Free in-home measure and quote - PGT, CGI and CWS impact lines compared on your actual openings, style by style
Fast, Reliable Impact Windows & Doors Across Coral Gables
Window Replacement in Coral Gables requires clearing two separate approval layers: Miami-Dade County’s High Velocity Hurricane Zone impact-rating code and the city’s charter-mandated Board of Architects, which reviews every exterior opening for Mediterranean Revival character. A typical permitted job runs $890-$4,200 per opening depending on size, custom fabrication needs, and hardware grade. Call (786) 808-5792 to schedule your measured survey - the written quote you receive is the same document that governs the final invoice.
Our crews serve Coral Gables from the brand’s Miami office, dispatching with field-verified templates, full submittal packets, and the eight manufacturer lines we specify by performance tier. We’ve learned the rhythm of Granada Boulevard, the arched steel casements of the Country Club Prado historic district, and the salt-air corrosion patterns that hit homes west of Old Cutler Road harder than inland blocks. That local knowledge keeps fabrication accurate and Board review moving.
Why Sightline Windows & Doors Three Lakes Is Coral Gables’s Preferred Impact Windows & Doors Company
We’ve installed impact windows and doors in Coral Gables since the brand’s founding in 2012, completing jobs from the Gables Estates perimeter to the northern edge of the Biltmore neighborhood. Every one of those 18,000+ openings left with a written price before work started, a documented photo record when finished, and the 365-Day Done Right Promise stamped under the Haven Standard.
Coral Gables homeowners research before they call. They read three-star reviews for the specifics - what broke, what got fixed, what the crew left behind. Our reviews from Coral Gables customers consistently cite the measured survey they keep, the license number shown on arrival, and the photo record emailed same-day. Haven Clause 3 means our technicians are background-checked, uniformed, and identified by license number before they reach your door - not subcontracted labor with a borrowed shirt.
Calls to (786) 808-5792 are answered by a live person, 24/7. No callback window, no voicemail queue. Scheduling is coordinated from our Miami office with Coral Gables-specific lead times built in - standard for stock units, extended for custom segmented impact windows requiring Board of Architects submittal and approval.
Our Impact Windows & Doors Services in Coral Gables

Hurricane Impact Windows
Hurricane impact windows in Coral Gables must carry a Miami-Dade Notice of Acceptance to satisfy HVHZ code, but that NOA alone doesn’t guarantee Board of Architects approval. We specify hurricane impact windows from PGT, CGI, and ECO Window Systems with documented NOA numbers and Mediterranean Revival-compatible sight lines - arched tops, simulated divided lites, approved frame finishes - so the submittal packet clears both layers without revision. A typical hurricane impact window replacement on a Coral Gables single-family home runs $1,200-$3,800 per opening.

Single Hung Impact Windows
Single hung impact windows suit the vertical proportions of George Merrick-era Mediterranean Revival facades, where the fixed upper sash and operating lower sash replicate the original steel casement rhythm. In Coral Gables, we regularly see original steel single hungs on 1920s CBS walls with jamb depths exceeding six inches - standard replacement frames won’t cover the stucco return without exposed trim that fails Board review. Our measured survey captures the full jamb depth, and we specify single hung impact units from CWS or ES Windows with field-verified extension jambs and approved exterior profiles. Typical range: $890-$2,400 per opening.

Double Hung Impact Windows
Double hung impact windows see less use in strict Mediterranean Revival districts - the divided-lite pattern and meeting-rail sight line differ from original casement character - but they’re appropriate for Coral Gables additions, second-story renovations, and homes on streets with mixed architectural periods. We specify double hung impact windows from ViewLux when the opening geometry and Board context allow both sashes to operate. The tilt-in feature simplifies cleaning on second-story installations common north of Coral Way. Range: $1,100-$2,800 per opening.

Wind Mitigation & HVHZ Code Compliance
Every impact window and door installed in Coral Gables must comply with Miami-Dade HVHZ standards - the toughest mandatory window rating in the continental US. Our Impact Windows & Doors team prepares the full compliance packet: product NOA numbers, design pressure calculations for the specific opening size and exposure, and installation details that match the approved assembly. For Coral Gables homeowners submitting to their insurance carrier for wind mitigation credits, we document the installation with photos of the fastening pattern, sealant bead, and product label - the evidence your underwriter requires. This documentation is standard on every job, not an upsell.

What happens when you call
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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 Coral Gables
We draw from eight verified manufacturer lines - PGT, CGI, CWS, ES Windows, ECO Window Systems, Mr-Glass, Therma-Tru, and ViewLux - specifying by what the Coral Gables opening requires, not by what sits in a warehouse. For the Board of Architects, that means bronze-anodized or earth-tone frames from ECO Window Systems and Therma-Tru entry systems with approved panel profiles. For the salt-air corridor west of Biscayne Bay, it means marine-grade hardware finishes on Mr-Glass and ViewLux units that resist pitting longer than standard inland specifications. We don’t stock “local parts” in the traditional sense - we measure, specify, and fabricate to the opening so the unit arrives correct the first time.
Common Impact Windows & Doors Problems We See in Coral Gables Homes

