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HomeAdvisor Screened & Approved

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Learn about our screening process

23 Years In Business

Company Details

  • Verified Licenses


  • Mon: 8:00 AM - 6:00 PM
  • Tue: 8:00 AM - 6:00 PM
  • Wed: 8:00 AM - 6:00 PM
  • Thu: 8:00 AM - 6:00 PM
  • Fri: 8:00 AM - 6:00 PM
  • Sat: 8:00 AM - 6:00 PM
  • Sun: Closed
View All Details & Credentials


Service Details

  • Residential Work

Areas of Expertise

  • Carpentry
  • Doors
  • Decks
  • Plumbing
View All Offerings and Cities Served

Cost Information

  • Free Estimates
  • Credit Cards Accepted


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

Highly rated for

  • Quality
  • Value
  • Customer Service
Showing 1-9 of 9 results
5.0 Catherine G. San Jose, CA

Karol was promt in responding to my calls and texts. A professional who is very knowledgeable, a good listener, and attentive to detail. I highly recommend for any home projects and I look forward to working with him on my future projects.

5.0 Sasa C. Alviso, CA

Karol did a fantastic job and went an extra mile to help me with the housing project. He went above and beyond to ensure my demand is met and the result was flawless. I would hire him again for other housing-related projects and can confidently recommend him to many of my friends and colleagues that are house owners in the area.

5.0 Bruno C. San Carlos, CA

Had him rebuild an old patio cover in my yard. All we kept were the posts and two beams. Replaced all else. Came out very nice. Couple months later had him do some porch railing and window sill repairs on a rental house my mother owns. Nice work, very fair price. Will definitely use him again.

5.0 Steve T. San Jose, CA

Five stars across the board! Showed up on time, confidently assessed the problem, and proposed a solution at a fair price. I hired him and he didnâ t disappoint. We were preparing a house for sale and needed the job done right and on time. Herman Construction Co. was the right choice and is now my go-to guy for construction jobs.

5.0 Cathy J. San Jose, CA

Karol is very nice and easy to work with. He pays attention to details and will actually go to the site to check the condition of my front porch. He would also call me to discuss the repairing options and materials which we could use to save us money. He charges a reasonable price for a good quality job. We are quite happy with our front porch's new look. I would highly recommend Herman Construction as they are reliable and trustworthy. We will definitely come back to Karol again if we need help in the future.

5.0 Sharon F. San Jose, CA

Excellent at what they do. Very professional and customer service oriented. Thank you so very much for the wonderful work they do!

5.0 Javier R. Sunnyvale, CA

Karol is a very reliable and skilled professional. He approaches any sized job with focused approach and positive attitude. I know I can count on him to get the job done.

5.0 Lucy N. San Jose, CA

Mr. Herman is a skilled person as well as a people person. His work quality is excellent, very neat and great looking. The replaced parts look like the original part of the whole unit.

5.0 Xiayi S. Sunnyvale, CA

Karol is a very nice guy to work with. He is approachable, easy to communicate with. He goes through the project from end to end on our first visit, explain how he would build the frame, cut the wood, the timeline. He also finds a stone guy and coordinates the work. When actually doing the work, he puts cardboards on our floor to avoid scratching. Upon request, he also did a prototype for us, and when we change our mind to use a different style, he redoes the bulk of the project. I would recommend Karol to anyone who needs carpenter work!


Herman Construction Company
Bathroom Remodel
Kitchen Remodel
New Addition

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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.
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