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HomeAdvisor Screened & Approved

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Learn about our screening process

15 Years In Business

Company Details

  • Verified Licenses
  • Bilingual


  • Mon: 9:00 AM - 4:00 PM
  • Tue: 9:00 AM - 4:00 PM
  • Wed: 9:00 AM - 4:00 PM
  • Thu: 9:00 AM - 4:00 PM
  • Fri: 9:00 AM - 4:00 PM
  • Sat: Closed
  • Sun: Closed
View All Details & Credentials


Service Details

  • Residential Work
  • Commercial Work

Areas of Expertise

  • Additions
  • Patios
  • Porches
  • Decks
View All Offerings and Cities Served

Cost Information

  • Credit Cards Accepted


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

Highly rated for

  • Quality
  • Value
  • Customer Service
Showing 1-10 of 11 results
5.0 Al C. Silver Spring, MD

They were very communicative and did a great job.

5.0 Erik W. Silver Spring, MD

Highly recommend Goliath and will look to use them again for other projects. Extremely responsive and flexible. The quality of work was also great. They built a great deck, sub-porch underneath, patio, and new slider. Expectations were exceeded.

5.0 Jennifer V. Brookeville, MD

We had wanted a screened in porch for a while and began to talk with contractors in Spring 2019. We felt very comfortable after talking with Goliath that not only were they capable and in the ballpark of the other estimates, but that they were truly committed to quality work. We began working with them on the designs and specifications, and we had lots of questions because although we knew generally what we wanted, there were lots of details and decisions to be made. They struck the perfect balance of making suggestions, pricing out options, and providing guidance without dictating changes. We changed our minds several times about this or that and they were always amenable. I should note that the job was not only the addition but replacing two large windows in the back, one with a custom sliding door and the other with 3 windows. The addition included a deck, an outdoor gas fireplace and TV, so they had to run electric and gas line. They also replaced our roof and gutters. There were challenges (the shop we bought the windows from dropped them loading for delivery, the inspections were, at times, nightmarish), but Goliath stayed calm, made adjustments, and pushed through. I should also say there were many crews working and all were extremely professional and respectful. We would definitely use Goliath again and would highly recommend them to others.

4.0 Arpana V. Gaithersburg, MD

They did a great job once we figured things out with our project. Their guys are neat and do a superb job. Especially managing our flooring as we have heated subfloor and there was no damage. My only complaint is they dont respond to texts and calls easily. It takes time to get in touch.

5.0 Fran M. Elkridge, MD

These are the nicest, most professional folks I've ever had the pleasure of working with. From start to finish every step along the way went smoothly and accurately. They were present on a daily basis with no breaks in service as experienced with other companies who jiggle job sites. Courtney and Juver along with their talented staff were amazingly helpful with suggestions for design and materials. They built a perfectly utile laundry room with all fixtures, cabinets and waterproof flooring in just six weeks. They also added a new louvre door closet in the adjoining hallway and extended flooring throughout the area. I think the most important comment I have is that they are honest and trustworthy. I felt very comfortable allowing all of them access to anywhere in my home, including the week I was away on vacation. And they served as surrogate parents to my blind Doberman who simply adored them. I am now completely spoiled and won't hire anyone else for jobs I need done.

5.0 Larry W. Silver Spring, MD

All these guys really worked extremely hard in some questionable weather. Great job, extremely well built and very sturdy. They had tons of tree roots to deal with. I can’t say enough good things about them.....

5.0 Kathy B. Derwood, MD

Very easy to work with and to schedule

5.0 Jordan S. Rockville, MD

Great service, and excellent communication skills!

4.0 Ed T. Gaithersburg, MD

Warm and easy to work with Courtney.

5.0 Dawn P. Silver Spring, MD

Courtney and company are very prompt, knowledgeable, and professional. They also cleaned up and removed the scrap wood. I'm very pleased with my new deck!


Goliath Construction
Modern deck and patio
Trex deck in Havana Gold
Deck and porch
Trex- Spiced Rum
Fiberon composite deck
Trex lava rock deck
Timbertech composite deck
Timbertech composite deck
Timber tech deck

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.

HomeAdvisor verifies state-level licensing where applicable - note: some states require local or county level licensing and you should verify whether or not your pro is properly licensed.
To find more licensing information for your state, visit our Licensing Requirements page.

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

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