Destructive Testing Services
TARGETED TESTING. VERIFIED DAMAGE. RELIABLE RESULTS.
Structural Damage Investigation
Hidden Damage Detection
Insurance Claim Support
Expert Analysis & Reporting
Mold Inspection and remediation
JLS provides professional destructive testing services to accurately identify hidden damage and determine the true origin of issues within a structure. Because many problems—such as moisture intrusion, microbial growth, and structural deterioration—are not visible during a standard inspection, controlled testing is often required to fully assess the extent of damage. This is especially critical in cases involving mold contamination and concealed moisture issues, where the source of the problem must be clearly identified to prevent recurrence. This process allows findings to be clearly defined and properly routed toward the appropriate repair and remediation plan.
Key capabilities include:
- Controlled, targeted opening of walls, ceilings, and structural components to expose concealed damage
- Identification of moisture sources, microbial growth, and underlying structural issues not visible to the naked eye
- Collaboration with forensic consultants and use of proper engineering controls to ensure safe and accurate testing
- Detailed documentation to support insurance claims and validate the full scope of work required
- In-house construction expertise to transition seamlessly from investigation to repair and restoration
End-to-end service includes investigation, material removal, defect repair, and full restoration of affected areas.
Built on precision, accountability, and a solution-focused approach, JLS ensures destructive testing is performed carefully, efficiently, and with minimal disruption. When accurate answers are critical, JLS delivers clear findings and a defined path forward.
- 24/7 Emergency Response Services
- Trusted Since 2002
- CA & NV Regional Expertise, Local Service
- Destructive testing in order to determine hidden causes of damage
- Forensic consulting
- Expert witness work with causation
- Cost of Repair (COR) services
WHY CHOOSE JLS?
JLS is a full-service repair and contracting firm built to manage complex projects with clarity and control. By keeping critical construction trades in-house, JLS maintains hands-on oversight, consistent workmanship, and tighter timelines from start to finish. Every project is guided by experienced leadership and structured project management to ensure work is completed safely, efficiently, and to the highest standards. Clients rely on JLS for dependable execution, clear communication, and results that stand the test of time.
REAL CUSTOMERS. REAL STORIES.
Posted on Google William PrenticeTrustindex verifies that the original source of the review is Google. I had some interior repairs that needed to be done. It consisted of window sills, brickwork and vertical columns that needed repair from water damages caused by a leaking window system. The window system was going to be replaced by another vendor, but I still needed the repairs done. JLS did a great job on the repairs to the sills, resealed the brickwork under the window sills and also sealed the vertical column as well. They also painted all the repair areas, now everything looks like new. Since JLS deals with emergency situations and repairs they seem like they had a handle on the situation. The part I liked the most was the first thing they did was to create a containment area so it would be the least intrusive on the individual currently living there. The job was done in a timely manner and the people doing the work were proficient at whatever job they were doing. It was an easy choice to pick JLS since all the repairs could be done by them. I would recommend JLS to others.Posted on Google jonathan livingstonTrustindex verifies that the original source of the review is Google. Land clearing! The operator was highly skilled, fast, accurate, on time - a perfect job!!!!!!!A++,Posted on Google Greg JobeTrustindex verifies that the original source of the review is Google. JLS has done a great job, is flexible, and has great communication.Posted on Google Benjamin BartholomewTrustindex verifies that the original source of the review is Google. Had to get some significant damage repaired, essentially needed bathroom replace, and JLS did a fantastic job and was very communicative through the entire process,Posted on Google MichaelTrustindex verifies that the original source of the review is Google. I started with JLS at my first house that had mold in 2000, and met the owners who I have remained friends with now for 26 years. I tell them all the time that if I had employees like they do, I wouldn't have retired. This time I had a flood in my mountain home and the owner had a crew from 1-1/2 hours away on their way in minutes and they stayed into the night starting clean-up and tear out. Robert , Efrain, and Edgar started off and kept me informed and explained everything as they collected the data and samples need for insurance carriers and their labs....super professional. Gus and Robert as my project managers immediately engaged with me and our insurance carrier in a way that blew the insurance carrier away as they hadn't dealt with this level on professionalism and preparation before. Tear-out took about a week and at the end of every day you could eat off my floors, most of which they protected 100%. The crews with Phil, Christian, Edgar, Efrain and the managers were well mannered and very respective to me and my family...some of these guys I have known dating back to 2000....pretty awesome to keep great employees in this day-and-age. That says volumes about a Company and its owners. That respect for workers becomes the culture for how the workers treat customers that are already having a bad day when they call. Oh...I almost forgot Joy who called me periodically on crew arrival and developing issues....she's a rock star for sure!! To the owners John and Shane...THANK YOU AS ALWAYS FOR BEING THERE AND WALKING US THROUGH THE PROCESS.Posted on Google Frederick SwigerTrustindex verifies that the original source of the review is Google. Corin with JLS was awesome and assisted me the best she could. If I had a question she answered it quickly.Posted on Google Quang DoanTrustindex verifies that the original source of the review is Google. The water mitigation crew from JLS which lead by Robert is a high experience team that provides excellent solution. The team is extremely helpful, proactive and responsive. In our particular case, Robert is keeping us up to date with the repair progress. He worked out his best to have both water heaters replaced as quick as he could. This is a tremendous help to us as our family now have hot water in this cold season while waiting for the repair to complete.Posted on Google Paul FreemanTrustindex verifies that the original source of the review is Google. JLS Environmental Services was assigned by my insurance company to "save the day" after an upstairs bathroom leak resulted in floor damage upstairs and ceiling damage below. JLS was SUPER efficient during the initial demo, clean-up, mold testing, etc. Very professional staff, very quick work. They were equally responsive when it came time to "rebuild" the downstairs ceiling. They paint matched, texture matched and moved/protected all furnishings. The workers were very knowledgeable and personable. Overall, working with them was a great experience.
