66/100IFR Score
Ranked #1 because of its Google rating and review volume: 5.0★ from 6,321 Google reviews, the most in Warrenville.
Based on 8 of 9 factors; recency not yet collected.
Best Computer Repair Shops in Warrenville, IL (2026)
213 computer repair shops ranked by IFR ScoreUpdated 0 paid placements in this rankingHow we rank →
The short answer
- 1
Best overall in Warrenville: IT Expert System, INC, IFR Score 66/100; 5.0★ from 6,321 Google reviews; open 7 days a week.
- 7
Most-reviewed: EZMOBIFIX - Cellphone Repair Center, 844 Google reviews at 4.9★, the most of 213 ranked after IT Expert System, INC; ranked #7.
Rankings can't be bought. IT providers can't pay to change their rank or score. How we rank
213 Warrenville computer repair shops are ranked here by IFR Score, from nine published factors. 120 open Saturdays and 70 open Sundays, based on posted hours. The median Google rating is 4.9★ across 213 rated IT firms.
Most of this list also appears on the Computer repair shops in Naperville ranking. See Computer repair shops in Naperville
Top 10 computer repair shops in Warrenville 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 | 66 | 5.0★ (6,321) | Schaumburg, 17 mi away | Sat · Sun · Evenings | Overall |
| 2 | DPC Computer repair | 63 | 4.9★ (630) | Naperville, 3 mi away | Sat · Evenings | — |
| 3 | Nerd Rangers | 63 | 5.0★ (436) | Naperville, 3 mi away | Sat · Evenings | — |
| 4 | SM Gadget Repair | 63 | 4.6★ (441) | Naperville, 2 mi away | Sat · Sun · Evenings | — |
| 5 | M.D. COMPUTER REPAIRS | 62 | 5.0★ (348) | Addison, 11 mi away | Sat · Sun · Evenings | — |
| 6 | ITChamp | 62 | 5.0★ (98) | Bolingbrook, 8 mi away | Sat · Sun · Evenings | — |
| 7 | EZMOBIFIX - Cellphone Repair Center | 62 | 4.9★ (844) | Romeoville, 12 mi away | Sat · Evenings | Most reviews |
| 8 | Dr. Gadget Phone and Tablet Repair - Naperville | 62 | 4.8★ (302) | Naperville, 2 mi away | Sat | — |
| 9 | M Group Cell Phone And Computer Repair | 61 | 5.0★ (68) | Aurora, 1 mi away | — | — |
| 10 | Alan's One Stop Computer Repairs | 61 | 4.9★ (480) | Brookfield, 17 mi away | Sat · Sun · Evenings | — |
The 213 best computer repair shops in Warrenville, 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 Naperville, 3 mi away
63/100IFR ScoreRanked #2 because of its Google rating and service focus: 4.9★ from 630 Google reviews, listed on Google as “Computer repair service”.
Based on 8 of 9 factors; recency not yet collected.
#3 Nerd Rangers
Based in Naperville, 3 mi away
63/100IFR ScoreRanked #3 because of its Google rating and service focus: 5.0★ from 436 Google reviews, listed on Google as “Computer repair service”.
Based on 8 of 9 factors; recency not yet collected.
Based in Naperville, 2 mi away
63/100IFR ScoreRanked #4 because of its Google rating and service focus: 4.6★ from 441 Google reviews, listed on Google as “Computer repair service”.
Based on 8 of 9 factors; recency not yet collected.
Based in Addison, 11 mi away
62/100IFR ScoreRanked #5 because of its Google rating and service focus: 5.0★ from 348 Google reviews, listed on Google as “Computer repair service”.
Based on 8 of 9 factors; recency not yet collected.
#6 ITChamp
Based in Bolingbrook, 8 mi away
62/100IFR ScoreRanked #6 because of its Google rating and service focus: 5.0★ from 98 Google reviews, listed on Google as “Computer repair service”.
Based on 8 of 9 factors; recency not yet collected.
Based in Romeoville, 12 mi away
62/100IFR ScoreRanked #7 because of its Google rating and service focus: 4.9★ from 844 Google reviews, listed on Google as “Computer repair service”.
Based on 8 of 9 factors; recency not yet collected.
Based in Naperville, 2 mi away
62/100IFR ScoreRanked #8 because of its Google rating and service focus: 4.8★ from 302 Google reviews, listed on Google as “Computer repair service”.
Based on 8 of 9 factors; recency not yet collected.
Based in Aurora, 1 mi away
61/100IFR ScoreRanked #9 because of its Google rating and service focus: 5.0★ from 68 Google reviews, listed on Google as “Computer repair service”.
Based on 7 of 9 factors; recency and availability not yet collected.
Based in Brookfield, 17 mi away
61/100IFR ScoreRanked #10 because of its Google rating and service focus: 4.9★ from 480 Google reviews, listed on Google as “Computer repair service”.
Based on 8 of 9 factors; recency not yet collected.
