Buy, Sell &
Trade-In Phones
in London
Get instant cash for your old phone or find a quality second-hand handset at a great price. Fair valuations, same-day payment, honest pricing — no nonsense.
Everything You Need in One Place
From selling your old handset for cash to finding a quality second-hand device — we've got you covered.
Buy a Phone
- Quality second-hand & refurbished phones in store
- Every phone tested, cleaned & graded before sale
- All iPhones, Samsung Galaxy & popular Android models
- Competitive prices — a fraction of the retail cost
- 30-day return policy on all handsets sold
- Unlocked phones available — works with any network
Sell Your Phone
- Instant cash paid for your old or unwanted phone
- Free, no-obligation valuation — find out what it's worth
- All conditions considered: working, faulty or damaged
- iPhones, Samsung, Google Pixel, OnePlus & more
- Quick, secure and hassle-free process in store
- Same-day payment — walk in and walk out with cash
Part Exchange / Trade-In
- Trade in your old phone and put the value towards a new one
- Instant trade-in valuation in store — no waiting
- Top trade-in prices for popular models
- Upgrade to a newer handset without the full price tag
- Any brand, any condition considered for trade-in
- Simple process — assessed, valued and done in minutes
Phone Unlocking Service
- Network unlock any phone — all UK & international networks
- Permanent, manufacturer-approved unlocking method
- All iPhone models & Android devices supported
- Fast turnaround — most unlocks completed the same day
- No data loss and no risk to your warranty
- Unlocked phones have higher resale value — unlock before you sell
All Major Smartphone Brands
We deal in all major brands. Whatever you have, we want to hear from you.
Every Phone Graded So You Know What You're Buying
We are fully transparent about the condition of every handset. No surprises, no hidden faults.
Excellent Condition
- No scratches or cracks — looks near-new
- Fully functional — all features working
- Original or quality accessories included
- Premium price — best value for resale
Good Condition
- Minor scratches from normal use
- Fully functional — everything works
- Charger may be included
- Good value price point
Fair / Heavy Use
- Visible marks, scuffs or cracks
- May have minor cosmetic faults
- No accessories included
- Budget-friendly price — great for repairs
How to Sell Your Phone
Selling to Insta Tech takes just a few minutes. Here's exactly how it works.
Walk In — No Appointment Needed
Bring your phone into our store at 67 Marchmont Street, London WC1N 1AP. We're open 7 days a week. No booking, no forms — just walk in.
Free Assessment
Our team inspects your phone, checks its condition, functionality and any faults. The whole assessment takes just a few minutes.
Instant No-Obligation Offer
We give you a fair cash offer based on the phone's grade and current market value. No pressure — you're completely free to decline.
Accept & Get Paid
If you're happy with the offer, we pay you immediately — cash in hand, the same day. No waiting, no bank transfers.
Secure Data Wipe
We perform a full, secure factory reset on your device before it's cleaned and prepared for resale. Your personal data is completely removed — your privacy is fully protected.
Why Buy or Sell With Insta Tech?
Quality Guaranteed
Every phone we sell is thoroughly tested, cleaned and graded. You know exactly what you're buying — no hidden faults, no nasty surprises.
Best Prices Paid
We offer some of the best trade-in and buy prices in London. Get a free, no-obligation valuation and see what your old phone is worth today.
Fast & Hassle-Free
Walk in, get a quote and walk out with cash — often in under 15 minutes. No lengthy forms, no waiting around, no fuss.
Safe & Secure
All transactions are handled securely. Your personal data is fully wiped from any phone we purchase, protecting your privacy completely.
30-Day Buyer Guarantee
All phones sold at Insta Tech come with a 30-day guarantee. If a fault develops, we'll repair or exchange the handset at no charge.
Honest & Transparent
Straightforward pricing with no hidden fees. We tell you exactly what we can offer and why — building trust is at the heart of everything we do.
Frequently Asked Questions
Simply bring your phone into our London store at 67 Marchmont Street, WC1N 1AP. One of our team will inspect it, grade its condition and give you a free, no-obligation cash offer on the spot. If you're happy with the price, you'll receive payment the same day — no waiting.
We accept phones in all conditions — from mint to broken. Even if your screen is cracked, the phone won't turn on, or it has water damage, we may still make you an offer. The better the condition, the higher the price you will receive. Bring it in and we'll assess it for free.
Yes, absolutely. Every phone we purchase undergoes a full factory reset and secure data wipe before it is tested and resold. Your personal information, accounts, messages and files are completely removed — your privacy is fully protected.
Most phones we sell are fully unlocked and compatible with all UK networks. If a phone is network-locked, we will clearly state this and offer an unlocking service so you can use it with your preferred SIM card. Ask us in-store for more details.
Yes. Bring in your old phone and its value will be deducted from the price of the handset you want to buy. Part exchange is a great way to upgrade your phone without paying the full price. Any brand, any condition is considered.
All phones sold at Insta Tech come with a 30-day guarantee. If a fault develops within this period that was not disclosed at the time of sale, we will repair or exchange the handset at no cost to you. Your peace of mind is important to us.
Find Us in Central London
Get directions →
Sunday: 10am – 6pm
Buy, Sell or Trade In
Your Phone Today.
Visit us in London for a free, no-obligation valuation on your phone — or browse our range of quality second-hand handsets in store.