65/100IFR Score
Ranked #1 because of its Google rating and review volume: 4.8★ from 1,313 Google reviews, the most in St. Thomas.
Based on 8 of 9 factors; recency not yet collected.
Best Computer Repair Shops in St. Thomas, ON (2026)
52 computer repair shops ranked by IFR ScoreUpdated 0 paid placements in this rankingHow we rank →
The short answer
- 1
Best overall in St. Thomas: Nerds On Site, IFR Score 65/100; 4.8★ from 1,313 Google reviews; open 7 days a week.
- 7
Most-reviewed: Forest City Computers, 1,221 Google reviews at 4.8★, the most of 52 ranked after Nerds On Site; ranked #7.
Rankings can't be bought. IT providers can't pay to change their rank or score. How we rank
52 St. Thomas computer repair shops are ranked here by IFR Score, from nine published factors. 37 open Saturdays and 24 open Sundays, based on posted hours. The median Google rating is 4.9★ across 52 rated IT firms.
Most of this list also appears on the Computer repair shops in London ranking. See Computer repair shops in London
Top 10 computer repair shops in St. Thomas at a glance
Ranked by IFR Score from public data. Sponsored placements are labelled and never change the order.
| Rank | Business | IFR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Nerds On Site | 65 | 4.8★ (1,313) | London, 26 km away | Sat · Sun · Evenings | Overall |
| 2 | Mobile Junction Inc | 65 | 4.9★ (827) | London, 25 km away | Sat · Sun · Evenings | — |
| 3 | The PC Repair Guy | 64 | 5.0★ (277) | London, 18 km away | Sat · Sun · Evenings | — |
| 4 | Phone Planet - Cell Phone Repair & Laptop Repair | 64 | 5.0★ (1,006) | London, 27 km away | Sat · Evenings | — |
| 5 | UniverCell | 64 | 4.8★ (569) | London, 25 km away | Sat · Sun · Evenings | — |
| 6 | ZT 4ever Tech | 63 | 5.0★ (210) | London, 17 km away | Sat · Sun · Evenings | — |
| 7 | Forest City Computers | 63 | 4.8★ (1,221) | London, 26 km away | Sat | Most reviews |
| 8 | Telze - London | 63 | 4.9★ (564) | London, 29 km away | Sat · Sun · Evenings | — |
| 9 | Smart Fix Repair Experts | 63 | 4.6★ (777) | London, 24 km away | Sat · Sun · Evenings | — |
| 10 | Mobile Klinik | 63 | 4.6★ (402) | London, 18 km away | Sat · Sun · Evenings | — |
The 52 best computer repair shops in St. Thomas, 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.
Based in London, 25 km away
65/100IFR ScoreRanked #2 because of its Google rating and service focus: 4.9★ from 827 Google reviews, listed on Google as “Computer repair service”.
Based on 8 of 9 factors; recency not yet collected.
Based in London, 18 km away
64/100IFR ScoreRanked #3 because of its Google rating and service focus: 5.0★ from 277 Google reviews, listed on Google as “Computer repair service”.
Based on 8 of 9 factors; recency not yet collected.
Based in London, 27 km away
64/100IFR ScoreRanked #4 because of its Google rating and service focus: 5.0★ from 1,006 Google reviews, listed on Google as “Computer repair service”.
Based on 8 of 9 factors; recency not yet collected.
#5 UniverCell
Based in London, 25 km away
64/100IFR ScoreRanked #5 because of its Google rating and service focus: 4.8★ from 569 Google reviews, listed on Google as “Computer repair service”.
Based on 8 of 9 factors; recency not yet collected.
Based in London, 17 km away
63/100IFR ScoreRanked #6 because of its Google rating and service focus: 5.0★ from 210 Google reviews, listed on Google as “Computer repair service”.
Based on 8 of 9 factors; recency not yet collected.
Based in London, 26 km away
63/100IFR ScoreRanked #7 because of its Google rating and service focus: 4.8★ from 1,221 Google reviews, listed on Google as “Computer repair service”.
Based on 8 of 9 factors; recency not yet collected.
Based in London, 29 km away
63/100IFR ScoreRanked #8 because of its Google rating and service focus: 4.9★ from 564 Google reviews, listed on Google as “Computer service”.
Based on 8 of 9 factors; recency not yet collected.
Based in London, 24 km away
63/100IFR ScoreRanked #9 because of its Google rating and service focus: 4.6★ from 777 Google reviews, listed on Google as “Computer repair service”.
Based on 8 of 9 factors; recency not yet collected.
#10 Mobile Klinik
Based in London, 18 km away
63/100IFR ScoreRanked #10 because of its Google rating and service focus: 4.6★ from 402 Google reviews, listed on Google as “Computer repair service”.
Based on 8 of 9 factors; recency not yet collected.
#11 UniverCell
Based in London, 21 km away
62/100IFR ScoreRanked #11 because of its Google rating and service focus: 4.8★ from 267 Google reviews, listed on Google as “Computer repair service”.
Based on 8 of 9 factors; recency not yet collected.
Based in London, 25 km away
62/100IFR ScoreRanked #12 because of its Google rating and service focus: 4.9★ from 308 Google reviews, listed on Google as “Computer repair service”.
Based on 8 of 9 factors; recency not yet collected.
#13 Mobile Klinik
Based in London, 29 km away
62/100IFR ScoreRanked #13 because of its Google rating and service focus: 4.6★ from 708 Google reviews, listed on Google as “Computer repair service”.
Based on 8 of 9 factors; recency not yet collected.
#14 Computer Guy
Based in St. Thomas
62/100IFR ScoreRanked #14 because of its Google rating and service focus: 4.8★ from 82 Google reviews, listed on Google as “Computer repair service”.
