I am constantly blown away by the variety and freshness of the offerings at this light, airy, friendly Asian restaurant​. This visit, we choose two specials, a tempura shrimp pad Thai and the Chinese sausage fried rice, and both were delicious. The winner, though, was the sweet and sour pork off the menu. Completely unlike the gummy stuff you get in most places, this dish really allowed you to taste the sweet AND the sour. We thought we were over-ordering, but at the end of our meal it was all gone. Don't miss this tried and true Thai for the new places that cost way more!

I've gotten lunch here a 3-4 times (take out). The man that sits at the front is very nice. I've only gotten the green curry, which is very good. Although, the quality can vary. Most of the time it's delicious but one time it was definitely a little flavorless. I have been there since, so that hasn't stopped me. They take cards which is really convenient and they are always very quick. Would recommend.

Best Thai have had so far. Quite inconspicuous place in Marlborough but we'll worth a try! Highly recommend the duck!

Tried this place randomly today. Glad I did!

We ordered the Crab Rangoon special and a couple of dishes to share between 3 people. The Rangoons came very quickly and were amazing, which caused us to order more. Add soon as we did, the entrees came out.

With speed like that, you would think the food want good, right? Frankly, it was some if the best Thai I've ever had! Everything tasted fresh, well seasoned and full of flavor.

They have an upstairs which want being used, but the bathroom is up there, so I did have a look. The upstairs is charming. Just as clean and well finished as the downstairs. The view over the lower area is quite nice too, it would be a lovely place to hold a party.

The bathroom was clean, spacious and well supplied.

It it easy to pass by this restaurant as I have often done, but you really will be missing out on a well priced, fantastic meal.

5 tables for lunch while I was there for 3 hours to meet a friend. Service was fast. The food tasted just ok. Not sure I would go again unless friends want to.

Always very flavorful. Their curries are very distinct and taste pretty authentic. Their sate is an excellent healthy option with the perfectly seasoned peanut sauce. There's something for everyone here.

Chicken Rama in dinner special=boiled veggies and chicken with a peanut sauce on the side not tasty and would not recommend it.
Other dishes I tried are penang curry and masaman curry and they are average.
I eat very spicy food and could not handle spice level 3 here. So be cautious if you want to order very spicy food.

I wanted to rate 3 1/2 stars, but thought twice about my objectivity.

The Pad Thai was very white, anemic and dry - meaning it was short on the sauce- even the chicken was bland and very white (there was no sauce or flavor to take on)
When I asked for more sauce I was I formed they could not bring more sauce because it was cooked in. I get that. Perhaps next TimR I will request that my dish be prepared with More sauce in the cooking process.

The higher marks go to the Curry dishes; my wife and daughter both loved the Yellow Curry and would come back.

I thought it was funny to notice that the soup that accompanies the entree is made of money other than “Top Ramen” type noodles (.20 cent a pack?)

Best Thai have had so far. Quite inconspicuous place in Marlborough but we'll worth a try! Highly recommend the duck!

Good food at a good price. We had Pad see ew and drunken noodles.

Placed an online order for delivery at 10PM and was told I wouldn't get the food until 1AM. What a joke.

I don't care about the place.

I am constantly blown away by the variety and freshness of the offerings at this light, airy, friendly Asian restaurant​. This visit, we choose two specials, a tempura shrimp pad Thai and the Chinese sausage fried rice, and both were delicious. The winner, though, was the sweet and sour pork off the menu. Completely unlike the gummy stuff you get in most places, this dish really allowed you to taste the sweet AND the sour. We thought we were over-ordering, but at the end of our meal it was all gone. Don't miss this tried and true Thai for the new places that cost way more!

Staff was very knowledgeable about the ingredients in each dish, making it easy to order with my dietary restrictions. They had amazing recommendations for appetizers, and all of the food was delicious! Highly recommend!

Stopped in recently and had a great meal. The food is amazing, very flavorful. The host was very gracious and accommodating and the service attentive. Loved my beef Masaman Curry and chicken Pad Thai. Took home some chicken Gra Prao (she likes it spicy). Would highly recommend!

Never disappointed. Great food & Service.

If you like plenty of food this the right place.
Timely food prep too.

Great food and service !!

Always excellent. The food is amazing and fresh, the service is timely and kind. Honestly, the best crab rangoon I have ever had.

5 tables for lunch while I was there for 3 hours to meet a friend. Service was fast. The food tasted just ok. Not sure I would go again unless friends want to.

We have been enjoying Chez Siam for over 10 years now and find the service and food to be top shelf. 👍👍

My go-to for thai food. Excellent food, always fresh and the staff is always friendly.

