61/100IFR Score
Ranked #1 because of its Google rating and review volume: 4.7★ from 1,325 Google reviews, the most in Thunder Bay.
Based on 8 of 9 factors; recency not yet collected.
Best Computer Repair Shops in Thunder Bay, ON (2026)
9 computer repair shops ranked by IFR ScoreUpdated 0 paid placements in this rankingHow we rank →
The short answer
- 1
Best overall in Thunder Bay: Marnics Mobile, IFR Score 61/100; 4.7★ from 1,325 Google reviews; open 7 days a week.
- 4
Most-reviewed: ACO PC Medic, 64 Google reviews at 4.0★, the most of 9 ranked after Marnics Mobile; ranked #4.
Rankings can't be bought. IT providers can't pay to change their rank or score. How we rank
9 Thunder Bay computer repair shops are ranked here by IFR Score, from nine published factors. 2 open Saturdays and 1 open Sundays, based on posted hours. The median Google rating is 4.7★ across 9 rated IT firms.
Top 9 computer repair shops in Thunder Bay 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 | Marnics Mobile | 61 | 4.7★ (1,325) | Thunder Bay | Sat · Sun · Evenings | Overall |
| 2 | Protec-IT | 58 | 4.8★ (20) | Thunder Bay | Sat | — |
| 3 | RIMZ Technical Solutions | 57 | 5.0★ (30) | Thunder Bay | — | — |
| 4 | ACO PC Medic | 57 | 4.0★ (64) | Thunder Bay | — | Most reviews |
| 5 | Dunrite Services | 55 | 4.9★ (9) | Thunder Bay | — | — |
| 6 | Global Computer Maintenance | 54 | 5.0★ (3) | Thunder Bay | — | — |
| 7 | CCS Central Computer Services | 49 | 3.0★ (3) | Thunder Bay | — | — |
| 8 | ACO Computer and Electronic Solutions | 46 | 3.9★ (15) | Thunder Bay | — | — |
| 9 | Innovated Solutions | 45 | 4.0★ (7) | Thunder Bay | — | — |
The 9 best computer repair shops in Thunder Bay, 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.
#2 Protec-IT
Based in Thunder Bay
58/100IFR ScoreRanked #2 because of its Google rating and service focus: 4.8★ from 20 Google reviews, listed on Google as “Computer repair service”.
Based on 8 of 9 factors; recency not yet collected.
Based in Thunder Bay
57/100IFR ScoreRanked #3 because of its Google rating and service focus: 5.0★ from 30 Google reviews, listed on Google as “Computer repair service”.
Based on 8 of 9 factors; recency not yet collected.
#4 ACO PC Medic
Based in Thunder Bay
57/100IFR ScoreRanked #4 because of its Google rating and service focus: 4.0★ from 64 Google reviews, listed on Google as “Computer service”.
Based on 8 of 9 factors; recency not yet collected.
Based in Thunder Bay
55/100IFR ScoreRanked #5 because of its Google rating and service focus: 4.9★ from 9 Google reviews, listed on Google as “Computer service”.
Based on 8 of 9 factors; recency not yet collected.
Based in Thunder Bay
54/100IFR ScoreRanked #6 because of its Google rating and service focus: 5.0★ from 3 Google reviews, listed on Google as “Computer repair service”.
Based on 7 of 9 factors; recency and availability not yet collected.
Based in Thunder Bay
49/100IFR ScoreRanked #7 because of its Google rating and service focus: 3.0★ from 3 Google reviews, listed on Google as “Computer consultant”.
Based on 7 of 9 factors; recency and availability not yet collected.
Based in Thunder Bay
46/100IFR ScoreRanked #8 because of its Google rating and service focus: 3.9★ from 15 Google reviews, listed on Google as “Computer consultant”.
Based on 8 of 9 factors; recency not yet collected.
Based in Thunder Bay
45/100IFR ScoreRanked #9 because of its Google rating and service focus: 4.0★ from 7 Google reviews, listed on Google as “Computer support and services”.
Based on 8 of 9 factors; recency not yet collected.
How we ranked Thunder Bay computer repair shops
We scored 9 Thunder Bay 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 Thunder Bay 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 Thunder Bay: frequently asked questions
Who is the best computer repair shop in Thunder Bay?
By IFR Score, the highest-ranked computer repair shop in Thunder Bay, ON is Marnics Mobile with an IFR Score of 61/100. It has 4.7★ from 1,325 Google reviews. It is open 7 days a week. Protec-IT (#2) and RIMZ Technical Solutions (#3) follow. We ranked 9 computer repair shops on nine factors, last updated November 9, 2026.
How many computer repair shops are there in Thunder Bay?
ITFirmsRanked ranks 9 computer repair shops serving Thunder Bay, ON. 9 of them are based in Thunder Bay; the rest serve it from nearby towns. Counts are as of November 2026.
Which computer repair shops in Thunder Bay work on weekends?
2 of 9 ranked computer repair shops post Saturday hours and 1 post Sunday hours. The highest-ranked open Saturdays are Marnics Mobile (#1) and Protec-IT (#2). Posted hours are office hours; many firms also run an after-hours support line for contract clients.
What Google rating do Thunder Bay computer repair shops have?
The median Google rating among 9 rated computer repair shops in Thunder Bay is 4.7★, with a median of 15 reviews. Marnics Mobile has the most, 1,325 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 Thunder Bay count in this ranking?
Yes, if they are within 32 km of the Thunder Bay 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 Thunder Bay 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 Thunder Bay
- November 2026: IFR Scores recalculated for 9 computer repair shops serving Thunder Bay.