New windows and doors improve comfort, cut energy bills and add long-term value to your home. Sightline Windows & Doors North Miami pairs proven product lines with our own installing crews for lasting performance - and a price we put in writing.
1. Choose your installer
The unit is half the job - the install is the other half. Our own background-checked crews measure, set, seal and insulate every opening, and they know the lines we quote inside and out because they install them every week.
2. Select the right products
Compare styles, materials and glass packages side by side until the fit is right for your rooms, your budget and your goals. The product-line comparison below is the place to start.
3. Prepare your home for install
Before install day we walk you through a short checklist - furniture pulled back, treatments down, a clear path to each opening - so install day is watch-it-happen, not scramble.
Compare the Lines We Quote
Every project is priced on the same lines, side by side - the price indicators below are relative, and your consultant shows exact numbers on your actual openings.
PGTThe line Florida homeowners arrive naming - the most Miami-Dade certifications in the industry$$$
- More Miami-Dade NOA certifications than any other line we quote
- WinGuard, EnergyVue and ClassicVue Max systems built for every wind zone
- 99% on-time delivery keeps your install date on the calendar
CGIThe heavyweight impact line$$$$$
- Large-missile impact ratings for the strictest wind zones
- Architectural-grade aluminum with commercial-depth frames
- The line we quote when protection is the whole point
CWSThe Florida value pick$$
- Vinyl systems built in Florida for Florida codes
- Strong energy packages at the friendliest price point
- The smart start for whole-home replacements on a budget
ESWSlim lines, big glass$$$$
- Narrow-sightline aluminum for modern elevations
- Oversized openings and floor-to-ceiling glass
- Impact-rated without the bunker look
ECOThe aluminum impact workhorse$$$
- Miami-built aluminum impact systems
- A strong price-to-protection ratio for coastal homes
- Proven inventory lines with short lead times
Therma-Tru Custom & Geometric Windows in North Miami: What to Know First
As an independent Therma-Tru service provider, we handle custom and geometric window installations and replacements across North Miami with typical project turnaround of two to four weeks from measured survey to final inspection. Every job starts with a written price before any work begins - Haven Clause 1 - and closes with a documented photo record. Most Therma-Tru custom and geometric window projects in North Miami fall between $1,800 and $4,500 per opening, depending on shape complexity and whether the existing frame can be retained.
This page is for North Miami homeowners who already own Therma-Tru products and need arched, curved, geometric, or oversized custom windows installed or replaced - not for buyers comparing brands from scratch. If you’re seeing seal failure in a radius-top unit, fogging between panes in a trapezoid, or you’ve been told your shaped opening “can’t be matched,” call (786) 706-0468. We’ll measure, write the price, and let you keep the survey.
How Therma-Tru Products Fail - and How We Fix Them
- Radius-top seal degradation in Classic-Craft collections. The curved sash geometry in Classic-Craft radius units creates uneven thermal expansion stress at the springline where the arch meets the jamb. After seven to ten years in North Miami’s salt-air cycle, the dual-seal silicone bed separates at this junction. We see this most often in Keystone Point and Sans Souci homes built during the 2015-2019 window boom. Our fix: remove the sash, re-bed with OEM-compatible structural silicone rated for 180-degree surface exposure, and replace the warm-edge spacer with a stainless-steel laminate that matches the original sightline.
- IGU fogging in Profile geometric configurations. Therma-Tru’s Profile series uses a thinner IGU stack in custom shapes to maintain sightline consistency, which leaves less desiccant margin for the edge seal. When North Miami’s afternoon rain cells hit sun-heated glass, the rapid temperature delta overwhelms the PIB primary seal. We replace with a thicker IGU built to the same overall dimensions but with a warm-edge stainless spacer and 30% additional molecular sieve - sightline stays identical, thermal performance improves.
- Frame deflection in oversized Direct Set units. Direct Set geometric windows over 48 inches on the diagonal often show corner-joint creep in aluminum-clad configurations, especially where the original installer shimmed against drywall instead of structural framing. The tell is a visible shadow line at the miter that widens seasonally. We pull the unit, sister the rough opening with treated lumber per Miami-Dade wind-borne debris requirements, and reset with composite shims that don’t compress under sustained load.
- Hardware misalignment in Multi-Point locking systems on arched units. The curved frame of an arched Therma-Tru door or window throws off the geometry of multi-point lock rods, particularly where the deadbolt engages at the springline. Owners describe it as “the handle turns but doesn’t catch.” The root cause is usually rod stretch from thermal cycling, not hardware failure. We measure rod travel with a dial indicator, replace with OEM-spec stainless rods cut to corrected length, and re-pin the keepers rather than replacing the full multipoint - which saves roughly $340 per unit.
- Coastal corrosion in exterior cladding at miter joints. Therma-Tru’s aluminum cladding is anodized, but custom miter cuts for geometric shapes expose bare substrate at the joint. In North Miami’s zone 3 salt exposure, we see pitting progress to perforation in four to six years on east-facing units. We treat with chromate conversion coating, apply two-part epoxy seam sealer, and finish with color-matched Kynar touch-up - not standard paint, which fails in eighteen months here.
Before
AfterOur Therma-Tru Custom & Geometric Windows Process
- 1
Measured survey you keep. Sonia Raman or a verified crew member arrives with a laser measure, level, and documentation tablet. We record rough opening dimensions, existing frame condition, and sightline measurements to 1/16 inch. You receive the survey before we leave.
- 2
Written price before any work starts. The quote references your survey by job number. No verbal ranges, no “we’ll see when we open it up.” Haven Clause 1: the measurement and the quote are the same document.
