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Updated June 2026

Best Flat & Low-Slope Roofing Contractors in Milton

Compare services, check credentials, and contact a roofing company directly.

How we choose

7 results

Compare contractors (7)

Quick Comparison

Rank Company Specialty Experience BBB Website
1 Ollie's Roofing Ltd. Residential & Commercial Since 2008 A+ Accredited Visit
2 Cherry and Clark Roofing Most Trusted Name 40+ Years Listed Visit
3 D'Angelo & Sons Roofing & Exteriors Most Established Since 1978 Listed Visit
4 Maura Roofing Ltd. Top Certified Craftsman Since 1982 Listed Visit
5 Done-Right Roofing & Sheet Metal Local GAF Master Elite 30+ Years Listed Visit
6 Above It All Roofing Residential & Commercial 25+ Years Listed Visit
7 Tops Roofing Veteran Residential & Commercial Since 1987 Listed Visit

Detailed Reviews

#2

Cherry and Clark Roofing

Most Trusted Name
ExperienceEstablished Local Roofer (40+ Years)
BBB StatusListed
SpecialtyResidential & Commercial
Service AreaMilton & the GTA
Services and company details

Cherry and Clark Roofing Company Ltd. traces its roots back more than 40 years and runs dedicated residential and commercial divisions serving Milton. The firm is a GAF Master Elite certified installer, a credential held by a small fraction of North American roofers that backs eligible installs with stronger manufacturer warranties. Work covers shingle, metal and flat roofing, siding, eavestrough, skylights, insulation and ice-damming, with drone inspections used for assessments.

Roof Replacement Roof Repair Asphalt Shingles Metal Roofing Flat Roofing Eavestrough Skylights Siding
#3

D'Angelo & Sons Roofing & Exteriors

Most Established
ExperienceSince 1978 (45+ Years)
BBB StatusListed
SpecialtyResidential & Commercial
Service AreaMilton, GTA & Golden Horseshoe
Services and company details

Family-owned and operating since 1978, D'Angelo & Sons is one of the longest-running and broadest exterior contractors serving Milton and the wider Greater Toronto Area. Beyond roof replacement and repair it handles commercial flat roofing, eavestrough, siding, masonry, metal roofs and ice-dam removal, and provides emergency service year-round. The company carries WSIB coverage and reports tens of thousands of completed roofs across the GTA.

Roof Replacement Roof Repair Flat Roofing Eavestrough Siding Metal Roofing Masonry Ice Dam Removal Emergency Service
#4

Maura Roofing Ltd.

Top Certified Craftsman
ExperienceSince 1982 (40+ Years)
BBB StatusListed
SpecialtyResidential, Commercial & Industrial
Service AreaMilton & Greater Toronto Area
Services and company details

Established in 1982, Maura Roofing brings more than four decades of experience to Milton and surrounding communities. It holds CertainTeed's ShingleMaster and Master Craftsman roofing credentials, among the manufacturer's higher installer designations. Services include new construction, shingle and flat-roof replacement, roof repair, maintenance, inspections, emergency repairs and sheet-metal work for residential, commercial and industrial clients.

Roof Replacement Roof Repair Asphalt Shingles Flat Roofing Sheet Metal Roof Inspection Emergency Repair New Construction
#5

Done-Right Roofing & Sheet Metal

Local GAF Master Elite
ExperienceEstablished Local Roofer (30+ Years)
BBB StatusListed
SpecialtyResidential & Commercial
Service AreaMilton & Halton Region
Services and company details

Based in the Milton area on Guelph Line, Done-Right Roofing & Sheet Metal has served Milton and the Halton Region for more than 30 years. It is a GAF Master Elite certified contractor, which lets it offer GAF's extended non-prorated warranties, and is fully licensed and WSIB insured. The company handles shingle and flat roofing, sheet-metal work, repairs and replacements for homes and businesses, and was recognized in the Canadian Champion Reader's Choice awards.

