying a home in Manassas. It needs crawl space attention and foundation cracks fixed. Just looking to get a rough estimate so I know what reno costs may cost before buying. Thank you.
Project Location: Alexandria, VA
I'm looking to buy a house. There is a vertical crack with water staining in the foundation wall. I want to get an estimate/get it looked at to see what it would take to fix it prior to going through with the sale; I would get it fixed after the sale.
Project Location: Alexandria, VA
We noticed several obvious signs of settling on the top floor of our townhouse that might indicate a foundation issue - a sticky door, sloping floor, 45 degree crack over a door. We are in a 3-level townhouse on a slab.
Project Location: Alexandria, VA
A small but significant crack in the exterior of the foundation that may or may not be caused by a nearby large tree.
Project Location: Alexandria, VA
Water on top of footer inside basement.
Project Location: Alexandria, VA
We have new and expanding cracks around numerous door frames throughout our 80-year old house. Some internal doors won't close due to shifting and one external door frame has expanded while the external brick has growing gaps. We have a basement with a large crawl space and one addition with a slab. Thank you!
Serving the following Alexandria, VA zip codes
22301, 22302, 22303, 22304, 22305, 22306, 22307, 22308, 22309, 22310, 22311, 22312, 22313, 22314, 22315, 22320, 22331, 22332, 22333, 22334, 22350