67/100IFR Score
Ranked #1 because of its Google rating and review volume: 5.0★ from 6,321 Google reviews, the most in Mundelein.
Based on 8 of 9 factors; recency not yet collected.
Best Computer Repair Shops in Mundelein, IL (2026)
136 computer repair shops ranked by IFR ScoreUpdated 0 paid placements in this rankingHow we rank →
The short answer
- 1
Best overall in Mundelein: IT Expert System, INC, IFR Score 67/100; 5.0★ from 6,321 Google reviews; open 7 days a week.
- 3
Most-reviewed: 911 Tech Repair - Cell Phone & Computer Repair - Crystal Lake, 814 Google reviews at 4.9★, the most of 136 ranked after IT Expert System, INC; ranked #3.
Rankings can't be bought. IT providers can't pay to change their rank or score. How we rank
136 Mundelein computer repair shops are ranked here by IFR Score, from nine published factors. 70 open Saturdays and 31 open Sundays, based on posted hours. The median Google rating is 4.9★ across 136 rated IT firms.
Top 10 computer repair shops in Mundelein 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 | IT Expert System, INC | 67 | 5.0★ (6,321) | Schaumburg, 15 mi away | Sat · Sun · Evenings | Overall |
| 2 | 911 Tech Repair - Cell Phone & Computer Repair - Grayslake | 62 | 4.8★ (586) | Grayslake, 5 mi away | Sat | — |
| 3 | 911 Tech Repair - Cell Phone & Computer Repair - Crystal Lake | 61 | 4.9★ (814) | Crystal Lake, 12 mi away | Sat | Most reviews |
| 4 | Valueline Computer Services | 61 | 4.9★ (74) | Vernon Hills, 2 mi away | Sat · Sun · Evenings | — |
| 5 | BHOP Esports | Hawthorn Mall | 61 | 4.7★ (96) | Vernon Hills, 3 mi away | Sat · Sun · Evenings | — |
| 6 | Angelo's Computer Repair | 60 | 5.0★ (462) | Morton Grove, 20 mi away | Sat · Sun · Evenings | — |
| 7 | Cary Grove Computers | 60 | 4.9★ (363) | Cary, 12 mi away | Sat | — |
| 8 | Smartphone Repair Center | 59 | 4.8★ (223) | Glenview, 16 mi away | Sat · Sun | — |
| 9 | Striker Technologies | 58 | 4.9★ (111) | Arlington Heights, 15 mi away | Sat · Sun · Evenings | — |
| 10 | Silverback Tech Repairs | 58 | 5.0★ (41) | Fox Lake, 4 mi away | Sat · Evenings | — |
The 136 best computer repair shops in Mundelein, 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 Grayslake, 5 mi away
62/100IFR ScoreRanked #2 because of its Google rating and service focus: 4.8★ from 586 Google reviews, listed on Google as “Computer repair service”.
Based on 8 of 9 factors; recency not yet collected.
Based in Crystal Lake, 12 mi away
61/100IFR ScoreRanked #3 because of its Google rating and service focus: 4.9★ from 814 Google reviews, listed on Google as “Computer repair service”.
Based on 8 of 9 factors; recency not yet collected.
Based in Vernon Hills, 2 mi away
61/100IFR ScoreRanked #4 because of its Google rating and service focus: 4.9★ from 74 Google reviews, listed on Google as “Computer repair service”.
Based on 8 of 9 factors; recency not yet collected.
Based in Vernon Hills, 3 mi away
61/100IFR ScoreRanked #5 because of its Google rating and service focus: 4.7★ from 96 Google reviews, listed on Google as “Computer service”.
Based on 8 of 9 factors; recency not yet collected.
Based in Morton Grove, 20 mi away
60/100IFR ScoreRanked #6 because of its Google rating and service focus: 5.0★ from 462 Google reviews, listed on Google as “Computer repair service”.
Based on 8 of 9 factors; recency not yet collected.
Based in Cary, 12 mi away
60/100IFR ScoreRanked #7 because of its Google rating and service focus: 4.9★ from 363 Google reviews, listed on Google as “Computer repair service”.
