90/100CR Score
Ranked #1 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.
- 5.0★ from 15 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
Best General Contractors in Guelph, ON (2026)
347 general contractors ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
The short answer
- 1
Best overall in Guelph: Osika Contracting, CR Score 90/100; 5.0★ from 15 Google reviews; open 24/7.
- 4
Best for emergencies (open 24/7): Woodhouse Group, posts 24/7 hours; ranked #4 of 347.
- 46
Most-reviewed: Westmount Craftsmen, 128 Google reviews at 4.8★, the most of 347 ranked; ranked #46.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
347 Guelph general contractors are ranked here by CR Score, from 8 published factors. 25 are open 24/7, 153 open Saturdays and 68 open Sundays, based on posted hours. The median Google rating is 5.0★ across 347 rated businesses.
Top 10 general contractors in Guelph at a glance
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Osika Contracting | 90 | 5.0★ (15) | Guelph | 24/7 | Overall |
| 2 | Rainbow Eavestroughing Corporation | 88 | 4.9★ (127) | Norfolk County, 28 km away | — | — |
| 3 | Revvup Construction Group Inc. | 88 | 5.0★ (35) | Guelph | Sat · Sun · Evenings | — |
| 4 | Woodhouse Group | 87 | 4.3★ (70) | Kitchener, 22 km away | 24/7 | Emergencies |
| 5 | McLean Property Services | 87 | 4.9★ (19) | Guelph | Sat · Sun | — |
| 6 | Brouwer Home Renovations | 86 | 5.0★ (38) | Cambridge, 18 km away | Sat · Sun · Evenings | — |
| 7 | Design & Custom Construction | 86 | 4.8★ (18) | Guelph | Sat · Sun · Evenings | — |
| 8 | Clear Property Services | 86 | 4.8★ (69) | Kitchener, 23 km away | Sat · Sun | — |
| 9 | Dirty Goats Construction | 86 | 5.0★ (27) | Cambridge, 14 km away | Sat · Sun · Evenings | — |
| 10 | KW Renovations | 86 | 4.8★ (46) | Kitchener, 20 km away | Sat · Sun · Evenings | — |
The 347 best general contractors in Guelph, ranked
Ordered by CR Score, a 0–100 score from 8 published factors. Paid placement never changes the order.
Based in Norfolk County, 28 km away
88/100CR ScoreRanked #2 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.
- 4.9★ from 127 Google reviews
- Address
- 2465 Fischer-Hallman Rd RR 1, Ayr, ON N0B 1E0
Based in Guelph
88/100CR ScoreRanked #3 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.
- 5.0★ from 35 Google reviews
- Hours
- Mon–Sun 9 AM–8 PM
- Address
- 4 Bushmills Crescent, Guelph, ON N1K 1T5
Based in Kitchener, 22 km away
87/100CR ScoreRanked #4 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.
- 4.3★ from 70 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 207 Madison Ave S, Kitchener, ON N2G 3M7
Based in Guelph
87/100CR ScoreRanked #5 because of its Google rating and trade focus: 4.9★ from 19 Google reviews, listed on Google as “General contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
- 4.9★ from 19 Google reviews
- Hours
- Mon–Sat 8 AM–5 PM · Sun 9 AM–4 PM
Based in Cambridge, 18 km away
86/100CR ScoreRanked #6 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.
- 5.0★ from 38 Google reviews
- Hours
- Mon–Sun 7 AM–7 PM
- Address
- 950 Franklin Blvd, Cambridge, ON N1R 8R0
Based in Guelph
86/100CR ScoreRanked #7 because of its Google rating and trade focus: 4.8★ from 18 Google reviews, listed on Google as “Construction company”.
Based on 6 of 8 factors; credentials and recency not yet collected.
- 4.8★ from 18 Google reviews
- Hours
- Mon–Sun 7 AM–7 PM
- Address
- 81 Western Ave, Guelph, ON N1H 6A7
Based in Kitchener, 23 km away
86/100CR ScoreRanked #8 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.
- 4.8★ from 69 Google reviews
- Hours
- Mon–Sun 9 AM–6 PM
- Address
- 25 Groff Pl Unit 6B, Kitchener, ON N2E 2L6
Based in Cambridge, 14 km away
86/100CR ScoreRanked #9 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.
- 5.0★ from 27 Google reviews
- Hours
- Mon–Sun 7 AM–7 PM
#10 KW Renovations
Based in Kitchener, 20 km away
86/100CR ScoreRanked #10 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.
