326 general contractors ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in Waterloo: Rainbow Eavestroughing Corporation, CR Score 91/100; 4.9★ from 127 Google reviews.
Best for emergencies (open 24/7): Woodhouse Group, posts 24/7 hours; ranked #2 of 326.
Most-reviewed: Westmount Craftsmen, 128 Google reviews at 4.8★, the most of 326 ranked; ranked #20.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
326 Waterloo general contractors are ranked here by CR Score, from 8 published factors. 18 are open 24/7, 125 open Saturdays and 51 open Sundays, based on posted hours. The median Google rating is 5.0★ across 326 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Rainbow Eavestroughing Corporation | 91 | 4.9★ (127) | Norfolk County, 13 km away | — | Overall |
| 2 | Woodhouse Group | 90 | 4.3★ (70) | Kitchener, 4 km away | 24/7 | Emergencies |
| 3 | Clear Property Services | 89 | 4.8★ (69) | Kitchener, 9 km away | Sat · Sun | — |
| 4 | KW Renovations | 88 | 4.8★ (46) | Kitchener, 3 km away | Sat · Sun · Evenings | — |
| 5 | Osika Contracting | 88 | 5.0★ (15) | Guelph, 7 km away | 24/7 | — |
| 6 | AA Zdero's Caulking Co | 88 | 5.0★ (56) | Kitchener, 7 km away | Sat · Sun · Evenings | — |
| 7 | Dirty Goats Construction | 86 | 5.0★ (27) | Cambridge, 10 km away | Sat · Sun · Evenings | — |
| 8 | MJO Renovation | 86 | 4.4★ (13) | Kitchener, 3 km away | 24/7 | — |
| 9 | Brouwer Home Renovations | 86 | 5.0★ (38) | Cambridge, 19 km away | Sat · Sun · Evenings | — |
| 10 | TimberRoot Renovations | 86 | 5.0★ (6) | Huron East, 6 km away | 24/7 | — |
Ordered by CR Score, a 0–100 score from 8 published factors. Paid placement never changes the order.
Ranked #1 because of its Google rating and trade focus: 4.9★ from 127 Google reviews, listed on Google as “Construction company”.
Based on 5 of 8 factors; credentials, recency and availability not yet collected.
Based in Kitchener, 4 km away
Ranked #2 because of its Google rating and availability: 4.3★ from 70 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Kitchener, 9 km away
Ranked #3 because of its Google rating and trade focus: 4.8★ from 69 Google reviews, listed on Google as “General contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Kitchener, 3 km away
Ranked #4 because of its Google rating and trade focus: 4.8★ from 46 Google reviews, listed on Google as “General contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Guelph, 7 km away
Ranked #5 because of its Google rating and availability: 5.0★ from 15 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Kitchener, 7 km away
Ranked #6 because of its Google rating and trade focus: 5.0★ from 56 Google reviews, listed on Google as “Construction company”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Cambridge, 10 km away
Ranked #7 because of its Google rating and trade focus: 5.0★ from 27 Google reviews, listed on Google as “Construction company”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Kitchener, 3 km away
Ranked #8 because of its Google rating and availability: 4.4★ from 13 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Cambridge, 19 km away
Ranked #9 because of its Google rating and trade focus: 5.0★ from 38 Google reviews, listed on Google as “General contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Huron East, 6 km away
Ranked #10 because of its Google rating and availability: 5.0★ from 6 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Kitchener, 8 km away
Ranked #11 because of its Google rating and availability: 5.0★ from 6 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Kitchener, 2 km away
Ranked #12 because of its Google rating and trade focus: 5.0★ from 13 Google reviews, listed on Google as “Construction company”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Waterloo
Ranked #13 because of its Google rating and availability: 5.0★ from 3 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Waterloo
Ranked #14 because of its Google rating and trade focus: 4.9★ from 11 Google reviews, listed on Google as “Contractor”.
