I – V 8:30 – 19:00 & VI 9:00 – 13:00
Guerin is a major Portuguese rental operator with locations at every major airport (Lisbon, Porto, Faro) plus city offices nationwide — but the customer experience varies significantly between locations and bookings. Trustpilot reviews from 2024-2026 show a polarized pattern: some customers report excellent service, while others describe hidden damage charges, inflated toll fees (€10 actual toll → €125 charged), and unexpected post-rental deductions. This guide reviews Guerin's actual customer experience based on published reviews, what to watch for if you book with them, and which alternative Portuguese operators we recommend for predictable pricing.
Guerin has nationwide Portugal coverage but a polarized review pattern — read this honest review before booking.
Guerin (full name: Guerin Rent-A-Car) is one of Portugal's major domestic rental operators, headquartered in Prior Velho near Lisbon Airport. They have offices at Lisbon (LIS), Porto (OPO), Faro (FAO), Madeira (FNC), and Ponta Delgada Azores (PDL) airports, plus city locations in Lisbon, Porto, Coimbra, Braga, Viseu, and other cities.
| Operator | Trustpilot | Pattern (2026) |
|---|---|---|
| Auto Jardim | 4.2/5 | Stable, transparent pricing |
| Best Deal Algarve | 4.7/5 | Strong reputation since 1994 |
| Auto Reisen | 4.4/5 | Iberian local, no upsell |
| Sixt Portugal | 4.3/5 | In-terminal, premium fleet |
| Guerin | Mixed | Polarized — hidden fees + damage disputes recur |
| Goldcar | 1.6/5 | Aggressive upselling |
The most frequent complaint pattern. Customers describe unexpected damage charges discovered post-return — most commonly tire scratches, alloy wheel marks, or undercarriage damage that the customer disputes existed at pickup. April 2026 review specifically mentions “feeling charges were being made up” with no photographic evidence shared at the time of charging.
One January 2026 review documented receiving a €10 actual toll charge that resulted in a total deduction of €125 — a €115 administrative fee on top of the €10 toll. This kind of toll-fee inflation is a recurring pattern. If your rental car has a Via Verde transponder included, the agreement may include a per-toll administrative fee that compounds over a multi-day trip.
Several reviews mention final charges 200-250% higher than the pre-booked online price. This typically happens when extras like full insurance, GPS, or child seats are added at the counter at significantly higher rates than the online quote.
A specific April 2026 complaint: customer paid extra for GPS that was outdated and non-functional, with no refund offered. If you need GPS, use your phone (Google Maps works fine in Portugal with EU roaming).
A 2024-2025 customer reported “excellent, very pleasing” experiences at both Lisbon (2024) and Faro (2025) airport pickups. The challenge is the inconsistency — you cannot predict which experience you will get.
If predictable pricing matters to you, several Portuguese operators have stronger reputations than Guerin in 2026.
Auto Jardim has solid presence at OPO, LIS, and FAO airports plus Madeira. Mid-range pricing with transparent extras and fair damage policy. Best feature: cross-coverage between mainland and Madeira if your trip includes both. The brand reputation is built on consistency rather than the lowest headline rate.
For Algarve trips, Best Deal is consistently among the best-rated locals. Awarded “PME Excellence” for five consecutive years. Customers report straightforward pickup, clean cars, and no surprise charges. Slightly higher than budget operators but lower total cost because all-inclusive pricing.
Auto Reisen operates across Portugal and Spain. Customers praise the no-pressure counter experience and fair damage assessment. Pricing competitive with budget locals but without the extras-trap pattern.
For travelers prioritizing predictability over price, Sixt has in-terminal desks at all major Portuguese airports with the newest fleet. Online check-in saves counter time. Premium pricing 25-40% above locals, but the standardized international experience is reassuring.
Use a comparison platform to see the full Portuguese market with all-inclusive pricing. Filter for “no hidden fees” or “free cancellation”. Most reputable operators show those flags.
Auto Jardim, Best Deal Algarve, and Auto Reisen often have direct-booking promo codes that don't show on aggregators. Check their websites after seeing the comparison baseline.