Our house suffered fire damage and JLS did all the interior and exterior renovations. JLS was amazing to work with and did an excellent job restoring our home. Would highly recommend JLS!
- Andrew M.
JLS was contracted through my insurance company after a pipe broke causing a massive amount of damage. JLS did a great job working with me on all the repairs and replacements. All the workers were friendly and helpful. Great experience with them.
- Jason E.
Had a roof leak during the big storm and felt overwhelmed. JLS came out and correctly accessed the problem and professionally fixed it. I’m very impressive with their work ethic and their professional demeanor.
- Dee L.
Great team with a lot of different kinds of professionals. I had rats chew through pipes in my attic on 2 different sides of my house that both caused a ton of water damage and began spreading mold.
- Trenton Campos
JLS did excellent repair work in our master bedroom and bath due to a leak in our fire sprinkler. Everyone involved with the project was professional, courteous and respectful. I would highly recommend them.
- Jeanine Denison
REAL CUSTOMERS. REAL STORIES.
Our house suffered fire damage and JLS did all the interior and exterior renovations. JLS was amazing to work with and did an excellent job restoring our home. Would highly recommend JLS!
- Andrew M.
JLS was contracted through my insurance company after a pipe broke causing a massive amount of damage. JLS did a great job working with me on all the repairs and replacements. All the workers were friendly and helpful. Great experience with them.
- Jason E.
Had a roof leak during the big storm and felt overwhelmed. JLS came out and correctly accessed the problem and professionally fixed it. I’m very impressive with their work ethic and their professional demeanor.
- Dee L.
Great team with a lot of different kinds of professionals. I had rats chew through pipes in my attic on 2 different sides of my house that both caused a ton of water damage and began spreading mold.
- Trenton Campos
JLS did excellent repair work in our master bedroom and bath due to a leak in our fire sprinkler. Everyone involved with the project was professional, courteous and respectful. I would highly recommend them.
- Jeanine Denison
THE JLS DESTRUCTIVE TESTING PROCESS
JLS follows a structured, controlled approach to destructive testing to ensure accurate findings while minimizing disruption. Each step is carefully planned and executed to identify hidden damage, document conditions, and establish a clear path forward for repair and restoration. This process provides clients, consultants, and insurance partners with the clarity needed to move projects forward with confidence.
Initial Assessment
Project details are reviewed to identify areas of concern and determine where testing is required.
Controlled Opening
Targeted sections are carefully opened to expose structural components and underlying conditions.
Documentation & Analysis
Findings are documented to support accurate scoping, reporting, and insurance review.
Repair Planning & Next Steps
A clear, actionable plan is established for repair, reconstruction, or additional evaluation if needed.
DESTRUCTIVE TESTING FAQs
Have questions about destructive testing, what to expect during the process, or how findings impact repairs and insurance claims? This section covers common questions related to identifying hidden damage, controlled testing methods, and next steps after evaluation.
What is destructive testing and when is it necessary?
Destructive testing is a controlled process used to open areas of a structure—such as walls or ceilings—to identify hidden damage that cannot be seen during a visual inspection. It is typically necessary when there are signs of moisture intrusion, mold, or structural concerns that require confirmation of the source and full extent of damage.
Will destructive testing cause additional damage to my property?
Destructive testing involves targeted, controlled openings only where needed. JLS takes a precise approach to minimize disruption while ensuring accurate findings. Any areas opened during testing are documented and incorporated into the repair and restoration plan.
How does destructive testing support insurance claims?
Destructive testing provides clear documentation of hidden damage, helping to validate the full scope of work required. This ensures that insurance claims are based on accurate findings, reducing the risk of overlooked issues or incomplete repairs.
Serving all of California & Nevada Since 2002