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Best Computer Repair Shops in Thorold, ON (2026)

63 computer repair shops ranked by IFR ScoreUpdated 0 paid placements in this rankingHow we rank →

The short answer

  1. 1

    Best overall in Thorold: Mobile Klinik, IFR Score 68/100; 4.7★ from 780 Google reviews; open 7 days a week.

  2. 2

    Most-reviewed: JTG Systems - Computer Repair - Laptop Repair, 1,199 Google reviews at 4.9★, the most of 63 ranked; ranked #2.

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

63 Thorold computer repair shops are ranked here by IFR Score, from nine published factors. 42 open Saturdays and 26 open Sundays, based on posted hours. The median Google rating is 4.9★ across 63 rated IT firms.

Top 10 computer repair shops in Thorold at a glance

Ranked by IFR Score from public data. Sponsored placements are labelled and never change the order.

Top 10 computer repair shops in Thorold at a glance
RankBusinessIFR ScoreGoogle ratingBased inHoursBest for
1Mobile Klinik684.7★ (780)St. Catharines, 3 km awaySat · Sun · EveningsOverall
2JTG Systems - Computer Repair - Laptop Repair684.9★ (1,199)Welland, 15 km awaySat · Sun · EveningsMost reviews
3EZ PC644.9★ (158)Welland, 13 km awaySat · Sun · Evenings—
4SLP Computer Repairs644.8★ (180)St. Catharines, 6 km awaySat · Sun · Evenings—
5Brett The Tech634.9★ (204)Niagara Falls, 8 km awaySat—
6ThrifTech624.9★ (91)ThoroldSat—
7Cyberdyne Systems624.7★ (183)Niagara Falls, 8 km awaySat—
8Romtek on-site Computer support614.9★ (52)Niagara Falls, 6 km awaySat · Sun · Evenings—
9Geeko Computer Systems614.8★ (122)St. Catharines, 6 km awaySat—
10Scott E Muma Computer Repairs615.0★ (28)St. Catharines, 9 km awaySat · Sun · Evenings—

The 63 best computer repair shops in Thorold, ranked

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

Ranked by IFR Score from public data. Sponsored placements are labelled and never change the order.

Scores below: based on 8 of 9 factors; recency not yet collected. Hatched segments mark factors we don't have yet.

  1. Ranked #1 in Thorold

    Based in St. Catharines, 3 km away

    68/100IFR Score

    Ranked #1 because of its Google rating and service focus: 4.7★ from 780 Google reviews, listed on Google as “Computer repair service”.

    • 4.7★ from 780 Google reviews
    Hours
    Mon–Fri 10 AM–9 PM · Sat 10 AM–6 PM · Sun 11 AM–5 PM
    Address
    The Pen Centre, 221 Glendale Ave, St. Catharines, ON L2T 2K9
  2. Based in Welland, 13 km away

    64/100IFR Score

    Ranked #3 because of its Google rating and service focus: 4.9★ from 158 Google reviews, listed on Google as “Computer repair service”.

    • 4.9★ from 158 Google reviews
    Hours
    Mon–Sun 12 AM–12 AM
    Address
    38 Trent Ave, Welland, ON L3C 0E1
  3. Based in St. Catharines, 6 km away

    64/100IFR Score

    Ranked #4 because of its Google rating and service focus: 4.8★ from 180 Google reviews, listed on Google as “Computer repair service”.

    • 4.8★ from 180 Google reviews
    Hours
    Mon–Sun 12 PM–7 PM
    Address
    154 Welland Ave, St. Catharines, ON L2R 2N6
  4. Based in Niagara Falls, 8 km away

    63/100IFR Score

    Ranked #5 because of its Google rating and service focus: 4.9★ from 204 Google reviews, listed on Google as “Computer repair service”.