Based on 8 of 9 factors; recency not yet collected.
Based in Glenview, 16 mi away
59/100IFR ScoreRanked #8 because of its Google rating and service focus: 4.8★ from 223 Google reviews, listed on Google as “Computer repair service”.
Based on 8 of 9 factors; recency not yet collected.
Based in Arlington Heights, 15 mi away
58/100IFR ScoreRanked #9 because of its Google rating and service focus: 4.9★ from 111 Google reviews, listed on Google as “Computer repair service”.
Based on 8 of 9 factors; recency not yet collected.
Based in Fox Lake, 4 mi away
58/100IFR ScoreRanked #10 because of its Google rating and service focus: 5.0★ from 41 Google reviews, listed on Google as “Computer repair service”.
Based on 8 of 9 factors; recency not yet collected.
Based in Algonquin, 18 mi away
58/100IFR ScoreRanked #11 because of its Google rating and service focus: 4.5★ from 436 Google reviews, listed on Google as “Computer repair service”.
Based on 8 of 9 factors; recency not yet collected.
Based in Schaumburg, 16 mi away
58/100IFR ScoreRanked #12 because of its Google rating and service focus: 5.0★ from 212 Google reviews, listed on Google as “Computer repair service”.
Based on 8 of 9 factors; recency not yet collected.
Based in Round Lake Beach, 9 mi away
58/100IFR ScoreRanked #13 because of its Google rating and service focus: 4.7★ from 150 Google reviews, listed on Google as “Computer repair service”.
Based on 8 of 9 factors; recency not yet collected.
#14 Zytek Services
Based in Gurnee, 9 mi away
58/100IFR ScoreRanked #14 because of its Google rating and service focus: 5.0★ from 84 Google reviews, listed on Google as “Computer repair service”.
Based on 8 of 9 factors; recency not yet collected.
Based in McHenry, 15 mi away
58/100IFR ScoreRanked #15 because of its Google rating and service focus: 4.9★ from 78 Google reviews, listed on Google as “Computer repair service”.
Based on 8 of 9 factors; recency not yet collected.
#16 VoodooTech
Based in Arlington Heights, 11 mi away
58/100IFR ScoreRanked #16 because of its Google rating and service focus: 5.0★ from 57 Google reviews, listed on Google as “Computer repair service”.
Based on 7 of 9 factors; recency and availability not yet collected.
Based in Lake Zurich, 7 mi away
57/100IFR ScoreRanked #17 because of its Google rating and service focus: 4.7★ from 76 Google reviews, listed on Google as “Computer repair service”.
Based on 8 of 9 factors; recency not yet collected.
Based in Fox Lake, 10 mi away
57/100IFR ScoreRanked #18 because of its Google rating and service focus: 5.0★ from 62 Google reviews, listed on Google as “Computer repair service”.
Based on 8 of 9 factors; recency not yet collected.
#19 IREPAIR XPERT
Based in Schaumburg, 15 mi away
57/100IFR ScoreRanked #19 because of its Google rating and service focus: 4.7★ from 89 Google reviews, listed on Google as “Computer repair service”.
Based on 8 of 9 factors; recency not yet collected.
Based in Mundelein
57/100IFR ScoreRanked #20 because of its Google rating and service focus: 5.0★ from 13 Google reviews, listed on Google as “Computer repair service”.
Based on 8 of 9 factors; recency not yet collected.
#21 Abhi pc repair
Based in Wheeling, 9 mi away
57/100IFR ScoreRanked #21 because of its Google rating and service focus: 4.7★ from 33 Google reviews, listed on Google as “Computer repair service”.
Based on 8 of 9 factors; recency not yet collected.
Based in Carpentersville, 17 mi away
57/100IFR ScoreRanked #22 because of its Google rating and service focus: 4.6★ from 135 Google reviews, listed on Google as “Computer repair service”.
Based on 8 of 9 factors; recency not yet collected.
Based in Arlington Heights, 13 mi away
57/100IFR ScoreRanked #23 because of its Google rating and service focus: 5.0★ from 164 Google reviews, listed on Google as “Computer repair service”.
Based on 8 of 9 factors; recency not yet collected.
