Business ProfileforQuality Remodeling

I reached out to quality remodeling llc and 2 other companies for a bathroom shower remodeling project. After consultation with all 3 companies, I decided to proceed and sign a contract with quality remodeling with a deposit of $3437.05 on January 19th. They came to my house to get the measurements and order parts. The timeline they provided after paying the deposit was delayed. They later came and started the project with demolition and installation of the shower base and told me that they would return in a 48 hour timeframe after everything dries to install the shower doors. They returned 4 days later to install the shower doors after I contacted them several times. When they arrived they told me that the doors now wouldn't fit because my house is old and seems the walls had moved so they needed to now order custom doors and were going to charge an additional $1600 dollars. At that time I made another payment of $2437.05 thinking that would cover the change in supplies. The first glass doors they ordered are still sitting in the bathroom and they claim they cannot do anything with them. I paid for those doors as part of the set ordered and should be reimbursed for them if they cannot be used. They refuse to deduct the cost of the new doors from the cost of the total project. I should not be penalized for paying another $1600 for their mishap. They are the professionals and should know what they were doing. They are now refusing to do any more work until I pay for the new doors. The original quote of $6874.10 has been paid less $1000. So far the only remaining balance I owe them from the original quote is a $1000. I should not have to pay another $1600 for custom doors because of their mistake. Please help me resolve this issue. This was supposed to be a 2 day project but has now been 2 months