    • 4.9★ from 204 Google reviews
    Hours
    Mon–Wed 10 AM–6 PM · Thu 9 AM–3 PM · Fri 10 AM–6 PM · Sat 9 AM–3 PM · Sun closed
    Address
    4300 Drummond Rd Unit 205 (Upstairs, Niagara Falls, ON L2E 6C3, Canada
  5. Based in Thorold

    62/100IFR Score

    Ranked #6 because of its Google rating and service focus: 4.9★ from 91 Google reviews, listed on Google as “Computer repair service”.

    • 4.9★ from 91 Google reviews
    Hours
    Mon–Thu 10 AM–6 PM · Fri 10 AM–1 PM · Sat 12 PM–5 PM · Sun closed
    Address
    Side Entrance (Next to Shell, 145 Hwy 20 E, Fonthill, ON L0S 1E3
  6. Based in Niagara Falls, 8 km away

    62/100IFR Score

    Ranked #7 because of its Google rating and service focus: 4.7★ from 183 Google reviews, listed on Google as “Computer repair service”.

    • 4.7★ from 183 Google reviews
    Hours
    Mon–Fri 10 AM–6 PM · Sat 12 PM–6 PM · Sun closed
    Address
    3475 Portage Rd, Niagara Falls, ON L2J 2K5, Canada
  7. Based in St. Catharines, 6 km away

    61/100IFR Score

    Ranked #9 because of its Google rating and service focus: 4.8★ from 122 Google reviews, listed on Google as “Computer repair service”.

    • 4.8★ from 122 Google reviews
    Hours
    Mon–Fri 10 AM–6 PM · Sat 10 AM–2 PM · Sun closed
    Address
    111 Welland Ave, St. Catharines, ON L2R 2N4
  8. Based in Niagara Falls, 9 km away

    61/100IFR Score

    Ranked #11 because of its Google rating and service focus: 5.0★ from 52 Google reviews, listed on Google as “Computer repair service”.

    • 5.0★ from 52 Google reviews
    Hours
    Mon–Wed 7 PM–10 PM · Thu–Fri 9 AM–9 PM · Sat–Sun 7 PM–10 PM
    Address
    6871 Hagar Ave, Niagara Falls, ON L2G 5M6
  9. Based in Welland, 15 km away

    60/100IFR Score

    Ranked #12 because of its Google rating and service focus: 5.0★ from 59 Google reviews, listed on Google as “Computer repair service”.

    • 5.0★ from 59 Google reviews
    Hours
    Mon–Sun 8 AM–8 PM
    Address
    231 Denistoun St, Welland, ON L3C 1V8
  10. Based in Niagara Falls, 8 km away

    60/100IFR Score

    Ranked #13 because of its Google rating and review volume: 5.0★ from 767 Google reviews.

    • 5.0★ from 767 Google reviews
    Hours
    Mon–Sun 7 AM–10 PM
    Address
    7853 Butternut Blvd, Niagara Falls, ON L2H 0N3, Canada
  11. Based in St. Catharines, 8 km away

    60/100IFR Score

    Ranked #15 because of its Google rating and service focus: 4.3★ from 171 Google reviews, listed on Google as “Computer repair service”.

    • 4.3★ from 171 Google reviews
    Hours
    Mon–Fri 10 AM–6:30 PM · Sat 10 AM–2 PM · Sun closed
    Address
    Same Plaza as Subway & Freshco, 318 Ontario St #2B, St. Catharines, ON L2R 5L8
  12. Based in Niagara Falls, 7 km away

    59/100IFR Score

    Ranked #16 because of its Google rating and service focus: 4.9★ from 104 Google reviews, listed on Google as “Computer repair service”.

    • 4.9★ from 104 Google reviews
    Hours
    Mon–Fri 12 PM–5 PM · Sat–Sun closed
    Address
    4025 Dorchester Rd Unit A12, Niagara Falls, ON L2E 7K8, Canada
  13. Based in Thorold

    59/100IFR Score

    Ranked #17 because of its Google rating and service focus: 5.0★ from 14 Google reviews, listed on Google as “Computer repair service”.

