Aalcon Company

Family Owned & Operated

Free Estimates 


Aalcon Company has been serving the Northern Virginia area since 2009, with 40 years of experience in all your home or business Waterproofing or Masonry needs. We are family owned and operated.


Aalcon Company is highly rated by hundreds of happy customers that have trusted our work. We provide value and excellence in a field that is highly competitive. Our knowledge coupled with our experience has made us the industry experts on making our clients happy. 


40 +


Years In Bussiness

Projects Completed


Highly Rated Reviews


Years Approved by HomeAdvisor & Angie's List






We specialize in waterproofing basement walls. Our guarantee is that we find your problem and fix it good as new. Aalcon takes no short cuts.

When the basement begins to leak it's ti

Foundation Repair

Aalcon Company does outstanding Foundation Repairs that last. Our repairs are efficient and guaranteed for five years. Work with highly rated professionals who guarantee their work for years to come.

bricklayers trowels.jpg

Brick Point Up

Repointing Brick Walls and New Mortar is one of Aalcon's Specialties.  We make sure to repair any decay that comprises the structure or it's integrity to support the building or facade. 

Our 7 Step Process

Aalcon uses a seven step process on wall crack repairs, foundation repairs, and waterproofing to ensure a long-lasting, clean job. Most services come with a lifetime guarantee. Here is an overview of how we do just that: 

1) We remove dirt and debris down to the concrete footer.

2) The walls are scraped and cleaned to provide an adequate surface to work with.

3) Next, Aalcon locates cracks and block damage, repairing the wall with epoxy or mortar.

4) The area is then re-parged with new cement topping made by Mapei.

5) We cover the area with a plastic waterproofing membrane.

6) Aalcon then backfills dirt, removing any rocks or debris harmful to wall repairs.

7) Lastly, we tamp and grade new backfill for proper drainage.



Knowledgeable and honest. Walked me through every step in detail (taught me a lot). Didn't try to sell me things I didn't need and reasonably took care of recommended extras that have proven to be very beneficial. When new problems were discovered, he responded quickly and he followed up to ensure his repairs were settling properly over time. Even provided some quick landscaping and helped me control costs when the unexpected arose. - Peter and Ada M.

Jim was knowledgeable and thorough. His crew worked quickly and carefully. They supply a 5 year guarantee on their waterproofing. We are pleased with Aalcon's work. - James T.

They were quick to respond, knew exactly what to do, got the job done quickly and neatly. They went above and beyond, saving & replanting existing landscaping, too. When they were done, you never would have known they were there. Reasonable cost, too!! - David C.

I hired the contractor to replace an improperly installed drainage system and seal the poured concrete foundation from the outside at my primary home. I was totally favorably impressed with the complete job and hired Jim to install a similar drainage system and seal the foundation from the outside at my sons home where water was coming thru the total cinder block foundation / basement wall and external entry stairway. He said he would come back to address any issues if I experience any problems in the future. I trust Jim Alls completely and recommend his company to anyone wanting a permanent solution to their water entry problems. - Hurrol G.




For any inquiries, questions or commendations, please call: 540-671-9943 or fill out the following form.

Contact Us

Thanks for submitting!

Head Office

4327 Fiery Run Road

Linden, VA 22642



Tel: 540-671-9943

VA LIC. # 2706131165


Service Areas

Fairfax, Herndon, Reston, Manassas, Merrifield, Dulles, Warrenton, Winchester, Centreville, Leesburg, Purcellville, Chantilly, Middleburg, Springfield, Strasburg, Upperville, Vienna, Haymarket, Round Hill, Huntly, Hamilton, Nokesville, Burke, Gainesville, Bristow, Stephens City, Oakton, Amissville, Boyce, Paeonian Springs, Broad Run, Aldie, Lincoln, Philomont, Dunn Loring, McLean, Midland, Greenway, Bealeton, Bentonville, Front Royal, Markham, Fairfax Station, Lorton, Clifton, Catharpin, Culpeper

Call For a Free Estimate: