66/100IFR Score
Ranked #1 because of its Google rating and review volume: 5.0★ from 6,321 Google reviews, the most in Crystal Lake.
Best Computer Repair Shops in Crystal Lake, IL (2026)
93 computer repair shops ranked by IFR ScoreUpdated 0 paid placements in this rankingHow we rank →
The short answer
- 1
Best overall in Crystal Lake: IT Expert System, INC, IFR Score 66/100; 5.0★ from 6,321 Google reviews; open 7 days a week.
- 2
Most-reviewed: 911 Tech Repair - Cell Phone & Computer Repair - Crystal Lake, 814 Google reviews at 4.9★, the most of 93 ranked after IT Expert System, INC; ranked #2.
Rankings can't be bought. IT providers can't pay to change their rank or score. How we rank
93 Crystal Lake computer repair shops are ranked here by IFR Score, from nine published factors. 54 open Saturdays and 23 open Sundays, based on posted hours. The median Google rating is 4.9★ across 93 rated IT firms.
Top 10 computer repair shops in Crystal Lake 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, 19 mi away | Sat · Sun · Evenings | Overall |
| 2 | 911 Tech Repair - Cell Phone & Computer Repair - Crystal Lake | 65 | 4.9★ (814) | Crystal Lake | Sat | Most reviews |
| 3 | Cellphone PC Fix (Repair, Buy, Sell and Trade) | 62 | 4.5★ (436) | Algonquin, 5 mi away | Sat · Sun · Evenings | — |
| 4 | Cary Grove Computers | 62 | 4.9★ (363) | Cary, 5 mi away | Sat | — |
| 5 | ProFix Computer repair | 60 | 4.9★ (78) | McHenry, 8 mi away | Sat · Sun · Evenings | — |
| 6 | Oscarin's Computer | 59 | 4.6★ (135) | Carpentersville, 9 mi away | Sat · Sun · Evenings | — |
| 7 | 911 Tech Repair - Cell Phone & Computer Repair - Grayslake | 59 | 4.8★ (586) | Grayslake, 16 mi away | Sat | — |
| 8 | Flash⚡️ Fix Phones & Electronics Repair - Video Games - laptops - ipads - tablets | 58 | 5.0★ (212) | Schaumburg, 17 mi away | Sat · Evenings | — |
| 9 | KS Computers | 58 | 5.0★ (51) | Crystal Lake | — | — |
| 10 | My Tech Expert | 58 | 4.8★ (26) | Lake in the Hills, 5 mi away | Sat · Sun | — |
The 93 best computer repair shops in Crystal Lake, 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.
Based in Crystal Lake
65/100IFR ScoreRanked #2 because of its Google rating and service focus: 4.9★ from 814 Google reviews, listed on Google as “Computer repair service”.
Based in Algonquin, 5 mi away
62/100IFR ScoreRanked #3 because of its Google rating and service focus: 4.5★ from 436 Google reviews, listed on Google as “Computer repair service”.
Based in Cary, 5 mi away
62/100IFR ScoreRanked #4 because of its Google rating and service focus: 4.9★ from 363 Google reviews, listed on Google as “Computer repair service”.
Based in McHenry, 8 mi away
60/100IFR ScoreRanked #5 because of its Google rating and service focus: 4.9★ from 78 Google reviews, listed on Google as “Computer repair service”.
Based in Carpentersville, 9 mi away
59/100IFR ScoreRanked #6 because of its Google rating and service focus: 4.6★ from 135 Google reviews, listed on Google as “Computer repair service”.
Based in Grayslake, 16 mi away
59/100IFR ScoreRanked #7 because of its Google rating and service focus: 4.8★ from 586 Google reviews, listed on Google as “Computer repair service”.
Based in Schaumburg, 17 mi away
58/100IFR ScoreRanked #8 because of its Google rating and service focus: 5.0★ from 212 Google reviews, listed on Google as “Computer repair service”.
#9 KS Computers
Based in Crystal Lake
58/100IFR ScoreRanked #9 because of its Google rating and service focus: 5.0★ from 51 Google reviews, listed on Google as “Computer repair service”.
#10 My Tech Expert
Based in Lake in the Hills, 5 mi away
58/100IFR ScoreRanked #10 because of its Google rating and service focus: 4.8★ from 26 Google reviews, listed on Google as “Computer repair service”.