- 4.8★ from 46 Google reviews
- Hours
- Mon–Sun 8 AM–8 PM
- Address
- 891 Guelph St Unit 106, Kitchener, ON N2C1X3
Based in Guelph
86/100CR ScoreRanked #11 because of its Google rating and trade focus: 5.0★ from 12 Google reviews, listed on Google as “General contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
- 5.0★ from 12 Google reviews
- Hours
- Mon–Sun 8 AM–11 PM
- Address
- 488 Woodlawn Rd E, Guelph, ON N1E 0H9
Based in Kitchener, 22 km away
86/100CR ScoreRanked #12 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.
- 5.0★ from 56 Google reviews
- Hours
- Mon–Fri 7 AM–9 PM · Sat 7 AM–9:30 PM · Sun 7 AM–9 PM
- Address
- 214 Fallowfield Dr, Kitchener, ON N2C 2T7
Based in Guelph
86/100CR ScoreRanked #13 because of its Google rating and trade focus: 5.0★ from 39 Google reviews, listed on Google as “General contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
- 5.0★ from 39 Google reviews
- Hours
- Mon–Sat 8 AM–5 PM · Sun closed
- Address
- 68 Milson Crescent, Guelph, ON N1C 1G7
Based in Guelph
86/100CR ScoreRanked #14 because of its Google rating and trade focus: 5.0★ from 39 Google reviews, listed on Google as “Construction company”.
Based on 6 of 8 factors; credentials and recency not yet collected.
- 5.0★ from 39 Google reviews
- Hours
- Mon–Sat 8 AM–5 PM · Sun closed
Based in Guelph
85/100CR ScoreRanked #15 because of its Google rating and trade focus: 5.0★ from 11 Google reviews, listed on Google as “Construction company”.
Based on 5 of 8 factors; credentials, recency and availability not yet collected.
- 5.0★ from 11 Google reviews
- Address
- 183 Elizabeth St, Guelph, ON N1E 2X5
Based in Guelph
85/100CR ScoreRanked #16 because of its Google rating and availability: 5.0★ from 5 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
- 5.0★ from 5 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
#17 Handlers
Based in Guelph
85/100CR ScoreRanked #17 because of its Google rating and trade focus: 4.7★ from 13 Google reviews, listed on Google as “Contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
- 4.7★ from 13 Google reviews
- Hours
- Mon–Sun 9 AM–5 PM
Based in Cambridge, 22 km away
85/100CR ScoreRanked #18 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.
- 5.0★ from 10 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 31 Santo Cristo Pl, Cambridge, ON N1R 8A2
#19 Kerrs Renovation
Based in Milton, 38 km away
84/100CR ScoreRanked #19 because of its Google rating and availability: 5.0★ from 21 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
- 5.0★ from 21 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
Based in Huron East, 17 km away
84/100CR ScoreRanked #20 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.
- 5.0★ from 6 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
#21 Remodel Masters
Based in Guelph
84/100CR ScoreRanked #21 because of its Google rating and trade focus: 4.3★ from 11 Google reviews, listed on Google as “General contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
- 4.3★ from 11 Google reviews
- Hours
- Mon–Sun 7 AM–9 PM
#22 Renew renovation
Based in Cambridge, 19 km away
84/100CR ScoreRanked #22 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.
- 5.0★ from 25 Google reviews
- Hours
- Mon–Thu 9 AM–5 PM · Fri closed · Sat–Sun 9 AM–5 PM
- Address
- 539 Parkview Crescent, Cambridge, ON N3H 4Z9
Based in Brampton, 26 km away
84/100CR ScoreRanked #23 because of its Google rating and availability: 5.0★ from 9 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
- 5.0★ from 9 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
Based in Guelph
84/100CR ScoreRanked #24 because of its Google rating and availability: 1.9★ from 9 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
- 1.9★ from 9 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 1159 Victoria Rd S, Guelph, ON N1L
Based in Brampton, 40 km away
84/100CR ScoreRanked #25 because of its Google rating and availability: 5.0★ from 19 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
- 5.0★ from 19 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 5 Southbend Dr, Brampton, ON L7A 1J4
General contractors ranked #26 to #50
#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 347 ranked general contractors here; the rest are on their profiles.
Also serving Guelph
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.
How much do general contractors cost in Guelph?
