Top 5 General Contractors
in Markham
We compared 5 General Contractors serving Markham, Ontario using publicly available business information, including customer reputation, local presence and documented services. Across the businesses featured here, documented specialties include Kitchen renovations, Bathroom renovations, and General contracting coordination.
↗ Markham’s featured general contractors have a FiveBest Score above the Ontario benchmark.
For general contracting in Markham, MS7 Construction Inc provides project coordination for bathroom and basement remodelling, drywall work and interior finishing. Its documented services support renovation projects requiring coordinated interior construction work.
General contracting coordination · Bathroom remodelling · Basement remodelling
P&O General Construction Inc is a Markham general contractor offering residential and commercial renovation work across the GTA, including whole-house, kitchen, bathroom and stair renovations, plus wall removal and additions. Its published process includes detailed quotations, finish-list scheduling and on-site project management during execution.
Whole-house renovations · Kitchen renovations · Bathroom renovations
From its Markham showroom, Reno Compass offers a one-stop design-build renovation service spanning interior renovations, kitchens, bathrooms, basements, home additions and building permits. Its documented Markham work includes full-home layout transformations, making it relevant for coordinated residential projects involving multiple rooms, finishes and construction stages.
Interior renovations · Kitchen renovations · Bathroom renovations
GMC Construction Inc. manages kitchen, bathroom, basement, whole-home renovation and home-addition projects in Markham. Its official Markham service page describes structure-first planning for load-bearing changes; the company is led by an owner with a Master’s degree in Structural Engineering and offers fixed-price quotes.
Kitchen renovations · Bathroom renovations · Basement renovations
Lucky 5 Group Renovation Services operates from Torbay Road in Markham and documents residential, commercial and industrial renovation work. Its official site identifies design, construction and project management among its services, making it relevant for renovation projects that require coordinated contractor oversight.
Residential renovations · Commercial renovations · Industrial renovations
Markham general contractors score above the Ontario benchmark
Featured general contractors in Markham have a median FiveBest Score™ of 73/100, compared with 68/100 for featured general contractors across Ontario.
Among nearby FiveBest markets, general contractors in Vaughan (74/100) and general contractors in Toronto (76/100) score higher, while Richmond Hill (73/100) is close to Markham.
Comparison based on profiles currently featured by FiveBest in this category with an available FiveBest Score™.
How we researched General Contractors in Markham
FiveBest reviews publicly available information for General Contractors serving Markham.
- Google rating and review history
- Documented services
- Years in business when available
- Markham and surrounding service coverage
- Business website and online presence
- Independent reputation signals when available
Research last updated: September 2026
Common Services
- Whole-home renovation in Markham
- Home additions in Markham
- Structural renovation in Markham
- Basement finishing in Markham
- Kitchen and bathroom renovation in Markham
- Open-concept conversions in Markham
FiveBest Match™
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FiveBest Match™ — Coming Soon 🔒How to Choose a general contractor in Markham
Compare general contractors in Markham for whole-home renovations, additions, structural changes, basement finishing, kitchen and bathroom projects, permit coordination, subcontractor management and design-build services. FiveBest helps homeowners compare selected local renovation contractors.
Compare selected general contractors in Markham for home renovations, additions, structural work, basement finishing, project management and design-build services.
Confirm applicable licensing, insurance and experience with projects similar in scope and complexity.
Look for a written scope, allowances, exclusions, payment schedule, change-order process and warranty terms.
Compare estimates based on the same plans, materials and assumptions rather than price alone.
Review completed renovations similar to yours and ask for relevant references.
Confirm who coordinates permits, inspections and licensed trades where they are required.
Ask who manages the site, schedule, subcontractors, communication and project changes.
What Affects General Contracting Costs
- Project size and scope
- Design and engineering
- Structural work
- Materials and finishes
- Permits and inspections
- Number of trades involved
- Site access and existing conditions
- Allowances and selections
- Schedule and project complexity
Questions to Ask a General Contractor
- Have you completed projects similar to mine?
- What licensing and insurance apply to this project?
- Who will obtain permits and coordinate inspections?
- Is the estimate itemized and what allowances are included?
- How are change orders approved and priced?
- Who supervises the project day to day?
- What is the payment schedule?
- What workmanship warranty is provided?
Frequently Asked Questions
Project cost depends on scope, design, structural work, labour, materials, permits, subcontractors, site conditions and schedule. Compare detailed estimates based on the same plans and specifications.
A general contractor may plan and manage the renovation, coordinate trades, order materials, schedule inspections, oversee site work, manage changes and remain responsible for the overall project delivery.
Permits may be required for structural changes, additions, plumbing, electrical, HVAC, occupancy changes and other work. Requirements vary by municipality and project scope.
Design-build combines design and construction responsibility within one team. Traditional delivery may involve separate designers and contractors. Compare accountability, pricing, schedule and design flexibility.
Timing depends on design, permits, product lead times, structural work, inspections, trade availability and changes during construction. Ask for a written schedule with major milestones.
Compare licences where required, insurance, similar-project experience, references, contracts, itemized estimates, allowances, change-order procedures, schedule, payment terms, warranties and communication.