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Windmill Roofing & ExteriorsSiding contractor in Ajax, ON

Windmill Roofing & Exteriors is a siding contractor at 707 Dunlop St W, Whitby, ON L1N 1V4, ranked #5 of 174 siding contractors in Ajax and rated 5.0 from 41 Google reviews. Open 7 days a week.

Ajax, ONUpdated 0 paid placements in any rankingHow we rank

Call (905) 668-9353Website ↗

Key facts

Key facts about Windmill Roofing & Exteriors
Address707 Dunlop St W, Whitby, ON L1N 1V4, Ajax, ONGet directions
Phone(905) 668-9353
Websitewindmillroofing.ca
HoursMonday to Sunday: 7 AM – 8 PM
Google rating5.0 from 41 Google reviews

Trades

Each trade shows the evidence we matched it on.

  • Sidingmain tradeGoogle main category
  • Roofingbusiness name

Service area

Serves Ajax and 11 towns within 64 km: Oshawa, Pickering, Markham, Scarborough, Uxbridge, East York, Willowdale, Richmond Hill, North York, Toronto and Concord.

Based in Ajax, ONView on map

Opening hours

Opening hours for Windmill Roofing & Exteriors
DayHours
Monday7 AM – 8 PMevening
Tuesday7 AM – 8 PMevening
Wednesday7 AM – 8 PMevening
Thursday7 AM – 8 PMevening
Friday7 AM – 8 PMevening
Saturday7 AM – 8 PMevening
Sunday7 AM – 8 PMevening
  • Open evenings (after 6 PM)
  • Open Saturdays
  • Open Sundays

Typical siding prices

Typical siding prices
JobLowTypicalHigh
Siding replacementPer house: typical range of customer-reported projects. US national range converted at 1.4054 CAD per USD (Bank of Canada, October 20, 2026)CA$7,810CA$16,290CA$24,910

Market ranges for the trade, checked October 2026, not a quote from this business. Ask for a written estimate.

Compare nearby siding contractors

Windmill Roofing & Exteriors compared with nearby businesses
BusinessRankCR ScoreGoogle ratingLicense verifiedSaturdaySundayDistance away
Windmill Roofing & Exteriors (this business)—625.0 (41)—YesYes
Branova Siding Installation & Repair Toronto#3635.0 (181)—YesNo32.7 km
Colin's Roofing & Eavestrough Inc.#4624.9 (92)—YesYes6.8 km
Master Siyuan Gutter & Aluminum Corp.#6625.0 (39)—YesYes32.4 km

See all 174 ranked siding contractors in Ajax

Reviews

ContractorsRanked reviews

No ContractorsRanked reviews yet

Google

5.0from 41 Google reviews

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Questions about Windmill Roofing & Exteriors

How is Windmill Roofing & Exteriors ranked in Ajax?

Windmill Roofing & Exteriors is ranked #5 of 174 siding contractors in Ajax by CR Score, with 62 out of 100 as of October 2026. The score weighs reputation, credentials, review volume, recency, availability, trade focus, proximity, claimed profile, partnered and ContractorsRanked reviews. No business can pay to change its rank.

What are Windmill Roofing & Exteriors’ hours?

Windmill Roofing & Exteriors is open 7 days a week. Its listed hours are Monday to Sunday, 7 AM – 8 PM. On Saturdays it is open 7 AM to 8 PM, and on Sundays 7 AM to 8 PM. Hours come from the business listing; holiday hours may differ.

What areas does Windmill Roofing & Exteriors serve?

Serves Ajax and 11 towns within 64 km: Oshawa, Pickering, Markham, Scarborough, Uxbridge, East York, Willowdale, Richmond Hill, North York, Toronto and Concord. The list is based on the business's location and the usual service radius for siding. Confirm your address is covered when you call.

What do Google reviews say about Windmill Roofing & Exteriors?

Windmill Roofing & Exteriors has a rating of 5.0 from 41 Google reviews. The CR Score adjusts the star rating for review count, so a high rating from a few reviews counts for less than the same rating from many.

How do I contact Windmill Roofing & Exteriors?

Call Windmill Roofing & Exteriors on (905) 668-9353. The business is at 707 Dunlop St W, Whitby, ON L1N 1V4, Ajax, ON. Its website is linked in the key facts on this page. Ask for a written estimate before any work starts.

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