    • 5.0★ from 14 Google reviews
    Hours
    Mon–Sun 9 AM–6 PM
    Address
    123 Mackan St, Thorold, ON L2V 1G5
  14. Based in St. Catharines, 6 km away

    59/100IFR Score

    Ranked #18 because of its Google rating and service focus: 4.3★ from 102 Google reviews, listed on Google as “Computer repair service”.

    • 4.3★ from 102 Google reviews
    Hours
    Mon–Fri 9 AM–5:30 PM · Sat 10 AM–3 PM · Sun closed
    Address
    203 Louth St, St. Catharines, ON L2S 2R4
  15. Based in Welland, 13 km away

    59/100IFR Score

    Ranked #19 because of its Google rating and service focus: 4.6★ from 89 Google reviews, listed on Google as “Computer repair service”.

    • 4.6★ from 89 Google reviews
    Hours
    Mon–Tue 10 AM–6 PM · Wed 2 PM–6 PM · Thu–Fri 10 AM–6 PM · Sat 10 AM–2 PM · Sun closed
    Address
    140 Thorold Rd, Welland, ON L3C 3V4
  16. Based in Welland, 13 km away

    58/100IFR Score

    Ranked #22 because of its Google rating and service focus: 5.0★ from 35 Google reviews, listed on Google as “Computer repair service”.

    • 5.0★ from 35 Google reviews
    Hours
    Mon–Thu 10 AM–6 PM · Fri 10 AM–1 PM · Sat 12 PM–5 PM · Sun closed
    Address
    577 Niagara St, Welland, ON L3C 1L9
  17. Based in St. Catharines, 8 km away

    57/100IFR Score

    Ranked #23 because of its Google rating and review volume: 4.8★ from 370 Google reviews.

    • 4.8★ from 370 Google reviews
    Hours
    Mon–Fri 10 AM–9 PM · Sat 10 AM–6 PM · Sun 11 AM–6 PM
    Address
    Fairview Mall, 285 Geneva St, St. Catharines, ON L2N 2G2
  18. Based in Welland, 12 km away

    57/100IFR Score

    Ranked #25 because of its Google rating and review volume: 4.6★ from 604 Google reviews.

    • 4.6★ from 604 Google reviews
    Hours
    Mon–Fri 10 AM–8 PM · Sat 10 AM–5 PM · Sun 11 AM–5 PM
    Address
    Seaway Mall, 800 Niagara St Unit K8, Welland, ON L3C 5Z4

Computer repair shops ranked #26 to #50

#1 to #25 are shown in full above. Here are #26 to #50, in IFR Score order; each links to its profile. We publish the top 50 of 63 ranked computer repair shops here; the rest are on their profiles.

computer repair shops in Thorold, ranks 26 to 50
RankBusinessIFR ScoreGoogle ratingDistance
26Niagara Custom PC & Repair574.6★ (9)5 km
27Wifi Accessories564.8★ (264)8 km
28CZONE Computer and Game Console Repair564.8★ (144)28 km
29ByteWagon565.0★ (3)5 km
30Shane's Computer Service564.8★ (49)31 km
31Peace Computer Repairs565.0★ (15)7 km
32Wifi Accessories565.0★ (176)10 km
33Optimist Computer Sales and service (MSP)565.0★ (6)8 km
34Jump+ | Apple Premium Partner553.9★ (910)3 km
35Grand Island Computer Repair555.0★ (20)22 km
36PDC Computers545.0★ (11)25 km
37Jen Tech542.6★ (5)In Thorold
38Skycomp Solutions Inc.544.9★ (248)6 km
39DF Computer Centre544.5★ (270)6 km
40The Computer Edge544.9★ (50)30 km
41Get IT Easier545.0★ (4)9 km
42Jc Gilmour543.5★ (4)13 km
43Solid State IT545.0★ (6)11 km
44Niagara Warehouse of Hope544.4★ (24)12 km
45Universal Services Computer Repair534.3★ (23)18 km
46WNY Tech Solutions534.6★ (21)32 km
47On Off Computers535.0★ (3)11 km
48Micro Tech Niagara Inc525.0★ (5)9 km
49Intro Security524.3★ (3)4 km
50AllTECH Computer & Tech Solutions525.0★ (8)28 km

Also serving Thorold

20 more computer repair shops within 32 km that we can't rank yet: too few reviews, or a service we couldn't confirm. Listed A to Z.

