Buy, Sell & Expert Electronics Repair In Kennesaw
Don’t let a broken device or a faulty HDMI port slow you down. At MarTech, we pay top cash on the spot for used electronics and provide fast, certified repairs for iPhones, MacBooks, and gaming systems. From instant device trade-ins to advanced console micro-soldering, we get your tech back in top shape. Proudly serving Kennesaw, Marietta, Woodstock, and Acworth.

Fast & Reliable Device Repair Services
We fix all smartphone makes and models. Whether you need a cracked screen replaced, a new battery installed, or a damaged charging port cleaned and repaired, we keep genuine parts in stock to get your phone running like new—often in under an hour.
Is your computer crashing, running slow, or showing a black screen? We handle everything from MacBook screen replacements and hardware upgrades to PC virus removal and data recovery. Bring in your Windows or Apple computer for a free diagnostic.
Tablets are prone to drops and connectivity issues. We expertly service Apple iPads, Samsung Galaxies, and all other major tablet brands. We can resolve shattered glass, broken buttons, camera malfunctions, and software glitches quickly and affordably.
Get back in the game faster. We specialize in advanced console repairs, including PS5 HDMI port replacements and Nintendo Switch fixes. Utilizing precision micro-soldering equipment, we perform complex motherboard repairs that most general shops cannot handle.









Why Cobb County Trusts MarTech
Are your repair technicians certified and experienced?
Yes. Our technicians are trained in advanced micro-soldering, board-level diagnostics, and component-level repair — not just basic part swaps. This means we can fix complex hardware issues, like PS5 HDMI ports and damaged motherboards, that many general repair shops turn away.
Do you offer same-day phone and tablet repair in Cobb County?
Most phone and tablet repairs are completed the same day you drop them off, and many common fixes like screen and battery replacements are done in under an hour. We keep a fully stocked parts inventory so customers across Kennesaw, Marietta, Acworth, and Woodstock aren’t left waiting for their devices.
How much does a device repair cost, and do you offer a warranty?
We provide upfront, honest pricing and free quotes before any work begins, so there are no surprises. We use premium OEM-quality parts, and our repairs are backed by a comprehensive warranty for your peace of mind.
What devices and brands do you repair?
We repair iPhones, Android phones, iPads, Samsung Galaxy tablets, MacBooks, Windows laptops and desktops, Apple Watches, PS5, Xbox, Nintendo Switch, and most other electronics. We service all major makes and models for screen, battery, charging port, water damage, and software issues.
Where is MarTech located and do you accept walk-ins?
We’re located at 4221 Bells Ferry Rd, Kennesaw, GA 30144, conveniently serving all of Cobb County. We welcome both walk-ins and scheduled appointments. You can also call us at (770) 226-4310 to check availability.
How do I sell my electronics for cash at MarTech?
Selling is simple: bring your device to our Kennesaw shop, and we’ll inspect it on the spot and make you a fair cash offer. If you accept, you walk out with cash the same day — no shipping, no waiting, and no obligation if you decide not to sell. You can also request a free cash offer online before coming in.
What electronics do you buy for cash?
We buy phones, tablets, laptops, MacBooks, game consoles such as PS5 and Xbox, smartwatches, and many other electronics. We purchase devices in a range of conditions — working, lightly used, or even damaged — so it’s worth asking even if your device has issues.
How much cash can I get for my used device?
Your offer depends on the device model, age, and condition. Because we resell and refurbish locally, we’re often able to pay top cash on the spot — frequently more than mail-in trade-in programs. Bring your device in or request a free quote for an exact offer.
Do I get paid on the spot, and what should I bring?
Yes — once you accept our offer, you’re paid the same day. To make the process fast, bring the device, any chargers or accessories you have, and a valid photo ID. Removing your passcode and signing out of accounts like iCloud or Google beforehand helps us complete the sale quickly.
Your Local Tech Support in Kennesaw, GA
Conveniently located at 4221 Bells Ferry Rd, MarTech is your neighborhood headquarters for comprehensive device repair. What started out as a passion in our computer room has grown into a highly trusted local business dedicated to complete customer satisfaction.
Whether you need a quick screen fix or advanced troubleshooting, stop by our shop or reach out today. We proudly welcome walk-ins and appointments from Kennesaw, Marietta, Woodstock, Acworth, and all surrounding communities.
Stop by our shop: 4221 Bells Ferry Rd, Kennesaw, GA 30144
Give us a call: (770) 226-4310
Email our technicians: MarTechGA@gmail.com
About Martech
What once started out as a hobby in our computer room has now become our passion and we’re delighted to share that same passion with you. We’re known around town for our warm, friendly and helpful side, and friendly neighborhood atmosphere, our detailed repairs, and commitment to complete customer satisfaction.

Contact Us
Ready to get started? Get in touch today
Martech is a tech repair company located in Cobb County whose purpose of business is to help those in need of electronics repairs whethers it’s a quick fix, a minor fix or an advance technical issue.


