Home Additions in Palm Beach & Broward

Preventive Maintenance designs and builds patio lanais, converts existing patios into living space, and constructs full home additions across Palm Beach County and Broward County, Florida. Expanding your home increases usable square footage, improves functionality, and protects your outdoor space from heat, humidity, rain, insects, and high-velocity hurricane zone (HVHZ) winds. As a single-source general contractor, Preventive Maintenance manages every step of the project, including initial design, structural plans, permitting, HOA approvals, foundation work, framing, roofing, windows, electrical, plumbing, and air-conditioning installation.

Who Home Additions and Conversions Are For

Expanding your home is ideal for homeowners in South Florida who need additional living space but want to avoid the cost, stress, and interest rate adjustments associated with purchasing a new home. Whether your household is growing, you require a dedicated home office, or you simply want an enclosed outdoor entertainment area safe from mosquitoes and sudden rainstorms, extending your current footprint provides a tailored solution.

Home expansions are particularly well-suited for properties where:

• An underutilized covered patio or concrete slab already exists.

• The home layout permits an outward extension into the rear or side yard without violating set-back limits.

• Homeowners want to increase property equity while keeping their existing mortgage terms.

• Outdoor living space needs complete protection from South Florida’s intense sun, humidity, and tropical downpours.

What We Build: Home Expansion Options

Preventive Maintenance builds three distinct types of outdoor and indoor structural expansions. Each option offers specific material choices, roofing configurations, and climate control capabilities.

1. Patio Lanais

A patio lanai creates an open-air or screened sheltered space over an existing concrete slab or newly poured foundation. It provides overhead sun and rain protection while allowing natural airflow.

• Materials & Framing: Aluminum structural posts or conventional wood-and-concrete columns.

• Roofing: Insulated aluminum panel roofs that block thermal heat transfer.

• HVAC / Enclosure: Open-air or screened; non-conditioned space.

2. Patio to Room Conversions

Converting an existing covered patio or porch transforms an outdoor concrete slab into a fully enclosed, habitable room (such as a sunroom, family room, or home office).

• Materials & Framing: Framing directly onto the existing slab/foundation with impact-resistant windows and exterior wall cladding.

• Roofing: Conversion of existing lanai roofs or integration of a flat TPO or sloped concrete tile roof system.

• HVAC / Enclosure: Fully insulated walls and ceiling with integrated air-conditioning (ductless mini-split or extended central HVAC system).

3. Full Home Additions

A ground-up home addition creates entirely new interior living square footage attached to the existing house. This includes bedrooms, expanded kitchens, in-law suites, or extended living rooms.

• Materials & Framing: Reinforced concrete block (CMU) or heavy-gauge framing anchored directly into newly poured concrete footings and slabs.

• Roofing: Flat TPO membrane or sloped concrete tile matching the main home's architectural line.

• HVAC / Enclosure: Full electrical distribution, plumbing, interior drywall, impact glass windows/doors, and dedicated air-conditioning.

Comparing Expansion Options

Choosing the right project depends on your intended use, budget, and desired level of climate control. The comparison below outlines the key differences between the three services offered by Preventive Maintenance.

Our Step-by-Step Building Process

Preventive Maintenance handles every phase of construction directly. We do not require you to hire separate architects, engineers, or trade subcontractors.

1. Initial Site Inspection & Scope Definition

   We evaluate your existing foundation slab, structural tie-beam placement, electrical panel capacity, property line set-backs, and drainage layout.

2. Architectural & Engineering Plans

   Our team drafts custom structural blueprints engineered specifically for South Florida's high-velocity hurricane zone (HVHZ) wind load requirements.

3. HOA & Municipal Permit Submissions

   We assemble and submit all required engineering calculations, site plans, and common HOA architectural review notifications to ensure rapid approval.

4. Foundation & Structural Framing

   Depending on the project type, we pour site-cast concrete slabs or anchor columns. Structural tie-ins to the main building are executed using secure ledger attachments or framing joists directly into the existing concrete tie-beam.

5. Roofing, Windows & Enclosures

   We install insulated aluminum roofing panels, flat TPO membranes, or matching concrete tile systems along with HVHZ-rated impact windows and doors.

6. Rough-In Electrical, Plumbing & HVAC

   Internal systems are integrated into the new structure, including dedicated electrical circuits, plumbing lines for wet bars/baths, and high-efficiency air-conditioning systems.

7. Finishes & Final Inspection

   Drywall, flooring, exterior stucco, paint, and trim are completed before guiding the municipal building department through final permit sign-off.

Pricing and Cost Expectations

Project costs vary based on materials, structural engineering needs, and whether the space requires air conditioning and insulation. Below are standard baseline costs across South Florida:

• Aluminum Lanai (on existing concrete slab): About $52 per square foot.

• Conventional Wood-and-Concrete Lanai (on existing slab): About $65 per square foot.

• Air-Conditioned Home Addition: About $250 per square foot.

• Buying a New Home in South Florida (for cost comparison): About $350 per square foot.

Patio-to-Room Conversion Costs

Patio conversions do not adhere to a single standard per-square-foot figure. Pricing depends on specific structural conditions, including:

• Whether the existing roof structure and concrete slab meet current building codes or require reinforcement.

• The amount and type of impact glass windows and sliding doors selected.

• Electrical service upgrades and the choice of ductless mini-split versus central HVAC extension.

• Insulation and interior drywall finishing requirements.

Typical Dimensions

While all projects are custom-built to match your property layout, the standard average size ranges from 12' x 20' to 20' x 20'. Custom dimensions are available for both compact patio footprints and expansive multi-room additions.

Timeline, Permits, and HVHZ Requirements

Project Timeline

The average turnaround time for a lanai construction, conversion, or home addition is 3–6 months. This timeline covers structural design, HOA review board approvals, municipal permitting, foundation work, framing, utility rough-ins, and final inspections.

Permits & HOA Approvals

All home additions and structural enclosures in Palm Beach County and Broward County require formal building permits. Preventive Maintenance handles all permit applications, site plan preparations, and standard HOA architectural package submissions on your behalf.

Wind & Weather Engineering

South Florida’s coastal climate demands strict adherence to High-Velocity Hurricane Zone (HVHZ) engineering standards. Structures must withstand severe wind loads and heavy rainfall without snow or ice loads to consider. We ensure structural integrity by utilizing:

• Heavy-duty insulated aluminum roofs or concrete tile roofs.

• Secure roof-to-wall tie-ins via ledger boards or joists and trusses anchored into the concrete tie-beam.

• HVHZ-rated impact windows and doors designed to withstand flying debris and intense atmospheric pressure changes.

Licenses & Credentials

Preventive Maintenance holds 5 state contractor licenses alongside EPS (Environmental Protection Services) licenses, guaranteeing full regulatory compliance and professional oversight across structural, electrical, roofing, and mechanical disciplines.

Areas Served

Preventive Maintenance serves residential clients throughout Palm Beach County and Broward County, Florida.

In Palm Beach County, we serve homeowners in:

• Jupiter

• West Palm Beach

• Boynton Beach

• Delray Beach

• Boca Raton

In Broward County, we serve homeowners in:

• Pompano Beach

• Fort Lauderdale

• Pembroke Pines