Unranked computer repair shops serving Thorold
BusinessGoogle ratingDistance
Amherst Ken-Ton PC Repair5.0★ (2)30 km
B4 Networks Inc. - Niagara Region IT Services5.0★ (83)In Thorold
BizNet Computer Integration Inc5.0★ (2)8 km
Carr's Computers5.0★ (2)4 km
Cleverly Named Solutions5.0★ (2)17 km
Compu-Tech3.0★ (2)31 km
Compuniagara - Computer Support & Network Security | Web DesignIn Thorold
Cyber-V IT SolutionIn Thorold
Heribyte TechnologiesIn Thorold
HgriwebIn Thorold
Jones PC5.0★ (2)9 km
MediaVice Machine & Web5.0★ (2)13 km
Next Door Computer Services3.0★ (1)5 km
NiagaraTechValleyIn Thorold
Northline Technologies | Managed IT Services5.0★ (1)In Thorold
NorthPoint TechnologyIn Thorold
Onsite Computer Repair3.0★ (2)13 km
Simrat home canadaIn Thorold
Steve The Geek2.0★ (1)In Thorold
TechiesOnCall.caIn Thorold

How we ranked Thorold computer repair shops

We scored 63 Thorold computer repair shops on nine factors, weighted as shown. An IT firm is ranked when its service is confirmed and it has 3 or more Google reviews or a claimed profile. An IT firm 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 November 9, 2026.

Paid placement never changes a rank or score. Sponsored businesses are paid, labelled, limited to 3 and shown above the ranking, outside it.

Read the full method: formula, sources and exclusions

IFR Score factors and weights
FactorWeightComputed fromIn Thorold data
Reputation25%Google star rating, adjusted for how many reviews back itMeasured
Review volume15%Number of Google reviews, compared with the most-reviewed IT firm on the listMeasured
Recency10%Share of reviews from the last 12 monthsNot yet collected
Availability5%Weekly open hours, Saturday, Sunday and 24/7 supportMeasured
Service focus15%How clearly the firm does this service (its Google category and name)Measured
Proximity5%Based in the city scores highest, less the farther away it isMeasured
Claimed profile10%The firm has claimed its IT Firms Ranked profile (free or paid earn the same)Measured
Partnered5%The firm links to IT Firms Ranked from its own website with our badge, checked periodicallyMeasured
Client reviews10%Verified client reviews collected by IT Firms Ranked: their rating and how many there areMeasured

How to choose a computer repair shop

  1. Ask for a written estimate and approve any extra work before it is done.
  2. Ask whether they come on site and whether they work on business systems as well as home computers.
  3. Check the warranty on parts and labour.
  4. Ask for two or three references from clients of your size and industry, and call them.
  5. Get the scope, response times and price in writing before you sign, including how you leave and get your data back.

Questions to ask a computer repair shop

  • Is the diagnosis free, and how much is the estimate likely to change?
  • Do you back up our data before the repair?
  • Do you offer on-site visits for businesses?
  • What warranty do you give on parts and labour?
  • How long will the repair take?

