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Ontario Downspout Service

Updated 2026-08-25 · 19,820 reviewed · 200 listed · Scored from 107 Google reviews · How we rank ›

4.9(107) 88 composite score See reviews on Google ✓ Google-verified
Eavestrough & GuttersGutter ServiceSheet Metal ContractorRoof Inspection & MaintenanceRoofing ContractorSiding ContractorSkylight ContractorWaterproofing ServiceInsulation Contractor

Google-verified107 Google reviewsdecades

Ontario Downspout Service
Services
Eavestrough & Gutters, Gutter Service, Sheet Metal Contractor
Reviews
107

What recent reviews say

Mark and his crew show up early, work through till sundown, and explain every step of the job before starting. Reviewers consistently praise his honesty during inspections, detailed quotes, and ability to handle complex multi-trade projects (roof, gutters, siding, carpentry) as one team rather than juggling contractors. Site cleanup happens daily and work finishes on or ahead of schedule. The main friction point is the $500 upfront inspection fee; one reviewer felt uncomfortable that this would not transfer toward repair costs if they declined the quote.

A father-and-son operation serving the GTA for decades, Ontario Downspout focuses on exterior work done well rather than being the cheapest option. Reviewers note Mark personally manages projects, shows up for emergency calls on weekends, and will push work to 15-hour days to meet deadlines. Neighbors often comment on the professionalism and site management.

Praised for
  • early starts and long hours
  • transparent communication and honest assessment
  • skilled craftsmanship across multiple trades
  • thorough site cleanup
  • responsive and attentive ownership
Watch-outs
  • $500 inspection fee policy not fully refundable if no work proceeds
punctualskilled-workmanshipcleans-up-after-jobresponsive-quotestransparent-estimateprofessional-crewlong-lasting-repair
Best for: Homeowners with multi-trade exterior projects seeking one responsive contractor and honest assessment.
Think twice if: $500 upfront inspection fee is not refundable if you decline the quote.

Strengths

  • All-in-one exterior contractor (roof, gutters, siding, carpentry)
  • Mark personally manages each project
  • Early starts and extended work days to meet timelines
  • Daily site cleanup and respects neighboring properties

Worth knowing

  • Mark Stone leads the company as owner
  • Emergency service available (responded to Saturday night call, attended Sunday 8am)
  • Father-and-son operation
  • $500 upfront inspection fee policy (mentioned by one reviewer as non-refundable if work not commissioned)
  • Crew routinely works 7am to 9pm or longer to complete projects on schedule
  • Handles complex carpentry alongside roofing (flat roof underlayment, slopping roof correction, structural issues)
  • 6-inch heavy-gauge custom eavestroughs offered
  • Upgrades customers from 5-inch to 6-inch gutters when overflow issues present

What reviews say by service

Eavestrough & Gutters
Consistently praised for 6-inch custom installations, overflow solutions, and daily cleanup during and after work.
Gutter Service
Reviewers highlight responsive inspection, clear recommendations for upgrades, and reliable follow-up maintenance.
Roof Repair
Emergency flat roof repairs completed overnight with transparent quote; reviewers note honesty about remaining roof life.
Roof Replacement & Installation
Multiple reviews praise shingle and flat roof replacements with extensive carpentry, completed on schedule despite complexity.
Roof Inspection & Maintenance
Mark personally conducts inspections, gives honest assessment of roof condition and timeline to replacement, no pressure to upsell.
Siding Contractor
Siding replaced alongside gutters and roof in multi-trade projects; coordinated professionally with other trades.

How it compares

  • Rated 4.9 against a 4.77 average across the 67 eavestrough & gutters businesses listed here.
  • Has more Google reviews than 81% of the businesses in this directory.

How we scored this

Ranking Method
Star rating 91
Review volume 88
Review recency 100
Review sentiment 75
Profile completeness 100
Verification 30

Rating breakdown

5
104
4
1
3
0
2
0
1
2

Common questions

Do you offer emergency weekend service?
Yes. One reviewer reported Mark answered a late Saturday night emergency roof leak call and attended the property Sunday morning at 8am. They provide emergency service as listed on their website.
What areas do you serve?
Their website lists Toronto, Greater Toronto Area, North York, Etobicoke, Scarborough, Vaughan, Richmond Hill, and Markham. Based in Concord, Vaughan.
Do you handle multi-trade projects (roof, gutters, siding together)?
Yes. Reviewers consistently note you handle roofing, eavestrough, soffit, fascia, and siding in one coordinated job, avoiding the need to coordinate multiple contractors.
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Last updated 2026-08-25