Contract Rating

Window & Door Installers in Niagara Region

20 window & door installers serving Niagara Region, ranked by Google rating weighted for review volume. No business can pay to rank higher.

Based in Fort Erie, Lincoln, Niagara Falls, St. Catharines, Thorold, Toronto and 1 other towns, working across the region.

Ratings retrieved from Google just now.

Businesses listed
20
Average rating
4.87
Google reviews behind them
1,971

20 businesses listed

1

Window Repair Guys

Window & Door InstallerSt. Catharines, ON

4.9

671 Google reviews

Phone listedWebsiteHours published
2

Niagara Pre-Hung Doors

Window & Door InstallerThorold, ON

4.8

277 Google reviews

Phone listedWebsiteHours published
3

LM Exteriors

Window & Door InstallerSt. Catharines, ON

4.7

158 Google reviews

Phone listedWebsiteHours published
4

Permanent Siding & Windows

Window & Door InstallerSt. Catharines, ON

4.9

98 Google reviews

Phone listedWebsiteHours published
5

A C Vinyl Windows Ltd

Window & Door InstallerNiagara Falls, ON

4.9

92 Google reviews

Phone listedWebsiteHours published
6

4wards Exteriors | Siding, Eavestrough & Roofing | Windows & Doors

Window & Door InstallerWelland, ON

5.0

82 Google reviews

Phone listedWebsiteHours published
7

Scott Windows & Doors of Niagara

Window & Door InstallerSt. Catharines, ON

5.0

81 Google reviews

Phone listedWebsiteHours published
8

Marks windows and doors

Window & Door InstallerSt. Catharines, ON

4.7

95 Google reviews

Phone listedWebsiteHours published
9

Great Northern Home Exteriors Inc.

Window & Door InstallerSt. Catharines, ON

4.9

64 Google reviews

Phone listedWebsiteHours published
10

Gemini Windows, Doors & Siding

Window & Door InstallerSt. Catharines, ON

4.9

62 Google reviews

Phone listedWebsiteHours published
11

Clera Windows + Doors - Niagara Division

Window & Door InstallerWelland, ON

4.6

65 Google reviews

Phone listedWebsiteHours published
12

BuiLt Windows and Doors

Window & Door InstallerSt. Catharines, ON

5.0

38 Google reviews

Phone listedWebsiteHours published
13

Glaze Windows and Doors Inc.

Window & Door InstallerSt. Catharines, ON

5.0

34 Google reviews

Phone listedWebsiteHours published
14

Windows & Doors Ontario

Window & Door InstallerToronto, ON

5.0

29 Google reviews

Phone listedWebsiteHours published
15

L & L Contracting Inc.

Window & Door InstallerFort Erie, ON

5.0

24 Google reviews

WebsiteHours published
16

Frontier Windows and Doors

Window & Door InstallerSt. Catharines, ON

4.8

25 Google reviews

Phone listedWebsiteHours published
17

Brookstone Windows & Doors

Window & Door InstallerSt. Catharines, ON

4.4

36 Google reviews

Phone listedWebsiteHours published
18

Outlook Windows & Doors

Window & Door InstallerLincoln, ON

4.8

20 Google reviews

Phone listedWebsite
19

Universal Window & Door Solutions Inc.

Window & Door InstallerWelland, ON

5.0

16 Google reviews

Phone listedWebsiteHours published
20

ClearVu Contracting Windows and Doors

Window & Door InstallerNiagara Falls, ON

5.0

4 Google reviews

Hours published

What window and door installation costs in Ontario

Per-window pricing drops as quantity rises, so a whole-house quote is rarely the single-window price multiplied out. Be careful comparing quotes where one is retrofit and the other is full-frame. They are different jobs, and the cheaper one is not necessarily the worse deal, but you should know which you are buying.

JobTypical range
Standard vinyl window, installedRetrofit at the low end, full-frame with capping at the high end.$700 – $1,600
Whole house, roughly 15 windowsVolume pricing usually applies. Confirm whether it is retrofit or full-frame.$12,000 – $25,000
Bay or bow windowNeeds structural support and roof detailing above.$2,500 – $5,500
Entry door, installedFibreglass with sidelights sits at the top of the range.$1,800 – $5,000
Patio slider or French doorsSill preparation matters more than the door on these.$2,000 – $4,500
Basement egress windowIncludes excavation, cutting the foundation, and a window well.$3,500 – $8,000

Planning estimates for Ontario, not quotes. Always get written quotes against the same written specification.

Questions to ask before you hire

  • Is this a retrofit or a full-frame installation? What would the other one cost?
  • How is the gap between the window and the rough opening insulated and air-sealed?
  • Is exterior capping included, and in what colour and material?
  • Is the warranty on the glass seal, the frame, and the labour - and are they different lengths?
  • Is the warranty transferable if I sell the house?
  • Are your installers employees or subcontractors, and are they manufacturer-trained?
  • What is the lead time, and what happens to my deposit if it slips?

Warning signs

  • A very large discount available only if you sign during the in-home visit. This is the most common high-pressure sales pattern in this trade.
  • A quote that names no manufacturer or product line.
  • "Lifetime warranty" with no written definition of whose lifetime, what is covered, and what voids it.
  • A deposit above roughly a third of the job value before materials are ordered.