Free in-home measure and quote - PGT, CGI and CWS impact lines compared on your actual openings, style by style
Windows & Doors Services in Lake Mary, FL
Lake Mary homeowners call us for window and door work because they want a straight answer and a square deal. We answer the phone when you call, we show up on time, and we bring background-checked, uniformed technicians who measure every opening twice. If you’re dealing with a fogged pane, a sagging slider, or a door that binds in the humidity, call (754) 238-2201 and talk to a person.
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.
- 4
You approve before work beginsNothing starts until you say go.
Why Lake Mary Homeowners Choose TruePane Windows & Doors
Second-generation glazier Dale Kessler founded this company in 2008 on a rule that still governs every install: if the pane is not true, the job is not done. That means we do not walk away from an out-of-square opening, a flashing detail that isn’t right, or a warranty that isn’t registered in writing. That kind of craft commitment matters to people in Heathrow and Magnolia Plantation, where we’ve completed hundreds of window and door jobs and left work that still operates cleanly years later.
Homeowners tell us they call TruePane because someone answered the phone at 7 a.m. or 9 p.m., because the technician drove an unmarked truck from the brand’s Miami-area hub to Lake Mary and still arrived when promised, and because the estimate quoted manufacturer lines side by side on paper so they could compare Andersen against ES Windows and ECO Window Systems with actual prices. We work like a company that plans to be in town in thirty years, because we do.
Windows & Doors Services We Offer in Lake Mary
Window Installation
We set new-construction and retrofit windows in Lake Mary’s concrete block stucco homes, where flashing and sealant work behind the stucco returns is the difference between a dry wall and a moisture problem down the road. Every opening gets measured twice before the frame is ordered.
Learn more about Window Installation in Lake Mary.

Door Installation
Entry doors, patio doors, and hinged French doors need to be hung square and sealed against Seminole County’s summer thunderstorm rain. Our technicians level, shim, and flash every door the way the manufacturer intended, then register the warranty before the truck leaves the driveway.
Learn more about Door Installation in Lake Mary.

Window Replacement
Many Lake Mary homes still carry original builder-grade aluminum or early vinyl windows that have failed after two or three decades of Florida UV and humidity. We replace them with wind-compliant, energy-rated units that fit the existing openings and the HOA’s architectural requirements.
Learn more about Window Replacement in Lake Mary.

Impact Windows & Doors
Lake Mary sits inland, outside the coastal high-velocity hurricane zone, but the I-4 corridor still gets severe thunderstorm wind events every season. Impact-rated windows and doors harden a home against wind and debris while cutting outside noise from State Road 434 and I-4 traffic.

Energy-Efficient Windows
Central Florida’s UV load punishes window seals and frame materials. Energy-efficient windows with low-E coatings and insulated glass units keep Lake Mary cooling bills lower and protect interiors from the sun that oxidizes aluminum frames and fades drapery within a few years.

Sliding & Patio Doors
Sliders in Lake Mary’s executive-style homes take a beating from daily use and humidity-driven swelling. We replace rollers, tracks, and full frames where needed, and we install new sliders that glide without binding, even in July.

Glass Railing Systems
Custom glass railing systems for pools, balconies, and stairways add an open sightline without compromising strength. We install tempered, code-compliant panels with stainless or aluminum fittings sized to your exact dimensions.

Custom Windows & Doors
When a standard size will not fit an arch, a transom, or an unusual opening in an older Lake Mary custom build, we spec and order fully custom units from manufacturers including ES Windows. We measure the opening ourselves, and we stand behind the fit.