#24 Precision PC
Based in Barrington, 10 mi away
57/100IFR ScoreRanked #24 because of its Google rating and service focus: 5.0★ from 45 Google reviews, listed on Google as “Computer repair service”.
Based on 8 of 9 factors; recency not yet collected.
Based in Mundelein
57/100IFR ScoreRanked #25 because of its Google rating and service focus: 4.2★ from 119 Google reviews, listed on Google as “Computer repair service”.
Based on 8 of 9 factors; recency not yet collected.
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 136 ranked computer repair shops here; the rest are on their profiles.
Also serving Mundelein
20 more computer repair shops within 20 mi that we can't rank yet: too few reviews, or a service we couldn't confirm. Listed A to Z.
| Business | Google rating | Distance |
|---|---|---|
| Absolute Solutions Unlimited | 5.0★ (2) | 15 mi |
| Advanced Business Networks Inc. | 3.0★ (2) | In Mundelein |
| ASA Computer Guys | 5.0★ (1) | 8 mi |
| Asen Computer Associates | 5.0★ (2) | 15 mi |
| BinaryHeart (New Trier/Winnetka) | 5.0★ (2) | 19 mi |
| Chicago Microsystems | 5.0★ (1) | 2 mi |
| Cyber Exchange | 5.0★ (2) | In Mundelein |
| Diamond Computer & Software | 1.0★ (1) | In Mundelein |
| Dwd Cyber | 5.0★ (2) | 19 mi |
| Enhanced Networks | In Mundelein | |
| Friendly Computers | 5.0★ (2) | 7 mi |
| Frontier Networks LLC. | 5.0★ (2) | 10 mi |
| Hotwire Co. | 5.0★ (2) | 20 mi |
| Network Integrators | 5.0★ (2) | In Mundelein |
| P R Reliable Computer Services | 4.0★ (2) | 13 mi |
| SmartTech POS | 5.0★ (2) | 20 mi |
| Technical Source Inc | 3.0★ (2) | 10 mi |
| Tellcris Computers & Communications | 4.5★ (2) | 11 mi |
| TURNkey | 4.0★ (2) | 10 mi |
| Whiztek Corporation | 5.0★ (2) | 11 mi |
How we ranked Mundelein computer repair shops
We scored 136 Mundelein 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 Mundelein 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 Mundelein: frequently asked questions
Who is the best computer repair shop in Mundelein?
By IFR Score, the highest-ranked computer repair shop in Mundelein, IL is IT Expert System, INC with an IFR Score of 67/100. It has 5.0★ from 6,321 Google reviews. It is open 7 days a week. 911 Tech Repair - Cell Phone & Computer Repair - Grayslake (#2) and 911 Tech Repair - Cell Phone & Computer Repair - Crystal Lake (#3) follow. We ranked 136 computer repair shops on nine factors, last updated November 9, 2026.
How many computer repair shops are there in Mundelein?
ITFirmsRanked ranks 136 computer repair shops serving Mundelein, IL. 2 of them are based in Mundelein; the rest serve it from nearby towns. Another 20 within 20 mi are listed but not ranked yet. Counts are as of November 2026.
Which computer repair shops in Mundelein work on weekends?
70 of 136 ranked computer repair shops post Saturday hours and 31 post Sunday hours. The highest-ranked open Saturdays are IT Expert System, INC (#1), 911 Tech Repair - Cell Phone & Computer Repair - Grayslake (#2) and 911 Tech Repair - Cell Phone & Computer Repair - Crystal Lake (#3). Posted hours are office hours; many firms also run an after-hours support line for contract clients.
What Google rating do Mundelein computer repair shops have?
The median Google rating among 136 rated computer repair shops in Mundelein is 4.9★, with a median of 23 reviews. IT Expert System, INC has the most, 6,321 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 Mundelein count in this ranking?
Yes, if they are within 20 mi of the Mundelein city center, 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 Mundelein 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 Mundelein
- November 2026: IFR Scores recalculated for 136 computer repair shops serving Mundelein.
- November 2026: 1 duplicate listing merged.
More computer repair shops and Mundelein pages
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