Roof Replacement Roof Repair Asphalt Shingles Flat Roofing Sheet Metal Skylights
#6

Above It All Roofing

Residential & Commercial
ExperienceEstablished Local Roofer (25+ Years)
BBB StatusListed
SpecialtyResidential & Commercial
Service AreaMilton & Halton Region
Services and company details

With more than 25 years of experience, Above It All Roofing serves Milton and neighbouring towns including Acton, Georgetown, Burlington and Oakville. It is a CertainTeed ShingleMaster certified contractor and maintains partnerships with GAF, Elevate, Gentek and Velux. The firm is WSIB covered and fully licensed and insured, handling asphalt, metal and flat (EPDM, TPO, PVC) systems plus eavestrough, leaf guards, fascia, soffit and skylights.

Roof Replacement Roof Repair Asphalt Shingles Metal Roofing Flat Roofing Eavestrough Soffit & Fascia Skylights
#7

Tops Roofing

Veteran Residential & Commercial
ExperienceSince 1987 (30+ Years)
BBB StatusListed
SpecialtyResidential & Commercial
Service AreaMilton & Southern Ontario
Services and company details

Tops Roofing has installed, repaired and replaced roofs across Southern Ontario since 1987, with founder Brian Burnett bringing more than three decades in the trade. Operating its Milton-focused presence at miltonroofing.ca, the company provides residential and commercial roof installations and replacements, roof repairs, skylight installation and flat roofing, and offers financing options. Its service footprint spans Milton, Oakville, Burlington, Mississauga and the wider region.

Roof Replacement Roof Repair Asphalt Shingles Flat Roofing Skylights

When Milton's Rapid Growth and Ontario Winters Make Flat-Roof Expertise Non-Negotiable

Your condo or strata complex is approaching a reserve fund-triggered replacement

Milton's newer strata corporations are reaching the first major reserve fund draw for roofing. Procurement for these projects should be driven by the reserve fund study's scope — typically a full membrane replacement including insulation upgrade to current OBC thermal requirements — rather than the lowest immediate bid. An experienced flat-roof contractor who has done multiple Halton Region strata projects understands the engineer-of-record and property manager approval layers involved.

Your commercial building has recurring ponding or interior drain blockages

Flat roofs in Milton's freeze-thaw climate are prone to ponding at low spots caused by deck deflection or inadequate tapered insulation design. Chronic ponding accelerates membrane degradation and signals that the drainage system needs re-engineering, not just drain cleaning. A flat-roof specialist will use slope surveys and drainage flow analysis to redesign the system properly.

You need a roof system installed within Ontario's compressed autumn window

Milton's roofing season effectively ends when temperatures drop below adhesive and membrane cure thresholds — typically by late October. Projects that miss this window face either winter delays or the additional cost of heated enclosures. Planning membrane replacement for late spring through early fall, with material ordered before that window, is how experienced flat-roof contractors keep Milton commercial projects on schedule.

Frequently Asked Questions

How many flat & low-slope roofing contractors are in Milton?

Our directory lists 7 independently verified flat & low-slope roofing contractors serving Milton, Ontario, ranked by experience, certifications and reputation. Ollie's Roofing Ltd. is ranked #1.

How do I choose a flat & low-slope roofer in Milton?

Confirm licensing and insurance for Ontario, ask for flat & low-slope project references in Milton, get multiple written quotes, and check each contractor's BBB standing. Every company listed here has been independently researched.

What flat-roof membrane is best for a Milton commercial building?

SBS modified bitumen performs reliably in Ontario's cold climate because the rubberized binder remains flexible at low temperatures without becoming brittle — a quality TPO mechanically fastened systems also share. The better question is which system suits your deck type, insulation layer, and access for future maintenance. A contractor who specifies based on these building-specific variables will give you a longer-performing result than one who installs a single system regardless of conditions.

Does a flat-roof replacement in Milton require a Halton Region building permit?

The Region of Halton and the City of Milton building division require permits for commercial re-roofing projects, including full membrane replacements. Some repairs and recover projects on residential buildings may be exempt, but commercial properties almost always require a permit and inspection. Confirming the permit status before the project begins protects the building owner from stop-work orders and warranty voidance.

How do I know if my flat roof needs full replacement versus a recover or repair?

Core samples and infrared thermal scanning together provide the most reliable picture. If the existing insulation is wet in significant areas — which infrared reveals as anomalous thermal signatures — a full tear-off is warranted because re-roofing over wet insulation traps moisture and accelerates deck deterioration. If insulation is generally dry and the membrane failure is localized, a recover or targeted repair may be appropriate and extend the roof's life at a fraction of full replacement cost.

Other Roofing Specialties in Milton