#11 PC FIX
Based in Wheaton, 5 mi away
61/100IFR ScoreRanked #11 because of its Google rating and service focus: 4.9★ from 120 Google reviews, listed on Google as “Computer repair service”.
Based on 7 of 9 factors; recency and availability not yet collected.
Based in Bridgeview, 16 mi away
60/100IFR ScoreRanked #12 because of its Google rating and service focus: 4.8★ from 520 Google reviews, listed on Google as “Computer repair service”.
Based on 8 of 9 factors; recency not yet collected.
#13 GameStorm, Inc.
Based in Lemont, 15 mi away
60/100IFR ScoreRanked #13 because of its Google rating and service focus: 4.7★ from 302 Google reviews, listed on Google as “Computer repair service”.
Based on 8 of 9 factors; recency not yet collected.
Based in Bartlett, 11 mi away
59/100IFR ScoreRanked #14 because of its Google rating and service focus: 4.6★ from 513 Google reviews, listed on Google as “Computer repair service”.
Based on 8 of 9 factors; recency not yet collected.
#15 A&O Group, Inc.
Based in Aurora, 8 mi away
59/100IFR ScoreRanked #15 because of its Google rating and service focus: 4.9★ from 217 Google reviews, listed on Google as “Computer repair service”.
Based on 8 of 9 factors; recency not yet collected.
Based in Aurora, 5 mi away
59/100IFR ScoreRanked #16 because of its Google rating and service focus: 5.0★ from 34 Google reviews, listed on Google as “Computer repair service”.
Based on 8 of 9 factors; recency not yet collected.
Based in Oswego, 11 mi away
59/100IFR ScoreRanked #17 because of its Google rating and service focus: 4.7★ from 264 Google reviews, listed on Google as “Computer repair service”.
Based on 8 of 9 factors; recency not yet collected.
#18 AdvancedTech
Based in Addison, 12 mi away
59/100IFR ScoreRanked #18 because of its Google rating and service focus: 4.8★ from 250 Google reviews, listed on Google as “Computer service”.
Based on 8 of 9 factors; recency not yet collected.
Based in Plainfield, 16 mi away
59/100IFR ScoreRanked #19 because of its Google rating and service focus: 4.8★ from 189 Google reviews, listed on Google as “Computer repair service”.
Based on 8 of 9 factors; recency not yet collected.
#20 Apex Computers
Based in Downers Grove, 9 mi away
59/100IFR ScoreRanked #20 because of its Google rating and service focus: 4.7★ from 72 Google reviews, listed on Google as “Computer repair service”.
Based on 8 of 9 factors; recency not yet collected.
Based in Saint Charles, 9 mi away
59/100IFR ScoreRanked #21 because of its Google rating and service focus: 5.0★ from 73 Google reviews, listed on Google as “Computer repair service”.
Based on 7 of 9 factors; recency and availability not yet collected.
Based in Aurora, 13 mi away
58/100IFR ScoreRanked #22 because of its Google rating and service focus: 4.9★ from 108 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 #23 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.
#24 Nerds By Design
Based in Aurora, 5 mi away
58/100IFR ScoreRanked #24 because of its Google rating and service focus: 5.0★ from 10 Google reviews, listed on Google as “Computer repair service”.
Based on 8 of 9 factors; recency not yet collected.
#25 Fix This Now
Based in Aurora, 6 mi away
58/100IFR ScoreRanked #25 because of its Google rating and service focus: 4.1★ from 168 Google reviews, listed on Google as “Computer repair service”.
Based on 8 of 9 factors; recency not yet collected.
How we ranked Warrenville computer repair shops
We scored 213 Warrenville 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 Warrenville 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 Warrenville: frequently asked questions
Who is the best computer repair shop in Warrenville?
By IFR Score, the highest-ranked computer repair shop in Warrenville, IL is IT Expert System, INC with an IFR Score of 66/100. It has 5.0★ from 6,321 Google reviews. It is open 7 days a week. DPC Computer repair (#2) and Nerd Rangers (#3) follow. We ranked 213 computer repair shops on nine factors, last updated November 9, 2026.
How many computer repair shops are there in Warrenville?
ITFirmsRanked ranks 213 computer repair shops serving Warrenville, IL. Counts are as of November 2026.
Which computer repair shops in Warrenville work on weekends?
120 of 213 ranked computer repair shops post Saturday hours and 70 post Sunday hours. The highest-ranked open Saturdays are IT Expert System, INC (#1), DPC Computer repair (#2) and Nerd Rangers (#3). Posted hours are office hours; many firms also run an after-hours support line for contract clients.
What Google rating do Warrenville computer repair shops have?
The median Google rating among 213 rated computer repair shops in Warrenville is 4.9★, with a median of 24 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 Warrenville count in this ranking?
Yes, if they are within 20 mi of the Warrenville 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 Warrenville 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 Warrenville
- November 2026: IFR Scores recalculated for 213 computer repair shops serving Warrenville.
- November 2026: 2 duplicate listings merged.
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