Based in Fox Lake, 9 mi away
57/100IFR ScoreRanked #11 because of its Google rating and service focus: 5.0★ from 62 Google reviews, listed on Google as “Computer repair service”.
Based in Algonquin, 5 mi away
57/100IFR ScoreRanked #12 because of its Google rating and service focus: 5.0★ from 13 Google reviews, listed on Google as “Computer repair service”.
Based in Bartlett, 20 mi away
57/100IFR ScoreRanked #13 because of its Google rating and service focus: 4.6★ from 513 Google reviews, listed on Google as “Computer repair service”.
Based in Vernon Hills, 18 mi away
57/100IFR ScoreRanked #14 because of its Google rating and service focus: 4.9★ from 74 Google reviews, listed on Google as “Computer repair service”.
Based in Carpentersville, 11 mi away
57/100IFR ScoreRanked #15 because of its Google rating and service focus: 5.0★ from 117 Google reviews, listed on Google as “Computer repair service”.
#16 Precision PC
Based in Barrington, 12 mi away
57/100IFR ScoreRanked #16 because of its Google rating and service focus: 5.0★ from 45 Google reviews, listed on Google as “Computer repair service”.
Based in Vernon Hills, 19 mi away
56/100IFR ScoreRanked #17 because of its Google rating and service focus: 4.7★ from 96 Google reviews, listed on Google as “Computer service”.
Based in Lake Zurich, 11 mi away
56/100IFR ScoreRanked #18 because of its Google rating and service focus: 4.7★ from 76 Google reviews, listed on Google as “Computer repair service”.
Based in Fox Lake, 15 mi away
56/100IFR ScoreRanked #19 because of its Google rating and service focus: 5.0★ from 80 Google reviews, listed on Google as “Computer repair service”.
#20 IREPAIR XPERT
Based in Schaumburg, 20 mi away
56/100IFR ScoreRanked #20 because of its Google rating and service focus: 4.7★ from 89 Google reviews, listed on Google as “Computer repair service”.
Based in Schaumburg, 18 mi away
56/100IFR ScoreRanked #21 because of its Google rating and service focus: 4.6★ from 472 Google reviews, listed on Google as “Computer repair service”.
Based in Round Lake Beach, 19 mi away
55/100IFR ScoreRanked #22 because of its Google rating and service focus: 4.7★ from 150 Google reviews, listed on Google as “Computer repair service”.
#23 GADGET'S ER.
Based in Elgin, 14 mi away
55/100IFR ScoreRanked #23 because of its Google rating and service focus: 4.8★ from 65 Google reviews, listed on Google as “Computer repair service”.
Based in Carpentersville, 11 mi away
55/100IFR ScoreRanked #24 because of its Google rating and service focus: 4.9★ from 26 Google reviews, listed on Google as “Computer repair service”.
Based in McHenry, 9 mi away
55/100IFR ScoreRanked #25 because of its Google rating and service focus: 4.7★ from 19 Google reviews, listed on Google as “Computer repair service”.
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 93 ranked computer repair shops here; the rest are on their profiles.
