Free in-home measure and quote - PGT, CGI and CWS impact lines compared on your actual openings, style by style
Fast, Reliable Window Installation Across Lake Mary
Window installation in Lake Mary, FL typically runs $700-$1,850 per opening for a standard impact-rated double-hung, with fixed picture windows starting around $500 and trickier arched or specialty shapes pushing toward $2,400+. Most Lake Mary homes we work on were built between 1988 and 2005, so the original builder-grade aluminum frames are hitting 25-35 years old and failing in batches, not one at a time. If you’re in Timacuan, Heathrow, or Chase Groves and your windows are fogging, binding, or leaking at the sill, call (954) 280-4413. We’ll get a real person on the line, and a uniformed technician out to measure every opening twice before we quote a thing.
Why TruePane Windows & Doors Is Lake Mary’s Preferred Window Installation Company
We’ve spent years working through Seminole County’s permit office and a long list of Lake Mary HOA Architectural Review Committees, so the process that slows everyone else down is something we already know how to schedule around. Homeowners in Heathrow don’t call us expecting a one-day quote-and-install magic trick. They call because they’ve heard from a neighbor that we file the submittal packet correctly the first time, with the frame widths, muntin profiles, and glass tint samples the committee is going to ask for anyway.
Dale Kessler founded TruePane in 2008 on a straightforward rule: if the pane is not true, the job is not done. That’s the standard on every Lake Mary install, and it’s why our workmanship is covered by the Done Right Promise. Both manufacturer warranty layers get registered in writing before our truck leaves your driveway. No paperwork fights, no arguing about what “lifetime” means. We put the durations in writing, and we stand behind it.
When you call (954) 280-4413, a live person answers. Not a voicemail tree, not a regional call center. Our teams serving Lake Mary are background-checked and uniformed, because we work in your home the way we’d work in our own mother’s house. That’s the kind of company that still plans to be answering the phone when your new windows are twenty years old.
Our Window Installation Services in Lake Mary
Most Lake Mary homes we replace windows in fall under Seminole County wind-borne debris requirements, so every opening needs impact-rated glazing or approved storm protection. Here’s how the most common window types play out in this market.
Casement Windows
Casement windows in Lake Mary run roughly $900-$1,900 per opening, depending on size and whether you need a custom match to an early-1990s builder profile. These are a favorite replacement for original aluminum sliders because the crank-out seal holds far better against Central Florida’s afternoon thunderstorms. One thing to know: Lake Mary architectural review committees will flag a casement that doesn’t match the original paint finish or frame depth, so we include those details in the submittal packet before we order a single unit.

Awning Windows
Awning windows in Lake Mary run around $700-$1,400 per opening. They’re common over kitchen sinks and above picture windows in the stucco-and-tile homes built here in the early ’90s. If you’re replacing an awning window in a Heathrow or Timacuan home, the ARC will want to see the muntin grid pattern on paper before they sign off. We handle that as part of our standard Window Installation process, so you’re not left translating committee notes on your own.

Fixed & Picture Windows
Fixed and picture windows in Lake Mary typically run $500-$1,500 for standard rectangles and quite a bit more for arched, palladian, or eyebrow shapes. Lake Mary’s early-1990s luxury builds are loaded with architectural windows that were a standard builder feature back then. Now they’re the most difficult openings to replace, because every arch has to be templated for a custom insulated glass unit before fabrication even begins. That’s the reality of owning an older Heathrow or Timacuan home, and it’s why we measure twice and quote manufacturer lines side by side on paper.

Single & Double Hung
Single and double hung windows in Lake Mary run about $700-$1,500 per opening for impact-rated units. The old aluminum single-pane double-hungs that came with 1988-2005 construction have two problems working against them: the aluminum itself corrodes at the sill in our humidity, and the glass performs far below current Florida Energy Code minimums. When we replace them, the new jamb extensions sometimes have to be fully bucked in because the original frames have rotted or corroded so badly there’s nothing sound to seal against. We price that work honestly, and the written quote you get is the price you pay.

