New Construction in Lewiston, ME
Complete rough-in and trim-out for new homes and additions across Central Maine — on schedule and to code.
New Construction for Lewiston Homeowners
Lewiston homeowners call RJC Plumbing for new construction because we are close by, based in Augusta, and out on Central Maine roads every day — the housing stock and the local permit process are not a mystery to us.
RJC Plumbing provides complete plumbing system installations for new construction projects across Central Maine, coordinating with builders to ensure every pipe, fixture, and connection is installed right the first time.
What does our new construction plumbing include?
We install the full plumbing system for new homes, additions and garage apartments: underground drain and water lines, above-ground drain, waste and vent piping, supply lines, the water heater, and fixture trim-out.
We also plumb for hydronic heat — boilers and baseboard — when the job calls for it, and set well pressure tanks and water treatment on homes outside municipal water. One trade, one point of contact for the builder.
Our customers include general contractors building in Augusta, Manchester, Winthrop and the surrounding towns, and owner-builders who need a plumber that returns calls and shows up on the day promised.
How does the new construction process work?
Underground: after the foundation is in and before the slab, we set the below-grade drain lines, cleanouts and water service entry. Photos are taken before backfill.
Rough-in: once the frame is up, we run supply and drain-waste-vent lines, stub out every fixture location, set tub and shower units, and pressure-test for inspection.
Trim-out: after drywall, paint and cabinets, we return to set toilets, faucets, sinks, the water heater and any remaining fixtures, then test every connection.
Why do venting and pipe sizing matter?
Undersized drains and missing vents are behind most "the new house already has plumbing problems" calls. We size lines by fixture units and lay out venting so every trap holds its seal.
Maine winters also decide where lines can run. We keep supply piping out of exterior walls and unheated spaces, and insulate where a line has no other route.
Working with builders and homeowners
We review the plans early, flag conflicts with framing or HVAC before they are built, and keep to the schedule so the next trade is not waiting on us.
For owner-builders we walk you through fixture selection and rough-in dimensions so what you order fits what we installed.
Why Lewiston Chooses RJC Plumbing
- Family-owned since 2022, and Lewiston has been part of our territory the whole time
- You approve the number before any work starts, and it does not move afterward
- Most urgent calls get worked into the schedule the same day
- Licensed, insured, and background-checked — call and you will reach a real person, not a call center
Lewiston's Homes and Plumbing
Lewiston and Auburn share their drinking water: the Auburn Water District draws from Lake Auburn and supplies both cities, and Lewiston’s own Electrical Services Division jointly operates a UV disinfection facility with the district. Wastewater goes to the Lewiston Auburn Clean Water Authority, the renamed successor to the long-running joint treatment authority known locally as LAWPC.
Because the two cities’ utilities are this intertwined, a plumbing problem on your side of the meter — a worn valve, a failing fixture, a cracked lateral — is squarely ours to handle regardless of which city’s infrastructure feeds the street. Our well pump repair service covers the smaller number of Lewiston properties still on a private well.
Family-Owned, Not a Franchise
Lewiston homeowners deal directly with RJC Plumbing's own crew — a family business, not a franchise with a call center. Being small means fewer layers between you and the person actually doing the work. We would rather earn the next call than upsell this one.
Lewiston at a Glance
What the housing stock, water and sewer setup mean for a plumbing job here.
37,121
Population (Census / ACS estimate)
Median year built: 1957
A mix of galvanized, copper and early PEX, depending on when a section was last replaced.
Water
Auburn Water District (jointly serves Lewiston and Auburn)
Sewer
Lewiston Auburn Clean Water Authority (LACWA, formerly known as LAWPC)
Code Office
Planning & Code Enforcement, City of Lewiston
Main Heating Fuels (relevant to water heater choice)
- Heating oil 53%
- Natural gas 23%
- Electricity 10%
- Other 14%
Sources: en.wikipedia.org · api.censusreporter.org · lewistonmaine.gov · lewistonmaine.gov · lewistonmaine.gov · summitnaturalgasmaine.com
Codes & Permits for New Construction in Lewiston
In Lewiston, plumbing permits come from the Local Plumbing Inspector at the Planning & Code Enforcement, City of Lewiston (27 Pine Street, Lewiston, ME 04240, 207-513-3000). With 37,121 residents, Lewiston is required to enforce the Maine Uniform Building and Energy Code (MUBEC). The city's Electrical Services Division jointly operates a UV/chemical disinfection facility with the Auburn Water District for the shared Lewiston/Auburn water supply, reflecting how closely the two cities' utilities are intertwined.
