更新： 前几天得到大家的很多好建议，先谢谢了！现在我们让licensed contractor报价，方案号称是最简单的那种（把closet拆了改淋浴房）。大家帮我看看这个报价合理吗？工程$18000, DOB报案$6000, 讲价到一共$22000, 材料要自己买的，是一个白人contractor. 这个价钱怎么样？是否一定需要向DOB报案？还有什么地方可以省下钱来？ The detailed descriptions of the project are as follows: Demolition and Permit $2,500  Remove the wall separating the closet and powder room  Remove the closet doors  Contractor responsible for general construction permit  Provide RAM board, plastic zipped curtains, brown paper and plastic covers to protect the floors, stairs and walls along the hallways as needed and other wood floor part of the apartment that may not be needed to be refurbished General Construction $10,800 Bathrooms walls and ceiling $4,000 1  Supply and install metal studs to frame the new shower stall  Supply and install cement boards (Durock) on the walls around the tub 8' high  Supply and install green moisture resistant drywall all the rest of the shower stall  Supply and install green moisture resistant drywall on the ceiling  Supply all materials for taping, compounding, sanding and primer  Supply and apply liquid moisture barrier on the cement board around the tub  Supply and apply moisture resistant semi gloss paint for the ceiling  Install customer supplied new shower rod if any  If custom shower door is used installation done by others Bathrooms Tiling $2,000  Supply all thinset, mastik glue and sealer  Customer to supply all tiles  Install wall tiles to the ceiling of the shower stall  Supply and install 3/4 plywood for the sub floor  Supply and install rubber shower liner  Supply and install wire mesh and tar moisture barrier paper  Supply and install mud work for the floor  Install floor tiles over a new mud work  Install customer supplied saddle  Apply grout and sealer  Caulk all corner to prevent cracking Electrical $800  Install customer supplied moisture proof recessed light in the shower ceiling  Install separate switch for this light  No permit needed for this section of work Plumbing $5,000  Supply all necessary no hub cast iron drain pipes, copper pipes and fittings  All fixture will remain on its original positions  Provide air vent for all the drains  Install customer supplied shower body and trims  No work to be done on the toilet and sink area plumbing  Plumbing permit, inspection and sign off included The cost for these allowances are provided by the customer and is not included in the construction breakdown cost above. Bathroom shower fixtures, tiles, accessories and light fixture $2,500 The detailed descriptions of the project are as follows: Architectural/Expediting  Provide sets of drawings needed for job filling application  Architect professional plan review and approval included  Prepare all form for the job filling application with the NYC DOB  Expediting service to the NYC DOB  Plan filling and plan approval with the NYC DOB  Any general contractor and plumbing permit needed is NOT included  Technical Report TR1, controlled inspection sign off is included  NYC DOB filling fees NOT included  Asbestos inspection and report - ACP5 NOT included  Job closing and sign off  Issuance of Letter of Completion  The NYC DOB application will be filed as Alteration Type 2, Self Certify DIR 14  Drawings are to be done only on the area and floor that needs work  No physical plumbing or general construction work included in this proposal