285 deck builders ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in Ajax: Flann Fence & Deck, CR Score 85/100; 4.8★ from 19 Google reviews; open 7 days a week.
Best for emergencies (open 24/7): Nice Deck, posts 24/7 hours; ranked #2 of 285.
Most-reviewed: Action Home Services, 327 Google reviews at 4.8★, the most of 285 ranked; ranked #6.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
285 Ajax deck builders are ranked here by CR Score, from 8 published factors. 21 are open 24/7, 205 open Saturdays and 117 open Sundays, based on posted hours. The median Google rating is 5.0★ across 285 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Flann Fence & Deck | 85 | 4.8★ (19) | Ajax | Sat · Sun · Evenings | Overall |
| 2 | Nice Deck | 85 | 5.0★ (26) | Richmond Hill, 32 km away | 24/7 | Emergencies |
| 3 | Mega Deck & Fence | 85 | 4.7★ (17) | Ajax | 24/7 | — |
| 4 | Golden Valley Decks | 85 | 5.0★ (39) | Markham, 19 km away | Sat · Sun · Evenings | — |
| 5 | Golden Valley Decks Richmond Hill | 84 | 5.0★ (22) | Richmond Hill, 33 km away | 24/7 | — |
| 6 | Action Home Services | 84 | 4.8★ (327) | Richmond Hill, 28 km away | 24/7 | Most reviews |
| 7 | Gray's Deck & Fence | 84 | 5.0★ (33) | Ajax | Sat · Evenings | — |
| 8 | DayJobs - Window Cleaning | 83 | 5.0★ (60) | Oshawa, 14 km away | 24/7 | — |
| 9 | Canadian Decks | 83 | 5.0★ (41) | Markham, 26 km away | — | — |
| 10 | Walia’s property maintenance | 83 | 5.0★ (69) | Markham, 19 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: 4.8★ from 19 Google reviews, listed on Google as “Deck builder”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Richmond Hill, 32 km away
Ranked #2 because of its Google rating and availability: 5.0★ from 26 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Ajax
Ranked #3 because of its Google rating and trade focus: 4.7★ from 17 Google reviews, listed on Google as “Deck builder”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Markham, 19 km away
Ranked #4 because of its Google rating and trade focus: 5.0★ from 39 Google reviews, listed on Google as “Deck builder”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Richmond Hill, 33 km away
Ranked #5 because of its Google rating and availability: 5.0★ from 22 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Richmond Hill, 28 km away
Ranked #6 because of its Google rating and availability: 4.8★ from 327 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Ajax
Ranked #7 because of its Google rating and trade focus: 5.0★ from 33 Google reviews, listed on Google as “Deck builder”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Oshawa, 14 km away
Ranked #8 because of its Google rating and availability: 5.0★ from 60 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Markham, 26 km away
Ranked #9 because of its Google rating and trade focus: 5.0★ from 41 Google reviews, listed on Google as “Deck builder”.
Based on 5 of 8 factors; credentials, recency and availability not yet collected.
Based in Markham, 19 km away
Ranked #10 because of its Google rating and availability: 5.0★ from 69 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Markham, 16 km away
Ranked #11 because of its Google rating and review volume: 4.8★ from 119 Google reviews, 119 Google reviews.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in East Gwillimbury, 26 km away
Ranked #12 because of its Google rating and review volume: 4.8★ from 271 Google reviews, 271 Google reviews.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in North York, 26 km away
Ranked #13 because of its Google rating and availability: 5.0★ from 97 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Pickering, 6 km away
Ranked #14 because of its Google rating and availability: 4.7★ from 47 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Concord, 37 km away
Ranked #15 because of its Google rating and trade focus: 5.0★ from 52 Google reviews, listed on Google as “Deck builder”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Uxbridge, 29 km away
Ranked #16 because of its Google rating and trade focus: 5.0★ from 30 Google reviews, listed on Google as “Deck builder”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Pickering, 13 km away
Ranked #17 because of its Google rating and availability: 4.9★ from 68 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Ajax
Ranked #18 because of its Google rating and trade focus: 5.0★ from 6 Google reviews, listed on Google as “Deck builder”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Ajax
Ranked #19 because of its Google rating and review volume: 4.7★ from 77 Google reviews, 77 Google reviews.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Mississauga, 18 km away
Ranked #20 because of its Google rating and review volume: 4.9★ from 127 Google reviews, 127 Google reviews.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Ajax
Ranked #21 because of its Google rating and trade focus: 5.0★ from 4 Google reviews, listed on Google as “Deck builder”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Vaughan, 38 km away
Ranked #22 because of its Google rating and trade focus: 5.0★ from 38 Google reviews, listed on Google as “Deck builder”.
Based on 5 of 8 factors; credentials, recency and availability not yet collected.
