Charleston, SC

Home Additions That Feel Like They Were Always There

Need more space? JTB Construction builds additions that match your home's style, meet local code, and are built to last in the South Carolina climate.

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Types of Additions We Build

Adding on to an existing home is more complex than new construction — it requires matching existing materials, tying into existing systems, and maintaining structural integrity. JTB has the experience to do it cleanly.

  • Room additions (bedroom, living room, office)
  • Master suite additions
  • Garage conversions and enclosures
  • Sunrooms and enclosed porches
  • Second-story additions
  • In-law suites
  • Mudrooms and laundry room additions

Project photos coming soon

Built for the Charleston Climate

Additions in the Lowcountry need to handle humidity, heat, and occasional severe weather. We use materials and techniques that hold up to South Carolina's climate — and we build to local code for permitting and resale peace of mind.

Let's Talk About Your Addition

Get a free consultation and quote. Tyler and Blake serve Charleston, Summerville, Mount Pleasant, and the surrounding Lowcountry.

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