Husbands height? It's one thing if you're 6' tall, but if you're husbands like 5'6" that aint a 2500 calorie daily limit, that's a 1700 calorie daily limit, maybe even closer to 1500.
2->3 beers on the weekend is likely less than the real consumption, but lets say it's 3. That's an extra 150 x 3 calories a week, or 450 calories extra a week. We'll get back to this later.
That 1 fatty coffee per week is not... clear to me. There is a very wide calorie count in coffee, look at this starbuck sheet https://globalassets.starbucks.com/assets/867c147d5dcc46e9afb307093d5172e1.pdf It goes from 150 -> 500, for things that don't even seem like "fatty coffee". If you add more addatives than what is shown here, you're likely to start encroaching into 1000 calorie territory.
And if he's adding any extras at all to the rest of his coffee he normally takes (ie any cream at all) you might be looking at an extra 100+ calories per coffee as well.
As for those protein shakes? First, you shouldn't be drinking protein shakes unless you're actively trying to build muscle mass. If you're husband worked out, or maybe even just started on the job, that would be one thing, but now? If you say it's "very active", it needs to be more than lifting heavy objects regularly and walking a lot. There are lots of construction jobs that won't burn a lot of calories, and over time, doing the same work, you'll be burning less and less calories during the actual work day (but your basal metabolic rate may rise). Upper body work, especially non endurance muscle, also burns surprisingly few calories, it might only net him an extra 100 to 200 burned a day.
What does he mix those shakes with? Water adds no calories, but with milk? You're looking at 100 -> 200 calories just from the milk alone, depending on the percent fat. Then comes the protein shake itself. What brand what type of shake does he use? You know protein also gets converted to calories, another important reason you shouldn't just be drinking protein when you aren't actively trying to increase your muscle mass (or maintain a lot of it through vigorous exercise). A single cup of whey protein contains 66 calories. Using one of the prepackaged protein shakes, you're getting 160+ calories, likely more. If you're using a special supplemental brand not regulated by the FDA, they may even be lying to you about the number of calories.
You're at least at 160 calories per protein shake regardless, likely more. A sparkling water contains few to no calories (unless it actually tastes sweet, then it is more like a soda), but the fact that they choose to drink that instead of just, well normal water, tells me the rest of his water is coming from more non water sources, either something you've not told us (juice, soda, etc...) or those shakes are 2x as big as I assumed, ie more than 8 ounces, meaning the amount of water intake would make sense. For example, 16 ounces of "drink" would double all of the above for a protein shake. The average person drinks 8 cups of water a day (not that they need that specific amount) but this can vary wildly depending on exercise and sweat. Each one of those protein shakes should roughly equal the equivalent amount of water intake.
320 calories per day before anything else.
You don't mention breakfast or lunch, but if we assume a 1700 calorie a day need, you're already down to 1480. I'm going to assume he just doesn't eat breakfast or lunch, though that still seems dubious.
A single meal at a restaurant for dinner can easily exceed 1480 calories. A single "home cooked meal" is nebulous. Where I'm from, this could mean something that exceeds 2000 calories easily. More than a card deck size of meat? A filled plate of noodles/pasta, with some sort of sauce. Any sides? Easily over 1500 calories for a single meal. He eats twice as much as you at dinner? He's eating 2x as many calories, even if you're only eating 700 calories that meal.
But ignoring all of that, lets say he exactly meets his needs for the rest of the week, except for the coffee and beers.
There's 3,500 calories in a pound. After 8 weeks, just his beer intake alone would add up to one pound of weight gain, after a year, it would be 6.5 pounds. If you included the latte, it's double that, 13 pounds a year gain.
TLDR: There's plenty of room in what you said for eating too many calories, even with nothing added, let alone eating more. If they want to eat more, drop the beer and "fatty coffee".