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Seminole County · Door installation

Door installation in Lake Mary & Heathrow

Lake Mary's golf and lake communities were largely built from the 1980s through the 2000s — which means a lot of double entry doors, arched transoms and big lanai sliders reaching the end of their lives. We replace them with matched, rated systems and handle the HOA paperwork.

  • Serving all of Lake Mary
  • Local permits handled
  • Impact-rated options
  • Free written estimates

Free door estimate in Lake Mary

Tell us about your doors — we'll set up a free in-home measurement.

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We reply within one business day — usually sooner. By submitting, you agree that Threshold Door Co. may contact you about your project by phone, text or email. We never sell your information. See our Privacy Policy.

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  • Locally owned & operated
  • Licensed & insured
  • Permits & inspections handled
  • Written workmanship warranty
  • Free written estimates

Homes in Lake Mary

Established, upscale neighborhoods

From Timacuan's golf neighborhoods to the gated streets of Heathrow, Lake Mary homes tend to be larger, two-story houses with formal entries, transoms and sidelites, and multi-panel sliders to screened pools. Many still have their original doors — now faded, drafty and short of today's design-pressure ratings.

Lake Mary homeowners often replace the front entry and lanai doors together so the glass, finish and hardware match. We can phase the rest — the garage door and secondary doors — on your schedule.

Neighborhoods & communities we serve

  • Heathrow
  • Timacuan
  • Historic downtown Lake Mary
  • Crystal Lake area
  • Rinehart Road corridor

ZIP codes: 32746

Popular in Lake Mary

Door projects we see most

Local know-how

What to consider for doors in Lake Mary

01

HOA approval is the norm

Most Lake Mary communities have architectural review for exterior doors and colors. We prepare specifications, samples and photos for your application.

02

The 1990s double-door entry

Arched transoms, decorative glass and double doors are everywhere here — and the fixed leaf's bolts are a common weak point. New systems fix it.

03

Heathrow is unincorporated

Heathrow and some other Lake Mary-address neighborhoods sit outside city limits, so permits go through Seminole County instead of the City of Lake Mary.

Permits in Lake Mary. Homes inside Lake Mary city limits are permitted by the City of Lake Mary. Heathrow and other unincorporated areas with a Lake Mary address are permitted by Seminole County.

We prepare the application, include the Florida Product Approval documents, and schedule the inspection. How product approvals work.

How it works

Your Lake Mary door project, step by step

  1. Call, text or request an estimate

    Tell us which doors you are thinking about. We will set a time that suits you, including evenings and Saturdays.

  2. In-home measure & options

    We measure every opening, check the framing and sill, and walk you through materials, glass and hardware.

  3. Written, itemized quote

    Product, size, glass, hardware, permit, removal, trim and finish work — all spelled out before you decide.

  4. Order, permit & schedule

    We order your doors, pull the permit and schedule installation as soon as your doors arrive.

  5. Professional installation

    Old door out, opening prepped and flashed, new door set plumb, level and square, then sealed and trimmed.

  6. Inspection & walkthrough

    We meet the inspector when required, adjust hardware, and walk you through operation and care.

Reviews

What homeowners say

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Sample review
“Replace this with a real customer review. Aim for specifics: what was installed, how the crew treated the home, and how the finished door works.”
Sample review Winter Park · Impact French doors
Sample review
“Reviews that mention the town and the door type help local visitors — and search engines — understand exactly what this company does and where.”
Sample review Lake Mary · Fiberglass entry door with sidelites
Sample review
“Keep three to six of the strongest reviews here. Link the rest through the Google profile set in src/config/site.ts.”
Sample review Kissimmee · Sliding glass door replacement

Questions

Door installation in Lake Mary: FAQ

Is Heathrow part of the City of Lake Mary?

No. Heathrow is an unincorporated community in Seminole County, so building permits for door replacement are issued by the county.

Are estimates free in Lake Mary?

Yes. In-home estimates in Lake Mary are free, with no trip charge and no obligation. You'll get a written, itemized quote.

Do you install impact-rated doors in Lake Mary?

Yes — impact-rated entry, sliding, French, multi-slide and garage doors. We'll confirm whether your Lake Mary address requires impact protection or only a design-pressure rating before we quote.

Ready for new doors in Lake Mary?

Tell us which doors you want to change. We'll measure, walk you through options and leave a written quote — free, with no pressure. We reply within one business day — usually sooner.

Military, first-responder & senior discounts available.

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