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We’re Solving Problems & Providing Solutions.
We’re not selling piers

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Our #1 Priority

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FOUNDATION REPAIR DALLAS: The A1 Guaranteed Foundation Repair Process


Once we have completed a thorough assessment of your home and determine foundation repair is necessary, we’ll provide you with a detailed report and discussion on what is needed and help you understand what the process will entail. We then schedule a date to complete the work.


Upon agreement, an appointment is made with an Independent Engineering firm to certify the repair plan.


With our approved plan, We install the piers in the approved locations to maximum depths. We work around bushes and plants as best we can, and if we have to remove them we do our best to preserve and replant them.


Our skilled foundation repair teams will very carefully and thoroughly employ techniques to level your home’s foundation based on your plan.


Once leveling is complete, we completely clean up the work area, we take any extra dirt and fill in any low areas on the property and then perform minor mortar repair to the exterior of the home.


Appointments are made for a final report from the engineering firm and a plumbing test is performed.

Request a Foundation Repair Assessment/Estimate by filling out the Get Your Free Estimate form on the right.

*A1 Guaranteed Foundation Repair is not a licensed engineering firm, nor does it offer engineering services. We use independent engineers to ensure that all of our work meets the highest standards. Beware of companies that offer in-house or staff engineering services. These are not unbiased engineers and they are not working for you! All work plans drawn by Licensed Independent Engineers. All completed foundation repair projects approved by Licensed Independent Engineers.

FOUNDATION REPAIR: What Causes Foundations and Slabs to Sink?

With more than 20 years of foundation repair experience, we have found that the majority of foundation problems are rooted in one of the three areas mentioned above.


Moisture changes in North Texas cause drastic clay composition changes. Acting like a sponge, soli expands during seasons of heavy rainfall and contracting during times of seasonal drought. Continuous fluctuation causes stress on your home’s foundation. Commonly, the center areas of the slab remain undisrupted, while the perimeters settle due to exposure to the seasonal moisture changes.


Trees and large shrubs with the extensive root systems require immense amounts of moisture to sustain their health. Moist soils located near the edge of the home, as well as underneath the slab, provide a viable source of water. And when the root system drains the additional moisture from these areas, it causes the slab to settle.


More common these days, plumbing has become a major issue for foundations. The cast iron plumbing commonly used in the 1960s and early 1970s is beginning to deteriorate and erode. The soli directly underneath the home can infuse with water, creating long-term foundation damage.

FOUNDATION REPAIR: What Are My Repair Options?


5 out of 5 based on 10 reviews
5 stars
- July 16, 2014

prior to calling A1 I had 2 other foundation companies ( bids) I felt quite a bit of pressure from one of them so I called A1 Kevin came out, very thro spent a hour with me, I felt very educated when he left told me I did not need anything done except a soaker hose- I was greatly impressed with his Honesty as well as his kindness, I have told 2 of my neighbors and already 2 have used them. Very Pleased Thank you A1 and Kevin Leslie from Carrollton

5 stars
- June 23, 2014

Very satisfied with the work. Everyone was professional and friendly. The work was done as scheduled, in a timely manner. The crew working did an excellent job and left the site neat and clean. Truly exceeded all of my expectations. Couldn't be more please so far. Now waiting to see if we experience any problems. Not expecting any and feel the company will honor the "guaranteed" part of their name. Totally satisfied!

5 stars
- June 9, 2014

They did a great job working through the issues with out root barrier. We would highly recommend them to our family and friends.

5 stars
- June 3, 2014

I was very pleased with the service and professional work from the A1 staff. I am also very pleased with the repair of the foundation and the efficency of the work done. I highly recommend A1 and their superb team.

5 stars
- June 2, 2014

I could not be happier. Everything went as discussed. The work crew arrived on time, worked a good portion of the day and cleaned up after work. I no longer see the stair stepping in the mortar joints. Good group of guys!

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A1 Guaranteed Foundation Repair
1047 East Business Highway 121, Suite D-9
Lewisville, TX 75057
Phone: (214) 392-2633