I cannot visit Denver without visiting Grandpas!! I was just in Denver for about a week and went 3 times!!! If you have never had a Grandpas burger, you should definitely have 1, or several!! I highly recommend a double meat cheese! Their onion rings are great, I always dip them in ranch!!! Try a shake while you're at it, for the full experience!!! read more

Grandpa's Burger Haven - Just to show how big their burger is!!! Definitely #1 on the big big bun! - Burgers Near Me - Denver, Colorado

After trying to rip me off for more than $12. The fat cook got involved and proceeded to try and rip me off again. He threw my order at me at told me to leave. They would not give me a detailed receipt nor would they explain why they double charged me for sodas and shakes DO NOT AND I REPEAT LET THESE BULLIES RIP YOU OFF!! Terrible terrible customer service read more

Food is absolutely delicious!!! Love the staff always so welcoming when I go! It's a small spot but well worth it! Definitely recommend to everyone who loves good food!! read more

Long wait but well worth it!! Great food!!! it was my first experience with Grandpa's burger Haven I'd recommend it to all my family and friends! young & old!!!!! read more

Grandpas is always a classic big burgers taste like it was from the 80's when I was growing up. Definitely a place to go for a good burger

I really wanted to like this place because I love burger places like this that are small and have been around forever, but after trying Grandpa's I'm not quite sure WHY it's been around forever. The menu was small and concentrated but that's fine. Everything is cooked to order so expect to wait 10 to 15 minutes to get your food. I got the triple cheeseburger plain, as I always do, and when it arrived, it looked great. It was properly cooked. It looked appetizing. I took a bite and... it was almost completely flavorless. The meat had no discernible flavor, nor did the cheese. The bun had a slight bit of flavor, so it wasn't quite as tasteless as the offerings at Five Guys, but still, if I'm going to eat a burger I want it to have some type of flavor. it's as if they had never heard of seasonings when they prepared and cooked the patties. I'm not sure if it's just Denver that likes completely flavorless burgers as you can get similar flavorless offerings from the Cherry Cricket and Snarfburger. But for me, I want a plain burger to taste like something, and there are many burger places in town where you can find them. Perhaps if toppings are your thing, they might be worth a recommendation, but if you like your burgers plain, as I do, you'd best go elsewhere; I suggest Lucy's. I will say the employees were very friendly, and the service was wonderful, so I have absolutely no issues there. read more

This used to be one of my favorite places to go to I haven't been here in about 7 months I just went today about 4:00 and when I tell you that my burger had literally like no meat I mean like my patties missed about maybe 50% of each one completely meat stretched so thin to where it was literally absent in most parts of the Patty and my wife's and kids food look no different so the waste of about $40 don't think I'll be going back here anytime soon. Bring back the old spot. read more

It took 30 minutes to get one burger and it had mold on it. Will not be coming back. hope they get it together. It used to be so much better. read more

Picky eaters of the world unite! How could I not leave a review? Grandpa's is a super quaint little burger stop that I wish I lived so much closer to! The burgers are super run of the mill but nonetheless tasty. And their bigger sized one really is big. For about $12 total I definitely got my fill! I think the only thing I wasn't big on was the fries. And that's not that they were bad I think I'm just used to the super salty fries you'd typically get from a chain fast food place so I would definitely try them if you're alright with adding your own salt! If anything this just made me want to try their onion rings next time! For such a mom and pop type burger place they definitely have a good amount of people willing to wait for their food! This is a really cute place and I would for sure check it out if you're in the mood for a good old classic burger. read more

We were unsure if the drive from Broomfield was worth it. We got two burgers and they were good but not life changing, the large burger is huge!! The onion rings were really good. Probably wouldn't come again but it was fun to experience! Customer service was good and burgers were made fast. read more

Amazing service my grandma has worked here for years and it's amazing I remember coming here everyday food is very good

Pleasantly surprised by this place! The burgers and onion rings were really good! Onion rings were some of the best we've had in Denver. Their burgers are tasty, simple, and huge. We'll definitely go back - it's like an old school, throwback burger joint. read more

Grandpa's Burger Haven - Large Single Meat Hamburger - Burgers Near Me - Denver, Colorado

Good retro burger joint. The patties are very thin so recommend at least the double. Fries were okay, onion rings were very crispy. The milkshakes were amazing! read more

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Average burgers. Not as good as I thought it would be. Kinda sloppy with nasty tomato slices in it. For the price they charge, you could easily find a better burger elsewhere for a better price. read more

Grandpa's is a Denver classic. We treat ourselves to the health abomination once a month and I hope they stay in business forever. Would be cool to add seating or a drive through one day though. Zero frills. PHENOMENAL buns. I like the small double-- large is too much for me and a single patty isn't enough meat. Skip the fries but don't skip the shake! read more

