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Home addition in Florida — a Pro Work crew framing a wind-rated room addition tied into an existing house

St. Augustine · St. Johns County · Florida

Home Additions in Old City

Room additions, second stories, and Florida rooms built to carry the same hurricane loads as new construction — an engineered continuous load path, impact-rated openings, and a foundation tied into your existing slab. We engineer the structure, handle the FBC permit, and stand for the inspections so the new square footage is legal, insurable, and storm-ready.

Home Additions for homes in the Old City area of St. Augustine, Florida — spec'd for Florida slab construction, humidity and the building code, with a free in-home estimate.

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See Home Additions Done Right in Florida

Home Additions in the Old City Area of St. Augustine

Old City sits in the core of St. Augustine. As a coastal St. Augustine neighborhood, Old City sees salt air and high humidity that drive material choice and moisture control for home-additions. Pro Work Flooring also serves the nearby St. Augustine neighborhoods of Model Land Historic District, Davis Shores, Anastasia Island Town Homes.

The right home-additions for Old City depends on local building code and climate. Key factors for St. Johns County:

Service area: Old City, Florida. View larger map

About Home Additions

Choosing the right material is half the job for home-additions in Old City. How the options compare:

We've refined home-additions in Old City into a process you can follow at every step:

See the full Home Additions guide — materials, process and detail →

Home Additions Near Old City

Pro Work Flooring serves home-additions in Old City and nearby communities, including:

Home Additions FAQs for Old City

Do you serve Old City, Florida?

Yes — Pro Work Flooring covers Old City and the wider St. Johns County area for home-additions. Request a free estimate and we'll schedule a visit.

How does the coast affect home-additions in Old City?

Salt air and humidity near the coast push us toward moisture-tolerant materials, careful acclimation, and subfloor moisture testing before any home-additions in Old City.

What's the first step for home-additions in Old City?

We've refined home-additions in Old City into a process you can follow at every step:

Add the Room Without the Weak Seam.

Free consultation. Feasibility and code review. Wind-load engineered. Tied into your existing structure. Permits handled. No pressure.