HomeAdvisor screened and approved seal

HomeAdvisor Screened & Approved

This service professional has passed the HomeAdvisor screening process.

Learn about our screening process
Learn about our screening process

54 Years In Business

Company Details


35159 Danny Drive
Zephyrhills, FL 33541


  • Mon: 7:00 AM - 7:00 PM
  • Tue: 7:00 AM - 7:00 PM
  • Wed: 7:00 AM - 7:00 PM
  • Thu: 7:00 AM - 7:00 PM
  • Fri: 7:00 AM - 7:00 PM
  • Sat: 7:00 AM - 7:00 PM
  • Sun: 7:00 AM - 7:00 PM
View All Details & Credentials


Service Details

  • Residential Work
  • Commercial Work

Areas of Expertise

  • Lightning Protection
View All Offerings and Cities Served

Cost Information

  • Free Estimates
  • Trip Charge May Apply
  • Credit Cards Accepted


125 Verified Reviews
  • 5
  • 4
  • 3
  • 2
  • 1

Highly rated for

  • Quality
  • Value
  • Customer Service
Showing 1-10 of 125 results
5.0 Bob D. Poinciana, FL

The Lightning Defense company responded quickly to re-install our pre-existing Lightning Protection System (LPS) after our roof replacement was completed. Lightning Defense personnel worked quickly, efficiently, safely, and were very professional, courteous and clearly explained everything. They told me that our LPS was up proper standards and met all the county, state and any federal related requirements. They re-certified our LPS. I'm very satisfied with the results.

5.0 Cecelia P. Lehigh Acres, FL

John is very kind its like working with your father. He explained everything very well, showed me all the materials he was using. When we spoke on the phone he did the same. When he came out he showed me his license, insurance, that he is bonded and he had a book of photos of his work. He cleaned up very well after the job was done left no screws or anything behind. This was the best service Ive had with any company at any time.

5.0 David G. The Villages, FL

They did a great job a a very good price. They arrived on time and finished quickly. Wires were all neatly run and hidden along ridges and downspouts. Very satisfied.

5.0 Thomas U. Tampa, FL

A seamless experience. John showed up promptly with an estimate and sent me a copy of his liability policy as promised right after the estimate. I hired them and they promised to be at our house between 11:30 and 12. They showed up at 11:45, exactly the midpoint of the estimated arrival window. John estimated the job would take three hours but they completed the work in a bit less. He ran the cables along the gutters so they are not visible unless you look behind the gutters. I hope never to test the system (do not want my home struck by lightening at al, thank you!). but the materials are all UL listed.

5.0 Pat K. The Villages, FL

Outstanding job. They got right on the job and had it done in a couple of days. I would HIGHLY recommend Mr. Sherlock.

5.0 Marilyn B. Ocala, FL

Very good experience, showed up on time for estimate, started project immediately, came back on time the next day and finished the job. We were satisfied with the explanation of the work and the products used. I highly recommend this company for this job.

5.0 Diane C. Winter Garden, FL

They did a terrific job

5.0 Alice M. Tampa, FL

Lightning Defense, LLC Came as scheduled and explained the job. Reasonable priced.

5.0 Linda T. Saint Augustine, FL

John Sherlock and his partner (wife) did a extremely quality job with the installation of lighting rods. I would certainly recommend them to all looking for a very professional experience. We are very happy.

5.0 Dominic R. Carterville, IL

John Sherlock and his wife are the consummate professionals! I would highly recommend them. Their attention to detail and installation quality, was superb. Johns knowledge of Lighting protection is apparent after 40+ years. You will not be disappointed . July 2020. D.Riggio Carterville, Illinois

HomeAdvisor allows Service Professionals to post information about themselves and their business on their profile. HomeAdvisor does not review or verify the information representations set forth in those profiles as they are self-reported by the Service Professional.

To find more licensing information for your state, visit our Licensing Requirements page. Note that some states require local or county level licensing and you should verify whether or not your pro is properly licensed.

Seal of Approval

What is the screening process that Service Professionals go through in order to become members of the HomeAdvisor network?

  1. Verify Trade License
    HomeAdvisor checks to see if the business carries the appropriate state-level license.
  2. Verify Insurance
    As a part of our screening process, we encourage professionals to carry general liability insurance. We require coverage for hundreds of services.
  3. Verification of State Business Filings
    For business types that require a Secretary of State filing, we confirm that the business is in good standing in the state in which it is located.
  4. Criminal Records Search
    HomeAdvisor uses 3rd party data sources to conduct a criminal search for any relevant criminal activity associated with the owner/principal of the business.
  5. Sex Offender Search
    We confirm that the owner/principal is not listed on the official state Sex Offender web site in the state in which the owner/principal of the company is located.
  6. Bankruptcy Search
    We use 3rd party data sources to check the history of the principal/owner of the business for bankruptcy filings by or against them.
  7. Legal Search for Civil Judgments
    We use 3rd party data sources to check the principal/owner of the business for state level civil legal judgments entered against them.
  8. Liens Search
    We use 3rd party data sources to check the principal/owner of the business for liens placed against them.
  9. Identity Verification (SSN)
    HomeAdvisor verifies the social security number(s) of the owner/principal for identity check purposes. This check applies primarily to smaller business entities.
  10. Identity Verification (Reverse Phone Lookup)
    We conduct a reverse business phone lookup to identify records matching the phone number information provided by the business.

NOTE: Member service professional information confirmed as described above may change or expire over time; while HomeAdvisor attempts to maintain accurate and up-to-date information, and confirms changes when notified, we cannot guarantee that profile and screening information is accurate. Therefore, we recommend that before working with a service professional you verify that information presented is still current and/or acceptable to you.
Please see HomeAdvisor's Terms and Conditions for a full description of how we screen Service Professionals

**Only for U.S. service professionals

Final Step - Confirm Your Appointment:

Confirm your appointment with on , - Change


By clicking Confirm Appointment, you affirm you have read and agree to the HomeAdvisor Terms & Conditions, and you agree and authorize HomeAdvisor and its affiliates, and their networks of Service Professionals, to deliver marketing calls or texts using automated technology to the number you provided above regarding your project and other home services offers. Consent is not a condition of purchase.