Top 5 Roofers
in Newmarket
We compared 5 Roofers serving Newmarket, Ontario using publicly available business information, including customer reputation, local presence and documented services. Across the businesses featured here, documented specialties include asphalt shingle roofing, roof replacement, and roof repair and leak work.
↘ Newmarket’s featured roofers have a FiveBest Score below the Ontario benchmark.
Find the right roofer for your project in Newmarket.
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T. Simpson Roofing is a Newmarket roofer offering documented roof replacement, repairs, inspections and insurance-claim assistance. BBB lists the business as started in 1992, and GAF lists its Newmarket location as a Master Elite contractor. The company also maintains a Barrie office for broader Central Ontario coverage.
Roof replacement · Roof repairs · 24/7 emergency roof repairs

Serving Newmarket from its Aurora office, Principal Roofing lists roof repair, shingle and flat-roof replacement, and roof inspections among its roofing work. Its Newmarket page also documents gutter and eavestrough repair and installation, making it relevant for projects involving both the roof covering and roof-edge drainage components.
Roof repair · Shingle roof replacement · Flat roof replacement

Bros. Roofing lists Newmarket among its GTA service areas for re-roofing and roof replacement. Its documented roofing work includes asphalt-shingle replacement, flat-roof repair and metal-roof installation, with eavestrough and downspout replacement also available for projects involving roof drainage.
Roof replacement · Asphalt-shingle replacement · Flat roof repair

Warner Roofing Inc. provides Newmarket roofing services including shingle and metal roofing, flat-roof work, roofing carpentry, flashing, vents, and skylights. For re-roofing projects, it documents installation progress with photos and offers financing for roof replacements, providing a record of completed work.
Shingle roofing · Metal roofing · Flat roof installation and replacement

Ainger Group Roofing and Exteriors provides Newmarket roofing work including shingle and metal roof installation and repair. For shingle replacement projects, its Newmarket service information describes full tear-offs when needed, along with underlayment, ice-and-water protection and flashing around vents and chimneys.
Shingle roof installation · Shingle roof repair · Metal roof installation
Newmarket roofers score below the Ontario benchmark
Featured roofers in Newmarket have a median FiveBest Score™ of 73/100, compared with 76/100 for featured roofers across Ontario.
Among nearby FiveBest markets, roofers in Richmond Hill (79/100) and roofers in Vaughan (79/100) score higher, while Aurora (72/100) scores below Newmarket.
Comparison based on profiles currently featured by FiveBest in this category with an available FiveBest Score™.
How we researched Roofers in Newmarket
FiveBest reviews publicly available information for Roofers serving Newmarket.
- Google rating and review history
- Documented services
- Years in business when available
- Newmarket and surrounding service coverage
- Business website and online presence
- Independent reputation signals when available
Research last updated: September 2026
Typical Service Price Ranges
Price ranges are based on typical industry averages. Actual costs may vary depending on the scope of work, materials, labour, property characteristics and local market conditions.
- Roof inspection $150–$400
- Minor roof repair $350–$1,200
- Leak repair $450–$1,800
- Asphalt shingle roof $7,500–$18,000+
- Flat roof project $8–$18/sq ft
Common Services
- Roof repair in Newmarket
- Roof replacement in Newmarket
- Asphalt shingle roofing in Newmarket
- Flat roofing in Newmarket
- Metal roofing in Newmarket
- Emergency roof repair in Newmarket
How to Choose a roofer in Newmarket
Compare roofing companies in Newmarket for roof repair, complete roof replacement, asphalt shingles, flat roofing, metal roofing, leak detection, flashing and skylight repair, roof inspections and emergency roofing. FiveBest helps homeowners and businesses compare selected local roofing contractors.
Compare selected roofers in Newmarket for roof repair, roof replacement, asphalt shingles, flat roofing, leak repair, inspections and emergency roofing service.
Ask how shingles or membrane, flashing, penetrations, ventilation, decking and drainage will be evaluated.
Confirm manufacturer, product line, underlayment, ice-and-water protection, flashing and ventilation components.
Check tear-off, disposal, deck repairs, flashing, ventilation, cleanup and taxes rather than comparing a single total.
Confirm appropriate liability and worker coverage for roofing and elevated work.
Ask how damaged sheathing discovered after tear-off will be documented, approved and priced.
Compare manufacturer coverage and the roofer’s workmanship warranty, including registration requirements.
What Affects Roofing Costs
- Roof size
- Roof pitch and height
- Roofing material
- Number of layers to remove
- Decking condition
- Flashing and penetrations
- Ventilation upgrades
- Access and disposal
- Complex roof geometry
- Warranty system
Questions to Ask a Roofer
- What roofing product and underlayment are included?
- How will flashing and roof penetrations be handled?
- Is ventilation being assessed?
- Does the quote include tear-off and disposal?
- How are unexpected decking repairs priced?
- What insurance coverage applies to the work?
- What manufacturer warranty is included?
- What workmanship warranty do you provide?
Frequently Asked Questions
Roof repair costs in Newmarket depend on the source and extent of the damage, roof height and slope, materials, accessibility and whether emergency service is required. A written inspection and estimate can clarify the scope.
Replacement cost varies with roof size, pitch, layers to remove, decking condition, ventilation, flashing and selected materials. Asphalt shingles, metal roofing and flat-roof systems have different price ranges.
A localized issue on a roof in otherwise good condition may be repairable. Widespread deterioration, recurring leaks, damaged decking or an aging roofing system may make replacement more practical.
Service life depends on product quality, installation, ventilation, roof exposure, weather and maintenance. A roofer can assess remaining useful life during an inspection.
Many roofing companies provide emergency tarping or repairs after active leaks, storms, wind, hail or fallen branches. Availability and temporary-versus-permanent repair options should be confirmed.
Compare insurance, applicable licensing, written estimates, materials, ventilation and flashing details, workmanship warranties, manufacturer warranties, cleanup terms and recent local reviews.