Free in-home measure and quote - PGT, CGI and CWS impact lines compared on your actual openings, style by style
The Sightline Windows & Doors Miami Lakes Guarantee
We stand behind every window and door we install in Miami Lakes with the Haven Standard, a five-clause commitment we’ve applied to every job since 2012. When our crew finishes your installation, you keep the measured survey we started with, the written scope we agreed to, and a documented photo record of the completed work. If something isn’t done right, we make it right - that’s the 365-Day Done Right Promise, written into every contract, not offered as a courtesy. In a market where some contractors treat guarantees as marketing language, we treat ours as a measurement: specific, documented, and binding.
What’s Covered
- Workmanship that matches the written scope. Our installation follows the manufacturer’s specifications for your exact product - whether that’s a PGT impact window rated for Miami-Dade’s HVHZ requirements or a custom geometric unit from ViewLux - and we document the completed work with photos you receive before we leave.
- Parts handled with traceable accountability. Every frame, sash, and hardware component comes from one of our eight verified manufacturer lines - PGT, CGI, CWS, ES Windows, ECO Window Systems, Mr-Glass, Therma-Tru, or ViewLux - and we record what was ordered, what arrived, and what was installed.
- Cleanup that leaves no evidence we were there, except the installation. Our crews remove old materials, protect your floors and landscaping during the job, and haul away debris; the photo record includes a final shot of the work area, not just the product.
- Arrival within the scheduled window, with advance notice. Haven Clause 2 means we confirm the appointment, call when we’re en route, and arrive in a marked vehicle with a uniformed technician whose license number matches what we provided - no substitutes, no surprises.
- Honest pricing that starts and ends with the same number. Haven Clause 1 requires that the measurement and the quote are the same document; the written price you approve before work starts is the price you pay, with no change orders for conditions we should have caught during survey.
Our Satisfaction Promise

If you’re not satisfied with any aspect of your installation, we have a specific process, not a vague assurance. Call us at (786) 755-8730 - a live person answers, 24/7 - and describe what doesn’t match the written scope. We’ll review your documented photo record against the measured survey and the manufacturer’s installation requirements for your product line. If we missed something, we return and correct it at no additional cost. This isn’t a favor; it’s Haven Clause 5, “No surprises,” and it’s stamped on every job. We’ve applied this standard across more than 18,000 installations since 2012, and we keep the records to prove it.
The 365-Day Done Right Promise covers the full workmanship period because some issues - seal performance after a full summer of Miami Lakes heat and humidity, hardware operation after repeated cycling, drainage path function after the rainy season - only reveal themselves with time. If a problem emerges within that window, we treat it as our responsibility to diagnose and resolve, not yours to prove causation. We’ve seen contractors in Miami Lakes try to blame settling, “normal wear,” or the homeowner’s maintenance habits for installation defects. We don’t. The Haven Standard says the documentation we keep - your survey, your scope, your photo record - settles the question of what we promised and what we delivered.
Before
AfterLicensed & Insured Backing
A guarantee is only as reliable as the business behind it. Sightline Windows & Doors Miami Lakes is state-licensed and carries the insurance and bonding required for window and door installation in Miami-Dade County, including work at height and structural opening modification. This isn’t paperwork we file and forget; it’s the financial backing that makes our promises enforceable. If a technician is injured on your property, our coverage responds. If an installation defect causes damage, our policy is in force. We’ve been licensed continuously since 2012, and we maintain coverage without gaps because gaps are how homeowners get left holding the bill.
Haven Clause 3, “Verified Crews,” extends this protection to who enters your home. Every technician is background-checked, uniformed, and identified by license number before arrival. You know who’s coming, we know who’s on the job, and the record exists if any question arises. In Miami Lakes, where we’ve worked in communities from Royal Oaks to Miami Lakes East, that traceability matters. A neighbor once showed us a competitor’s “warranty” that turned out to be a dead phone number and a dissolved LLC. Our backing doesn’t dissolve, and our phone is answered by a live person, not a recording.
What Documentation You Receive