Terms explained

MSP (managed service provider)
A firm that runs a business’s IT for a recurring fee: monitoring, patching, help desk, backups and security tools.
Co-managed IT
An arrangement where an outside firm supports an in-house IT person or team, sharing tools and tasks.
Break-fix
IT support paid per incident or per hour, with no monthly agreement.
SLA (service-level agreement)
The contract terms for response and resolution times, uptime and support hours.
Help desk
The support line staff call or email for IT problems.
RMM
Remote monitoring and management software that lets an IT firm watch, patch and fix computers remotely.
vCIO
A virtual chief information officer: part-time IT strategy and budgeting from an outside firm.
MSSP
A managed security service provider: a firm that monitors and manages security tools around the clock.
EDR / MDR
Endpoint detection and response software, and the managed service of people watching its alerts (managed detection and response).
MFA
Multi-factor authentication: a second proof of identity, such as an app prompt, on top of a password.
Penetration test
An authorised, simulated attack on your systems to find weaknesses before criminals do.
SOC 2
An independent auditor’s report (AICPA standard) on a service provider’s security controls.

Computer repair shops in Thorold: frequently asked questions

Who is the best computer repair shop in Thorold?

By IFR Score, the highest-ranked computer repair shop in Thorold, ON is Mobile Klinik with an IFR Score of 68/100. It has 4.7★ from 780 Google reviews. It is open 7 days a week. JTG Systems - Computer Repair - Laptop Repair (#2) and EZ PC (#3) follow. We ranked 63 computer repair shops on nine factors, last updated November 9, 2026.

How many computer repair shops are there in Thorold?

ITFirmsRanked ranks 63 computer repair shops serving Thorold, ON. 3 of them are based in Thorold; the rest serve it from nearby towns. Another 20 within 32 km are listed but not ranked yet. Counts are as of November 2026.

Which computer repair shops in Thorold work on weekends?

42 of 63 ranked computer repair shops post Saturday hours and 26 post Sunday hours. The highest-ranked open Saturdays are Mobile Klinik (#1), JTG Systems - Computer Repair - Laptop Repair (#2) and EZ PC (#3). Posted hours are office hours; many firms also run an after-hours support line for contract clients.

What Google rating do Thorold computer repair shops have?

The median Google rating among 63 rated computer repair shops in Thorold is 4.9★, with a median of 50 reviews. JTG Systems - Computer Repair - Laptop Repair has the most, 1,199 reviews, and ranks #2. We adjust ratings for review count, so a few five-star reviews cannot top the list.

How does ITFirmsRanked rank computer repair shops?

Each computer repair shop gets a 0–100 IFR Score from nine published factors, led by reputation (25%), review volume (15%), service focus (15%) and recency (10%). An IT firm with no Google reviews scores zero on rating, review volume and recency; other factors we cannot measure are left out. Only IT firms with a confirmed service and 3 or more reviews, or a claimed profile, are ranked.

Do computer repair shops outside Thorold count in this ranking?

Yes, if they are within 32 km of the Thorold city centre, our service radius for computer repair shops. Each listing shows where the IT firm is based and how far away it is. Proximity is 5% of the IFR Score, so a nearby IT firm gets a small edge.

Can computer repair shops pay to rank higher on ITFirmsRanked?

No. The IFR Score never reads payment status, and this ranking has 0 paid placements. Up to 3 Featured IT firms may appear above the list, labelled Sponsored and showing their honest rank.

What does a computer repair shop do?

Computer repair shops fix desktops, laptops and printers in store or on site: hardware repairs, upgrades, virus removal and setup. Many serve small offices as well as households.

How are computer repair shops in Thorold ranked?

By IFR Score: Google rating and review volume, recent reviews, opening hours, how clearly the firm does computer repair, distance, a claimed profile, our badge and verified client reviews. Sponsored placements never change the order.

Should a business use a computer repair shop or an IT provider?

A repair shop suits one-off fixes on a few computers. Once you rely on shared files, email, backups and security across several staff, an IT provider with a support agreement usually works out better.

Should we back up before a repair?

Yes, if the computer still starts. Repairs can involve replacing drives or reinstalling the system. Ask the shop whether it backs up data first and what it charges.

Update log for Thorold

  1. November 2026: IFR Scores recalculated for 63 computer repair shops serving Thorold.