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 18 reviews
5 stars
- September 9, 2014

I was very apprehensive about the whole thing but everything was great. Luis and his crew were very careful and I was kept informed about everything that was going on. I can't say enough good things about this crew. The yard around the house looked like a tornado had struck but when the guys left, it was absolutely remarkable. It was almost as if nothing had gone on. I am so pleased with the work and the company should be commended for Luis and his fine crew that fixed my foundation.

5 stars
- September 8, 2014

They were courteous and very professional. They also did what it took to raise one side of my house that was cracking.

5 stars
- August 29, 2014

Everyone was great. Couldn't speak more highly of the professionals and staff. Everyone from the office to the work site were committed to customer service. A+. Jeff and Mariana in particular were a real joy to work with.

5 stars
- August 28, 2014

A-1 Guaranteed Foundation Repair did a great job for my repair need. They were courteous, on time, explained the work every step of the way and even took 'before and after' photos for me, all within the agreed price. They gave me great peace of mind that I hired to right people to do the job. I highly recommend A-1 Guaranteed Foundation Repair to anyone needing this service.

5 stars
- August 25, 2014

First rate. All of my concerns were addressed. The work was timely done and everything was cleaned up afterwards. They even spread the excess dirt on the bare spots in the yard. Well worth the money.

Sort Reviews by: Date or Rating
Page: 1 2 3 4
A1 Guaranteed Foundation Repair
1047 East Business Highway 121, Suite D-9
Lewisville, TX 75057
Phone: (214) 392-2633

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: