Guerin Reviews 

I would give ZERO stars if I could. This company is a SCAM. We rented a car from July 14-Aug. 3. Like many other reviewers have stated, we were not told they would take a $1000E deposit. When we returned it, they went around it with a flashlight and found a tiny scratch we had NOT done. The vehicle was completely banged up when we received it! They told us at pickup l, “Don’t worry. It’s all marked on the report.” Well it wasn’t and they proceeded to charge us $200E extra.
It’s a SCAM. Do NOT rent!!

Please read this post and save yourself the issues dealing with this company.
I read the negative reviews and changed my booking to Alamo. On arrival, I found out that Guerin operates Alamo in Portugal.

On return of the car, the employee examined the car for 20 minutes and eventually noticed a old 'scratch' on the back of the mirror. Based on my driving and where I parked the car, it is impossible that the 'scratch' occurred during my rental.

They wanted me to produce pictures of the scratch that I should have uploaded to their site at the start of the rental. They would not produce the report from the prior check in where they would have inspected the car to show that the scratch was not there. The manager would not even get up from her chair to examine the car. The manager Julie spoke to the fact that customer service is there primary concern, but failed to address the issue.

Amazingly, they decided on the spot, that the tiny scratch cost over $200 to fix and deducted it from my deposit. No evidence that the repair was or even would be completed.

Based on reviews, this appears to be a trend at Guerin and I have never posted before but feel that this is a company to be avoided at all costs.

Please reply if this influenced your decision and I will continue to provide feedback to both Guerin and Alamo and National who let their reputations be negatively impacted by this behaviour.

E’ una FRODE!!! Do NOT rent a car here! NEVER do that! They charge you at the end for damage you did NOT do and they do NOT answer any phone/emails. Stay AWAY from this company!

Avoid Guerin Rent-A-Car in Faro – Customer Service Nightmare!

If you're hiring a car in Faro, Portugal – do yourself a favor and steer clear of Guerin Rent-A-Car. They operate under National, Enterprise, and Alamo, but don’t be fooled – this is not the level of service you'd expect from those brands.

Despite preloading all my details to use their self-service kiosk, I was still directed to the counter – where the relentless upselling of insurance began. The pressure was uncomfortable and unnecessary.

To make matters worse, they placed a €1000 hold on my credit card without informing me. That’s right – before I even had the keys in hand, they had taken full payment and locked up €1000 of my credit. When I questioned it via email, I was told it was a “mandatory requirement” – which sounds official, but it’s just a corporate policy, not law.

Even after returning the car in perfect condition and with a full tank, I was told the hold would take 3–5 business days to be released, and that it was “out of their control.” Multiple follow-ups got me nothing but canned responses and excuses.

This isn’t customer service – it’s corporate stonewalling. Guerin made what should’ve been a smooth rental experience into a stressful ordeal. Plenty of other rental companies in Faro – choose one that respects your time, your wallet, and your trust.

Avoid this company ! I got charged by car trawler . They then charged me again and are refusing to refund the money , saying I signed for it , when I already explained that I’d pre paid .
Paid over £700 for 4 days driving a tiny run around !

Company charged €150 without explanation, no response after multiple written requests. Seems to be their scheme when reading the reviews. Never again!!!

I rented a car in Lisbon and it was by far the best car rental experience I have ever had !!! Fact

I am writing to express my strong dissatisfaction regarding an unjustified charge of €1,049.98 related to damage clearly caused by a third party during my rental booked via the Alamo website (Reservation No. 697807319 – Guerin Portugal).

A joint accident report was signed on the spot, clearly stating that the other driver was at fault. Despite this, Guerin charged the full amount directly to my card — even though I purchased CDW coverage through Alamo, which should exempt me from financial responsibility.

I have contacted Guerin several times. Their only reply is that the matter is under "review by the insurance company" — with no timeline, no resolution, and no refund.

I stress that:

I was not responsible for the accident;

CDW coverage was included in my reservation;

All supporting documents (joint report, photos, invoice, and proof of payment) have been submitted.

This experience is unacceptable and reflects poor customer service. I urge Guerin and Alamo to take responsibility and issue a full refund immediately.

We hired a car from Guerin (Enterprise) at Faro Airport, Portugal for a week. The car itself was a Hybrid (Toyota) but it rarely went into EV mode, 99% of the time it was petrol and it was very uneconomical.