Neighborhoods We Serve in Lake Mary
We do work across Lake Mary, from the gated golf communities off Lake Mary Boulevard to the established neighborhoods near Timacuan and the newer subdivisions along Rinehart Road. Our typical response to Lake Mary is reliable and predictable, and we schedule arrival times that we actually keep.
- Heathrow
- Magnolia Plantation
- Timacuan
- Lake Mary Woods
- The Crossings
Why Lake Mary’s Climate & Housing Affect Windows & Doors
Lake Mary was built almost entirely as a planned corporate suburb between roughly 1988 and 2010, which means the dominant housing stock is packed with original builder-grade aluminum-frame or early vinyl windows now 20 to 35 years old and failing under Central Florida’s UV load and humidity. Those windows are the source of most of our service calls in this city: failed insulated glass seals, oxidized frames that no longer close tight, and tracks that bind from heat expansion.
Compounding this, most Lake Mary homes are concrete block stucco construction with wide stucco returns around window and door openings. That detail demands careful flashing and sealant work during frame replacement to prevent moisture intrusion behind the cladding, a known failure point in this construction type. And because the city’s gated communities like Heathrow and Timacuan are HOA-governed, virtually every replacement job requires written architectural review board approval before a permit can be pulled. In Heathrow, architectural control committees often lock replacement windows to the original builder-specified frame color, commonly bronze anodized aluminum or a specific off-white vinyl. Contractors who order product before getting that written ACC approval routinely eat restock fees or lose the job entirely. We treat the HOA approval letter as step one, before design selection, before permit, before anything.
Pricing for Windows & Doors in Lake Mary
No two Lake Mary jobs price the same, because no two openings, HOA requirements, or manufacturer choices match up. What we give every client is a written, line-item quote with no surprise line items on the bill, no change orders unless the scope genuinely changes, and no fine print that covers neither labor nor the glass. Our standing offers include a free written repair estimate, an maintenance check, and a permanent 5% discount for seniors and veterans.
Replacement windows in Lake Mary typically fall into three cohorts: retrofit vinyl or aluminum windows, mid-range energy-efficient units, and impact-rated or high-end custom units where the frame, glass, and finish all get specified to the home’s condition. Entry doors range from basic steel or fiberglass replacements to full-frame custom doors with sidelites. For anywhere from a few hundred dollars on a service call to full replacement jobs that we quote manufacturer line by manufacturer line, you will know the price before you sign anything. Call (754) 238-2201 for an exact number.
Service Area - Cities Near Lake Mary
TruePane serves homeowners throughout Seminole County and the surrounding area. If you are in Longwood, Sanford, Altamonte Springs, or Winter Springs, the same live-person phone line, the same written warranties, and the same crews that work in Lake Mary are available to you.
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 About Windows & Doors in Lake Mary
Window replacement in Lake Mary starts around $600 to $900 per opening for standard retrofit vinyl or aluminum, and climbs from there for energy-efficient, impact-rated, or custom units depending on size, glass package, and HOA-required finishes. The best way to get a real number is a free estimate that puts two or three manufacturer lines side by side in writing, which we do on paper, not as a verbal ballpark. Call (754) 238-2201 and we will set it up.
Yes, in Lake Mary’s gated communities like Heathrow, Magnolia Plantation, and Timacuan, nearly all exterior window and door changes require written approval from your community’s architectural review committee before any permit can be pulled. We handle the ACC submission paperwork as part of the job and treat the written approval as the first step, before ordering glass or scheduling installation.
The Done Right Promise is TruePane’s written guarantee: if the work is not done right, we make it right, with no paperwork fights and no arguing. Every job also carries The Keystone Standard, which means both manufacturer warranty layers are registered in writing and the durations are stated before the truck leaves the driveway.
Yes, fogged insulated glass units, failed seals, oxidized aluminum frames, and doors that bind from humidity or settlement are among the most common calls we take in Lake Mary. Some repairs are same-day, some require ordering a new insulated glass unit for a specific opening, but either way we diagnose the problem before recommending a repair or replacement, and we honor a free written repair estimate.
Yes, we pull every permit required by the City of Lake Mary and Seminole County for window and door replacement, installation, and structural glass work, and we handle the inspections that follow. Permits are a line item on the written estimate, never something we skip or add on after the fact. Call (754) 238-2201 for a free estimate and a written answer to every one of these questions.
Contact TruePane Windows & Doors in Lake Mary
If you live in Lake Mary and your windows are fogged, your slider fights you, or your door does not close square anymore, call (754) 238-2201. A live person answers 24 hours a day, 7 days a week. We will schedule a free estimate, measure every opening twice, and put the price in writing before you decide anything. Dale Kessler’s rule still governs every job we do: if the pane is not true, the job is not done. We stand behind it, in writing, and we will be there when we say.
Written by Dale Kessler, Owner at TruePane Windows & Doors, serving Lake Mary, FL.
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.
Other TruePane Windows & Doors Services
What Neighbors Say About TruePane Windows & Doors
What happens when you call
- 1A real person answersNo phone trees - talk to a local windows & doors pro.
- 2You get an upfront price rangeHonest numbers before anyone is dispatched. No surprises.
- 3We come out and measureLicensed & insured, at a time that suits you - the visit and the quote are both free.
- 4You get the price in writingLine-itemed, yours to keep, and nothing starts until you say go.
What Lake Mary Customers Say
"Eleven windows replaced in two days. The crew chief, Marcus, showed me the level on every single frame before they caulked it. My wife noticed the street noise was gone before I did."
- Ronald P."Whole-house window replacement at 71 years old is not something you want to do twice. Dale walked the house himself for the quote. Crew was the same three men all four days, and the foreman knew every window by room."
- Pat and Ray L."Our bay window had rotted at the sill and two other outfits wanted to talk us into a flat picture window instead. TruePane rebuilt the opening and matched the original look. Neighbors have knocked on the door about it."
- Gene A.



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