Where can I find a detailed quotation list for plumbers, electrical installations and decoration? How to calculate the cost of water and electricity installation?

The price of water and electricity installation is divided into three parts: 1. Powerful electricity installation part. 2. Weak current installation part. 3. Waterway reconstruction part.

1. Negotiate the price of slotting and not slotting

Water circuit renovation is divided into two prices: without slotting and slotting. Some companies also subdivide the slotting price into There are two prices for "non-load-bearing wall grooving and load-bearing wall grooving". The respective prices must be discussed in advance. Plumbing and electrical installations and decorations require more consideration in this area.

2. Weak current installation materials and installation prices

1. Cables: wires used for telephone lines, network cables, TV cables, stereo cables, audio cables, video cables, background music, etc.

2. Wire conduit: PVC rigid flame-retardant electrical pipe diameter D16 wire conduit 3 weak current (telephone, TV network cable) through the pipe separately. Switch socket bottom box 86 type 10 yuan / piece; 118 type 15 yuan /indivual. Adding a 16-channel information integrated box costs an additional 160 yuan/set. Make sure there are no joints in the pipe, fill the grooves with gypsum or cement mortar after burying the pipes. Hidden tube price: 28 yuan/meter. Exposed tube price: 18 yuan/meter.

3. Strong current installation materials and prices

No more than 3 wires should be threaded in the flame-retardant electrical pipe. If there are more than 3 wires, an additional 5 yuan per meter will be added. There are no joints for the wires in the pipe, and a junction box is used for the branch points. The bottom box of the switch socket is 10 yuan per box for type 86; 15 yuan per box for type 118; 10 yuan per meter for 4 square meters of wire. Multiple pipes in the same slot are billed as multiple hidden lines. After trenching and burying the pipe, fill it with gypsum or cement mortar.

Concealed pipe: 35 yuan/meter

Exposed pipe: 25 yuan/meter

4. Waterway installation materials and prices

1 , a.20PP-R water supply pipe (concealed installation): 60 yuan/meter b.20PP-R water supply pipe (surface installation): 45 yuan/meter c. Sewer installation (50PVC pipe): 60 yuan/meter PS: PP- R tube is Weixing or Jinde tube. The drainage pipe is a Liansu pipe

2. a. Each meter contains one equal-diameter and one reducing-diameter pipe sleeve, and one 90-degree elbow. b. Does not include valve hardware; c. Add 10 yuan per meter for 25 water pipes; d. If less than one meter is calculated, it will be calculated as one meter; e. There is an additional charge for drilling, 40 yuan/unit for load-bearing walls, 20 yuan/unit for non-load-bearing walls 6 PP-R pipes are all hot water pipes with a skin thickness of 2.8. f. If the sewer pipe is calculated as 50, if it is greater than 50, it will be negotiated separately.