What is the average cost of a sunroom in Duval County, FL?

A 3-season sunroom averages $20,240 for 200 square feet, while a 4-season sunroom averages $34,960. Screen porch enclosures cost significantly less at $8,280 on average. These figures reflect local labor rates of $25.59 per hour, which run about 13% below national averages.

Do sunrooms in Jacksonville need hurricane-rated materials?

Yes. Duval County scores 97.66 out of 100 on FEMA's hurricane risk index, requiring impact-resistant glass or approved shutters for most sunroom permits. Budget 10-20% above base costs for wind-rated materials meeting Florida building codes.

How much will a sunroom add to my electric bill?

With electricity at $0.158 per kWh and 2,758 annual cooling degree-days, a climate-controlled sunroom can add $50-150 monthly during summer if poorly insulated. Properly designed rooms with Low-E glass and thermal breaks should increase cooling costs by only 15-20%.

What is the difference between a 3-season and 4-season sunroom?

Three-season sunrooms ($13,800-$32,200) lack climate control and become uncomfortable during Jacksonville's hot summers. Four-season rooms ($23,000-$50,600) include insulation and HVAC connections for year-round use, making them more practical given the area's 2,758 cooling degree-days.

How many carpenters work in the Jacksonville area?

The Jacksonville metro employs approximately 2,500 carpenters according to 2025 occupational data. This provides reasonable contractor availability, though scheduling during peak construction season (spring and early summer) may require 4-6 weeks lead time.

Can I finance a sunroom addition in Duval County?

Yes. With median home values at $274,900 and current 30-year mortgage rates at 6.36%, many homeowners qualify for home equity loans or HELOCs. A $35,000 project financed over 10 years at 8% would run approximately $425 per month.

What climate zone is Duval County in?

Duval County is in IECC Climate Zone 2A (hot-humid), classified as cooling-dominated. The area has only 1,472 heating degree-days (60% below national median) but 2,758 cooling degree-days, meaning sunroom design should prioritize heat rejection over insulation for cold weather.

REGIONAL COST GUIDE · Duval County, FL

How Much Does a Sunroom or Enclosure Cost in Duval County, FL?

Sunrooms in Duval County cost $13,800-$50,600. See local labor rates, hurricane considerations, and financing options for Jacksonville-area projects.

Cost range $13,800 – $32,200

Average $20,240

Updated May 18, 2026

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COST BREAKDOWN

What homeowners in Duval County actually pay.

Local market ranges built from regional labor, materials, and permitting data — not national averages.

3-Season Sunroom (200 sq ft)

$13,800 Avg: $20,240 $32,200

4-Season Sunroom (200 sq ft)

$23,000 Avg: $34,960 $50,600

Screen Porch Enclosure (200 sq ft)

$4,600 Avg: $8,280 $13,800

National avg $22,000 × 0.92x local adjustment = $20,240

Why Duval County prices look like this.

Late spring through early fall offers the best timing for sunroom installations in Northeast Florida, allowing contractors to work efficiently before hurricane season peaks in August and September. A typical 200 square foot sunroom project in Duval County runs between $13,800 and $50,600, depending on whether you choose a 3-season room, fully climate-controlled 4-season space, or simple screen enclosure. With median home values at $274,900 in the Jacksonville area, a well-designed sunroom addition can boost both livable square footage and resale appeal. Screen porch enclosures start around $4,600 for basic aluminum framing, while high-end 4-season rooms with insulated glass and HVAC integration can reach the upper ranges. Local labor costs run slightly below national averages, which helps offset Florida's stringent wind-load requirements for coastal construction.

Labor Costs and Contractor Availability

Carpenters in the Jacksonville metro area earn an average of $25.59 per hour, about 13% below the national average of $29.58. This wage differential contributes to the 0.92x local cost adjustment applied to sunroom projects. The metro employs approximately 2,500 carpenters, providing reasonable contractor availability for enclosure work. Labor accounts for roughly 40-50% of total sunroom costs, with the remainder going to materials like aluminum framing, glass panels, and roofing components. For a standard 200 square foot 3-season sunroom, expect labor costs between $5,500 and $12,900. Four-season rooms require additional trades (electricians for climate control, possibly HVAC technicians), which increases labor's share of the budget. Get at least three quotes, and verify that contractors carry proper licensing for Duval County's building code requirements.

Hurricane and Storm Considerations

Duval County faces substantial weather risks that directly affect sunroom design and cost. The county scores 97.66 out of 100 on FEMA's hurricane risk index and 98.54 for lightning, both in the "Very High" category. Inland flood risk sits at 97.55, while tornado and hail risks score 91.54 and 96.22 respectively. These ratings mean sunroom construction must meet Florida's strict wind-load specifications, often requiring impact-resistant glass or approved shutter systems. Standard single-pane enclosures won't satisfy building codes in most cases. Budget an additional 10-20% for hurricane-rated materials compared to inland regions. Aluminum frames with reinforced corners and laminated glass panels rated for 150+ mph winds are common requirements. Contractors familiar with Duval County permitting will specify appropriate materials upfront, avoiding costly redesigns during inspection.

