Best home additions & second storeys contractors in the Greater Toronto Area

★★★★★4.8 (52 reviews)score 87/100

ALBO Renovations runs design-build projects from concept through finishes, and second-storey additions sit alongside full-home gutts and kitchen and basement work in its portfolio. Reviewers report seven-month timelines held reliably with no mention of delays or cost overruns, which matters most on a project this disruptive.

• Design-build handles everything from concept to completion under one roof
• Named crew (Vlad, Ivan) get repeat praise for knowledge and professionalism
• Timelines reported as met, not just promised
• Handles full-scope work: structural additions plus finishes in one engagement

Watch out: Review volume is solid but still under 60, so the track record, while strong, is based on a smaller sample than some competitors.

Google-verified52 Google reviewsover 15 years

Services: kitchen renovation, bathroom renovation, basement renovation, home additions

★★★★★5 (51 reviews)score 89/100

Kristal Renovations pairs a perfect 5.0 rating with genuine structural capability, including load-bearing wall removal, which is directly relevant when a second storey changes what the ground floor needs to support. Daily updates and punctual job starts show up repeatedly in reviews, even when supply delays put pressure on the schedule.

• Load-bearing wall removal and structural expertise, not just cosmetic work
• Punctual job starts and on-schedule finishes despite reported supply delays
• Named crew (Boris, Rustem, Joe, Eliza, Mariusz, Damians) with consistent praise
• Daily communication and upfront plan explanations

Google-verified51 Google reviews25+ years

Services: kitchen renovation, bathroom renovation, tile contractor, dry wall contractor

★★★★★4.9 (169 reviews)score 84/100

Sky Home Renovation has by far the most reviews on this list at 169, giving its 4.9 rating real statistical weight, and Rajbir (Raj) is repeatedly named as a hands-on owner-operator across basement and kitchen projects. One detailed complaint about a code violation on a dry vent installation, discovered later during a chimney cleaning, is worth reading before you sign, but it sits against a much larger volume of positive, specific feedback.

• Largest review base on this list (169 reviews) at a 4.9 average
• Raj and Honey named repeatedly as dependable, hands-on managers
• Strong reputation for legal basement finishing and design work
• Responsive to emergency water damage and remediation

Watch out: One detailed review describes a code violation (flex pipe instead of hard pipe) that required costly wall removal to fix, with reportedly poor follow-up communication afterward.

Google-verified169 Google reviews15 years

Services: kitchen renovation, home additions, emergency repair, interior designer

★★★★★4.8 (28 reviews)score 81/100

Toronto Home Repairs earns its place on speed and consistency: Dil and his team are reported responding to jobs in under two hours in some cases, and the work covers everything from light fixture repairs up to full kitchen renovations. It's a smaller review base than the top names here, but the sentiment across 27 of 28 reviews is uniformly positive.

• Fast response times, including same-day and under-2-hour reports
• Two-person team (Dil and Akil) with a consistent, traceable track record
• Thorough site cleanup and fair pricing noted repeatedly
• Owner directly involved on jobs rather than delegating entirely

Watch out: One reviewer reported being ghosted after requesting a quote, an outlier against otherwise strong communication feedback.

Google-verified28 Google reviews

Services: emergency repair, water damage restoration service, drainage service, waterproofing service

★★★★★5 (21 reviews)score 80/100

Nomarc Design and Renovation has a spotless five-star record stretching back five years, with Sevan and named team members Bulent and Hikmet leading projects that range from basement conversions to full-home renovations. In-house design and 3D visualization is a genuine differentiator for anyone trying to picture a second storey before committing to it.

• 100% five-star reviews sustained over five years
• In-house design with 3D visualization for planning ahead
• On-time and on-budget delivery reported consistently
• Clean, organized worksites noted across reviews

Watch out: Review volume is the lowest on this list at 21, so the perfect record, while genuine, covers a smaller sample.

Google-verified21 Google reviews

Services: interior designer, kitchen renovation, flooring contractor, interior construction contractor

★★★★★4.8 (25 reviews)score 78/100

ACTO RENOVATION Inc. holds a steady 4.8 rating across 25 reviews, giving it a solid if less detailed footing among GTA renovation specialists. It earns its place on rating consistency and volume rather than a deep sentiment read, so it's worth pairing with a direct conversation about second-storey experience specifically.

• Consistent 4.8 rating across 25 reviews
• Recency score is strong, meaning reviews are current

Watch out: A detailed sentiment breakdown wasn't available for this business, so pros here lean on rating and volume rather than specific project feedback.

Google-verified25 Google reviewssince 2014

Services: custom carpentry finishing, interior designer, flooring contractor, interior construction contractor