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 Windows & Doors in North Miami, FL | Sightline Windows & Doors North Miami
North Miami Window Replacement for Therma-Tru fiberglass entry and patio doors typically runs $340-$780 for hardware and seal repairs, while full-frame HVHZ-rated replacements with Miami-Dade NOA-compliant assemblies range $2,800-$5,400 depending on opening size and permit complexity. We’re an independent Therma-Tru service provider - not manufacturer-authorized - which means our recommendations follow your home’s HVHZ requirements, not a brand program. Call (786) 706-0468 to schedule your free measured survey and written estimate.
Why North Miami Residents Choose Us for Therma-Tru Service

We’ve worked Therma-Tru fiberglass entry systems and patio doors across North Miami since before the current HVHZ rules tightened in 2014. Our crew knows the difference between a Fiber-Classic slab that can be saved and one that’s quietly wicking salt water through a swollen bottom rail in a Keystone Point canal-front home. Sonia Raman, who grew up in Miami and trained in building construction technology at Miami Dade College, still checks every rough opening twice before touching a shim - a habit from her college days that has saved more than one North Miami homeowner from a permit rejection.
We carry authentic Therma-Tru replacement hardware, sills, weatherstrip, and glass inserts for current and recent fiberglass lines. When a factory piece is discontinued or the lead time doesn’t match the need, we source quality aftermarket parts and document the substitution in writing. Every job starts with a measured survey you keep, and the written quote cannot differ from that document - Haven Clause 1. Our technicians are background-checked, uniformed, and identified by license number before arrival. Calls are answered by a live person, 24/7, not a voicemail queue.
Measure once, document everything, explain the rest in plain English.
Before
AfterCommon Therma-Tru Windows & Doors Problems We Solve in North Miami
- Fiberglass skin blistering at the bottom rail and hinge stile. Salt-laden air from Biscayne Bay and the Keystone Point canal system traps moisture in the paint film on Therma-Tru Fiber-Classic and Smooth-Star slabs. The blistering starts at the bottom rail, where capillary action pulls standing water from poorly detailed thresholds. In North Miami, we see this within four to six years on canal-front homes, not the decade-plus you’d expect inland.
- Multi-point lock hardware seizure. The bottom shoot bolt and roller assemblies on Therma-Tru Fiber-Classic 3-point locks oxidize in the salt air. North Miami’s humidity stays above 70% year-round, so the lubricants break down faster than Broward County’s drier microclimate allows. Your friend’s place in Plantation isn’t imagining things - their hardware genuinely lasts longer.
- Sidelite and decorative glass insert seal failure. Factory-bedded perimeter seals on Elegant Star, Saratoga, and similar Therma-Tru glass inserts shrink and crack under constant humidity and HVHZ pressure cycling. Water wicks into the slab bottom and threshold, often discovered only when the interior trim is pulled for an unrelated repair.
- Bottom rail wicking in 1950s-70s CBS openings. North Miami’s concrete block and stucco homes from this era retain original jalousie-era flashing details - or none at all. The sill pan was never detailed for current code. Even a sound Therma-Tru slab will take water if the rough opening below it is wrong.
- Hidden unpermitted openings behind drywall. In North Miami’s older rental corridors, we routinely find jalousie door openings that were plywood-boarded after a storm, drywalled over, and never permitted. A real-estate transaction or insurance inspection surfaces these, and the fix becomes a full Miami-Dade HVHZ permit for a new impact-rated assembly - not a Therma-Tru insert swap.
Therma-Tru Service in North Miami: What Local Conditions Mean for Your Equipment

North Miami sits entirely within Miami-Dade County’s High-Velocity Hurricane Zone, and that single fact reshapes every Therma-Tru service call we run. The HVHZ requires a Miami-Dade Notice of Acceptance for every window and door replacement - a standard explicitly stricter than neighboring Broward County’s. Most Therma-Tru products sold elsewhere in Florida do not carry this NOA. An out-of-county installer who doesn’t check the product label against the Miami-Dade approved-products database can install a door that fails inspection, leaving the homeowner to pull it and start over.
The city’s dense stock of 1950s-1970s CBS homes in neighborhoods like Biscayne Gardens and along NE 2nd Avenue still carries original jalousie windows and doors. These cannot be retrofitted to HVHZ compliance. They must be entirely removed and replaced with Impact Windows & Doors in North Miami. When we open a wall in these homes, we sometimes find the previous contractor’s shortcut: plywood rough-board, drywall, no permit, no inspection. The hidden opening becomes our problem to solve, and the homeowner’s cost to permit correctly. This is why we photograph every rough opening before we quote - Evidence on Every Job, Haven Clause 4.
Therma-Tru Models & Products We Service in North Miami
We service the full run of Therma-Tru fiberglass entry and patio door lines found in North Miami homes: Fiber-Classic and Fiber-Classic Oak Collection entry doors; Smooth-Star fiberglass entry doors; Pulse and Benchmark series patio and French doors; and Therma-Tru door glass and decorative glass inserts including Elegant Star, Saratoga, and similar patterns. Our Therma-Tru sales & service inventory covers authentic replacement hardware, sills, weatherstrip, and glass inserts for current and recent production. For discontinued lines or long-lead factory parts, we document the aftermarket substitution and its compatibility with your existing assembly. We do not stock or install non-HVHZ-rated Therma-Tru products for North Miami addresses - the NOA paperwork is non-negotiable, and we won’t quote a door that cannot clear Miami-Dade.
Therma-Tru Service Pricing in North Miami