Climate Zone and Seasonal Performance

Duval County falls within IECC Climate Zone 2A (hot-humid), classified as cooling-dominated. The area logs only 1,472 heating degree-days annually, about 60% below the national median of 3,700 HDD. Cooling demand tells the opposite story: 2,758 cooling degree-days puts significant AC load on any enclosed space from May through October. For 3-season sunrooms, plan on limited use during summer afternoons unless you add ceiling fans and shade solutions. Four-season rooms require proper insulation and connection to your home's HVAC system to remain comfortable year-round. Low-E glass with solar heat gain coefficients under 0.25 can reduce cooling loads by 25-40%. The DOE classifies this region as Southeast for HVAC purposes, where reflective roofing materials and exterior shading devices deliver measurable energy savings compared to standard construction.

Energy Costs and Efficiency

Florida residential electricity runs $0.158 per kWh as of February 2026, slightly above the national average. In Duval County's cooling-dominated climate, a poorly designed sunroom can add $50-150 monthly to summer electric bills if connected to your home's AC system. Prioritize thermal breaks in aluminum framing and double-pane Low-E glass to minimize heat transfer. With 2,758 annual cooling degree-days, every degree of unwanted solar gain translates to real costs. Consider hybrid approaches: operable windows for spring and fall ventilation, with a mini-split system for peak summer months. The Jacksonville area receives 5.48 peak sun hours daily, making exterior shade structures or motorized screens worthwhile investments. Properly insulated 4-season rooms should add no more than 15-20% to your existing cooling costs when designed with energy efficiency in mind.

Financing Your Sunroom Project

Current 30-year mortgage rates sit at 6.36% as of May 2026, making home equity options competitive for larger sunroom projects. With Duval County's median home value at $274,900, many homeowners have sufficient equity for a HELOC or cash-out refinance to fund a $20,000-$50,000 addition. Home improvement loans offer another path, with typical terms of 5-15 years at rates slightly above mortgage rates. For a $35,000 four-season sunroom financed over 10 years at 8%, expect monthly payments around $425. Some contractors offer in-house financing or partnerships with lending institutions, though rates may be higher than bank alternatives. The cost multiplier for Duval County runs about 1.6x the national average for home-related services, reflecting the regional real estate market. Factor financing costs into your total budget when comparing sunroom styles and features.

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FREQUENTLY ASKED · 07

Questions buyers ask about sunrooms and enclosures in Duval County.

Short answers to the most common things we hear about local pricing, scope, and timing.

What is the average cost of a sunroom in Duval County, FL?

A 3-season sunroom averages $20,240 for 200 square feet, while a 4-season sunroom averages $34,960. Screen porch enclosures cost significantly less at $8,280 on average. These figures reflect local labor rates of $25.59 per hour, which run about 13% below national averages.
Do sunrooms in Jacksonville need hurricane-rated materials?

Yes. Duval County scores 97.66 out of 100 on FEMA's hurricane risk index, requiring impact-resistant glass or approved shutters for most sunroom permits. Budget 10-20% above base costs for wind-rated materials meeting Florida building codes.
How much will a sunroom add to my electric bill?

With electricity at $0.158 per kWh and 2,758 annual cooling degree-days, a climate-controlled sunroom can add $50-150 monthly during summer if poorly insulated. Properly designed rooms with Low-E glass and thermal breaks should increase cooling costs by only 15-20%.
What is the difference between a 3-season and 4-season sunroom?

Three-season sunrooms ($13,800-$32,200) lack climate control and become uncomfortable during Jacksonville's hot summers. Four-season rooms ($23,000-$50,600) include insulation and HVAC connections for year-round use, making them more practical given the area's 2,758 cooling degree-days.
How many carpenters work in the Jacksonville area?

The Jacksonville metro employs approximately 2,500 carpenters according to 2025 occupational data. This provides reasonable contractor availability, though scheduling during peak construction season (spring and early summer) may require 4-6 weeks lead time.
Can I finance a sunroom addition in Duval County?

Yes. With median home values at $274,900 and current 30-year mortgage rates at 6.36%, many homeowners qualify for home equity loans or HELOCs. A $35,000 project financed over 10 years at 8% would run approximately $425 per month.
What climate zone is Duval County in?

Duval County is in IECC Climate Zone 2A (hot-humid), classified as cooling-dominated. The area has only 1,472 heating degree-days (60% below national median) but 2,758 cooling degree-days, meaning sunroom design should prioritize heat rejection over insulation for cold weather.

SOURCES · 08

How these numbers were built.

Cost estimates are derived from government data including the U.S. Census Bureau (ACS), Bureau of Labor Statistics (OEWS), FEMA National Risk Index, EIA energy data, IECC climate zone classifications, Federal Reserve (FRED), and HUD Fair Market Rents.