When we returned the car, the Brazilian staff member (Tiago) at the Guerin counter checked over the car with a magnifying glass. No surprise then, that he found a TINY mark on the front wheel hub. He then charged us 200 Euros! A complete rip off.

We were late for our flight, otherwise I would have put up a huge argument about it.

This company is a bunch of scammers and thieves. I have used Enterprise before, which is why I used them on this trip. But, never again.

I sent them a complaint email and never received a response.

Do not use this appalling scam of a rental company. They are the worst. You have been warned.

This is an agency that handles services for several car rental companies. They are extortionists, making up charges due to “damages”. Stay away from them. Look at their reviews. The authorities should just shut them down.

I rented a car to spend a day driving from Lisbon and Porto.
At the time of booking, the total price—including the one-way drop-off fee—was clearly confirmed. This was shown in the booking confirmation. However, at the Lisbon pick-up location, staff attempted to charge us a second time for the drop-off fee, and again at the Porto drop-off location—a third time. And again this information was specified in the rental agreement created before the booking and again the paperwork signed at the time of rental in Lisbon.

To make matters worse, they are now charging me €165 for a minor scratch on a hubcap - a highly disproportionate amount- that was there when we picked up the car and written off by your team as negligible.

The customer service was the worst I have ever experienced and the amount of time I wasted while your team took their sweet time during every portion of the process was unparalleled. I spent over an hour in each location dealing with these issues, dramatically changing our plans to the point where we missed lunch reservations in Lisbon and the metro stopped running in Porto forcing us to take a bus to our destination losing us another 2 hours of our time.

I rented from National loyally for the past several years but this interaction with Guerin is making me change that.

Very efficient check in, no issues in return in the office less than 5 mins.

Be careful, they just charge your card without letting you know and just add extra charges out of nowhere after you have dropped off the car.
Customer service is a piece of work. Be lucky to even get a reply back!

They charged a cleaning fee for a super old and dirty car. I wrote several times to the customer service to complain, never received an answer.
DO NOT RENT FROM THEM!

Guerin Porto Airport - rented a car from them in December 2024. In June 2025 a letter from Euro Parking Collection arrives in the post demanding payment of a 0.55 Euro toll + their 18 Euros 'administration fee'.
Investigation reveals that EPC is a bunch of bounty hunting debt collectors to whom the road toll operators in Portugal farm out their 'unpaid charges' - tolls remaining unpaid because these operators are slow to transfer the information to car rental companies so that on check-out there are no outstanding tolls showing.
Car rental companies in Portugal are all aware of this piss-poor system yet say nothing when selling their 'toll service' (ie transponder in windshield gets activated). Guerin is one of these companies who take the money for the toll service and leave you at the mercy of the EPC scammers who are based in London, England.

Whilst some may have experienced issues, this was my second rental with Guerin and I had no problems.

I booked the zero excess option and check in was easy.

Drop off was also easy and quick.

I personally recommend this company and would use them again when I next visit Portugal (Faro).

I had booked a Guirin car via EasyTerra and paid in advance for an extra package: no no-claim, roadside assistance and extra coverage. Picking up the car Madeira airport they said none of that was valid (?) and try to offer me this very same package at an additional 250 euro. I explained I had already paid for it, but they basically did not care. What a fraud....

Porto Airport . I had booked and paid in full for rental plus insurance 3 months earlier via Booking.com. On arrival I showed my voucher and insurance paperwork to the man who dealt with us and emphasised that I did not want to purchase any extras. Used my credit card to pay the deposit and later found an additional payment of £152.47 had been taken. I phoned the rental office every single day of my holiday to query this, but they would not pick up the phone. On returning the car I was told that they’d charged me for an insurance package that I definitely hadn’t asked for.

They insist that you enter masses of information using their on line terminal at pick up, even if all of it has already been provided in advance at the booking stage. I believe that this is a ploy to make it easier for them to slip in extra charges.

The amount of reviews here speaks volumes, but to add my own brick to the building: the contract stipulated that toll fare is covered. I got like 10 euro of tolls and now they're sending debt collectors for 125 euros due to "unpaid tolls". Such a misery.

Used this company from Faro airport for ten years and always found them fair. Rented in May 2025 and gave them 5stars. Was rushed through their check in late in evening and only realised I had been charged €487 ,for insurance I did not want the next day, here for 19 days and have been trying to contact them since 26th June
Only response on the phone was “nothing can be done” and no response to emails. Steer well clear or follow all the advice from other trustpilot reviewers
This is more than my annual car insurance in the UK
AKA