renew &
19th century 'herenhuizen'







Knowledge, Skills & Craftsmanship

Home improvement, extensions, renovations, woodwork, built-in furniture, painting and more. Our services might be varied, but they all come with the same promise of quality, craftsmanship, and durability. Licensed and insured. Our director, Ronald, is an experienced contractor with a Bachelors degree in Building Engineering. We are specialized in 19th-century homes, commonly seen in our classic neighbourhood, the Statenkwartier in The Hague. Affordable luxury is our design philosophy, we love to create expertly crafted and quality spaces. We can offer a 1-year guarantee for all our services, along with free first estimates.




All first estimates are free and flexible according to materials and scheduling.

we love authentic details



Ronald has worked on the major refurbishment of our house. The scope was big: changing all pipes, replastering and painting walls, installing new bathrooms and tiling.
Ronald, a hard working person who did the work himself, was also an excellent overall project manager – his company finished the work on time and on budget and of high quality. But the best was the support he provided after. We would definitely recommend Ronald’s company to people who are looking for a responsible building company.
— George & Saule (expats at Shell), Frederik Hendrikplein, The Hague.
Ronald has completely renovated and modernized our house from 1910. Ronald has thoroughly done everything, a.o. renewed the roof and balconies, replaced the boiler, electrics, gas and the water supply system, double glass, bathroom and sanitary.
Ronald devotes great attention to restoring old details and, where needed, splendidly repaired or even replaced them. We are very satisfied with the results and can warmly recommend Ronald.
— Nic & Laure, Cornelis de Witlaan, The Hague.
People have been complimenting our bathroom nonstop since Ronald designed & constructed it five years ago. It still has that new glow and the tilework is just awesome. You would never guess this space was formerly in use as a dusty boiler room. It’s like a spa now. The perfect retreat from our hectic family life.
Ronald also designed our built-out addition with massive glass french doors to the garden. It transformed our dark living room to a light and spacious room. Now seamlessly connected to the garden. Ronald is definitely capable of adding something remarkable to your home.
— Jan-Willem & Lilian, Brucknerlaan, Rotterdam.



We feel honoured to work with some of the most beautiful houses in the Hague. We restore old houses with utmost care and respect for their historic value. That's why we work with the best materials available. We never compromise quality over time and give our clients realistic schedules that can accommodate their special requests and life circumstances. We provide a 1-year guarantee on all labour. Honest customer care is in our DNA. We strive to leave your renewed home to your complete satisfaction. 


SEE our recent WORK

About us

Ronald Hermanie

Ronald, father of three kids, started helping his dad, Rob Hermanie, when he was fourteen. But even before that he spent his free hours watching him work. He decided to get a degree in building engineering. A major advantage, most contractors in the Netherlands don't have a higher education degree.
In 2011, he left the family business to start his own contracting firm: BLDRS. Specialized in restoring, renovating and redesigning 19th-century 'herenhuizen', as typically seen in his own district, the Statenkwartier in the Hague. 
In total, we've been servicing the Hague, including the Statenkwartier and surrounding areas for over 20 years.