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 comes down to two things: working with a housing stock that was built almost entirely between 1988 and 2010, and navigating HOA rules that most other Central Florida cities simply don’t have. We know both. TruePane has installed, replaced, and serviced windows across Lake Mary for years, and our crews understand concrete block stucco construction, builder-grade aluminum frames, and the architectural review process in communities like Heathrow and Magnolia Plantation. Call (754) 238-2201 and a live person answers, any hour, any day.
Why TruePane Windows & Doors Is Lake Mary’s Preferred Window Installation Company
Homeowners in Lake Mary call us for one reason more than any other: we do not skip the HOA step. In Heathrow, Timacuan, and Magnolia Plantation, an architectural review committee has to approve window replacements before a permit gets pulled. We’ve seen too many homeowners order product first, wait for approval, and eat restock fees when the ACC says no. Our crews pull the ACC guidelines before quoting, so the frame color, material, and profile are locked to what the board will accept the first time. That alone saves weeks and thousands of dollars.
We’re not a franchise. Dale Kessler founded TruePane in 2008 after watching out-of-true installs and voided warranties become the normal way window work got done. The standard he set hasn’t moved: both manufacturer warranty layers get registered in writing, durations stated, before our truck leaves your driveway. That’s The Keystone Standard, and it applies to every window we set in Lake Mary.
We’re reachable at (754) 238-2201 around the clock. No voicemail tree, no callback form. When a Lake Mary homeowner calls with a fogged seal or a sash that won’t open, they get a person who can schedule a real appointment. Our technicians are background-checked, uniformed, and trained to work in your home the way they’d work in their own mother’s.
Our Window Installation Services in Lake Mary
Most Lake Mary homes were built with the same builder-grade windows in the same concrete block openings. Replacement looks different depending on the room, the HOA, and how the original frame has held up under 30 years of Florida sun. Here’s what we handle most often.
Casement Windows
Casement windows are a common upgrade in Lake Mary because they seal tighter than sliders or double-hungs, which matters when summer humidity runs through an old frame. In Heathrow and similar communities, the ACC often approves casement replacements as long as the exterior color matches the original builder spec. We quote manufacturer lines side by side on paper so you see exactly what the window costs, what the warranty covers, and how long it lasts.

Single & Double Hung Windows
Original aluminum double-hungs in 1990s Lake Mary homes tend to seize in their jambs as the frames oxidize. We measure every opening twice before ordering, and we set the new window plumb, level, and square against the stucco returns. When your Lake Mary home has wide exterior returns, which most of them do, the flashing detail is what keeps water out of the wall cavity. We don’t rush that step.

Fixed & Picture Windows
Two-story executive homes in Lake Mary often have large fixed picture windows over living rooms or stairwells. Those carry a lot of glass area, and inland Florida wind loads still apply. We walk you through wind-compliant glazing options and recommend impact-rated glass where the exposure and the HOA both allow. The quote shows both options in writing.

Impact-Rated Glazing
Lake Mary sits outside the coastal High-Velocity Hurricane Zone, but the I-4 corridor gets serious thunderstorm wind events. A wind-compliant or impact-rated window is a standard part of nearly every replacement conversation we have here. HOA architectural boards in Lake Mary frequently prefer impact-rated product because it keeps the original sightline while meeting the stricter wind-load requirements. We’re an authorized installer for PGT, CGI, and CWS, so local supply is not a hold-up.