Based in Ajax
Ranked #23 because of its Google rating and review volume: 4.8★ from 216 Google reviews, 216 Google reviews.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Ajax
Ranked #24 because of its Google rating and availability: 5.0★ from 59 Google reviews, open 7 days a week.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Oshawa, 10 km away
Ranked #25 because of its Google rating and availability: 4.8★ from 23 Google reviews, open 24/7.
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 285 ranked deck builders here; the rest are on their profiles.
| Rank | Business | CR Score | Google rating | Distance |
|---|---|---|---|---|
| 26 | Seal Tech Inc | 81 | 5.0★ (22) | 13 km |
| 27 | Deck Builder Markham | 81 | 5.0★ (12) | 16 km |
| 28 | Paintify Ajax Painting | 81 | 5.0★ (32) | In Ajax |
| 29 | Brighterdayscontracting.com | 80 | 5.0★ (10) | 3 km |
| 30 | Dr. Decks & Fence, Repairs | 80 | 5.0★ (9) | 22 km |
| 31 | Ajax Deck Builder | 80 | 5.0★ (3) | In Ajax |
| 32 | Frontier PMC | 80 | 5.0★ (57) | 14 km |
| 33 | CANPRO 360 Inc. | 80 | 4.7★ (41) | In Ajax |
| 34 | Deck Builder East York | 80 | 5.0★ (20) | 29 km |
| 35 | DAP Contracting | 80 | 4.9★ (74) | 15 km |
| 36 | Custom Deck Builder Scarborough | 80 | 5.0★ (15) | 25 km |
| 37 | GTA Landscaping Toronto | 80 | 4.7★ (111) | 35 km |
| 38 | Deck Builder Brooklin | 80 | 5.0★ (6) | 13 km |
| 39 | Decksforlife | 80 | 5.0★ (25) | 22 km |
| 40 | Decksrus | 80 | 4.5★ (17) | 5 km |
| 41 | Affordable Deck and Fence | 80 | 4.7★ (44) | In Ajax |
| 42 | Hickory Dickory Decks Durham | 80 | 4.6★ (45) | In Ajax |
| 43 | Zand Group Deck Builder | 79 | 4.9★ (48) | 32 km |
| 44 | Deckoria | 79 | 5.0★ (5) | In Ajax |
| 45 | Deck Builder Thornhill | 79 | 5.0★ (17) | 33 km |
| 46 | Para-Loc Interlock and Landscape | 79 | 5.0★ (47) | 18 km |
| 47 | Otto Deck | 79 | 4.8★ (64) | 36 km |
| 48 | Axhorn Landscaping & Contracting | 79 | 5.0★ (39) | 16 km |
| 49 | Quality Restorations + Renovations Co Toronto | 79 | 4.9★ (7) | 27 km |
| 50 | Deck Builder Richmond Hill | 78 | 5.0★ (14) | 33 km |
20 more deck builders within 40 km that we can't rank yet: too few reviews, or a trade we couldn't confirm. Listed A to Z.
| Business | Google rating | Distance |
|---|---|---|
| APlus Home Design | 4.8★ (74) | In Ajax |
| AZAD Landscaping & Interlocking | 4.4★ (36) | In Ajax |
| Boss construction & Homes Ltd | 4.7★ (30) | In Ajax |
| Cavalry Renovations | 5.0★ (9) | In Ajax |
| CORNEROCK LANDSCAPE & CONSTRUCTION | 4.5★ (18) | In Ajax |
| Dream Construction Studio | 5.0★ (25) | In Ajax |
| Durham Region Roofing | 5.0★ (46) | In Ajax |
| EarthStone Landscaping | 5.0★ (35) | In Ajax |
| Esra Landscaping & Reno | 5.0★ (13) | In Ajax |
| Jajio Renovation Inc. | 4.9★ (32) | In Ajax |
| Jarvis Contracting Inc. | 5.0★ (24) | In Ajax |
| Laptiva | 4.4★ (12) | In Ajax |
| Manalco Contracting Ltd. | 4.2★ (26) | In Ajax |
| Ommert Renovations | 5.0★ (8) | In Ajax |
| PLATINUM PAINTWORKS PAINTING | 5.0★ (19) | In Ajax |
| Premier Custom Surfacing Inc | 4.7★ (31) | In Ajax |
| Premier Masonry Inc | 4.9★ (39) | In Ajax |
| RenoHero Construction | 5.0★ (7) | In Ajax |
| Ronald's Landscaping & Maintenance | 4.3★ (11) | In Ajax |
| Voyage Outdoor Solutions | 5.0★ (29) | In Ajax |
US national ranges converted to CAD, not adjusted for Ajax. Each row names its basis and the month we checked it.
| Job | Low | Typical | High | Basis | Checked |
|---|---|---|---|---|---|
| Deck building | CA$6,100 | CA$11,690 | CA$17,780 | Per deck: typical range of customer-reported projects. US national range converted at 1.4054 CAD per USD (Bank of Canada, October 20, 2026) | October 2026 |
We scored 285 Ajax deck builders 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 Ajax 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 |