This has got to be the slowest place in Denver. Once you place your order you will wait at least 30 to 45 minutes for your food. (I waited 40 minutes for a burger and fries.) They can't seem to handle even a small "rush" without falling behind. Don't even think of coming here if you don't have an hour to spare. First and last time here. The food isn't worth the wait. read more

Yummm! This place is so amazing, I visited twice in 4 days while visiting Denver. I'm so thankful to the internet for leading me to Grandpa's Burger Haven. The fresh, thin burger patty and smooth, perfect bun are the base for what is one of the best burgers I've had in my life! Definitely up there with all the classics - In N' Out, Five Guys, Shake Shack--Grandpa's Burger Haven can truly hold its own. Their onion rings are INCREDIBLE! They're huge, have the perfect amount of crunchy batter, and feel like a meal on their own. I loved their fries, and the fact that they included salt packets for us to salt at our own discretion. We did end up eating in our car since there's nowhere to sit, but that was half the fun. If you're lucky enough to live in the area, you should DEFINITELY try them out! I know I'll be back next time in town. read more

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Covid-19 review. Ahhhhh Grandpas, I used to come here during high school in the 90s! I was so glad to see its still open and nothing has changed!! While visiting Denver I wanted to get ONLY local food and Grandpas is legendary! The little abuelita taking the orders in the window had her mask on and they offered hand sanitizer on the counter. Signs were posted to keep 6 ft apart and to wait outside for your number to be called. I ordered 2 large burgers and a banana shake to go to share with my folks. They also, hadn't been to grandpas in a long time, my mom loved her banana shake! The burger is a burger, is it the best burger ever? Naw, but its NOT BAD at all. You get all the fixings on it and they don't skimp. Please be sure to visit this old local spot to keep them and their family in business. Slow down on Feds, and turn in to Gramps! read more

BEST onion rings I've had since I moved to Denver. The burgers were great with those thin patties like Freddie's. The a hake machine was down but I did devour a meal with a large fruit punch. Eight months pregnant and I gove it a 10/10. read more

Good giant burger for the price. Unfortunately it's takeout only. Shakes and onion rings are good as well.

I asked for no pickles and add bacon to my burger. I got 4 nasty pickles which dogged the bun! What if I was allergic? Is it that hard to listen? Chilli cheese fries were good, not spectacular, just good. read more

One of the best burgers I've had in the mile high so far. Made to order; fresh ingredients and much more. Will be a go to spot for me for sure read more

Grandpa's Burger Haven - Small triple meat cheeseburger - Burgers Near Me - Denver, Colorado

Grandpa's has been a favorite for about fifty years for me. Order the classic BIG burger, fries and a drink for a complete dining delight.

Grandpa's does the one thing my grandpa (rest his soul) didn't - make an amazing burger. Like my grandpa, Grandpa's doesn't chase the trends like the city-folk restaurants with string lights and neon signs on a grass wall; they know they're better done old-school and they back it up. You order, you don't get hit with a tip screen, & you pay a reasonable price. You wait, get your order, and go in the car and stuff it down. Might even take a picture because of how large the burgers are. But one thing is certain - you won't forget it. Thanks, Grandpa. read more

I was so-so on this old-school burger stand until I tried the Philly cheesesteak. Okay - that's worth five stars to me. Really delicious! The shakes are excellent; the onion rings are excellent. The fries are okay - best when really hot, of course. The burgers are... okay. The steak burgers are better. Two patties are definitely strongly suggested. I should probably try the double steak cheeseburger with jalapeños - that sounds good - but the cheesesteak is so good, I don't know when I'll vary my order. read more

Horrible customer service. Burger under cooked. I spent my money and literally was verbally assaulted and treated like I was a nuisance. This is not the same place it used to be. If I could give less than one star I would. I pulled up and supported this business and was disappointed. Denver what are we coming to? I won't be surprised if this place is on the news for something negative in the months to come. Take your money elsewhere if you work hard for it. read more

If you are looking for a delicious, old school, greasy cheeseburger, this is the place you are looking for. It is literally a hamburger "stand", i.e.there is no place to sit. You walk up to a window and place your order. A few minutes later you are presented with a bag full of amazingly fantastic cheeseburger. This place is worth driving across town for if it's the kind of cheeseburger you're looking for. read more

Grandpa's Burger Haven - Maybe the best cheeseburger in Denver. - Burgers Near Me - Denver, Colorado

The burger was ok .. The fries were disgusting and cold . I also ordered the onion rings- they were saturated in grease . No place to sit other than tables right next to the on coming traffic on Federal. I would never come back read more

