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ContractorsRanked

Best General Contractors in Ottawa, ON (2026)

311 general contractors ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →

The short answer

  1. 1

    Best overall in Ottawa: Magnolia Design & Build, CR Score 63/100; 4.8★ from 117 Google reviews; open 24/7.

  2. 4

    Best for emergencies (open 24/7): Fix Now Inc., posts 24/7 hours; ranked #4 of 311.

  3. 3

    Most-reviewed: Ottawa Precision Eavestroughing, 534 Google reviews at 4.9★, the most of 311 ranked; ranked #3.

Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank

311 Ottawa general contractors are ranked here by CR Score, from ten published factors. 34 are open 24/7, 154 open Saturdays and 78 open Sundays, based on posted hours. The median Google rating is 5.0★ across 311 rated businesses.

Top 10 general contractors in Ottawa at a glance

Top 10 general contractors in Ottawa at a glance
RankBusinessCR ScoreGoogle ratingBased inHoursBest for
1Magnolia Design & Build634.8★ (117)Ottawa24/7Overall
2Vanguard Contracting Ottawa635.0★ (80)OttawaSat · Sun · Evenings—
3Ottawa Precision Eavestroughing634.9★ (534)Ottawa—Most reviews
4Fix Now Inc.635.0★ (33)Ottawa24/7Emergencies
5Roj building635.0★ (33)Ottawa24/7—
6Ottawa Lawn, Parging and Snow635.0★ (34)Ottawa24/7—
7Ottawa Parging Group624.9★ (169)OttawaSat—
8Max's Drywall inc624.7★ (104)OttawaSat · Sun · Evenings—
9Greenlight Renovation624.7★ (40)Ottawa24/7—
10Ottawa Renovation Specialists625.0★ (25)Ottawa24/7—

The 311 best general contractors in Ottawa, ranked

Ordered by CR Score, a 0–100 score from ten published factors. Paid placement never changes the order.

Scores below: based on 8 of 10 factors; credentials and recency not yet collected. Hatched segments mark factors we don't have yet.

  4. #4 Fix Now Inc.

    Based in Ottawa

    63/100CR Score

    Ranked #4 because of its Google rating and trade focus: 5.0★ from 33 Google reviews, listed on Google as “General contractor”.

    • 5.0★ from 33 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    1325 Alness Ct, Ottawa, ON K1B 5H2
    View profile for Fix Now Inc.(613) 898-9663

  5. #5 Roj building

    Based in Ottawa

    63/100CR Score

    Ranked #5 because of its Google rating and trade focus: 5.0★ from 33 Google reviews, listed on Google as “Construction company”.

    • 5.0★ from 33 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    465 Mutual St, Ottawa, ON K1K 1C7
    View profile for Roj building(343) 254-0449

  7. #7 Ottawa Parging Group

    Based in Ottawa

    62/100CR Score

    Ranked #7 because of its Google rating and trade focus: 4.9★ from 169 Google reviews, listed on Google as “Construction company”.

    • 4.9★ from 169 Google reviews
    Hours
    Mon–Fri 8 AM–5 PM · Sat 8 AM–3 PM · Sun closed
    Address
    53 Salamander Wy, Ottawa, ON K1X 0E9
    View profile for Ottawa Parging Group(613) 890-2010

  8. #8 Max's Drywall inc

    Based in Ottawa

    62/100CR Score

    Ranked #8 because of its Google rating and trade focus: 4.7★ from 104 Google reviews, listed on Google as “General contractor”.

    • 4.7★ from 104 Google reviews
    Hours
    Mon 6 AM–11:30 PM · Tue–Fri 7 AM–11:30 PM · Sat 9 AM–11:30 PM · Sun 9 AM–5 PM
    Address
    2995 Albion Rd N, Ottawa, ON K1V 9V9
    View profile for Max's Drywall inc(613) 879-6332

  12. #12 Opvion Construction

    Based in Ottawa

    61/100CR Score

    Ranked #12 because of its Google rating and trade focus: 5.0★ from 19 Google reviews, listed on Google as “Construction company”.

