Rough-in is the stage of a construction project when the various
The rough-in valve is the heart of system. This is the part of your shower system, in-wall faucet or deck mounted tub filler that lives behind the wall, precisely controlling water temperature and volume.
Rough-in is the practice of installing mechanical, electrical and plumbing services into a home prior to completion but not connecting them until afterwards. This process calls for an existing foundation in order to be implemented properly.
New construction plumbing generally fits into two categories, rough in plumbing and finish plumbing. Rough-in plumbing is the process of installing vents, sewers, connections and waterlines. During the finish plumbing phase, plumbers will finish installations and connections to get the home ready for use.
Rough-in size refers to the distance from the center of the toilet's drain or waste outlet to the finished wall behind it. If the rough-in size doesn't match the dimensions of the toilet, it won't fit properly. Typically, the standard rough-in size is 12 inches, though older homes may have 10-inch or 14-inch rough-ins.
The standard rough-in dimensions for toilets is 12 inches. In older homes or small bathrooms, you'll sometimes see rough-in dimensions of 10 inches or 14 inches. Determine your bathroom's rough-in by measuring from the wall behind the toilet to the middle of the bolts on the base of the toilet.
Generally, it is recommended that you purchase a new toilet with the exact rough-in measurement as the original toilet.
Most spend between $3,000 and $20,000. The average cost to rough-in plumbing for a bathroom is $6,500. However, it can range from as low as $3,000 to as much as $20,000. The final price depends on the piping material, bathroom size, labor fees, number of fixtures, and more.
Plumbing Rough Ins and Rough Carpentry
The plumber needs to rough in pipes and drains before the skeleton of your bathroom is created. Rough carpentry provides support where necessary. This portion requires at least two days, and often more than four if you plan to move major fixtures.
Once rough plumbing and mechanical are done, it's time for the rough electrical to go in. Then drywall. Texturing. Painting.
It's a complex process that takes time and experience to complete without issues. The best way to complete rough-in plumbing for your new home is to hire a professional plumber. It isn't recommended to tackle rough-in plumbing work as a DIY project.
Rough-in plumbing for new construction costs $8,000 to $12,000 or $4.50 per square foot for an average 2,000-square-foot home with 2 or 3 bathrooms. Repiping an existing home the same size runs $3,100 to $5,500 on average, or $0.40 to $2.00 per linear foot.
Before the rough-in, the wall, floor and ceiling systems are built and left open, with no drywall installed. The plumbing rough-in begins when all the water supply and drain lines have been run through bored holes in the studs and other framing members.
Ever wondered which side the hot water tap should be on? Well wonder no more. The hot water tap is on the left and the cold tap on the right. This rule applies to mixer taps as well with the handle positioned to the left for hot and right for cold water.
The three most common parts you'll need to replace on a faucet are the washer/seal, the O-ring, or the cartridge.
Home plumbing encompasses three fundamental phases: underground, above-ground (rough-in), and finishing. Each phase is important and contributes significantly to the success of your plumbing project.
Defining Rough-In Plumbing
Rough-in plumbing includes the plumbing lines, vents, waste systems, and connection points for appliances. The finished rough-in includes your entire plumbing system but without the connection of appliances, toilets, and sinks.
Key takeaways. The average cost to plumb a bathroom is £3,250, to install a central heating system is £4,000 and to install completely new plumbing is between £13,000 - £17,000. The total plumbing installation cost will be affected by a range of factors, such as the current condition of your property and its size.
Anticipating Plumbing Costs per Hour: What to Expect
In 2025, homeowners in the U.S. can expect to pay an average of $90 per hour for plumbing services, though rates generally span from $45 to $200 based on service type and complexity.
Roto-Rooter is a national service available in every U.S. state, including Alaska and Hawaii. Flat-rate pricing might be slightly higher in states with a higher cost of living, such as California or New York, but most plumbers charge between $45 and $200 per hour.
Plumbing Requires Experience and Expertise
We could cut expenses (and therefore costs to you) by hiring less-knowledgeable team members, but that's simply not our model. Rather, we hire only the most skilled technicians—plumbers who will treat your home like their own and do their absolute best work, every time.
For most toilet installations, the rough-in is 12 inches. Sometimes in small baths or older homes it can be 10 to 14 inches.
The “rough-in” dimension refers to the distance from the wall framing (½-⅝″ behind the finished wall surface) to the center of the sewer pipe on the floor. Standard rough-in is 12 inches. Most modern toilets are also available in 10 inch and 14 inch rough-ins.