December in Ontario brings snow, freezing rain, and shifting temperatures — the perfect conditions to reveal hidden roof problems. Preparing your roof now can prevent leaks, ice dams, and costly mid-winter repairs. This guide is written for homeowners across Platinum Roofing’s service area (Hamilton, Burlington, Oakville, Niagara, Milton) and mixes practical DIY checks you can do this month with clear signs that mean you should call our roofers.
December Roof Checklist (Step-by-step)
1. Walk the perimeter (safely)
Look for obvious signs from the ground before climbing a ladder: missing shingles, large patches of granule loss, or sagging rooflines. If you spot anything concerning, schedule a professional inspection. (Tip: use binoculars and a phone camera to document).
2. Inspect the attic
Go into the attic during daylight and look for light shining through the roof (indicates holes), water stains, or frost/ice formation inside the rafters. Moisture in the attic often precedes ceiling leaks. If you see water stains, act now.
3. Check for damaged or missing shingles
Shingles that are cracked, lifted, or missing let water in. Winter winds and freeze-thaw cycles accelerate this process. Replace or patch any problem areas quickly.
4. Clean gutters and downspouts
Clogged eavestroughs cause water to back up under shingles and increase ice dam risk. Ensure gutters are clear of leaves and debris and downspouts direct water away from the foundation.
5. Look for flashing problems around chimneys, vents, and skylights
Flashing is a common source of leaks, especially around skylights and chimneys. If your home has skylights or sun tunnels, ensure seals are intact.
6. Attic ventilation & insulation check
Poor ventilation and inadequate insulation increase ice dam risk. Cold roofs with warm, moist attics cause snow melt that refreezes at the eaves. Consider improving attic insulation or ventilation to create a stable roof temperature.
7. Trim overhanging branches
Branches rubbing on shingles wear them down and can break during storms. Trim them back at least several feet from the roofline.
8. Look for signs of winter damage
Common signs include buckled shingles, water stains on ceilings, ice dams, and sagging spots. Platinum Roofing’s “Signs of Winter Roof Damages” page lists these problems in detail — act early to avoid structural damage.
When to Call a Pro (Red flags)
- Visible water intrusion (ceiling stains or active drips).
- Significant shingle loss across an area.
- Sagging roof or decking flex.
- Recurrent ice dams despite cleared gutters.
- Damaged skylights or flashing.
Platinum Roofing offers inspections and emergency repairs across Hamilton, Oakville, Milton and neighbouring areas; contact them for a professional assessment.
Quick DIY fixes you can do this December
- Safely clear gutters with a plastic scoop and ladder stabilizer.
- Use a roof rake to remove excess snow from low slopes (stand on the ground — never climb a snow-covered roof).
- Apply temporary sealant to small flashing gaps (short-term only — schedule a proper repair with our professionals).
Cost considerations & financing options
Roof repairs and replacements vary by material, scope, and region. For preventative repairs, expect modest costs compared to full replacement. Platinum Roofing lists financing options and free estimates — ask about seasonal promotions and bundled services (for example: roof replacement + free sun tunnel offer occasionally shown on their contact page).
Local weather tips for Ontario homeowners
- Watch for freeze-thaw patterns after rain or mild spells in December — these create the worst conditions for ice dams.
- Schedule inspections after short warm spells when melted snow can reveal problem areas.
FAQs
Q: How often should I get a roof inspection?
A: Have a basic inspection annually and after major storms. In cold climates like Ontario, an extra pre-winter inspection in November/December is recommended.
Q: Can I remove snow from my roof myself?
A: Use a roof rake from the ground. Do not climb a snow-covered roof — call professionals for steep or high roofs.
Q: Are ice dams fixable?
A: Yes — but treatment depends on cause. Removing gutter blockages, improving attic insulation, and professional roof repairs reduce recurrence.
Q: What’s the fastest sign that I need a roofer now?
A: Active leaks, large ceiling stains, sagging sections, or missing roof structure elements.
Contact our Platinum Roofing Experts
- Roof replacement & repair: Platinum Roofing & Exteriors
- Skylight services: Platinum Roofing & Exteriors
December repairs and preventative steps now save thousands later. If you want Platinum Roofing to inspect your roof before serious winter weather hits, request a free estimate today.