    • 5.0★ from 19 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    2200 Thurston Dr, Ottawa, ON K1G 6E1
    View profile for Opvion Construction(613) 402-9888

  14. #14 Capital Renovation

    Based in Ottawa

    61/100CR Score

    Ranked #14 because of its Google rating and trade focus: 4.9★ from 39 Google reviews, listed on Google as “Construction company”.

    • 4.9★ from 39 Google reviews
    Hours
    Mon–Fri 7 AM–8 PM · Sat–Sun 9 AM–5 PM
    Address
    1580 Merivale Rd Unit 504, Ottawa, ON K2G 4B5
    View profile for Capital Renovation(613) 301-0954

  23. #23 Abykael Construction

    Based in Clarence-Rockland, 32 km away

    60/100CR Score

    Ranked #23 because of its Google rating and trade focus: 4.9★ from 117 Google reviews, listed on Google as “Construction company”.

    • 4.9★ from 117 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    53 Chemin des Cantonniers, Gatineau, Quebec J8L 0Z9
    View profile for Abykael Construction(819) 209-6999

  25. #25 Timeless Reno's

    Based in Ottawa

    60/100CR Score

    Ranked #25 because of its Google rating and trade focus: 5.0★ from 8 Google reviews, listed on Google as “General contractor”.

    • 5.0★ from 8 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    1550 Michael St, Ottawa, ON K1B 3S3
    View profile for Timeless Reno's(613) 914-7474

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 311 ranked general contractors here; the rest are on their profiles.

general contractors in Ottawa, ranks 26 to 50
RankBusinessCR ScoreGoogle ratingDistance
26Spray-Net Gatineau605.0★ (100)24 km
27RenoMotion Inc.605.0★ (18)In Ottawa
28Perfect Work Done Inc.605.0★ (39)In Ottawa
29Brady's Quality Inc.603.8★ (32)In Ottawa
30Kadri Construction595.0★ (33)In Ottawa
31MDK Renovations - Kitchen, Bathroom, and Basement Specialists in Ottawa595.0★ (15)In Ottawa
32Dream Living Construction595.0★ (15)In Ottawa
33Green Valley Construction595.0★ (12)8 km
34Prevail General Construction INC.595.0★ (29)20 km
35Ottawa Deer Reno construction595.0★ (21)5 km
36Jones Bros Construction Inc595.0★ (12)In Ottawa
37Noon's Touch594.8★ (22)17 km
38CEDAR ACQUISITION AND CONSTRUCTION INC.595.0★ (5)In Ottawa
39Austrian D & C - Design and Construction594.4★ (20)In Ottawa
40Golden Gate Construction595.0★ (12)In Ottawa
41Lifetime Eavestroughing Ottawa594.8★ (63)20 km
42SQ Contracting595.0★ (10)In Ottawa
43Fondation Pro-Tech585.0★ (11)12 km
44oncallcity ondemand585.0★ (4)In Ottawa
45Elite Craft Renovations585.0★ (16)In Ottawa
46Floyd Construction585.0★ (16)20 km
47Solemn Oath Contracting585.0★ (15)19 km
48Newfoundlandscape Design & Construction Inc.574.9★ (58)15 km
49Ottawa Precision Cutting and Coring575.0★ (17)26 km
50LaBader Construction & Home Renovation575.0★ (7)19 km

Also serving Ottawa

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.

Unranked general contractors serving Ottawa
BusinessGoogle ratingDistance
AMA United Company5.0★ (163)In Ottawa
Black Tar Construction4.6★ (521)In Ottawa
Campbell Electrical Contracting Inc5.0★ (176)In Ottawa
Canada Plumbing5.0★ (177)In Ottawa
Cody Building Services4.8★ (185)In Ottawa
Deckify4.9★ (128)In Ottawa
Elie's Fencing Solutions4.7★ (156)In Ottawa
Empire Deck + Interlock4.5★ (167)In Ottawa
Homa4.9★ (245)In Ottawa
Insulation Ottawa - Jarrah Contracting Services4.9★ (121)In Ottawa
JD Swallow Heating & Cooling4.9★ (1,311)In Ottawa
Modern Eavestroughing Ottawa4.5★ (219)In Ottawa
Quiktop Counters4.6★ (121)In Ottawa
Rydel Roofing in Ottawa4.5★ (139)In Ottawa
Spray-Net4.9★ (123)In Ottawa
The Energy Centre4.2★ (146)In Ottawa
The TGi GROUP - MERIVALE (Quartz, Granite, Kitchen & Bath, Renovations, Real Estate Developments, Design, Construction)4.9★ (524)In Ottawa
True Beacon Solar5.0★ (157)In Ottawa
Westend Windows and Doors Ottawa4.9★ (131)In Ottawa
Wolfenburg Roofing4.9★ (260)In Ottawa

How much do general contractors cost in Ottawa?