- 3
Parts decision with full disclosure. For Therma-Tru custom shapes, we source OEM sashes and IGUs when lead times allow. When a 10-14 week factory backlog would leave your opening boarded, we specify quality aftermarket alternatives built to the same NFRC performance data - documented in writing, not assumed equivalent.
- 4
Installation under Miami-Dade notice of acceptance criteria. Impact-rated geometric units receive fastening schedules per TAS 201/202/203 or ASTM E1886/E1996 as applicable. We photograph every rough opening, every fastener pattern, and every sealant joint.
- 5
Operational test and final documentation. Each unit is cycled twenty times, locks are torque-tested, and the photo record is uploaded to your job folder. The 365-Day Done Right Promise is stamped and dated.
- 6
Cleanup and walkthrough. We leave the site with debris removed and the written warranty in your hand, not promised by email later.
What Therma-Tru Custom & Geometric Windows Costs in North Miami
| Scenario | Typical Range | What Moves Price |
|---|---|---|
| Standard geometric IGU replacement (trapezoid, triangle, octagon) | $1,800 - $2,800 | Low-E coating type, grid pattern, whether frame is reusable |
| Radius-top or arched sash replacement | $2,400 - $3,600 | Springline height, clad vs. primed exterior, impact rating |
| Oversized Direct Set geometric (over 48″ diagonal) | $3,200 - $4,500 | Structural reinforcement needed, crane or boom access, permit type |
| Multi-point hardware realignment on arched unit | $380 - $620 | Number of locking points, rod material (stainless vs. plated) |
| Clad repair at miter joints (corrosion treatment) | $450 - $780 | Extent of substrate damage, color match complexity |
These ranges reflect North Miami labor rates and Miami-Dade permit requirements as of 2024. Every estimate is free, written, and itemized. Bring us a competitor’s quote and we’ll review it at no charge - Haven Clause 5, No Surprises.
Why North Miami Homeowners Call Sightline Windows & Doors North Miami for Therma-Tru Work
We’ve installed and serviced Therma-Tru products in North Miami since 2012, including a concentrated run of retrofit projects along the Biscayne corridor near the North Miami Public Library that taught our crew more about aging aluminum frames than any product manual. When a Therma-Tru custom shape is discontinued or backordered, we don’t stall your job - we draw from seven additional verified manufacturer lines (PGT, CGI, CWS, ES Windows, ECO Window Systems, Mr-Glass, and ViewLux) specified by what the opening requires, not by what is in stock.
Our technicians are background-checked, uniformed, and identified by license number before arrival - Haven Clause 3, Verified Crews. The 365-Day Done Right Promise is written into every contract, not offered as a courtesy. And the price you sign is the price you pay; we haven’t written a change order in twelve years. Measure once, document everything, explain the rest in plain English.
FAQs
No. As an independent Therma-Tru service provider, we perform warranty-safe work using OEM or OEM-compatible parts, and we document every component by serial number. Therma-Tru’s limited warranty covers manufacturing defects regardless of who installs, provided the product was originally purchased from an authorized dealer and installed per published guidelines. We keep copies of installation manuals on file for every series we service. Call (786) 706-0468 and we’ll verify your unit’s eligibility before scheduling.
OEM custom shapes from Therma-Tru typically ship in 8 to 14 weeks. We quote this lead time in writing at survey, and if your opening can’t wait, we specify quality aftermarket alternatives with identical NFRC ratings - documented, not assumed. For standard geometric IGUs in Profile or Classic-Craft lines, we often source in 3 to 5 weeks through our regional fabricator network.
Yes, in most cases. We templated the original sightline and glazing stop dimensions, then fabricate a replacement unit to those exact specifications using our multi-brand capability. For North Miami homes with 2015-2018 vintage Profile geometric units, we’ve successfully matched sightlines using ES Windows and CWS custom programs when Therma-Tru no longer stocks the profile. The replacement carries its own product warranty and our 365-Day Done Right Promise on installation.
Replace the IGU if the frame is sound - it’s 40% less than full unit replacement and preserves your interior trim. We replace just the glass unit in about 60% of Therma-Tru geometric calls in North Miami. If the frame shows deflection, corrosion, or sealant failure at the miter, full replacement is the honest recommendation. We’ll tell you which after opening the survey, not after opening the wall.
Yes, for any replacement that alters the rough opening or involves impact-rated product. North Miami requires a building permit and Miami-Dade product approval documentation for impact-rated installations; we pull both, schedule inspection, and pass the certificate to you. Non-impact geometric IGU replacement in an existing sound frame typically does not require permitting, and we’ll note that in your written scope. Call (786) 706-0468 for an exact quote - estimates are free.
Ready to schedule your measured survey? Call (786) 706-0468. We’ll bring the laser measure, write the price before any work starts, and leave you with the documentation.
Written by Sonia Raman, Owner, Sightline Windows & Doors North Miami at Sightline Windows & Doors North Miami, serving North Miami and nearby areas.
Six Reasons Homeowners Choose Sightline Windows & Doors North Miami
Impact systems engineered to design pressures up to +/-100, matched to your wind zone - your openings hold when the storm arrives.
Low-E insulated impact glass from our manufacturer lines commonly cuts monthly cooling bills 20-30%.
Laminated impact glass shuts out up to 40% of outside noise - traffic, neighbors, weather.
Monitoring services run $30-90 a month. Laminated impact glass resists forced entry around the clock, with no subscription.
Florida homeowners average around 25% savings on the windstorm portion of their policy after protecting every opening - some homes qualify for more.
A full impact package upgrades curb appeal, buyer confidence and appraised value in one project.
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