Polk County is one of Florida's fastest-growing new-construction corridors — and every one of those new homes eventually wants a screen room, pool cage, pergola or covered patio. We prepare the PE-sealed permit package, submit it to the county or your city, and see it through to approval. Lakeland, Davenport, Winter Haven, Four Corners and everywhere in between.
The stretch from Four Corners down through Davenport and across to Lakeland and Winter Haven has been adding rooftops at a remarkable pace — and behind nearly every one of them comes a backyard project. Builders leave the patio bare; homeowners call an aluminum contractor; the contractor needs sealed engineering before Polk County will issue a permit. That last step is exactly what we do, at a flat rate, without anyone needing to visit the site.

With the volume of construction moving through Polk County's building department, incomplete applications sit. A complete, sealed, site-specific package is what keeps your project out of the correction cycle.
Screen enclosures, pergolas, lanais and covered patios all require drawings and wind load calculations prepared for your specific site and sealed by a Florida PE. Member sizes, connections and anchors must trace back to the calculated loads.
Polk County and its municipalities accept electronic plan submission; where paper is still used, two signed and sealed plan sets are the standard. We format the package for whichever route your jurisdiction takes.
Design wind speed is typically around 139 mph (Vult), confirmed per site during design. Inland Polk avoids coastal zones, but uplift on a screen roof at 139 mph is still what fails unengineered structures — every connection has to be sized for it.
The county wants a survey-based site plan showing setbacks; new Davenport and Four Corners communities also want HOA architectural approval, which is separate from the permit. Our sealed drawings typically serve both submissions.
Every package below includes engineering, calculations, the PE seal, and submission to Polk County or your municipal building department. Same-day proposal on request.
| Service | Flat Rate |
|---|---|
| Pool Enclosure (Screen Cage over Pool) | $2,000 |
| Screen Enclosure / Screen Room (No Pool) | $1,500 |
| Lanai Enclosure | $1,200 |
| Covered Patio | $1,200 |
| Pergola | $1,000 |
| Outdoor Kitchen | $900 |
| Concrete Slab | $900 |
| Pool Demolition | $800 |
| After-the-Fact Permit (Unpermitted Structure) | from $1,500 |
Your property survey and a few photos tell us everything a site visit would. That's how we serve Lakeland and Four Corners just as quickly as our home base — and how out-of-state owners of Davenport vacation homes get permits without flying in.
Address, structure type, dimensions, survey and photos — email or WhatsApp
Flat-rate PDF proposal with full scope, price and timeline
Site-specific design per FBC 2023 / ASCE 7-22 in 5–7 business days
Filed with Polk County or your city · revisions free until approved
In a market growing this fast, contractors can't afford permit packages that bounce. Our drawings are built to clear review the first time, our proposals arrive the same day, and the engineer who seals the package is the person who answers your call.
Aluminum and pool contractors working the Davenport and Four Corners corridor send us job after job because the process is repeatable: same flat rate, same 5–7 day turnaround, same first-pass quality, every time.
We regularly engineer enclosures and patios for homes only months old — matching existing slabs, tying into builder construction, and packaging drawings so both the county and the HOA architectural committee are satisfied.
Engineering, seal, submission and every county-requested revision are in the price. If Polk County's reviewer asks for changes, that's our job to resolve — not a new invoice.

Engineering is done in 5–7 business days. County review varies with Polk's heavy new-construction volume — plan on a few weeks for residential accessory structures. We submit for you and resolve reviewer comments free until approval.
Typically around 139 mph (Vult) per ASCE 7-22, confirmed per site during design. Exposure category can differ between open lakefront land near Winter Haven and dense Davenport subdivisions.
You'll typically need both HOA architectural approval and the county permit — two separate processes. Our sealed engineering package covers the county requirement and usually satisfies the HOA's documentation request too.
Yes. Polk municipalities run their own building departments. We determine which jurisdiction covers your address and submit the package there.
Yes. Many of our Polk clients own vacation or investment homes near Four Corners and never set foot in Florida during the process. Everything is handled remotely.
Same-day flat-rate proposal, PE-sealed package in 5–7 business days, submitted to Polk County for you — with revisions free until it's approved.