Renovating your apartment is a stage that unites ideas, demands investment and sometimes brings stress. We turn that idea into a project worthy of your ambitions.Renovatingyourapartmentisastagethatunitesideas,demandsinvestmentandsometimesbringsstress.Weturnthatideaintoaprojectworthyofyourambitions.
Support in three steps
From the first description of your project through to handover.
01
Study of your project
Describe your architecture or renovation project to us, we estimate it for free and submit it to our network of certified contractors.
Free estimate
02
Search for the best craftsmen
Once your project is validated, we offer you several quotes from contractors certified by our teams and help you choose the one best suited to your needs!
Several quotes compared
03
Support during the works
You meet the ideal craftsman chosen for you. We secure your project from its signing and support you throughout the site until completion.
« Co'Building supported me in defining and carrying out the works on my new apartment in Boulogne. I was very satisfied with both Mickael and the team of tradespeople, who were highly professional and pleasant to deal with. The works were completed on time and within the budget agreed with Co'Building. I highly recommend them. »
« We are extremely satisfied with Co Building's support for the complete renovation of the apartment we bought. Mickael put together a clear, detailed quote perfectly suited to our project, covering every trade involved: electrics, plumbing, insulation and so on. It was a full renovation, with the apartment stripped back to the shell before being entirely rebuilt, and we particularly appreciated his ability to guide us at every stage towards the right choices, both technically and financially. Despite the surprises that are inevitable on this kind of project, the budget announced at the outset was respected. Carlos, the site manager, was very respectful of the communal areas. The materials used are of very good quality, and the workers were professional, careful and very pleasant. Three months after moving in, we are still completely satisfied and recommend Co Building without hesitation. »
« The experience with Co'Building was ideal. Mr Marin supported me from start to finish, whether it was finding tradespeople, putting a little pressure on them the rare times it was needed, or suggesting layout and decoration ideas. A works schedule was drawn up right at the start and, despite additions made at my request (taking down an archway, adding a false ceiling, an extra radiator and more power sockets), the timing was kept to. The tradespeople were very professional and the work is beautifully clean. I dropped by unannounced several times and there were always at least three people on site. Honestly, it went so well that I can only recommend them. »
« Complete peace of mind for our first renovation! We bought our first apartment in the summer of 2024 and everything needed redoing. Mickael came with us for the second viewing and gave us excellent advice, and we then carried out the renovation with Carlos and his team. Everything was perfect, and the deadlines were met despite the constraints of the Olympic Games. The overall price was very competitive for the Paris market. I highly recommend Co'Building's services. »
« I strongly recommend them! I wanted to redo my apartment but, knowing nothing about the subject, I wanted to take the time to find the right company. Co Building was incredible, with Mickaël answering all my questions quickly and clearly. His teams are efficient, meticulous and fast. I would not hesitate to call on this company again. Thank you again Mickaël for your work! »
« A company that delivers quality work and brings real expertise to renovation. Mickael is highly committed and available throughout the project. I strongly recommend them! Especially if, like me, you know nothing about the subject: you can go ahead with complete confidence, he works with total transparency. »
« I have just finished my renovation, which was handled by Mickael from Co'Building, and thanks to him everything went very smoothly! Mickael is professional, conscientious and a great listener, and he advised me on many important points throughout the works. I recommend him! »
« I contacted Co'Building on a recommendation for the renovation of my apartment. I am more than satisfied, both with how available the tradespeople were and with the quality of the work. I would not hesitate to turn to them again for my next projects. »
« A very good experience with Mickael! I highly recommend him. Very professional and attentive, he redid my bathroom by combining what I needed with his own expertise to get the best possible result. »
« The team was very professional and the works were finished on time. Thank you for your work! The result is magnificent! I strongly recommend them. »
« Co'Building supported me in defining and carrying out the works on my new apartment in Boulogne. I was very satisfied with both Mickael and the team of tradespeople, who were highly professional and pleasant to deal with. The works were completed on time and within the budget agreed with Co'Building. I highly recommend them. »
« We are extremely satisfied with Co Building's support for the complete renovation of the apartment we bought. Mickael put together a clear, detailed quote perfectly suited to our project, covering every trade involved: electrics, plumbing, insulation and so on. It was a full renovation, with the apartment stripped back to the shell before being entirely rebuilt, and we particularly appreciated his ability to guide us at every stage towards the right choices, both technically and financially. Despite the surprises that are inevitable on this kind of project, the budget announced at the outset was respected. Carlos, the site manager, was very respectful of the communal areas. The materials used are of very good quality, and the workers were professional, careful and very pleasant. Three months after moving in, we are still completely satisfied and recommend Co Building without hesitation. »
« The experience with Co'Building was ideal. Mr Marin supported me from start to finish, whether it was finding tradespeople, putting a little pressure on them the rare times it was needed, or suggesting layout and decoration ideas. A works schedule was drawn up right at the start and, despite additions made at my request (taking down an archway, adding a false ceiling, an extra radiator and more power sockets), the timing was kept to. The tradespeople were very professional and the work is beautifully clean. I dropped by unannounced several times and there were always at least three people on site. Honestly, it went so well that I can only recommend them. »
« Complete peace of mind for our first renovation! We bought our first apartment in the summer of 2024 and everything needed redoing. Mickael came with us for the second viewing and gave us excellent advice, and we then carried out the renovation with Carlos and his team. Everything was perfect, and the deadlines were met despite the constraints of the Olympic Games. The overall price was very competitive for the Paris market. I highly recommend Co'Building's services. »
« I strongly recommend them! I wanted to redo my apartment but, knowing nothing about the subject, I wanted to take the time to find the right company. Co Building was incredible, with Mickaël answering all my questions quickly and clearly. His teams are efficient, meticulous and fast. I would not hesitate to call on this company again. Thank you again Mickaël for your work! »
« A company that delivers quality work and brings real expertise to renovation. Mickael is highly committed and available throughout the project. I strongly recommend them! Especially if, like me, you know nothing about the subject: you can go ahead with complete confidence, he works with total transparency. »
« I have just finished my renovation, which was handled by Mickael from Co'Building, and thanks to him everything went very smoothly! Mickael is professional, conscientious and a great listener, and he advised me on many important points throughout the works. I recommend him! »
« I contacted Co'Building on a recommendation for the renovation of my apartment. I am more than satisfied, both with how available the tradespeople were and with the quality of the work. I would not hesitate to turn to them again for my next projects. »
« A very good experience with Mickael! I highly recommend him. Very professional and attentive, he redid my bathroom by combining what I needed with his own expertise to get the best possible result. »
« The team was very professional and the works were finished on time. Thank you for your work! The result is magnificent! I strongly recommend them. »
You describe your architecture or renovation project. We estimate it free of charge, then put it to our network of certified contractors.
Contractors certified by our teams. Once your project is confirmed, we bring you several quotes and help you choose the one that best fits what you have in mind.
From the first day through to handover. We secure your project as soon as it is signed and stay alongside you for the whole of the build.
Yes. Studying your project and estimating it are free, before you commit to anything.
We work with more than twenty partner agencies. The simplest route is to describe your project: we will tell you quickly whether we can take it on.
Yes. Our free energy check gives you, in two minutes, an estimate of your EPC band and the priority works to move it up.
See this work in place