I have wanted to try this burger spot for a while and finally did, but I was pretty disappointed. Pretty small on the inside. An order and go with a few picnic tables available to sit down. The bun was so dry and hard it felt more like old bread than toasted on the grill, the hamburger patties are smashed so thin they become crispy, and transparent and you can see the condiments showing through the meat. The French fries were not bad but needed salt! Super sad experience. read more

Really good cheap hamburgers (regular and Large!), hot sandwiches, steakburgers, fries, etc. You know the place- an old greasy spoon, no interior dining hamburger joint! Know that going in, and this place rocks. The kind of place where you know they've grilled burgers on that same grill for decades. Burgers have that great char taste on them. Just good stuff!! read more

This place use to be so great I went there today and I got really ridiculous that's all bread no meat way to go to mess up a Colorado trademark I would not recommend this to anybody read more

Funnily enough a 2-star review led me to this place... Whenever I get the chance, I love finding small local burger places in towns. The thing about it that I like so much about it is that you feel like real people have worked at, eaten at, and heard of these places. It's a local place in history, kept open by hard work. Hamburgers don't make you rich, so you know they do it out of family, friends, or a community pride. Anyway, as I was looking through Yelp I saw Grandpa's-- the reviewers didn't think it was an all-star place, so I decided to read why. A particular 2-star review caught my eye. The first thing it said was, "I've been coming here for 40 years!!" I know they were disgruntled by something, but I couldn't help but immediately be intrigued. "This place has been open for 40 years?!" I thought. I had to try it! Very cute little spot, has a turn off of Federal that feels a bit like the area grew up around it. You order at the window, everything is pretty simple, customer service was pleasant and personal. You get your food and you're off. The burgers were just lovely. Fresh, tasty, and exactly what I was looking for out of a cheeseburger. You did great, Grandpa's! All the other small burger places out there would be proud. read more

Bad service, they'll mess up your order if you don't write it down for them. Their fries are pretty bad, I never order fries there but the lady taking your order is always right. read more

Solid burger joint. Got to at least do a double if you go large. The large single is ridiculous, as it is a thin patty stretched inside a huge bun. Small triple or large double is solid choice. Fries are not terrible. Drink situation is wanting. read more

This is a good place to go and mix up your burger routine. It has a "throw-back-cali-vibe" and an appropriately experienced staff. I suggest getting a large double, "extra everything", add mayo, and bacon. The patties are thin so skipping one might leave your burger a bit dry. Meals comes hot in a paper bag to-go because there isn't really seating. Support your local grandpa, folks! read more

Huge great tasting smash burgers the size of your head! The shakes and onion rings were great as well! Service was good. Food was made to order and fresh. Just be ready to eat your food in the car or take it to the house because it's a no frills burger stand:) read more

Not so good in confirming an order, I asked for a double steak burger without cheese and I got home with a double steak that has cheese, so I starved for the night, I do not like writing reviews but I am not going waste my time ever going there. Good luck and enjoy. read more

Iconic and old? Yes. That's about all they got going. Get ready to eat in your car. I tried this place because I love burgers and it had decent reviews. There burgers and prices are definitely a cruel joke. I was hoping for something different and special. You won't find it here unfortunately. You can pretty much get the exact same burger at the 'Hamburger stand" up the street or McDonalds. People, class up your decision on where you're going to grab a burger, because this isn't the place. (See photos). Be prepared to ask for your condiments ahead of time, because all you get in the bag is a burger and fries. No napkins, salt, Ketchup. ETC... I'm really scratching my head at this place. read more

Grandpa's Burger Haven - Burgers Near Me - Denver, Colorado

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28JUN2014 Knocked off a star. 1. Surly attitude on the part of the order taker. "You can't have a malted shake". 2. No spoons! How can you be out of spoons when you serve milkshakes that require them? We had to use knives to eat our shake. 3. They require that you show an ID to use a credit card. $13 charge and I have to show an ID? Never again. 25OCT2013 Ah, the soothing sounds of South Federal Blvd on a sunny afternoon. I sat at the one and only picnic table and ate my large cheeseburger and spooned a medium peanut butter malted shake into my mouth. While the burger is tasty, it is nothing special. But, the shake is delicious. The shake was constructed with soft-serv "ice cream", a bit of milk, Jif peanut butter (a large spoonful), malted milk powder. I ate the entire "drink" with a spoon as the viscosity remained high the entire time. The service is friendly and the entire establishment reeks of "old school". - No Wi-Fi. - No beer. read more

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Love love love this no nonsense delicious old fashioned homemade burger! I cut the large burger in 1/2 and have two generous servings for two people OR two meals read more