Residential Construction

Home Additions

Room additions, primary suites, and garage conversions that look like they were always part of the house. We are licensed as both a general contractor and a roofing contractor, so the tie-in to your existing roof is built and warrantied by the same team.

Seamless roof tie-ins

HOA and permit handled

Matched stucco and finishes

CGC1530039

Certified General Contractor

CCC1334142

Certified Roofing Contractor

Broward CBE

Certified Business Enterprise

Tri-County

Broward · Palm Beach · Miami-Dade

Types of Additions

What We Add

Room Additions

Bedrooms, offices, and flex rooms.

Primary Suites

Bedroom additions with a full bathroom and closet.

Family Room Expansions

Bigger living space for a growing family.

Garage Conversions

Where zoning and flood elevation allow.

Second-Story Additions

Where an engineer confirms the existing structure can support them.

Matched Finishes

Interior and exterior finishes that blend with the house.

Our Work

See all projects →

The Tie-In

Where Additions Fail, and How We Prevent It

Most addition problems show up where new meets old. Done wrong, those joints leak and crack for years.

We plan the tie-in before pricing, build it in the right sequence, and match roofing, stucco, and finishes so the addition blends in.

The three critical joints

  • Roof to roof. New roofing flashed and woven into the existing roof by our roofing crew.
  • Slab to slab. New foundation doweled to the existing slab per the engineer.
  • Wall to wall. Stucco transitions detailed to prevent cracking.

Our Process

How an Addition Runs

  • FeasibilityZoning, setbacks, and flood elevation checked first.
  • DesignDrawings with licensed design professionals.
  • HOA and permitSubmittals and approvals.
  • Build and tie-inFoundation, structure, roof, and systems.
  • Finish and finalFinishes matched and inspections closed.

Answers

Frequently Asked Questions

Do I need a permit for an addition?

Yes. Every addition requires a building permit, drawings, and inspections. Unpermitted additions cause problems with insurance, appraisals, and resale.

Do you handle HOA approval?

We provide the drawings, product information, and documents your HOA requires and help prepare the submittal.

Can my garage be converted to living space?

Often, but it depends on your city’s parking and zoning rules and your flood elevation. We check those before you spend money on drawings.

Will the addition match my house?

That is the goal. We match roofing, stucco texture, windows, and interior finishes as closely as available materials allow.

Keep Exploring

Explore Related Services

Lanais and Room Enclosures

Convert existing outdoor space.

Learn more →

Home Renovations

Update the rest of the house.

Learn more →

All Residential Services

Kitchens, baths, and outdoor living.

Learn more →

Free Consultation

Plan Your Addition

FirstLine Construction Corp. is a Florida Certified General Contractor (CGC1530039) and Broward County CBE-certified firm serving Broward, Palm Beach, and Miami-Dade counties. Tell us about your project and we will schedule a site visit.