10 Most Expensive Mistakes When Renovating a New Building (Novostroyka)
Published: March 10, 2026
Don't Let Your Dream Apartment Become a Money Pit
Receiving the keys to a brand-new apartment (novostroyka) is an exciting moment. However, the blank canvas of a rough finish hides numerous traps. Many homeowners rush into the renovation process without proper planning, leading to disastrous financial consequences. Here are the most expensive mistakes you must avoid.
1. Ignoring Building Shrinkage
New buildings settle over the first 2-3 years. If you immediately install expensive rigid materials like large-format porcelain tiles without expansion joints, or rigid plaster ceilings, they will crack. Always use fiberglass mesh for walls and consider stretch ceilings for the first few years.
2. Poor Electrical Planning
Adding a socket after the walls are painted means destroying the finish. Plan your furniture layout first, then design the electrical grid. Ensure you have dedicated lines for heavy appliances like ovens and air conditioners. To budget your electrical work accurately, Calculate your exact renovation cost for free with Jondeu.
3. Skimping on Plumbing Materials
A burst pipe hidden behind expensive tiles will cost you the price of your renovation, plus the cost of repairing your neighbor's apartment below. Never buy cheap, unbranded pipes or stop valves. Invest in high-quality PEX pipes and reliable manifolds.
4. Skipping Soundproofing
Modern monolithic and brick buildings often have terrible acoustics. If you don't install soundproofing on the floor and shared walls during the rough finish stage, you will hear every step your neighbors take. Fixing this later is nearly impossible without a full tear-down.
5. Trusting Blind Estimates
Accepting a quote written on a napkin is a guaranteed way to overpay. Unscrupulous crews will lowball the initial price and add "unforeseen" costs later. Always demand a line-by-line estimate. Better yet, Calculate your exact renovation cost for free with Jondeu to know exactly what the market rates are.
Other Critical Mistakes:
- 6. Incorrect door measurements: Ordering doors before the floor screed is poured leads to doors that don't fit.
- 7. Ignoring ventilation: Sealing the apartment with plastic windows without adding fresh air valves leads to mold.
- 8. DIY waterproofing: Bathroom waterproofing must be done by professionals to prevent catastrophic leaks.
- 9. Buying materials too early: Storing laminate in a damp, newly plastered apartment will ruin it.
- 10. No supervision: Leaving the crew unchecked leads to hidden flaws that surface months later.
Conclusion
Renovating a novostroyka requires patience, planning, and strict financial control. By avoiding these 10 mistakes, you will save millions of tenge and preserve your peace of mind. Always plan ahead and use reliable tools to verify your costs.