The Thai food was very good. The ginger and mushroom dishes had sliced ginger that was very pungent. The cashew beef and the asparagus royale were filled with very fresh vegetables

Went there on a Tuesday and only one other person was dining. I ordered the basil pad Thai. The flavor seemed different, almost not right. There were only two small shrimp and four pieces of chicken (the size of a quarter). Service was ok.

Their food are not like before. It had changed so much that I don’t really want to eat here anymore. They used to have a lot of customers but I see why there aren’t a lot of people there. I feel so bad for them but they really need to improve the quality of their own delicacies.

Love this place! You can't go wrong here.

Love everything in the menu

I really enjoy the Pad Thai here.

Love the avocado cups

Fabulous Thai food. Family owned. Kind and courteous staff. Seafood Fried Rice. Pad Thai. Golden Cup. Garden Rolls. Love it! Love it! Love it!

As a New Yorker with incredibly high standards - Chez Siam is excellent! You will not be disappointed!

My go to place for thai food. Their red curry and pad thai are so food. Duck is great as well. Generous portions. Great value too. I love it that after 32 years nothing changed.

Have loved this place for years, staff is friendly, food is great!

Guy at the front desk is really nice. Walked in at 9 to order take out. They cooked it quick. Really good red curry and the rice was perfectly cooked.

When ordering I ordered a chicken pad Thai, drunken noodle and crab Rangoon. After I got home I received all the above plus a pad thai. I called to let them know they pretty much over charged me and was dismissed saying that I didn’t listen when he repeated the order. Oh ya, I also left a very generous tip and was told to F off, more or less. Place much be dying for business not to refund on a miscommunication.

Food was amazing. Had a pad Thai that was fantastic. Server was accommodating to my gluten allergy and knowledgeable. Curry had a great flavour to it.

The restaurant was very clean and the Thai food was delicious. The vegetables were crispy. It is a simple place but the food is very good.

Very, very tasty and fresh food. Quick, friendly service. The owner was especially nice. Everything was clean. A wonderful dining experience! Highly recommend

Cool

I have been eating at Chez Siam since it opened. The food always delicious there are lots of choices, and interesting specials.

Other Thai restaurants have opened around here lately but but Chez Siam is always my first choice. Try it. You won't be disappointed.

Used to live five minutes from this restaurant and every Friday night my wife and I would order shrimp basil and fisherman pad Thai's. The food is so good and unfortunately my wife and I haven't had any Thai food that compares.

The Roast duck was probably the best I’ve ever had! The dumplings and chicken satay were very fresh and good. Highly recommend this place to anyone looking for good cuisine in the area at a reasonable price. The owner Chris is super friendly as well!

Best pad thai on Earth, and possibly other planets as well. Also, I had this peanut butter spaghetti kind of stuff, which sounds wicked weird and gross, but OMG it's amazing. Eat here.

Delicious food and friendly staff! Thai Iced Tea!!!

Great Thai restaurant in a hidden area.

Not worth the ratings. This place sucks big time. The restaurant was completely empty. The food was below average. Moreover, the waitress does not accept the tip you give and demands a particular amount as tip. I completely understand the purpose of tips but I dont think it is right to demand the customer deliberately a particular amount and scream for tips. Very unacceptable behavior by the waitress. I will never go back to tis place.

The chicken was undercooked. Otherwise the food was decent. But even after paying a tip the waitress was fighting with us for more tips and acted very rude. Would never go back to this place.

The most amazing food and even better people! If you are reading this, go right now and get yourself a perfect meal served up by the best!!

The tom yum was great (just the right amount of spice!), and the chicken skewers were excellent with the coconut sauce. Very courteous staff. Definitely recommend it.

I wanted to rate 3 1/2 stars, but thought twice about my objectivity.

The Pad Thai was very white, anemic and dry - meaning it was short on the sauce- even the chicken was bland and very white (there was no sauce or flavor to take on)
When I asked for more sauce I was I formed they could not bring more sauce because it was cooked in. I get that. Perhaps next TimR I will request that my dish be prepared with More sauce in the cooking process.

The higher marks go to the Curry dishes; my wife and daughter both loved the Yellow Curry and would come back.

I thought it was funny to notice that the soup that accompanies the entree is made of money other than “Top Ramen” type noodles (.20 cent a pack?)

Though I think the food is decent, I did not like the fact that the waiter asked for more tip than we had offered. I fully understand why tips are needed..But at the same time, it's not an obligation to pay what the waiter thinks he deserves. And, this is not the first time the same waiter has done this. It left a bad taste, a second time.

Very tasty Drunken Noodle and Chicken Gra Prao. Looking forward to trying more from the menu soon.