- Buried water service lines and other freeze-sensitive plumbing in new construction are expected to go in below the local frost line under the International Residential Code provisions Maine adopted via MUBEC (2021 IRC, effective April 7, 2025); the exact burial depth follows local frost-depth practice rather than one statewide number. www11.maine.gov
- New-construction plumbing in Maine towns is inspected in at least two stages under the local code office's process: a rough-in inspection before walls are closed in during framing, and a final/occupancy inspection once fixtures are connected. townofnaples.org
- The Maine Plumbers' Examining Board (within the Office of Professional and Occupational Regulation, Department of Professional and Financial Regulation) licenses plumbers statewide and maintains the plumbing rules and laws (Title 32, Chapter 49); day-to-day permit issuance and inspection for a given town is carried out locally by a Local Plumbing Inspector (LPI), who is often the same person as the municipality's Code Enforcement Officer. maine.gov
How RJC Plumbing Handles New Construction in Lewiston
- We rough in supply and drain lines to pass Lewiston's framing-stage inspection, then come back for the final once fixtures are set — the two-stage process most Maine code offices run.
- Any water line we bury on a new construction job goes below frost depth as the state's 2021 residential code requires, following what Lewiston's own code office treats as local frost-depth practice.
- With 37,121 residents, Lewiston is over the line at which Maine requires a town to enforce the statewide building and energy code, so new-construction plumbing here is inspected against that code alongside the plumbing rules.
- We coordinate rough-in and final inspections directly with Planning & Code Enforcement, City of Lewiston so a new construction job never sits waiting on a missed call.
An industrial yard on Oxford Street near Simard-Payne Memorial Park, with Lewiston's historic mill buildings visible beyond.
Street View © Google
“very thorough and professional. took the time to explain possibility of results, I would use their service again and recommend to anyone”
emily h
September 2026
“Great communication and service. Josh provided an estimated arrival time on the day and was on time. The service was quick and professional. I also really liked that there was someone on the office. Madison provided excellent updates and communication.”
Daniel Philbrick
July 2026
“Great service and communication! I've been very pleased with their work!”
Marina Savage
July 2026
“Riley and his crew are awesome guys! They handled all the plumbing in our new bathroom. They were efficient and finished the project in the timeframe they had quoted. Riley and his guys made us feel so comfortable that we left him at our home alone while we ran errands.”
Michael Giroux
June 2026
“RJC came to do all the plumbing for our new bathroom. They always came on time and their professionalism was particularly noteworthy. They also kept their workspace clean and were respectful of our home. I would highly recommend them.”
Mudiwa Mupotsa-Giroux
June 2026
“Riley called to let us know when he would arrive. He was very knowledgeable, polite, and answered all of our questions. The work completed was very professional and thorough. We hope to use them again.”
Paul Perzanoski
June 2026
New Construction Questions from Lewiston Homeowners
Do you work with general contractors or directly with homeowners?
Both. Most of our new-construction work comes through builders, but we also work directly with owner-builders and homeowners managing an addition.
Can you quote from a set of plans?
Yes. Send the plans and fixture schedule and we will return a written quote covering underground, rough-in and trim-out, with allowances noted where fixtures are not yet selected.
Do you handle the plumbing inspections?
We schedule and are present for the rough-in and final plumbing inspections required by the town, and we correct anything the inspector flags.
Do you install boilers and radiant or baseboard heat?
Yes. We install boilers, hydronic baseboard and the piping for radiant systems as part of a new build or addition.
What about homes on a well?
We set the pressure tank, pressure switch and any water treatment equipment and tie the well line into the house. Well drilling itself is done by a well driller.
How far in advance should we book?
Call once you have a foundation date. Underground and rough-in have to fit between other trades, and a few weeks of notice keeps your build on schedule.
More Services in Lewiston
RJC Plumbing handles every plumbing need for Lewiston homeowners, not just new construction.
Need New Construction in Lewiston?
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Get a Quote for New Construction in Lewiston
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