Free in-home measure and quote - PGT, CGI and CWS impact lines compared on your actual openings, style by style
Fast, Reliable Sliding & Patio Doors Across Three Lakes
Sliding and patio door replacement in Three Lakes, FL runs $2,800-$6,500 for most residential jobs, with impact-rated units mandatory under Miami-Dade’s High-Velocity Hurricane Zone code. We measure, quote, and install across Three Lakes from our Miami office, with crews carrying Miami-Dade NOA products and county permits ready for the acreage lots and outbuildings common here. Call (786) 418-6182 to schedule your free measured survey - the document you keep, and the price we honor.
Three Lakes isn’t like the city-core neighborhoods to the north. Homes sit on half-acre to multi-acre parcels, many down gravel-paved roads off SW 112th Avenue or SW 137th Avenue, with septic systems, well setbacks, and outbuildings that change how a sliding door job gets scoped. We’ve replaced failed aluminum sliders on CBS ranches near Three Lakes Park and installed impact French patio doors on detached ADUs off SW 264th Street. The county permit, the equipment access, the grade correction - these aren’t afterthoughts here. They’re built into our measured survey before we quote.
Why Sightline Windows & Doors Florida City Is Three Lakes’s Preferred Sliding & Patio Doors Company
We’ve installed and replaced sliding and patio doors across the Three Lakes area since adding Miami-Dade HVHZ service to our operations. Our crews know the difference between a city permit pull and the county sequence Three Lakes requires. That matters when your inspection is scheduled and the inspector is checking for Miami-Dade NOA stickers, not just general impact ratings.
Three Lakes homeowners review us on the same platforms they use to research every contractor - and they read the three-star reviews first, looking for how we responded. Our documented photo record on every job, our 365-Day Done Right Promise stamped under the Haven Standard, and our written price before any work starts give them evidence to evaluate, not promises to trust.
Dispatch and scheduling are coordinated from our Miami office, with crews serving Three Lakes locally. Response time to Three Lakes is typically next-day for measured surveys, with installation scheduling based on county permit turnaround - usually 10-14 business days for a sliding door replacement, longer if grade correction or drainage work is required.
Our Sliding & Patio Doors Services in Three Lakes

Impact Sliding Glass Doors
Every impact sliding glass door we install in Three Lakes carries a Miami-Dade Notice of Acceptance - not just impact-rated, but HVHZ-certified with laminated glass interlayer and large-missile rating. This is non-negotiable under county code, and it’s why we stock PGT and CGI lines specified by NOA number, not by general catalog. On acreage lots, we also verify equipment access: a 10-foot slider can’t always make it down a gravel road on a standard boom truck, so we plan offloading and hand-carry routes into the survey. A typical impact sliding glass door installation in Three Lakes runs $3,200-$5,800, including county permit, inspection, and wind mitigation documentation.

Patio Doors
Standard patio door replacement in Three Lakes means upgrading from 1980s aluminum-frame units that have rotted jambs, corroded tracks, and failed weatherstripping from years in the heat-humidity cycle. We specify Therma-Tru and ViewLux lines by performance tier - U-factor and SHGC ratings matter here, where summer cooling loads are extreme. Our Sliding & Patio Doors team measures the rough opening, checks the slab and grade, and notes any septic or well setback that affects equipment placement. The quote includes frame, hardware, installation, and the documented photo record you receive at completion.

Sliding Glass Door Replacement
Replacement jobs in Three Lakes often reveal more than the homeowner expects. Original sliders on 1970s-1990s CBS homes frequently have water-damaged jambs concealed by interior trim, and the exterior grade may slope toward the threshold - a code violation we correct before setting the new frame. We saw-cut and re-grade when needed, as we did on a half-acre lot off a gravel-paved road where a failed 1988 aluminum slider had rotted from standing water against the slab. The PGT impact replacement passed county inspection on the first pull, with wind mitigation report issued same week. Full replacement with grade correction in Three Lakes typically runs $3,800-$6,500.

Impact French Patio Doors
Impact French patio doors add hinged operation and wider sightlines to Three Lakes homes, but they demand precise frame alignment and HVHZ-rated hardware that standard French lines don’t carry. We specify CGI and PGT impact French units with Miami-Dade NOA, installed with proper sill pan and positive drainage slope. On acreage lots with outbuildings or detached ADUs, the same NOA requirement applies - county code doesn’t exempt secondary structures. We pull one permit covering all units on the parcel, sequencing inspection to minimize return trips.

Screen Door Installation
Screen doors for impact sliding and French units in Three Lakes use heavy-duty mesh rated for HVHZ wind loads, not standard fiberglass. We match screen frames to the door manufacturer’s specifications to preserve warranty and NOA compliance. Retrofit screen installation on existing impact doors runs $380-$650 in Three Lakes.

