Lanai cost per square foot typically ranges from $15 to $50 for screening an existing covered patio, while building a new roofed lanai can cost $50 to $150 or more per square foot. Size, roof and slab work, screen type, permits, and local labor rates drive the final quote.
| Item | Low | Average | High | Notes |
|---|---|---|---|---|
| Screen enclosure on existing structure | $15/sq ft | $28/sq ft | $50/sq ft | Frame and screen; existing roof and slab stay |
| New covered lanai | $50/sq ft | $95/sq ft | $150/sq ft | Roof, framing, and enclosure; site work varies |
| 300-square-foot screened lanai | $4,500 | $8,400 | $15,000 | Uses screening-only per-square-foot range |
What a 300-Square-Foot Lanai Usually Costs
For a 300-square-foot patio with an existing roof and concrete slab, screening commonly costs $4,500-$15,000, or about $15-$50 per square foot. A typical midrange project is around $8,400, using an average rate near $28 per square foot. That usually covers aluminum framing, standard fiberglass screen, and installation, but not major structural repairs.
A new roofed and screened lanai of the same size may total $15,000-$45,000, with an approximate average of $28,500. This broader range reflects differences in foundation, roof design, drainage, and finishes. Existing usable roof and slab are the largest savings compared with new construction.
Assumptions: 300 square feet, standard materials, ordinary access, and typical U.S. contractor pricing; high-cost coastal and metro markets may exceed these ranges.
How Screen, Roof, and Concrete Charges Add Up
For an existing covered patio, screen and frame work make up most of the bill. A new lanai adds construction trades and materials, so its component costs should be compared with the overall project quote rather than simply added to a screening-only estimate.
| Quote component | Screen-only range | New covered lanai range | Typical pricing basis |
|---|---|---|---|
| Aluminum frame and screen | $10-$32/sq ft | $15-$40/sq ft | Screen type, frame size, and openings |
| Roof and structural framing | $0-$5/sq ft | $20-$60/sq ft | Roof style, spans, and attachment |
| Slab or foundation | $0-$5/sq ft | $8-$25/sq ft | New concrete and site preparation |
| Installation labor | $5-$15/sq ft | $15-$35/sq ft | Access, crew time, and project complexity |
| Permits and disposal | $0-$1,000 | $300-$3,000 | Local review and removal of old materials |
These lines are budgeting ranges, not a fixed bill of materials; contractor quotes may group labor and materials. Ask whether the estimate includes permit fees, old-screen removal, and cleanup.
Which Size, Roof, and Screen Specs Raise the Quote
Size affects total price, but larger jobs may have a lower per-square-foot rate when they use straightforward rectangular layouts. A 200-square-foot enclosure might cost $3,000-$10,000 for screening, while a 500-square-foot version could land around $7,500-$25,000. Corners, doors, and custom dimensions can reduce those economies.
Material and engineering choices also shift the estimate. Standard fiberglass mesh is usually less expensive than pet-resistant or no-see-um screen, which can add roughly $1-$4 per square foot of screen area. A roofed structure with spans over 20 feet, a nonstandard attachment, or a roof tie-in that needs reinforcement may require engineering and stronger framing.
Get the screen mesh, frame dimensions, roof scope, and wind-load requirements specified in writing. Those details help distinguish a low quote that excludes structural work from a complete, code-compliant price.
Why Florida Labor and Coastal Codes Change Prices
Lanai pricing is especially sensitive to location because many projects are concentrated in Florida, where wind exposure, permit rules, and coastal conditions affect design. In high-demand coastal areas, quotes may run 10%-25% above inland or rural pricing. Major metro markets elsewhere can also exceed lower-cost regional estimates by 10%-20%.
Local requirements vary by municipality and site. A permit may cost a few hundred dollars for a simple enclosure, while a new roofed structure or engineering review can push permit-related charges above $1,000. Wind-rated components, inspections, or required structural upgrades may add more; homeowners should confirm the local authority’s rules before comparing bids.
Use local quotes for the final budget, especially near the coast or in a high-wind zone. National per-square-foot averages may not include local code or engineering work.
How Long Screen Crews Need for Installation
A straightforward 200- to 400-square-foot screening project may take a small crew one to three working days after materials are available. Replacing screen on an existing frame can be faster, while building a new roof, pouring concrete, or correcting framing can extend the schedule to several weeks when permit review and trade coordination are included.
Labor can be estimated as hours multiplied by the crew’s hourly rate. Local rates often fall around $50-$100 per worker-hour, though many contractors quote the whole job instead of billing by the hour. Ask for labor scope and exclusions rather than treating a low hourly rate as the project total.
When Screen Repair Beats Rebuilding the Lanai
If the frame is sound and only a few panels are damaged, replacing individual screen panels may cost about $50-$150 each, depending on size and access. Rescreening a full enclosure often falls around $1,500-$4,500, with larger or elevated structures costing more. These repairs can be substantially less than replacing a complete frame and screen system.
Replacement becomes more practical when aluminum is bent or corroded, fasteners are failing, or repeated repairs are accumulating. Upgrading every panel to premium mesh is rarely necessary if the main concern is a few torn sections. Have the frame inspected before accepting a full-replacement quote.
Which Lanai Upgrades Are Worth Their Added Price
Pet-resistant mesh, no-see-um mesh, privacy panels, extra doors, and decorative finishes can increase the estimate. Premium screen may add $1-$4 per square foot of screen area, while additional doors or custom openings can cost roughly $200-$600 each installed. Roof gutters, lighting, and electrical work are usually separate items and should be priced individually.
Upgrades make more sense when they solve a specific need, such as small insects or frequent pet damage. Compare the base quote with each upgrade shown as a separate line item. This prevents optional features from obscuring the cost of the basic enclosure.
How to Keep a Lanai Quote Within Budget
Retaining a serviceable slab, roof, and frame is usually the most effective way to control cost. Keep the footprint rectangular, limit custom openings, and choose standard screen when premium mesh is not needed. Complete landscaping or access preparation before the crew arrives if the contractor confirms that it is safe and appropriate.
Compare at least three written estimates with matching dimensions, mesh grade, roof scope, permit responsibility, and cleanup terms. Schedule nonurgent work when local contractors are less booked, but do not skip permits or wind-rated specifications to lower the bid. Compare equivalent scopes and exclusions, not just the bottom-line price.