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GroundworksFoundation repair company in East Gwillimbury, ON

Groundworks is a foundation repair company at 12029 McCowan Rd, Whitchurch-Stouffville, ON L4A 7X5, ranked #1 of 317 foundation repair companies in East Gwillimbury and rated 4.9 from 1,412 Google reviews. Open 7 days a week.

East Gwillimbury, ONUpdated 0 paid placements in any rankingHow we rank

Call (365) 363-9900Website ↗

Key facts

Key facts about Groundworks
Address12029 McCowan Rd, Whitchurch-Stouffville, ON L4A 7X5, East Gwillimbury, ONGet directions
Phone(365) 363-9900
Websitegroundworks.ca
HoursMonday to Friday: 7 AM – 11 PM; Saturday: 8 AM – 11 PM; Sunday: 10 AM – 11 PM
Google rating4.9 from 1,412 Google reviews

Trades

Each trade shows the evidence we matched it on.

Service area

Serves East Gwillimbury and 11 towns within 64 km: Markham, Richmond Hill, Aurora, Pickering, Newmarket, Vaughan, Scarborough, Willowdale, Concord, North York and Uxbridge.

Based in East Gwillimbury, ONView on map

Opening hours

Opening hours for Groundworks
DayHours
Monday7 AM – 11 PMevening
Tuesday7 AM – 11 PMevening
Wednesday7 AM – 11 PMevening
Thursday7 AM – 11 PMevening
Friday7 AM – 11 PMevening
Saturday8 AM – 11 PMevening
Sunday10 AM – 11 PMevening
  • Open evenings (after 6 PM)
  • Open Saturdays
  • Open Sundays

Typical foundation repair prices

Typical foundation repair prices
JobLowTypicalHigh
Foundation repairPer project: typical range of customer-reported repairs. US national range converted at 1.4054 CAD per USD (Bank of Canada, October 20, 2026)CA$3,130CA$7,270CA$11,430

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

Compare nearby foundation repair companies

Groundworks compared with nearby businesses
BusinessRankCR ScoreGoogle ratingLicense verifiedSaturdaySundayDistance away
Groundworks (this business)—674.9 (1,412)—YesYes
Pro-Leak Solutions#2645.0 (208)—YesYes30.9 km
RCC Waterproofing Toronto#3624.8 (634)—YesYes27.4 km

See all 317 ranked foundation repair companies in East Gwillimbury

Reviews

ContractorsRanked reviews

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Google

4.9from 1,412 Google reviews

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Questions about Groundworks

How is Groundworks ranked in East Gwillimbury?

Groundworks is ranked #1 of 317 foundation repair companies in East Gwillimbury by CR Score, with 67 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 Groundworks’ hours?

Groundworks is open 7 days a week. Its listed hours are Monday to Friday, 7 AM – 11 PM; Saturday, 8 AM – 11 PM; Sunday, 10 AM – 11 PM. On Saturdays it is open 8 AM to 11 PM, and on Sundays 10 AM to 11 PM. Hours come from the business listing; holiday hours may differ.

What areas does Groundworks serve?

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

What do Google reviews say about Groundworks?

Groundworks has a rating of 4.9 from 1,412 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 Groundworks?

Call Groundworks on (365) 363-9900. The business is at 12029 McCowan Rd, Whitchurch-Stouffville, ON L4A 7X5, East Gwillimbury, 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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