Food is delicious, especially the cashew vegetables. The duck is excellently flavored too. Unlike other asian restaurants, this place does not overload on the greasy sauces, and also does not use MSG in it's flavorings. The personnel are also extremely friendly and enthusiastic.

This restaurant had great food and the waitress was very pleasant! This was my second time eating here and I would definitely return 😋!!

This is our go-to stop for lunch and the curry and pad thai are always delicious!

Thai Food - Open for indoor seating (call for reservations) & takeout. The food is Delicious! I have eaten here many times. Recently ordered a fish dish and fish was extremely fresh. Atmosphere is relaxed but tables have tablecloths and cloth napkins - a nice touch. Owners are lovely! Casual dress

Best thai food in the area

Great staff. They know me when I go there. They have gluten-free items. Wonderful food

Nice place..
Delicious food
Nice people.

Consistently good food. They have a great variety of curries and appetizers. The spice is right! Very clean and committed in terms of Covid management.

The yellow curry is amazing, the chicken is very dry but the curry broth is so good you could eat it all alone.

BEST pad Thai in the Marlborough/Sudbury area!! Fresh ingredients, noodles cooked to perfection and nice peanut crunch. Don't miss this place!

Excellent food, fresh ingredients, nice soup, and excellent service.

Best Pad Thai!!!!

Really great food. Friend rice is far better than any around this area. All the food is great. Unfortunately I can't do d you on doordash anymore. :(

Amazing Pad Thai, full take-away menu, family run, highly recommended!

Decent food with inexpensive dishes.

Love their chicken pad Thai and prik King meal. Also, the owner is very nice too. Best Thai food in town. Sometimes I want my dish custom and they always deliver. Thank you !!

Absolutely love this place. Best Pad Thai around hands down. Quality is always great.

Great food and very nice owner!!

I've gotten lunch here a 3-4 times (take out). The man that sits at the front is very nice. I've only gotten the green curry, which is very good. Although, the quality can vary. Most of the time it's delicious but one time it was definitely a little flavorless. I have been there since, so that hasn't stopped me. They take cards which is really convenient and they are always very quick. Would recommend.

Chicken Rama in dinner special=boiled veggies and chicken with a peanut sauce on the side not tasty and would not recommend it.
Other dishes I tried are penang curry and masaman curry and they are average.
I eat very spicy food and could not handle spice level 3 here. So be cautious if you want to order very spicy food.

I first ate at this restaurant in 1992. I have been back quite regularly. The food has always been good, the service is pleasant, and the place is spotlessly clean. There aren't too many $$$ places that will change the table cloth after each party leaves - this is one of them that does.

Vegetarian options are very good.

Definitely worth a visit.

I didn't like the food, for my taste wasn't fresh. The hosted was the only person and waitress as well; so she demand more tip, she mention 15% wow, first and last time.

Always very flavorful. Their curries are very distinct and taste pretty authentic. Their sate is an excellent healthy option with the perfectly seasoned peanut sauce. There's something for everyone here.

Best local cuisine/restaurant in Marlborough....The Phantom Gourmet recently rated this establishment and indicated that the food is top-notch quality.

The food is ornately prepared and tastes 😋 delicious...

The portions are very generous, and are moderately priced.. The location can be congested at times because it is directly off of Route 20, but nonetheless is superior in quality and taste...

Came here a couple of times. Food and service can be inconsistent.

Good food convenient location nice staff

Great Thai restaurant. Best in the area.

Always good tasty Thai food at a reasonable price. I love their Pad Thai. Highly recommend!

Great spring rolls and pad thai. Bright, clean restaurant with friendly service.

The best thai food, bar none. We have tried all the others. Always go back to Chez Siam!

Several duck selections on the menu make Chez Siam a worthwhile stop, but not the only reason. Authentic food, comfortable setting and great service. Parking can be tight in this mini-mall. Rest rooms are upstairs so may not be handicap accessible.

Good restaurant with nice ambience. Food is delicious as well

Excellent place to grab a good lunch. Food and staff are excellent. Recommend Drunken noodles and Basil pad Thai

Great service and food

Service and food ok, I was expecting more considering the reviews here. The pad thai was very plain, not to much flavor. I had to go get the pepper sauce they offered because the waitress did not offered to us. She started to organize the tables near ours before 9:00 PM. We feel like we had to finish our dinner fast because they were closing. Maybe I didn't have a great experience because it was Monday night (?). Maybe I will try this place again because I know it is important to support local business.

It's not easy to get the spice combination just right, but they managed. I'll be back.

Delicious! The food is always amazing and fresh. The service is so fast and friendly! I'm not a person that goes out to eat alot, but when I do, Chez is the spot! They're servings are generous and prices are affordable. Everything on the menu couldn't be better :)

This is an excellent authentic Thai restaurant, there's not much like it around here.

