Top 5 Roofers
in St. Catharines
We compared 5 Roofers serving St. Catharines, Ontario using publicly available business information, including customer reputation, local presence and documented services. Across the businesses featured here, documented specialties include roof repair and leak work, roof replacement, and asphalt shingle roofing.
≈ St. Catharines’s featured roofers have a FiveBest Score in line with the Ontario benchmark.
Find the right roofer for your project in St. Catharines.
Answer 3 quick questions. We’ll compare your needs with our research on these companies.

For roofers in St. Catharines, Niagara RoofMasters offers documented roof repair and replacement for residential and commercial properties, including flat-roof installation and maintenance. Its roofing work also supports projects involving skylight installation.
Roof repair · Roof replacement · Residential roofing

For roofers in St. Catharines, AJT Roofing and Contracting has documented capabilities for shingle roof repair, full roof replacement, and flat roof repair and installation.
Shingle roof repair · Full roof replacement · Flat roof repair

For roofers in St. Catharines, Ace 1 Quality Roofing | Siding, Eavestroughs, Roofing Niagara documents roof repair and replacement services, supporting homeowners with projects ranging from addressing roofing issues to replacing an existing roof.
Roof repair · Roof replacement

For roofing in St. Catharines, Noble Roofing has documented services for shingle replacement, new-construction roofing, residential low-slope roofs, flat roofing and emergency roof repairs.
Shingle replacement · New-construction roofing · Residential low-slope roofing

McPherson Roofing is a Niagara Region roofing contractor whose documented offerings include cedar roofing, soffit work and siding. For St. Catharines-area roofing projects, it may be relevant where a roof job also involves related exterior components. Its services are listed for residential and commercial clients.
Roofing services · Cedar roofing · Soffit work
St. Catharines roofers lead nearby FiveBest markets
Featured roofers in St. Catharines have a median FiveBest Score™ of 76/100, compared with 76/100 for featured roofers across Ontario.
Among nearby FiveBest markets, Welland (74/100) scores below St. Catharines, while Niagara Falls (76/100) is close to St. Catharines.
Comparison based on profiles currently featured by FiveBest in this category with an available FiveBest Score™.
How we researched Roofers in St. Catharines
FiveBest reviews publicly available information for Roofers serving St. Catharines.
- Google rating and review history
- Documented services
- Years in business when available
- St. Catharines 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 St. Catharines
- Roof replacement in St. Catharines
- Asphalt shingle roofing in St. Catharines
- Flat roofing in St. Catharines
- Metal roofing in St. Catharines
- Emergency roof repair in St. Catharines
How to Choose a roofer in St. Catharines
Compare roofing companies in St. Catharines 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 St. Catharines 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 St. Catharines 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.