What happens when you call
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A real person answersNo phone trees - you reach a local pro.
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You get an upfront price rangeHonest numbers before anyone is dispatched.
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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 install and service windows from more than a dozen manufacturer lines, including Andersen, Pella, Marvin, and Milgard. For Lake Mary’s impact-rated and wind-compliant needs, we work heavily with PGT, CGI, and CWS because their product lines match what HOA boards in this market expect and approve. Local supply means we can quote accurately and order without long delays. You get side-by-side manufacturer quotes on paper, with both warranty layers registered in writing before the truck leaves the driveway.
Common Window Installation Problems We See in Lake Mary Homes
- Rotted wood bucks behind stucco returns. Concrete block homes built from the late 1980s through 2000s often used wood bucks around window openings. Thirty years of humidity and failed flashing rots the wood, and you won’t know until the old window comes out. We write this into the contract as an allowance, and any change order gets priced and approved in writing before we touch it.
- HOA ACC approval skipped or delayed. In Heathrow, Magnolia Plantation, and Timacuan, window replacement needs written architectural review committee approval before permit. Contractors who order product first get hit with restock fees or lose the job. We pull the ACC guidelines before we quote, period.
- Oxidized aluminum frames and failed seals. Builder-grade aluminum from the 1990s oxidizes under Lake Mary’s UV load. Sashes sag, locks stop aligning, and insulated glass units fog between the panes. The fix is a full frame replacement, not a glass swap, and the HOA usually wants the same exterior color profile.
- Moisture intrusion hidden until tear-out. Stucco returns hide failed flashing and rotted framing until the old window is removed. When this happens on a Lake Mary job, we photograph the damage, write a change order with a fixed price, and get your written approval before proceeding. No surprise line items, no change order surprises dropped on the final bill.
Pricing for Window Installation in Lake Mary, FL
A standard single-family window replacement in Lake Mary typically runs $650 to $1,200 per window installed, depending on size, frame material, and whether impact-rated glass is required. A wood or composite casement in a larger fixed opening runs higher, often $1,200 to $2,000 installed. Full-frame replacement on concrete block stucco homes costs more than insert replacement because the stucco returns have to be cut back, flashed, and resealed. HOA-approved jobs with specific color-match requirements may add $75 to $150 per opening for custom finishes. Most Lake Mary jobs we quote land between $8,000 and $18,000 for a whole-home replacement. Call (754) 238-2201 for an exact line-item quote. Estimates are free, and seniors and veterans get a standing 5% discount.
We Also Serve Cities Near Lake Mary
We run crews into Longwood, Sanford, Altamonte Springs, and Winter Springs every week. If you’re outside Lake Mary proper, you still get the same Window Installation process, the same HOA documentation support, and the same warranty registration. Read more about our full service area on the Lake Mary page.
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, in virtually every gated Lake Mary community you need written architectural review committee approval before a permit can be pulled. We start every Heathrow, Magnolia Plantation, and Timacuan job by pulling the ACC guidelines and matching the replacement window to the board’s approved frame material, color, and profile, so your product order doesn’t get restock-fee-slammed. Call (754) 238-2201 and we’ll walk you through the approval step first.
We cut back the stucco returns carefully, inspect the wood bucks, and replace any rotted framing with pressure-treated stock before the new window goes in. Then we flash the opening with full tape and sealant before reinstalling the window and patching the stucco. On a two-story CBS home in Heathrow, our crew found the original bronze anodized aluminum double-hungs had seized in their jambs and the wood bucks behind the stucco needed full replacement. We wrote the change order for new pressure-treated bucks and flashing tape before proceeding, and the HOA’s third-party inspector signed off the same day. Call (754) 238-2201 for a free estimate on your Lake Mary home.
Lake Mary is outside Miami-Dade and Broward’s High-Velocity Hurricane Zone, but Florida Building Code wind-load requirements still apply to Seminole County, and the I-4 corridor sees severe inland thunderstorm winds. We quote wind-compliant or impact-rated glazing as standard on nearly every replacement, and we check the specific exposure rating for your home’s lot before recommending a product. Call (754) 238-2201 and we’ll explain exactly what your opening requires.
Seal failure inside the insulated glass unit. Builder-grade aluminum frames from the late 1990s and early 2000s oxidize under Lake Mary’s UV load, which stresses the glass seals and lets humidity in between the panes. The fogged glass cannot be cleaned off; the sealed unit has to be replaced, and in many Lake Mary homes the frame has degraded enough that a full window replacement makes more sense than a glass swap. Call (754) 238-2201 and we’ll tell you honestly which one your window needs.
It depends on the community’s architectural guidelines. Some Heathrow and Magnolia Plantation ACC boards lock replacements to the original builder-specified frame color, commonly bronze anodized aluminum or a specific off-white vinyl. Other boards allow vinyl casements as long as the exterior color matches and the profile is consistent. We pull the ACC guidelines before quoting and show you which options will pass. Call (754) 238-2201 for a free estimate.
If you live in Lake Mary and your windows are 20 to 35 years old, they’re failing, even if they still open. Don’t wait for the next thunderstorm or the next HOA letter. Call TruePane Windows & Doors at (754) 238-2201 and schedule a free estimate. We’ll measure, quote manufacturer lines side by side on paper, register both warranty layers in writing, and stand behind the work with the Done Right Promise. If the pane is not true, the job is not done.
Written by Dale Kessler, Owner at TruePane Windows & Doors, serving Lake Mary since founding the company in 2008.
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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