What happens when you call
- 1
A real person answersNo phone trees - you reach a local pro.
- 2
You get an upfront price rangeHonest numbers before anyone is dispatched.
- 3
A background-checked tech heads outLicensed & insured, dispatched right away.
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You approve before work beginsNothing starts until you say go.
Trusted Brands We Service in Lake Mary
We’re an authorized installer for more than a dozen manufacturer lines, and the ones that come up most often in Lake Mary are PGT, CGI, and Ply Gem. Each has strengths: PGT’s WinGuard line is a workhorse for impact-rated casements and single-hungs, CGI makes heavy-duty fixed picture units that stand up to the UV load we get around here, and Ply Gem offers solid mid-range double-hungs when the HOA allows a vinyl frame. We quote these side by side on paper so you can see exactly what you’re buying, with both warranty layers registered in writing before we leave the driveway. No mystery about what the manufacturer covers and what we cover.
Common Window Installation Problems We See in Lake Mary Homes
- ARC rejection stalls the entire job. The review committee flags the replacement spec because the flange color, muntin grid, or frame depth deviates from the original builder-grade look. We’ve watched homeowners sit for months waiting on a re-submittal because their first contractor didn’t include product cut sheets and tint samples. Our submittal packet includes all of it before the first board meeting.
- Custom arches leave openings tarped during rainy season. Those eyebrow and palladian transoms from the early ’90s can’t be popped out and replaced with a stock unit. They take four to six weeks minimum for impact-rated fabrication. If the order isn’t sequenced around the committee calendar, you’re looking at a gaping hole in a two-story great room through June’s afternoon storms. We sequence the easy work first and set the custom IGUs the same day approval clears.
- Corroded sills don’t seal against new jamb extensions. Builder-grade aluminum frames from 1990-era Timacuan homes have often corroded so badly at the sill that the new jamb extensions won’t seat properly. The full buck replacement and flashing tape retrofit this requires is sometimes not covered by the original pre-approval. When we find that condition, we photograph it, document it, and put it in writing for the homeowner and the committee before we proceed.
- ARC demands an exact match to the old low-E coating. A homeowner orders a high-SHGC impact-rated double-hung thinking they’ll capture more solar gain, and the committee rejects it because the original low-E coating looked different. Now there’s a reorder and a second submittal. We match the original glass spec on the first order, because we’ve been through this enough times to know exactly what the Lake Mary committees check.
Pricing for Window Installation in Lake Mary, FL
Here’s what you can expect to pay in Lake Mary’s market, per opening, including impact-rated glass and standard installation. These are honest ranges from work we’ve actually quoted and installed in this area.
| Window Type | Lake Mary Price Range (per opening) |
|---|---|
| Fixed / Picture (standard rectangle) | $500 - $1,500 |
| Single / Double Hung | $700 - $1,500 |
| Casement | $900 - $1,900 |
| Awning | $700 - $1,400 |
| Arched / Palladian / Eyebrow (custom IGU) | $1,800 - $2,400+ |
What moves the price is the opening itself: the size, the shape, whether the existing jamb and sill are sound or need full buck replacement, and what the HOA Architectural Review Committee will approve. We’ve had Heathrow jobs where the cheapest bid was $2,900 for a single arched transom that another company templated after the permit was pulled. Ours was higher, but the submittal packet matched the original builder palette and the opening was never tarped over a committee calendar. Call (954) 280-4413 for a free, written, line-item estimate on your Lake Mary openings. You’ll get a fixed price, not a guess.
If your job is part of a whole-home replacement, we also offer a permanent 5% discount for seniors and veterans. And if you only need one or two windows looked at, ask about the maintenance check to see what’s salvageable and what’s not.
We Also Serve Cities Near Lake Mary
Our window installation teams cover the full Seminole County corridor, including Longwood, Sanford, Altamonte Springs, and Winter Springs. If your home is just over the line from Lake Mary, the same crew and the same Keystone Standard apply. Call (954) 280-4413 and we’ll schedule a measurement at your house, wherever you are in the north Orlando metro.
Serving Lake Mary, FL - Our Local Coverage Area
We’re based in the Lake Mary 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 - Window Installation in Lake Mary
Yes, you need both. Seminole County issues the building permit, but Heathrow and most other Lake Mary master-planned communities have an Architectural Review Committee that reviews window replacements separately. The two processes run on different calendars, and the county permit does not override the HOA. We file both together, coordinated so neither one idles while the other is under review. Call (954) 280-4413 and we’ll handle the packet for you.
Arched and eyebrow transoms in Lake Mary take four to six weeks longer because they require templated custom insulated glass units, not stock panes. Fabrication for impact-rated custom IGUs doesn’t begin until the template is approved, and if the Architectural Review Committee meets monthly and flags something, that’s another full cycle. We sequence the job so the standard openings go in first and the custom arches are set the day approval clears. No tarped openings waiting on a committee.
Lake Mary ARC committees check frame width, muntin grid profile, glass tint, and sometimes paint color against the original builder-grade look from the late ’80s through early 2000s. That’s why our submittal packets include product cut sheets plus frame depth and glass samples that match the original palette. We’ve seen approvals sail through when the packet was complete and stall for months when it wasn’t. Call (954) 280-4413 before you order, and we’ll tell you what your specific committee will look for.
Some Lake Mary ARC committees will approve vinyl frames, and some will not. Communities that date to the early 1990s luxury builds, like Heathrow and parts of Timacuan, often hold the line that replacements must match the original aluminum or wood-clad look, which rules out most vinyl. We’ll pull your HOA’s architectural guidelines before we quote, and present you with manufacturer lines that fit both the committee’s requirements and your budget. A square deal means knowing what you can actually install before you pay for a window.
You risk the committee demanding removal at your expense, especially if an inspection photo shows up in the community newsletter or a neighbor complains. We’ve seen it happen. The county permit won’t protect you, and the manufacturer warranty won’t cover reinstallation after a removal. We file the ARC submittal before any glass is ordered, every time, so you never have to explain yourself to a committee retroactively. Call (954) 280-4413 and we’ll get your packet started.
If you’re replacing windows in Lake Mary, you’re dealing with two sets of rules: Seminole County’s building code and your HOA’s architectural standards. TruePane Windows & Doors has been navigating both for years. We measure twice, quote manufacturer lines side by side on paper, register both warranty layers before we leave the driveway, and back it all with the Done Right Promise. Call (954) 280-4413 to schedule your free estimate. A live person will answer.
Written by Dale Kessler, Owner at TruePane Windows & Doors, serving Lake Mary and surrounding Seminole County communities.
Six Reasons Homeowners Choose TruePane Windows & Doors
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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