Slide background Your Satisfaction

Our #1 Priority

Slide background


Slide background



Slide background


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 61 reviews
5 out of 5 stars
- November 18, 2015

i could not be happier with A-1 Guaranteed Foundation Repair. When Kevin Proctor came out to look at the foundation of the house I am remodeling [a foundation that supposedly had been repaired within the past year by a different company], he offered terrific advice: I followed it and am quite content. Mariana Hanson has been a pleasure to contact on the phone as she has always been gracious and willing to get things done as quickly as possible. Great company!

5 out of 5 stars
- November 7, 2015

Very professional, the whole crew came in got to work and got the job done. They explained the process as they went along so we would know what they were doing.

5 out of 5 stars
- October 13, 2015

We had a great experience with A1 Garanteed Foundation Repair; from the initial meeting to asses our foundation problem, to the crew performing the work, to the office staff who was friendly and accomondating, to the Post follow-ups; A1 quickly engaged the Plumbing Co. & Engineering Co to completed their tests & evaluation of the work preformed. I would highly recommend A1 to my friends & family. Also, their price beat out other estimates we got.

5 out of 5 stars
- October 5, 2015

very helpful; easy to work with on setting appointments; actual crew was efficient, friendly and did a remarkable job; clean-up was above and beyond; total professional operation.

5 out of 5 stars
- October 2, 2015

Mariana was very responsive and listened to my needs. The foundation crew was on time and ended up completing the same day. Per the engineer, they did a great job.

Sort Reviews by: Date or Rating
A1 Guaranteed Foundation Repair
1047 East Business Highway 121, Suite D-9
Lewisville, TX 75057
Phone: (214) 392-2633
Powered by GetFiveStars

Leave Us a Review

We've found that customer reviews are very helpful in keeping our business thriving. We would truly appreciate a review from you!

Visit your preferred site to leave a review or comment: