The title tag is the headline of your listing on the results page. Stuffing it with keywords tells Google nothing it did not know from the page, and it reads like spam to the person deciding what to click.
A formula that holds up
Lead with the specific promise, keep it under about sixty characters so it is not cut off, and put the brand at the end where it reassures rather than takes up the space. Kitchen renovation costs in Prishtina, explained | HOX beats Kitchen Renovation, Kitchen Costs, Renovation Prishtina.
Check what you are competing with
- Search the keyword and read the ten titles above and around yours.
- Say something none of them say: a number, a year, a location, an outcome.
- Watch the click-through rate in Search Console for a month before judging the change.