Counter Super CDW: €18-25/day = €126-175 for a week. Standalone third-party (RentalCover, iCarhireinsurance): €4-6/day = €28-42 for a week. Same coverage, half the cost.
EU roaming is included free with most European mobile plans. Google Maps works perfectly in Portugal. Save €5-10/day by skipping the rental GPS.
Roof, undercarriage, all four tires (treads + sidewalls), alloy wheels. Film the dashboard fuel gauge and odometer with timestamps. Save all video for 60+ days post-rental.
For driving on Portuguese motorways (A1, A2, A3, A22, etc.), you need a Via Verde transponder or alternative toll method. Most major operators include the device but charge a per-toll administrative fee. EU travelers can use EasyToll (€0.74 activation + per-use) at the Spain border for cheaper toll handling.
Mixed. Guerin has nationwide Portuguese coverage but Trustpilot reviews from 2024-2026 show a polarized pattern: some excellent experiences alongside documented complaints about hidden damage charges, inflated toll fees, and post-rental deductions. Better-rated alternatives include Auto Jardim (4.2★), Best Deal Algarve (4.7★), Auto Reisen (4.4★).
Lisbon (LIS), Porto (OPO), Faro (FAO), Madeira (FNC), Ponta Delgada Azores (PDL) airports, plus city offices in Lisbon, Porto, Coimbra, Braga, Viseu and other locations. Headquarters is in Prior Velho near Lisbon Airport.
Hidden damage charges (€100-450) discovered post-return, inflated toll administrative fees (€10 actual toll → €125 charged in one documented case), final charges 200-250% above pre-booked online prices, faulty rental GPS at premium prices.
Yes. A 2024-2025 customer reported excellent experiences at both Lisbon (2024) and Faro (2025) airport pickups. The challenge is the inconsistency — some bookings work smoothly, others end in disputes. There is no reliable way to predict which experience you will get.
Demand a full damage walk-around video at pickup with timestamps. Refuse counter upsells (especially GPS and premium insurance). Photograph fuel gauge and tire treads at pickup AND return. Pay with credit card to retain chargeback rights. Save all email correspondence for 60+ days.
For the Algarve: Best Deal Car Hire Algarve (4.7★, in business since 1994). For nationwide coverage: Auto Jardim (4.2★) or Auto Reisen (4.4★, Iberian local). For premium predictability: Sixt Portugal (4.3★, in-terminal desks).
Skip the rental Via Verde transponder if your trip is mostly within free road zones (Algarve EN125 instead of A22 toll motorway). For unavoidable tolls, use EasyToll (€0.74 activation + per-use) at the Spain border instead of rental transponder fees.
No. EU roaming is included free with most European mobile plans. Google Maps works perfectly in Portugal. Save €5-10/day by using your phone.
Standalone third-party excess insurance (RentalCover, iCarhireinsurance) at €4-6/day instead of counter Super CDW at €18-25/day. Same coverage, half the cost. Buy online before pickup.
Off-season (Nov-Feb) at OPO Porto Airport: economy from €15/day. Faro (FAO) and Lisbon (LIS) are similar in shoulder season. Booking 4-6 weeks ahead saves 30-40% over walk-up rates. Avoid budget operators with documented complaint patterns.
Looking for a reliable Portuguese rental?
We use DiscoverCars to compare Portugal's top-rated operators (Auto Jardim, Best Deal Algarve, Auto Reisen) plus international majors (Sixt, Hertz, Avis) in one place. All-inclusive pricing shown upfront, free cancellation on most bookings, and the platform is rated 4.6/5 on Trustpilot from 261,000+ reviews.
Disclosure: Auto Jardim participates in the DiscoverCars affiliate programme. Our rental company recommendations are based on Trustpilot scores, Google Maps reviews, traveler forum feedback, and direct experience. Our assessment of Guerin is based on review of Trustpilot reviews and TripAdvisor threads from 2024-2026.
Last updated: April 2026. Operator policies and reputations change — always verify directly and check recent reviews before booking.