Based on 5 of 8 factors; credentials, recency and availability not yet collected.
Based in Kitchener, 34 km away
Ranked #15 because of its Google rating and trade focus: 5.0★ from 59 Google reviews, listed on Google as “General contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Kitchener, 2 km away
Ranked #16 because of its Google rating and trade focus: 4.8★ from 39 Google reviews, listed on Google as “General contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in North Perth, 8 km away
Ranked #17 because of its Google rating and trade focus: 4.9★ from 16 Google reviews, listed on Google as “Construction company”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Cambridge, 14 km away
Ranked #18 because of its Google rating and trade focus: 5.0★ from 25 Google reviews, listed on Google as “Construction company”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Cambridge, 23 km away
Ranked #19 because of its Google rating and availability: 5.0★ from 10 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Kitchener, 3 km away
Ranked #20 because of its Google rating and review volume: 4.8★ from 128 Google reviews, the most Google reviews on this list (128).
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Kitchener, 3 km away
Ranked #21 because of its Google rating and trade focus: 4.9★ from 39 Google reviews, listed on Google as “General contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Cambridge, 10 km away
Ranked #22 because of its Google rating and trade focus: 4.9★ from 49 Google reviews, listed on Google as “Construction company”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Paris, 33 km away
Ranked #23 because of its Google rating and trade focus: 5.0★ from 43 Google reviews, listed on Google as “Construction company”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Guelph, 20 km away
Ranked #24 because of its Google rating and trade focus: 5.0★ from 35 Google reviews, listed on Google as “General contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Kitchener, 5 km away
Ranked #25 because of its Google rating and trade focus: 4.9★ from 34 Google reviews, listed on Google as “General contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
#1 to #25 are shown in full above. Here are #26 to #50, in CR Score order; each links to its profile. We publish the top 50 of 326 ranked general contractors here; the rest are on their profiles.
20 more general contractors within 40 km that we can't rank yet: too few reviews, or a trade we couldn't confirm. Listed A to Z.
US national ranges converted to CAD, not adjusted for Waterloo. Each row names its basis and the month we checked it.
| Job | Low | Typical | High | Basis | Checked |
|---|---|---|---|---|---|
| Kitchen remodel | CA$20,510 | CA$37,930 | CA$58,490 | Per project: typical range of customer-reported remodels (about $75 to $250 per sq ft). US national range converted at 1.4054 CAD per USD (Bank of Canada, October 20, 2026) | October 2026 |
| Bathroom remodel | CA$9,350 | CA$17,080 | CA$24,820 | Per bathroom: typical range of customer-reported remodels. US national range converted at 1.4054 CAD per USD (Bank of Canada, October 20, 2026) | October 2026 |
We scored 326 Waterloo general contractors on 8 factors, weighted as shown. A business is ranked when its trade is confirmed and it has 3 or more Google reviews or a claimed profile. Unknown factors are left out of the score, not counted as zero. Scores last refreshed October 22, 2026.
Paid placement never changes a rank or score. Featured businesses are paid, labelled, limited to 3 and shown above the ranking, outside it.
| Factor | Weight | Computed from | In Waterloo data |
|---|---|---|---|
| Reputation | 35% | Bayesian-adjusted Google star rating | Measured |
| Credentials | 15% | Active state license 0.6, bond 0.2, workers’ comp 0.2 | Not yet collected |
| Review volume | 10% | log10(reviews + 1) against the list maximum | Measured |
| Recency | 10% | Share of reviews from the last 12 months | Not yet collected |
| Availability | 10% | Weekly open hours, Saturday, Sunday, 24/7 or same-day | Measured |
| Trade focus | 10% | Google main category 1.0, business name 0.7, additional category 0.5 | Measured |
| Proximity | 5% | 1.0 when based in the city, falling to 0 at the trade’s radius | Measured |
| Completeness | 5% | Website, photos, description, hours, claimed profile (0.2 each) | Measured |