Our pricing follows what we find in your opening, not a menu board.
| Service Category | Typical Range in North Miami |
|---|---|
| Multi-point lock hardware replacement (shoot bolt, roller, handle set) | $340-$580 |
| Bottom rail / threshold repair with sill pan reset and flashing | $680-$1,240 |
| Sidelite or decorative glass insert seal replacement | $520-$890 |
| Full-frame impact-rated entry door assembly with HVHZ NOA | $2,800-$4,600 |
| Full-frame impact-rated patio/French door assembly with HVHZ NOA | $3,400-$5,400 |
Cost drivers: opening size, whether the existing frame is structurally sound, permit complexity if hidden unpermitted work is discovered, and whether stainless hardware is required for canal-front exposure. Every estimate includes the measured survey you keep, the written scope, and the photo record. The written price cannot change once work starts - No Surprises, Haven Clause 5. Call (786) 706-0468 for your exact quote; estimates are free.
Serving North Miami, FL - Our Local Coverage Area
We’re based in the North Miami 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 - Therma-Tru Windows & Doors in North Miami

No, not if it was installed before the current HVHZ standards or lacks a Miami-Dade NOA for the complete assembly. Therma-Tru sells both HVHZ-rated and non-HVHZ-rated product lines, and many older Fiber-Classic and Smooth-Star slabs fall into the latter category. We inspect the product label and the rough opening; if the slab is sound but non-compliant, replacement with an HVHZ-rated assembly is the only path to a legal install. Call (786) 706-0468 and we’ll check your label against the database at no charge.
North Miami’s salt-laden air and sustained humidity above 70% degrade lock lubricants and oxidize metal components faster than Broward’s slightly drier, less exposed conditions. The bottom shoot bolt on a Therma-Tru 3-point lock typically seizes in four to seven years here, versus ten-plus inland. We replace with stainless hardware assemblies rated for marine exposure when the opening justifies it. Call (786) 706-0468 for an inspection and exact repair quote.
Yes. Every window and door replacement in North Miami requires a Miami-Dade NOA because the entire city falls within the HVHZ. We verify the NOA on every Therma-Tru product before quoting, and we pull the permit ourselves. An installer who skips this step is putting you at risk of a failed inspection and a reinstall. Call (786) 706-0468 to confirm your product’s NOA status.
It’s the climate acting on a threshold detail that may be inadequate for North Miami’s conditions. Salt-laden moisture from Biscayne Bay and interior canals traps in the paint film, then blisters at the bottom rail where water stands. The fiberglass core is usually sound; the problem is wicking at the slab-to-threshold interface. We diagnose whether the fix is localized repair and better flashing, or whether the opening requires a full-frame replacement with a properly detailed sill pan. Call (786) 706-0468 for a written assessment.
We stop, photograph everything, and show you what we found. In North Miami’s older CBS stock - particularly rental corridors near NE 2nd Avenue - we’ve found jalousie openings that were plywood-boarded after a storm and never permitted. The fix becomes a full Miami-Dade HVHZ permit for a new impact-rated door assembly, not a rehang or insert swap. We document the condition, revise the written quote if the scope changes, and never proceed without your signed approval of the new scope. Call (786) 706-0468 to schedule; estimates are free.
Service Areas Near North Miami
Our North Miami service area covers the full city plus adjacent communities. We run regular Therma-Tru service calls in Therma-Tru service in Golden Glades, where the housing stock and salt exposure mirror North Miami’s conditions. We also work Therma-Tru service in Miami Shores, Pinewood, Ives Estates, and Westview. The same HVHZ rules, the same NOA requirements, the same crew.
Book Your Therma-Tru Service in North Miami Today

Call (786) 706-0468 to schedule your free measured survey. A live person answers, 24/7. You’ll receive a written price before any work starts, a documented photo record when the job is done, and the 365-Day Done Right Promise on every installation. If it’s not done right, we make it right - written into the Haven Standard, not a verbal assurance.
Written by Sonia Raman, Owner at Sightline Windows & Doors North Miami, serving North Miami since 2012.
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.
Other Sightline Windows & Doors North Miami Services
