Ridgestone Exteriors

Window & Door Installation in St. Thomas, Ontario

Homes we work on in St. Thomas

St. Thomas has a mix of older heritage homes and newer subdivisions. We install in both.

Heritage homes (1880s–1920s)

Courthouse District, Rosebery Place, Gladstone Street, Wellington Street

Older brick and frame homes around the Courthouse District. The condition of existing replacement windows varies by property. Sash-pack replacement preserves the brick course where possible; brick-to-brick when the casing has gone.

Newer south-end subdivisions (2000s–present)

Miller's Pond, Eagle Ridge, Shaw Valley, Harvest Run, Orchard Park South

Modern Energy Star–spec single-family builds. Remaining warranty coverage depends on the original product and its terms. Selective upgrades, glass-pack swaps, and storm-damage replacements are the typical asks.

North-end and corridor to London

Lynhurst Heights, Talbotville Meadows

Newer subdivisions north of the city, mostly post-2015 builds. We cover this corridor as part of our regular service area.

Neighbourhoods we serve in St. Thomas

From the heritage Courthouse District south to the newer subdivisions, and north to the corridor heading into London.

Heritage core

  • Courthouse District
  • Rosebery Place
  • Gladstone Street
  • Wellington Street
  • Downtown core

Newer subdivisions (south & east)

  • Orchard Park South
  • Harvest Run
  • Miller's Pond
  • Shaw Valley
  • Eagle Ridge

North end / corridor to London

  • Lynhurst Heights
  • Lynhurst
  • Talbotville Meadows

What we install for St. Thomas homeowners

Replacement Windows

Vinyl, fibreglass, and aluminum frames. Heritage-appropriate grille and muntin profiles for the older homes around the Courthouse District; modern frames sized for the newer subdivisions. Glass packages and frame construction are confirmed for the selected window.

Exterior Doors

Entry doors (fibreglass and steel) and patio doors (sliding and swing). Multipoint locks, standard hardware tiers, colour-wrap finish options for matching new windows to existing trim.

Siding, Soffit & Fascia

Vinyl, polymer, fibre cement (Hardie), and engineered wood (LP) siding. Aluminum trim and coil work. Often combined with a windows or doors project for a coordinated exterior refresh.

Why work with us in St. Thomas

St. Thomas is in our regular service area

We measure on-site, quote in writing, and schedule install around your project — same as we would for any in-area job.

Local supplier, local install

Our main window line, VDK, is built in Norwich, Ontario, and the Northstar windows we install are made right here in St. Thomas. Lead times and warranty terms depend on the selected products and are confirmed for your project.

One point of contact

Marko reviews your project details and discusses the options with you before the final scope is confirmed.

Fully insured + WSIB

Liability insurance and WSIB documentation provided on request before any work starts.

How your project starts

Four steps, start to finish.

  1. 1

    Start online

    Send photos and rough dimensions of your windows or doors. If you need help choosing, we discuss the options before preparing your estimate.

  2. 2

    Review your estimate

    Compare the proposed scope and preliminary numbers by email, phone or video. We can discuss budget options and phases for the project.

  3. 3

    Confirm on site

    If you want to proceed, we verify measurements and installation conditions on site, then provide the final quote for approval before ordering.

  4. 4

    Installation and review

    We schedule the agreed work and review the installation with you. Your proposal sets out the workmanship coverage; manufacturer warranties are separate.

Siding starts with a 15-minute consult. Explore ideas with your own scan and any available measurement report, or discuss the proposed assisted visit. We prepare up to three preliminary estimate options. If the budget fits, we review samples and technical details on site before the final quote.

Manufacturers we install

Compare available products for your home and budget. We confirm the selected manufacturer and specifications in your proposal.

  • VDK Windows & Doors
  • Novatech Doors
  • Westlake Royal Building Products
  • Northstar Windows & Doors

Common questions from St. Thomas homeowners

Window or door project in St. Thomas?

Start with photos and rough dimensions. Review your online estimate before the on-site technical check and final quote.

Tell us about your St. Thomas project

Have a question or need help getting started? Tell us about your project and we’ll discuss the next steps.

Best way to reach you:

Messaging frequency may vary. Message and data rates may apply. You can opt out any time by texting STOP. For assistance, text HELP or visit our website at https://ridgestoneexteriors.ca. Visit https://ridgestoneexteriors.ca/privacy-policy for privacy policy and https://ridgestoneexteriors.ca/terms-of-service for Terms of Service.

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