Curious what it may cost to add a sunroom to your New Jersey home? Use this simple calculator to get a general price range for screened, 3-season, or 4-season sunrooms. Final pricing depends on your home’s structure, foundation needs, glass/insulation type, electrical/HVAC tie-ins, and local permit requirements in Ocean, Monmouth, or Middlesex County.
Optional Upgrades
Frequently Asked Questions About Sunroom Costs & Permits in New Jersey
How much does a sunroom cost per square foot in New Jersey in 2026?
Current average costs in Ocean, Monmouth, Middlesex, Somerset, and Union Counties are:
• Screened / Screened Room: $100 per sq ft
• 3-Season Room (no conditioning): $200 per sq ft
• 4-Season Room (insulated glass + AC-ready): $260 per sq ft
These ranges include materials, labor, and installation using durable TEMO systems. Actual price depends on foundation needs, roof tie-in, and site conditions.
What’s the difference between a 3-season and 4-season sunroom in NJ?
A 3-season room is typically used in warmer months and does not include full insulation or conditioning ($200/sq ft). A 4-season room uses insulated glass, is built for year-round use with heating and cooling, and requires higher-grade materials to handle New Jersey winters ($260/sq ft). Most homeowners in Ocean and Monmouth County choose 4-season for maximum usability.
Do I need a building permit for a sunroom in New Jersey?
Yes. Almost every township in Ocean County, Monmouth County, Middlesex County, and surrounding areas requires a building permit, engineering, and inspections for sunrooms. Legion Build handles the entire permitting process for you — from application to final inspection — so you don’t have to deal with township offices.
How long does it take to get a sunroom permit in Ocean or Monmouth County?
Permit timelines vary by township. Simple projects usually take 2–6 weeks. More complex 4-season sunrooms with structural or electrical work can take 6–10 weeks. We know the local building departments and can often speed up the process.
Can I finance my sunroom project?
Yes. Legion Build offers flexible financing options, including 0% interest promotions for qualified buyers. Visit our Specials page or Financing page for current offers.
What is included in the price shown on the calculator?
The calculator shows a realistic range for the complete sunroom package: custom framing, TEMO roofing and walls, glass/insulation, labor, and basic installation. Optional upgrades (electrical, HVAC, foundation, roof tie-in) are added separately. It does not include major foundation work or unforeseen site conditions.
How do I get an accurate quote for my home in New Jersey?
Use the calculator above for a quick estimate, then request a free on-site consultation. Our team will measure your space, review your goals, check local zoning, and provide a detailed written quote — usually within a few days.
Or call (732) 674-3454 — We serve Ocean, Monmouth, Middlesex, Somerset & Union Counties
We specialize in sunroom additions as part of larger home additions in New Jersey. Use our sunroom cost calculator to estimate screened, 3-season, or 4-season rooms, then browse sunroom design ideas. Our team manages the full sunroom installation process, including all permits.
