Free in-home measure and quote - PGT, CGI and CWS impact lines compared on your actual openings, style by style
Windows & Doors Specials in Three Lakes, FL
We don’t run rotating promotions at Sightline Windows & Doors Three Lakes. What we run are standing policies that happen to save you money. Call (786) 808-5792 and we’ll tell you which Haven Standard clauses apply to your job.
Current Offers
Free Second Opinion on Any Written Estimate
Bring us a competitor’s written quote for window or door work anywhere in Three Lakes and we’ll review it at no charge. We’ll measure the same openings, check the specified products against what your glazing package actually needs, and tell you where the numbers come from. Valid through December 31, 2026. Mention this offer when you call (786) 808-5792.
Measured Survey Included on Every Visit
Every appointment starts with a documented survey of your openings - frame readings, sightline measurements, and square footage - and you keep the document. Other companies in the Three Lakes market charge for this or fold it into a “consultation fee.” We don’t. It’s Haven Clause 1: the measurement and the quote are the same paper. Valid through December 31, 2026. Mention this offer when you call (786) 808-5792.
Written Price Before Any Work Starts
This isn’t a discount code. It’s how we’ve operated since 2012. Your quote is fixed, line-itemed, and signed before a technician touches your frame. No change orders, no “we found rot” surprises. In Three Lakes, where humidity and salt air hide damage behind trim, that written scope matters. Valid through December 31, 2026. Mention this offer when you call (786) 808-5792.
Documented Photo Record on Every Job
We photograph before, during, and after - not as an upsell, but as standard evidence under Haven Clause 4. In Three Lakes, where impact-rated installations must pass Miami-Dade and Broward inspection protocols, that photo record protects your warranty claim and your insurance position. You get the folder. Valid through December 31, 2026. Mention this offer when you call (786) 808-5792.
365-Day Done Right Promise
If it’s not done right, we make it right - written into every contract, not offered as a courtesy. We’ve honored this in Three Lakes since 2012 on 18,000+ installations. It covers labor, sealing, hardware function, and operation. The promise is stamped on your paperwork, not verbal. Valid through December 31, 2026. Mention this offer when you call (786) 808-5792.
Verified Crew Guarantee - Background-Checked, Uniformed Technicians
Haven Clause 3 means the person at your Three Lakes door arrives with a license number you can verify, in uniform, with a photo ID that matches our dispatch record. No subcontractors pulled from a labor pool. This isn’t a premium tier. It’s the only way we send someone to your home. Valid through December 31, 2026. Mention this offer when you call (786) 808-5792.
How to Redeem

Step 1: Call and mention the offer. When you reach us at (786) 808-5792, tell us which Haven Standard policy you’re asking about. Our phones are answered live, 24/7 - not a callback window.
Step 2: Book the measured survey. We schedule a visit to your Three Lakes home. You keep the survey document. The quote derives directly from those measurements.
Step 3: Present your paperwork at service. Bring any competitor estimate for the free second opinion, or simply reference the Haven Clause you want applied. The written price, photo record, and Done Right Promise activate automatically.
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AfterWhat These Offers Actually Cover in Three Lakes
Three Lakes sits in Miami-Dade County’s High-Velocity Hurricane Zone. That means every window and door installation must meet specific impact-rated standards or include approved shutters. Our offers apply across eight product lines - PGT, CGI, CWS, ES Windows, ECO Window Systems, Mr-Glass, Therma-Tru, and ViewLux - specified by what your opening requires, not by what we have in the warehouse.
Energy-efficient packages with low U-factor and SHGC ratings qualify for the same protections. Custom and geometric windows, sliding and patio doors, impact garage doors - all covered under the same written-price, photo-record, Done Right framework.
We’ve measured frames in Three Lakes that were three inches out of plumb. We’ve found original builder installations with no fastening to structural members. The free second opinion exists because we’ve seen quotes that specified the wrong impact rating for the exposure, or missed the second-floor wind-load requirement entirely. The measured survey exists so you have evidence if a future buyer or insurance adjuster asks questions.
Why We Don’t Do Percentage-Off Sales

Haven Clause 1 forbids it. A percentage off a padded number is theater, not value. Our pricing is fixed to the product tier, the opening condition, and the labor required. The “special” is that you see the math before anyone starts, and the number doesn’t change.
In 18,000+ installations since 2012, we’ve never written a change order for “unforeseen conditions.” We find the conditions during survey. We price them. You sign. That’s the offer.
Frequently Asked Questions
These aren’t coupon codes to stack. They’re operating standards that apply to every job. The free second opinion, written price, photo record, and Done Right Promise all travel together on every Three Lakes installation. Call (786) 808-5792 to confirm what your specific opening qualifies for.
We don’t match percentage discounts because we don’t know what base they apply to. Bring us the written estimate and we’ll do a line-item comparison of product spec, labor scope, and permit handling. Often the “cheaper” quote specifies a lower impact rating or omits the permit pull. The second opinion is free - call (786) 808-5792.
Yes. We set an annual review date for all policy language. These Haven Standard clauses have been in force since 2012 and renew automatically unless we notify you otherwise. The date gives us a clean calendar checkpoint, not urgency pressure.
Complex jobs are where the written price matters most. We measure every opening individually, specify the product by performance tier, and itemize labor by task. Custom geometric windows, impact garage doors, multi-slide patio systems - all quoted the same way. No surprises. Call (786) 808-5792 to schedule the survey.
It covers our installation workmanship - sealing, leveling, hardware function, operation. Manufacturer defects on PGT, CGI, CWS, ES Windows, ECO Window Systems, Mr-Glass, Therma-Tru, or ViewLux products are handled through the manufacturer’s warranty, which we document and explain before you sign. The photo record we create supports both claims. Call (786) 808-5792 for specifics on your product line.
Any property owner in Three Lakes, FL, or the surrounding Miami-Dade service area. We don’t restrict by neighborhood, home age, or project size. The Haven Standard applies to a single window replacement or a full-home impact package equally. Call (786) 808-5792 to book.
Written by Sonia Raman, Owner at Sightline Windows & Doors Three Lakes, serving Three Lakes since 2012.










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