Based on 8 of 9 factors; recency not yet collected.
#15 Zerone
Based in London, 19 km away
62/100IFR ScoreRanked #15 because of its Google rating and service focus: 4.7★ from 224 Google reviews, listed on Google as “Computer repair service”.
Based on 8 of 9 factors; recency not yet collected.
Based in London, 26 km away
62/100IFR ScoreRanked #16 because of its Google rating and service focus: 4.8★ from 508 Google reviews, listed on Google as “Computer repair service”.
Based on 8 of 9 factors; recency not yet collected.
Based in London, 19 km away
60/100IFR ScoreRanked #17 because of its Google rating and service focus: 4.9★ from 170 Google reviews, listed on Google as “Computer repair service”.
Based on 8 of 9 factors; recency not yet collected.
Based in London, 23 km away
60/100IFR ScoreRanked #18 because of its Google rating and service focus: 4.9★ from 187 Google reviews, listed on Google as “Computer repair service”.
Based on 8 of 9 factors; recency not yet collected.
Based in London, 27 km away
60/100IFR ScoreRanked #19 because of its Google rating and service focus: 4.9★ from 260 Google reviews, listed on Google as “Computer repair service”.
Based on 8 of 9 factors; recency not yet collected.
#20 Mac Outpost
Based in London, 23 km away
60/100IFR ScoreRanked #20 because of its Google rating and service focus: 4.5★ from 476 Google reviews, listed on Google as “Computer repair service”.
Based on 8 of 9 factors; recency not yet collected.
#21 Nerd Medics
Based in St. Thomas
60/100IFR ScoreRanked #21 because of its Google rating and service focus: 5.0★ from 22 Google reviews, listed on Google as “Computer repair service”.
Based on 7 of 9 factors; recency and availability not yet collected.
#22 FASOFIX ON
Based in London, 24 km away
60/100IFR ScoreRanked #22 because of its Google rating and service focus: 4.7★ from 58 Google reviews, listed on Google as “Computer repair service”.
Based on 8 of 9 factors; recency not yet collected.
#23 Enders Direct
Based in London, 21 km away
60/100IFR ScoreRanked #23 because of its Google rating and service focus: 4.7★ from 196 Google reviews, listed on Google as “Computer repair service”.
Based on 8 of 9 factors; recency not yet collected.
Based in London, 25 km away
59/100IFR ScoreRanked #24 because of its Google rating and service focus: 4.8★ from 166 Google reviews, listed on Google as “Computer repair service”.
Based on 8 of 9 factors; recency not yet collected.
Based in London, 26 km away
59/100IFR ScoreRanked #25 because of its Google rating and service focus: 4.8★ from 86 Google reviews, listed on Google as “Computer repair service”.
Based on 8 of 9 factors; recency not yet collected.
How we ranked St. Thomas computer repair shops
We scored 52 St. Thomas 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.
| Factor | Weight | Computed from | In St. Thomas data |
|---|---|---|---|
| Reputation | 25% | Google star rating, adjusted for how many reviews back it | Measured |
| Review volume | 15% | Number of Google reviews, compared with the most-reviewed IT firm on the list | Measured |
| Recency | 10% | Share of reviews from the last 12 months | Not yet collected |
| Availability | 5% | Weekly open hours, Saturday, Sunday and 24/7 support | Measured |
| Service focus | 15% | How clearly the firm does this service (its Google category and name) | Measured |
| Proximity | 5% | Based in the city scores highest, less the farther away it is | Measured |
| Claimed profile | 10% | The firm has claimed its IT Firms Ranked profile (free or paid earn the same) | Measured |
| Partnered | 5% | The firm links to IT Firms Ranked from its own website with our badge, checked periodically | Measured |
| Client reviews | 10% | Verified client reviews collected by IT Firms Ranked: their rating and how many there are | Measured |
How to choose a computer repair shop
- Ask for a written estimate and approve any extra work before it is done.
- Ask whether they come on site and whether they work on business systems as well as home computers.
- Check the warranty on parts and labour.
- Ask for two or three references from clients of your size and industry, and call them.
- 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 St. Thomas: frequently asked questions
Who is the best computer repair shop in St. Thomas?
By IFR Score, the highest-ranked computer repair shop in St. Thomas, ON is Nerds On Site with an IFR Score of 65/100. It has 4.8★ from 1,313 Google reviews. It is open 7 days a week. Mobile Junction Inc (#2) and The PC Repair Guy (#3) follow. We ranked 52 computer repair shops on nine factors, last updated November 9, 2026.
How many computer repair shops are there in St. Thomas?
ITFirmsRanked ranks 52 computer repair shops serving St. Thomas, ON. 2 of them are based in St. Thomas; the rest serve it from nearby towns. Counts are as of November 2026.
Which computer repair shops in St. Thomas work on weekends?
37 of 52 ranked computer repair shops post Saturday hours and 24 post Sunday hours. The highest-ranked open Saturdays are Nerds On Site (#1), Mobile Junction Inc (#2) and The PC Repair Guy (#3). Posted hours are office hours; many firms also run an after-hours support line for contract clients.
What Google rating do St. Thomas computer repair shops have?
The median Google rating among 52 rated computer repair shops in St. Thomas is 4.9★, with a median of 84 reviews. Nerds On Site has the most, 1,313 reviews, and ranks #1. 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 St. Thomas count in this ranking?
Yes, if they are within 32 km of the St. Thomas 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 St. Thomas 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 St. Thomas
- November 2026: IFR Scores recalculated for 52 computer repair shops serving St. Thomas.
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