Top 5 Door Installers
in Ajax
We compared 5 Door Installers serving Ajax, Ontario using publicly available business information, including customer reputation, local presence and documented services. Across the businesses featured here, documented specialties include Replacement windows, Vinyl windows, and Exterior doors.
≈ Ajax’s featured door installers have a FiveBest Score in line with the Ontario benchmark.
Lifestyle Home Products is relevant to Ajax door-installation projects through its documented exterior, entry and patio door offerings. Official materials describe professional installation and publish separate warranty resources for steel and patio doors, giving homeowners product-specific information to review during planning.
Replacement windows · Vinyl windows · Exterior doors
Door Installers is among the supplied categories for this Ajax business, but door installation is not listed among the services documented on the reviewed company website. The official service information focuses on interior renovation work, including kitchens, bathrooms, basements, flooring, painting, plumbing and electrical work.
Residential renovations · Commercial renovations · Home interiors
Detailed FiveBest Research is not yet available for this business.
Detailed FiveBest Research is not yet available for this business.
Detailed FiveBest Research is not yet available for this business.
Ajax door installers are in line with the Ontario benchmark
Featured door installers in Ajax have a median FiveBest Score™ of 75/100, compared with 77/100 for featured door installers across Ontario.
Among nearby FiveBest markets, door installers in Whitby (80/100) and door installers in Oshawa (79/100) score higher, while Pickering (71/100) scores below Ajax.
Comparison based on profiles currently featured by FiveBest in this category with an available FiveBest Score™.
How we researched Door Installers in Ajax
FiveBest reviews publicly available information for Door Installers serving Ajax.
- Google rating and review history
- Documented services
- Years in business when available
- Ajax and surrounding service coverage
- Business website and online presence
- Independent reputation signals when available
Research last updated: September 2026
Typical Door Installation Price Ranges
Price ranges are based on typical industry averages. Actual costs may vary depending on door type, size, material, frame condition, hardware, glass options, labour, disposal, structural adjustments and local market conditions.
- Interior door $250–$800
- Exterior door $900–$3,500+
- Patio door $1,500–$5,000+
- Storm door $400–$1,200
- Hardware & lockset $150–$600
Common Services
- Exterior door installation in Ajax
- Entry door replacement in Ajax
- Patio door installation in Ajax
- Interior door installation in Ajax
- Storm door installation in Ajax
- Front door replacement in Ajax
FiveBest Match™
Coming SoonFiveBest Match™ will soon help you compare businesses based on your specific needs.
FiveBest Match™ — Coming Soon 🔒How to Choose a door installer in Ajax
Compare door installation companies in Ajax for exterior entry doors, patio doors, interior doors, storm doors, replacement doors, frames, hardware, locks and complete installation. FiveBest helps homeowners compare selected local door installers based on relevant services, reputation and local presence.
Compare selected door installers in Ajax for exterior doors, entry doors, patio doors, interior doors, storm doors, replacements, hardware and complete installation.
Review door material, slab or prehung construction, frame, threshold, glass, hardware and weatherstripping.
Ask how the existing frame, rough opening, level, rot and water intrusion will be evaluated.
Confirm removal, disposal, frame work, insulation, flashing, trim, caulking, hardware and finishing.
For exterior doors, compare locking hardware, frame reinforcement, weather sealing and energy performance.
If the opening size or structure changes, ask whether permits, engineering or other approvals may apply.
Compare manufacturer coverage for the door and hardware with the installer’s workmanship warranty.
What Affects Door Installation Costs
- Door type and material
- Door size
- Slab versus prehung unit
- Frame condition
- Glass and sidelights
- Hardware and locks
- Opening modifications
- Interior and exterior trim
- Weatherproofing and finishing
Questions to Ask a Door Installer
- What exact door, frame and hardware are included?
- Will the existing frame be reused or replaced?
- How will the opening be insulated and weather-sealed?
- Are removal, disposal and trim included?
- How will rot or water damage be handled if found?
- Are opening modifications required?
- What manufacturer warranty applies?
- What installation warranty do you provide?
Frequently Asked Questions
Door installation costs in Ajax depend on the door type, dimensions, material, frame condition, hardware, glass options, labour and whether structural or finishing work is required. Exterior and patio doors generally involve more installation work than standard interior doors.
A frame may sometimes be reused when it is square, solid and in good condition. Replacement may be recommended when the frame is damaged, rotted, warped, poorly sealed or incompatible with the new door.
Many door installers replace sliding patio doors and other exterior door systems. Confirm measurements, frame condition, glass specifications, energy efficiency, locking hardware and finishing requirements before installation.
The best choice depends on climate, insulation, maintenance, security, appearance and budget. Steel, fibreglass and wood doors each offer different performance and maintenance characteristics.
Many installers can install handles, deadbolts, hinges, thresholds, weatherstripping and other door hardware as part of the project. Confirm what is included in the quote.
Compare experience with the door type you need, product options, measurements, frame and sealing work, installation details, written estimates, warranties, cleanup and recent local reviews.