- Board of Architects rejection of code-compliant units. A fully NOA-certified impact window gets rejected because the frame color, muntin pattern, or sight line doesn’t match the Mediterranean Revival character of the block. This dual-layer failure - code-passing but aesthetic-failing - happens regularly in Coral Gables and essentially never in neighboring Kendall or West Miami, where no municipal architectural review exists.
- Original steel casements in arched or non-standard openings. The 1920s-1940s CBS walls of Coral Gables’s George Merrick-era homes contain steel casement windows with segmented tops or custom radii. Standard rectangular vinyl sliders won’t fit without filler framing that the Board flags immediately. Custom segmented impact units with matching design pressure ratings are required instead.
- Salt-air corrosion on aluminum frames and hardware. Coral Gables’s position at the western edge of Biscayne Bay’s salt-air corridor accelerates pitting and seizing faster than inland Miami-Dade communities. Hardware specified for standard inland conditions can fail within a few seasons unless marine-grade finishes are selected at specification.
- Thick CBS walls with non-standard jamb depths. Original Coral Gables masonry construction often exceeds six inches of stucco-clad concrete block. Stock replacement frames leave exposed returns or require unsightly trim extensions that fail Board review. Field-verified templates and custom extension jambs are standard on our measured surveys for these homes.
Pricing for Impact Windows & Doors in Coral Gables, FL
Impact window and door pricing in Coral Gables reflects two factors almost nowhere else in Miami-Dade combines: HVHZ-rated product cost and the custom fabrication required to pass Board of Architects review. Here’s what typical openings run in the current market:
| Product Type | Typical Range per Opening |
|---|---|
| Single hung impact window, stock size | $890 - $2,400 |
| Double hung impact window, stock size | $1,100 - $2,800 |
| Horizontal roller/slider impact window | $1,050 - $2,600 |
| Custom segmented impact window (arched, divided lites) | $2,200 - $4,200 |
| Impact entry door system | $1,800 - $3,500 |
| Impact patio/sliding door | $2,400 - $4,800 |
What moves a job within these ranges: custom fabrication for arched or non-standard openings, marine-grade hardware upgrades for salt-air exposure, Board of Architects submittal and revision cycles, and jamb depth requiring field-verified extension profiles. The measured survey we conduct before quoting captures all of this - the document you keep, and the document the final invoice matches. Haven Clause 1: the price is written before any work starts. Call (786) 808-5792 for your free estimate.
We Also Serve Cities Near Coral Gables

Our crews work throughout Miami-Dade County, including Coral Gables and surrounding communities. We also serve Homestead, where the housing stock shifts to newer construction with different Board review requirements but identical HVHZ standards. The same Haven Standard governs every installation - written price first, documented photo record at completion, 365-Day Done Right Promise on every job.
Serving Coral Gables, FL - Our Local Coverage Area
We’re based in the Coral Gables 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 - Impact Windows & Doors in Coral Gables

Yes. Coral Gables’s municipal charter requires Board of Architects approval for virtually every exterior window or door replacement, even when the product already holds a valid Miami-Dade NOA for HVHZ compliance. We prepare and file the submittal packet - elevations, color chips, muntin profiles, NOA numbers - as part of our standard process, and we sequence fabrication and installation to begin only after approval posts. Call (786) 808-5792 and we’ll walk through the specific requirements for your street and architectural context.
Yes, with custom segmented impact units. On a 1928 Mediterranean Revival home off Granada Boulevard, our crew replaced original steel casement windows with custom segmented impact units featuring simulated divided lites and a bronze-anodized frame that matched the Board’s approved palette. The jamb depth on the thick CBS walls required field-verified templates before fabrication, and we had the submittal packet approved on the first pass. Installation was sequenced to start the day after approval posted so the openings were never left exposed. The key is matching both the HVHZ design pressure rating and the Mediterranean Revival sight line - standard rectangular sliders won’t pass. Call (786) 808-5792 to schedule a measured survey of your specific openings.
HVHZ stands for High Velocity Hurricane Zone, the strictest mandatory window and door standard in the continental US. All of Miami-Dade County, including Coral Gables, falls within HVHZ, meaning every replacement window or door must carry a Miami-Dade Notice of Acceptance certifying it has passed missile-impact and cyclic pressure testing. For Coral Gables homeowners, HVHZ compliance is necessary but not sufficient - the Board of Architects adds a second layer of aesthetic review that no neighboring city imposes. We specify only NOA-certified products and prepare the compliance documentation your permit requires. Call (786) 808-5792 for specifics on your project.
Typically 3-6 weeks from submittal to approval, depending on the complexity of the opening and whether the home sits in a designated historic district. We use this interval for custom fabrication - the measured survey is completed, templates are field-verified, and units are ordered to spec so installation can begin within 48 hours of approval posting. Your home is never left half-finished waiting on a committee; we sequence the work so fabrication and review run parallel, not sequential. Call (786) 808-5792 to discuss timing for your specific street and product selection.
Yes, typically 15-30% on annual cooling load when replacing original steel casement windows with modern impact-rated units. The improvement comes from reduced solar heat gain (lower SHGC ratings) and eliminated air infiltration through corroded or poorly sealed original frames. In Coral Gables’s climate - where cooling runs eight to ten months annually and salt-air corrosion has degraded original window seals for decades - the payback period often falls under seven years. We specify U-factor and SHGC values by orientation in our written quote, not vague efficiency claims. Call (786) 808-5792 for a free estimate with performance specifications for your specific openings.
Written by Sonia Raman, Owner at Sightline Windows & Doors Three Lakes, serving Coral Gables since 2012 under the Haven Standard.










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