US national ranges converted to CAD, not adjusted for Guelph. 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 |
How we ranked Guelph general contractors
We scored 347 Guelph 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 Guelph 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 |
General contractors in Guelph: frequently asked questions
Who is the best general contractor in Guelph?
By CR Score, the highest-ranked general contractor in Guelph, ON is Osika Contracting with a CR Score of 90/100. It has 5.0★ from 15 Google reviews. It is open 24/7. Rainbow Eavestroughing Corporation (#2) and Revvup Construction Group Inc. (#3) follow. We ranked 347 general contractors on 8 factors, last updated October 22, 2026.
How many general contractors are there in Guelph?
ContractorsRanked ranks 347 general contractors serving Guelph, ON. 18 of them are based in Guelph; the rest serve it from nearby towns. Another 20 within 40 km are listed but not ranked yet. Counts are as of October 2026.
Which general contractors in Guelph are open 24/7?
25 ranked general contractors in Guelph post 24/7 hours. The highest-ranked are Osika Contracting (#1), Woodhouse Group (#4) and BASIL'S HOME RENOVATIONS (#16). Hours come from each business's Google listing as of October 2026, so call to confirm.
Which general contractors in Guelph work on weekends?
153 of 347 ranked general contractors post Saturday hours and 68 post Sunday hours. The highest-ranked open Saturdays are Osika Contracting (#1), Revvup Construction Group Inc. (#3) and Woodhouse Group (#4). Posted hours are office hours; crews may book weekend jobs separately.
How much does kitchen remodel cost in Guelph?
Kitchen remodel typically costs CA$20,510 to CA$58,490, with CA$37,930 typical (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)). This is a national range, not adjusted for Guelph. Prices were last checked October 2026. Get at least two written quotes before you hire.
What Google rating do Guelph general contractors have?
The median Google rating among 347 rated general contractors in Guelph is 5.0★, with a median of 11 reviews. Westmount Craftsmen has the most, 128 reviews, and ranks #46. We adjust ratings for review count, so a few five-star reviews cannot top the list.
How does ContractorsRanked rank general contractors?
Each general contractor gets a 0–100 CR Score from 8 published factors, led by reputation (35%), credentials (15%), review volume (10%) and recency (10%). Factors we cannot measure are left out, not scored as zero. Only businesses with a confirmed trade and 3 or more reviews, or a claimed profile, are ranked.
Do general contractors outside Guelph count in this ranking?
Yes, if they are within 40 km of the Guelph city centre, our service radius for general contractors. Each listing shows where the business is based and how far away it is. Proximity is 5% of the CR Score, so a nearby business gets a small edge.
Update log for Guelph
- October 2026: CR Scores recalculated for 347 general contractors serving Guelph.
More general contractors and Guelph pages
General contractors near Guelph
- General contractors in Cambridge, ON421 ranked
- General contractors in Waterloo, ON326 ranked
- General contractors in Kitchener, ON373 ranked
- General contractors in Milton, ON711 ranked
- General contractors in Burlington, ON629 ranked
- General contractors in Paris, ON380 ranked
- General contractors in New Hamburg, ON304 ranked
- General contractors in Brampton, ON1090 ranked
- General contractors in Ancaster, ON402 ranked
- General contractors in Orangeville, ON198 ranked
Other trades in Guelph
- Roofers in Guelph619 ranked
- Plumbers in Guelph263 ranked
- Electricians in Guelph240 ranked
- HVAC contractors in Guelph291 ranked
- Painters in Guelph122 ranked
- Landscapers in Guelph148 ranked
- Handymen in Guelph46 ranked
- Kitchen remodelers in Guelph314 ranked
- Bathroom remodelers in Guelph243 ranked
- Flooring contractors in Guelph158 ranked
- Tile installers in Guelph46 ranked
- Drywall contractors in Guelph16 ranked
- Concrete contractors in Guelph173 ranked
- Fence contractors in Guelph131 ranked
- Deck builders in Guelph140 ranked
- Siding contractors in Guelph227 ranked
- Window installers in Guelph350 ranked
- Gutter installers in Guelph70 ranked
- Insulation contractors in Guelph39 ranked
- Solar installers in Guelph62 ranked
- Garage door repair companies in Guelph55 ranked
- Foundation repair companies in Guelph264 ranked
- Tree services in Guelph99 ranked
- Masonry contractors in Guelph82 ranked
- Water damage restoration companies in Guelph360 ranked
- Home builders in Guelph594 ranked
- Demolition contractors in Guelph41 ranked
- All contractors in Guelph