Always very good food. Love the Tom Yam soup with shrimp. Very nice staff too.

Reliable Thai food. Groups from work eat lunch here often and I don't remember anyone ever being unhappy with their dish. I love the fisherman's pad thai or fisherman's fried rice and the seafood is always fresh and tasty. Others in our party like the spicier sauces that you can supplement to be as hot as you like! Staff is friendly. Dishes come to the table 1-2 at a time as they are done, but usually over a short period of time!

it makes me poop for days

Not maintaining proper timings and not responded properly.....didn't allow us inside though arrived by 9:20 PM. Should have changed their closing time as 9:30 instead of 10.

Good eating

Love this place!!!! My friend's family owns it and they are always friendly and they sometimes give a discount to us when we go because we know them. The food is delicious, especially the chicken yellow curry! Wish I could eat here more often! To Holly who made a bad review down below, everyone who works there is friendly and there has been an elwvator in the restaurant for a long time so the bathroom is handicap accessible. Definitely deserves 5 stars!!!!!!

We have made this our monthly go to for Thai food and drunken noodle chicken and or pork
We've tried several times I restaurants between Worcester and Marlborough and this is our regular stop

Amazingly fresh and delicious food. If you're new to Thai food the golden cups and chicken satay (def use the peanut sauce!) are a MUST TRY! This place is a hidden gem!

Have been eating their vegetarian Pad Thai for years and it's the best I found, delicious

Very good food and great service

Very good, tasty Thai food

It is good thai place in Marlborough. I loved fried rice and fish dish here. Not very crowded at lunch times and frinedly staff.

My favorite Thai food around, good prices and the food is marvelous!

Nice Thai food at good price

Best Thai food I’ve had in years. Better than the Thai I had in Malaysia and Thailand. Great house pad thai and many many other dishes.

great place pad Thai is one of the best ive had. if you haven't tried eating here do it.

Good food

What can I say? Absolutely horrid service. We got there after ten minutes of being opened and the door was still locked. She opens the door with the most unwelcoming presence and a terrible grimace. The aroma of this restaurant was not of tai food, but of moth balls, grime and dust. It's very apparent to me now that the emptiness of this restaurant was for a good reason. The bathrooms wasn't even handicap accessible. My poor handicapped grandmother had to walk all the way to a sketchy laundry mat to use the ladies room. To begin, when we were seated as a party of 5, the server working slammed two tables together in a very disorderly and unwelcoming manner. She left us for a solid 15 minutes without any plates, silverware, napkins let alone drinks. As soon the waitress came to the table, she not only rushed to take our order but answered the phone to take a full order. How rude. When she continued our order she made it seem like an inconvienence when we had food allergies. Overall we gave her a tip of three dollars, a reasonable amount for our experience, to which she had the audacity to demand more money.

Local hot spot for the most been around forever

Walked in to order take out. Got pad Thai and golden triangles. The food was very good and the man at the front desk that took my order was so nice, he asked if I wanted chopsticks and recommended a small side of spicy sauce to put on my pad Thai that made it so good. Thanks for the great food and service :)

Always fresh veggies. Friendly staff. Delicious food. Best Thai restaurant in the area. I've tried them all. I'll always come here for quality.

Delicious food, fair pricing, easy to park.

Tried this place randomly today. Glad I did!

We ordered the Crab Rangoon special and a couple of dishes to share between 3 people. The Rangoons came very quickly and were amazing, which caused us to order more. Add soon as we did, the entrees came out.

With speed like that, you would think the food want good, right? Frankly, it was some if the best Thai I've ever had! Everything tasted fresh, well seasoned and full of flavor.

They have an upstairs which want being used, but the bathroom is up there, so I did have a look. The upstairs is charming. Just as clean and well finished as the downstairs. The view over the lower area is quite nice too, it would be a lovely place to hold a party.

The bathroom was clean, spacious and well supplied.

It it easy to pass by this restaurant as I have often done, but you really will be missing out on a well priced, fantastic meal.

The food here is always fresh and delicious. My favorite Thai restaurant out of all the ones I've tried.

Wonderfully fresh and delish!

Next pad Thai

Best Thai Food, I love their menu and the staff. Dining room is bright, parking is a little tricky during peak hours but worth it!

Awesome local Thai food!

Great to food in the area. Fast service and nice people.

Fast service and good food... Not very spicy though.

Lunch is the best meal to have here because you get a free cup of chicken noodle soup in this amazing garlic chicken broth. You can only get it at lunch no idea why they do not sell it. Had basil pad thai which is slightly spicy at 3 chilis. Large portions normally good for 2 lunches if you don't stuff yourself. Good local thai with friendly staff