What happens when you call
- 1
A real person answersNo phone trees - you reach a local pro.
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You get an upfront price rangeHonest numbers before anyone is dispatched.
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A background-checked tech heads outLicensed & insured, dispatched right away.
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You approve before work beginsNothing starts until you say go.
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AfterTrusted Brands We Service in Three Lakes
We stock and install from eight manufacturer lines, specifying by what the opening requires rather than what’s in the warehouse. For Three Lakes’s HVHZ mandate, we lean on PGT and CGI for impact sliding and French patio doors - both carry extensive Miami-Dade NOA portfolios with documented large-missile and cyclic pressure ratings. Therma-Tru supplies our hinged patio door hardware and frame systems, while ViewLux covers specialty sizes and custom sightline requests. We don’t push lines by margin; we match the product to the permit, the exposure, and the performance tier the homeowner needs. Local inventory sits in our Miami distribution point, with county-coded units pulled to order - no substitutions after survey.
Common Sliding & Patio Doors Problems We See in Three Lakes Homes

- Corroded aluminum tracks and rotted jambs on 1980s CBS ranches. Original sliders on Three Lakes homes built before 1993 have tracks that hold water after summer convective storms, and the jamb wood behind the aluminum cladding rots before the frame shows visible damage. We find this on nearly every pre-Andrew replacement we survey.
- Seal degradation from the persistent heat-humidity cycle. Three Lakes’s subtropical climate degrades weatherstripping faster than drier inland Florida. A slider that sealed adequately at five years may leak air and water at seven, even with no visible frame damage. The cooling bill climbs before the homeowner notices the draft.
- Surface water directed toward the threshold by incorrect grading. Open acreage lots often shed water toward the house pad rather than away from it. Even a correctly installed impact sliding glass door will leak if the exterior grade sends storm runoff to the sill. We check this on every Three Lakes survey and scope correction when needed.
- Material damage from long hauls on unpaved access. Sliding door frames offloaded at the road and hand-carried across uneven ground risk racking, corner damage, or glass stress fractures before installation. We plan delivery routes and crew size for Three Lakes’s gravel-road properties to prevent this.
Pricing for Sliding & Patio Doors in Three Lakes, FL
Here’s what sliding and patio door work costs in the Three Lakes market, based on our 2024-2025 measured surveys and county-permitted installations:
| Service | Typical Range |
|---|---|
| Impact sliding glass door (standard 6’-8′ opening) | $3,200 - $5,800 |
| Impact sliding glass door with grade correction | $3,800 - $6,500 |
| Impact French patio door (single or double) | $4,500 - $7,200 |
| Standard patio door replacement (non-impact, interior use only) | $2,800 - $4,200 |
| Screen door installation (impact-rated) | $380 - $650 |
| Outbuilding / ADU impact slider (same NOA requirements) | $3,000 - $5,400 |
Factors that move the price: equipment access distance from paved road, grade correction and swale cutting, jamb replacement versus frame-only, and whether the county requires a second inspection for drainage work. We scope all of this during the measured survey you keep, and the written quote matches that document exactly - Haven Clause 1. No change orders. Call (786) 418-6182 for your free estimate.
We Also Serve Cities Near Three Lakes

Our crews handle Sliding & Patio Doors in Three Lakes and surrounding communities including Florida City, Homestead, Leisure City, and Naranja - all within Miami-Dade’s HVHZ, all with the same county permit sequence and NOA requirements. The measured survey, written price, and documented photo record apply to every opening we touch.
Serving Three Lakes, FL - Our Local Coverage Area
We’re based in the Three Lakes area and know this community well. Use the map below to see our service coverage - if you’re nearby, we can almost certainly help.
FAQs - Sliding & Patio Doors in Three Lakes

Yes, and yes. Miami-Dade County code applies the same HVHZ impact requirements to all structures on the parcel, including detached ADUs, workshops, and pool houses. We pull a single county permit covering all units, specify PGT or CGI impact sliders with Miami-Dade NOA for every opening, and sequence inspection to include every door on the property. Call (786) 418-6182 to schedule a survey that covers your main house and outbuildings in one visit - estimates are free.
The exterior grade is likely sloping toward the threshold, sending storm runoff to the sill instead of away from it. Three Lakes’s open lots and acreage parcels often have this drainage pattern, and even a new impact slider will leak if water pools against the track. We check grade on every survey and scope correction - saw-cutting a shallow swale and re-sloping the pad - before we set the frame. The fix is usually $400-$800 added to the door replacement, and it prevents the same failure from recurring.
They can, if your policy offers wind mitigation credits and the installation is documented with a wind mitigation report. We issue that report same-week on every completed impact slider in Three Lakes, stamped with the Miami-Dade NOA product approval and installation method. Whether your specific carrier applies the credit depends on your policy terms, but the documentation we provide is what the underwriter needs to evaluate it. We don’t guarantee premium reductions; we guarantee the evidence your carrier requires.
Three Lakes is unincorporated Miami-Dade, so permits route through the county’s Central Inspections office, not a municipal building department. The inspector checks for Miami-Dade NOA stickers, proper HVHZ installation methods, and wind-borne debris compliance - a stricter sequence than some city departments require. Lead time is typically 10-14 business days for standard sliding door replacement, longer if drainage or grade work triggers a second inspection trade. We handle the pull, the scheduling, and the inspection coordination as part of every job.
A properly specified impact slider with low U-factor and SHGC ratings will reduce solar heat gain and air infiltration compared to a failed 1980s aluminum unit, but we don’t quote percentage savings - too many variables in home size, duct layout, and thermostat behavior. What we document: the U-factor and SHGC of the product we specify, the air leakage rating, and the before-and-after photo record of seal and frame condition. That evidence lets you evaluate the performance claim with your energy auditor or utility provider. Call (786) 418-6182 to review spec sheets during your free survey.
Written by Sonia Raman, Owner at Sightline Windows & Doors, independently owned and operated under the Haven Standard since 2012.










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