US national ranges converted to CAD, not adjusted for Ottawa. Each row names its basis and the month we checked it.

How much do general contractors cost in Ottawa?
JobLowTypicalHighBasisChecked
Kitchen remodelCA$20,510CA$37,930CA$58,490Per 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 remodelCA$9,350CA$17,080CA$24,820Per 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 Ottawa general contractors

We scored 311 Ottawa general contractors on ten 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. A business with no Google reviews scores zero on rating, review volume and recency. Other unknown factors are left out, 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.

Read the full method: formula, sources and exclusions

CR Score factors and weights
FactorWeightComputed fromIn Ottawa data
Reputation25%Google star rating, adjusted for how many reviews back itMeasured
Credentials15%Active state license, bond and workers’ comp on fileNot yet collected
Review volume10%Number of Google reviews, compared with the most-reviewed business on the listMeasured
Recency5%Share of reviews from the last 12 monthsNot yet collected
Availability5%Weekly open hours, Saturday, Sunday, 24/7 or same-dayMeasured
Trade focus10%How clearly the business does this trade (its Google category and name)Measured
Proximity5%Based in the city scores highest, less the farther away it isMeasured
Claimed profile10%The business has claimed its ContractorsRanked profile (free or paid earn the same)Measured
Partnered5%The business links to ContractorsRanked from its own website with our badge, checked periodicallyMeasured
ContractorsRanked reviews10%Verified customer reviews collected by ContractorsRanked: their rating and how many there areMeasured

General contractors in Ottawa: frequently asked questions

Who is the best general contractor in Ottawa?

By CR Score, the highest-ranked general contractor in Ottawa, ON is Magnolia Design & Build with a CR Score of 63/100. It has 4.8★ from 117 Google reviews. It is open 24/7. Vanguard Contracting Ottawa (#2) and Ottawa Precision Eavestroughing (#3) follow. We ranked 311 general contractors on ten factors, last updated October 22, 2026.

How many general contractors are there in Ottawa?

ContractorsRanked ranks 311 general contractors serving Ottawa, ON. 37 of them are based in Ottawa; 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 Ottawa are open 24/7?

34 ranked general contractors in Ottawa post 24/7 hours. The highest-ranked are Magnolia Design & Build (#1), Fix Now Inc. (#4) and Roj building (#5). Hours come from each business's Google listing as of October 2026, so call to confirm.

Which general contractors in Ottawa work on weekends?

154 of 311 ranked general contractors post Saturday hours and 78 post Sunday hours. The highest-ranked open Saturdays are Magnolia Design & Build (#1), Vanguard Contracting Ottawa (#2) and Fix Now Inc. (#4). Posted hours are office hours; crews may book weekend jobs separately.

How much does kitchen remodel cost in Ottawa?

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 Ottawa. Prices were last checked October 2026. Get at least two written quotes before you hire.

What Google rating do Ottawa general contractors have?

The median Google rating among 311 rated general contractors in Ottawa is 5.0★, with a median of 12 reviews. Ottawa Precision Eavestroughing has the most, 534 reviews, and ranks #3. 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 ten published factors, led by reputation (25%), credentials (15%), review volume (10%) and trade focus (10%). A business with no Google reviews scores zero on rating, review volume and recency; other factors we cannot measure are left out. Only businesses with a confirmed trade and 3 or more reviews, or a claimed profile, are ranked.

Do general contractors outside Ottawa count in this ranking?

Yes, if they are within 40 km of the Ottawa 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 Ottawa

  1. October 2026: CR Scores recalculated for 311 general contractors serving Ottawa.
  2. October 2026: 2 duplicate listings merged.

More general contractors and Ottawa pages

Other trades in Ottawa