Every Sightline customer in Miami Lakes leaves with four documents: the measured survey from our initial visit, which you keep and we reference; the written scope and price, signed before work begins; the documented photo record of completed installation; and the 365-Day Done Right Promise, with our (786) 755-8730 number and the specific clauses that apply to your job. These aren’t handouts - they’re evidence. If you ever need to invoke the guarantee, the paper trail exists in your file and ours.
We also offer a free second opinion on any written estimate from another contractor. Bring us their scope, and we’ll review it against what your openings actually require - frame condition, sightline measurements, glazing specifications, impact rating if you’re in a Miami-Dade HVHZ zone. We’ll tell you where the quote matches reality and where it doesn’t, at no charge. Haven Clause 1 applies to our review too: if we quote the work, the price is written before anyone starts.
How the Haven Standard Applies to Your Project
The five clauses aren’t abstract principles - they’re checklists our crews follow on every Miami Lakes job. Have it in writing: your survey, your scope, your price. Arrive on schedule: confirmed appointment, en-route call, on-time arrival. Verified crews: background-checked, uniformed, license number provided. Evidence on every job: photo record, documented completion. No surprises: the price doesn’t change, the product matches the spec, the guarantee is in the contract.
We’ve installed windows and doors in Miami Lakes homes facing the golf course at Miami Lakes Country Club, in townhomes near Main Street, and in single-family homes throughout the Royal Oaks and Lake of the Isles areas. The wind loads, sun exposure, and drainage conditions vary across those locations, but the Haven Standard doesn’t. Whether we’re specifying a CWS impact window for a second-story master bedroom facing west, a Therma-Tru entry door with proper sill pan flashing for a home near the lake, or a custom geometric unit from ViewLux for a contemporary facade, the documentation and the guarantee follow the same protocol.
Frequently Asked Questions

We return and make it right at no additional cost. Call (786) 755-8730, describe what doesn’t match your written scope, and we’ll review your photo record and measured survey against the manufacturer’s specifications for your product. The 365-Day Done Right Promise is binding, not optional. Call (786) 755-8730 to discuss any concern - estimates for correction work are free.
No. Haven Clause 1 states that the measurement and the quote are the same document. The written price you approve before work begins is the price you pay. We don’t issue change orders for conditions we should have identified during survey. If you bring us a competitor’s written estimate, we’ll review it free of charge and explain where their scope matches or misses what your openings require.
Yes, when the scope requires it. Miami-Dade County has specific requirements for impact-rated products in High-Velocity Hurricane Zones, and we handle permit submission, inspection scheduling, and sign-off as part of the written scope. The permit record becomes part of your documentation package. Call (786) 755-8730 to confirm whether your specific project requires permitting - we’ll tell you based on the product and location, not guess.
Haven Clause 3 requires that every technician is background-checked, uniformed, and identified by license number before arrival. We provide that number when we confirm your appointment, and the person at your door matches it. No day laborers, no unmarked vehicles, no substitutions without prior notice. In Miami Lakes, where we’ve served homeowners since 2012, that accountability is non-negotiable.
Your product carries the manufacturer’s warranty for the specific line installed - PGT, CGI, CWS, ES Windows, ECO Window Systems, Mr-Glass, Therma-Tru, or ViewLux. We specify the warranty terms for your exact product in your written scope, and we register the warranty with the manufacturer on your behalf. Our 365-Day Done Right Promise covers our installation workmanship separately; manufacturer warranties cover product defects. Both are documented, both are real, and neither depends on a verbal assurance.
Your own job will include a documented photo record as standard evidence, not an upsell. For references to prior work, call (786) 755-8730 and we’ll connect you with Miami Lakes homeowners who’ve agreed to discuss their experience. We don’t publish addresses without permission, and we don’t fabricate testimonials. The 18,000+ installations since 2012 are tracked in our records; specific local references are available on request.
Written by Sonia Raman, Owner at Sightline Windows & Doors Miami Lakes, serving Miami Lakes since 2012.










Before
After
Before
After
Before
After