| Rank | Business | IFR Score | Google rating | Distance |
|---|---|---|---|---|
| 26 | Suburban Computer Techs | 55 | 5.0★ (7) | 5 mi |
| 27 | Repair Go Computer Repair | 55 | 5.0★ (17) | 9 mi |
| 28 | AK Electronics LLC | 55 | 4.4★ (14) | In Crystal Lake |
| 29 | Computer Pros | 55 | 5.0★ (9) | In Crystal Lake |
| 30 | Alvey Personalized Computers | 55 | 5.0★ (3) | 10 mi |
| 31 | Silverback Tech Repairs | 55 | 5.0★ (41) | 18 mi |
| 32 | Compubrainexpert | 55 | 3.8★ (57) | 11 mi |
| 33 | Any Key Computer Services | 54 | 4.7★ (13) | 15 mi |
| 34 | Tech on Wheels | 54 | 5.0★ (31) | 12 mi |
| 35 | Grohtech | 54 | 4.2★ (5) | 6 mi |
| 36 | DVC Computer Repair and Laptop Repair | 54 | 5.0★ (11) | 12 mi |
| 37 | Digital Computer Repair | 54 | 5.0★ (20) | 14 mi |
| 38 | Mako Networks | 54 | 5.0★ (5) | 12 mi |
| 39 | The Computer Guy C.R.C. | 53 | 3.7★ (36) | 9 mi |
| 40 | 847 Technology Solutions | 53 | 4.0★ (5) | 5 mi |
| 41 | Oscarin's Computer | 53 | 5.0★ (3) | 10 mi |
| 42 | LapTech Computer Repair Services | 53 | 4.8★ (38) | 19 mi |
| 43 | XCell Wireless | 53 | 4.9★ (365) | 12 mi |
| 44 | Oakwood Technologies Inc | 53 | 4.8★ (4) | 9 mi |
| 45 | LeadingIT | 53 | 4.9★ (75) | 8 mi |
| 46 | PCS International | 53 | 2.6★ (5) | 16 mi |
| 47 | PAK Computer Services | 53 | 5.0★ (13) | 17 mi |
| 48 | Triangle Computer Services LLC | 52 | 4.9★ (36) | 18 mi |
| 49 | Mundelein Computer Guy | 52 | 4.2★ (119) | 16 mi |
| 50 | Valcon Systems Inc. | 52 | 5.0★ (39) | 19 mi |
Also serving Crystal Lake
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 |
|---|---|---|
| ACT Network Solutions | 5.0★ (3) | In Crystal Lake |
| Bacher Computer Solutions Inc | 3.5★ (2) | In Crystal Lake |
| Castle Computer Consulting Inc. | In Crystal Lake | |
| Computer Squad | In Crystal Lake | |
| Cyber Exchange | 5.0★ (2) | 16 mi |
| DeKind Computer Consultants | 5.0★ (5) | In Crystal Lake |
| Disc & Dat Mobile PC Repairs | 3.0★ (2) | 17 mi |
| Dwd Cyber | 5.0★ (2) | 9 mi |
| Friendly Computers | 5.0★ (2) | 13 mi |
| JB Tech Services | In Crystal Lake | |
| Legion Technologies Inc. | In Crystal Lake | |
| MadMax IoT | In Crystal Lake | |
| Network Integrators | 5.0★ (2) | 15 mi |
| Optimized Computing, Inc | 5.0★ (1) | In Crystal Lake |
| Simple PC & Tech | In Crystal Lake | |
| SmartTech POS | 5.0★ (2) | 14 mi |
| Sterling Network Integration | 5.0★ (1) | In Crystal Lake |
| The I.T. Connection, Inc. | 3.4★ (5) | In Crystal Lake |
| The Tech Grandson | 5.0★ (2) | In Crystal Lake |
| Whiztek Corporation | 5.0★ (2) | 18 mi |
How we ranked Crystal Lake computer repair shops
We scored 93 Crystal Lake 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 Crystal Lake 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 Crystal Lake: frequently asked questions
Who is the best computer repair shop in Crystal Lake?
By IFR Score, the highest-ranked computer repair shop in Crystal Lake, 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. 911 Tech Repair - Cell Phone & Computer Repair - Crystal Lake (#2) and Cellphone PC Fix (Repair, Buy, Sell and Trade) (#3) follow. We ranked 93 computer repair shops on nine factors, last updated November 9, 2026.
How many computer repair shops are there in Crystal Lake?
ITFirmsRanked ranks 93 computer repair shops serving Crystal Lake, IL. 4 of them are based in Crystal Lake; 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 Crystal Lake work on weekends?
54 of 93 ranked computer repair shops post Saturday hours and 23 post Sunday hours. The highest-ranked open Saturdays are IT Expert System, INC (#1), 911 Tech Repair - Cell Phone & Computer Repair - Crystal Lake (#2) and Cellphone PC Fix (Repair, Buy, Sell and Trade) (#3). Posted hours are office hours; many firms also run an after-hours support line for contract clients.
What Google rating do Crystal Lake computer repair shops have?
The median Google rating among 93 rated computer repair shops in Crystal Lake is 4.9★, with a median of 20 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 Crystal Lake count in this ranking?
Yes, if they are within 20 mi of the Crystal Lake 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 Crystal Lake 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 Crystal Lake
- November 2026: IFR Scores recalculated for 93 computer repair shops serving Crystal Lake.
More computer repair shops and Crystal Lake pages
Computer repair shops near Crystal Lake
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- All IT providers in Crystal Lake