Cutaway illustration of a bathroom under renovation with open stud walls showing a shower valve, PEX supply lines, a PVC drain and vent, and a tub drain in the floor

2F · Upstairs · Coon Rapids & north metro

Remodel plumbing for bathrooms & kitchens.

AP Plumbing handles the plumbing side of bathroom and kitchen remodels in Coon Rapids and the north metro: moving drains and supply lines, setting shower valves, tubs, sinks and fixtures, and getting the rough-in through inspection. We pull the plumbing permit, as Coon Rapids requires of the contractor doing the work.

Call (612) 245-7341 What to know first

5.0 · 513 Google reviews

What you’re looking atA bathroom remodel at rough-in

Shower mixing valve
Minnesota requires a pressure-balance or thermostatic valve on every shower and tub-shower for scald and thermal-shock protection. The water heater thermostat doesn’t count.
Supply lines
Hot and cold lines are run, strapped and protected before the walls close, then inspected with everything else.
Vent
Every drain needs a vent to let air in and sewer gas out. Moving a fixture usually means moving its vent too.
Drain tie-in
New drains join the stack with the right slope and fittings. Coon Rapids’ rough-in air test holds 5 psi for 15 minutes before anything is covered.
Tub drain & trap
Set in the floor between the joists for the tub’s waste and overflow, with its trap below.
Inspection before cover
Coon Rapids requires new plumbing to be inspected, tested and approved before it’s covered, so the walls stay open until it passes.

01The short answer

The plumbing is the part you can’t redo later.

In one paragraph

In a remodel, the plumbing goes in before the walls and floor close: supply lines, drains, vents and the shower valve. It has to pass the city’s rough-in inspection, so it’s permitted, tested and inspected before anything is covered. That’s our part of the job.

Tile and cabinets get the attention, but a remodel depends on what’s behind them. A shower valve set at the wrong depth, a drain without enough slope or a missing vent is expensive to fix once the walls are finished.

What we handle

Moving or adding drains, vents and supply lines
Shower valves, tub drains and tub/shower inserts
Sinks, faucets and toilets at finish
Kitchen sink, disposal and dishwasher connections
The plumbing permit, rough-in test and inspection

Permits in Coon Rapids

Coon Rapids requires a plumbing permit for altered plumbing and for replacing fixtures like tub/showers and sinks. When a contractor does the work, the city says the contractor must pull the permit; a homeowner who signs for it becomes liable for fixing the contractor’s work.

The rest of the project

Framing, drywall, tile and cabinets are usually handled by your general contractor or the trades you hire. We coordinate with them on timing so the inspection happens before the walls close.

02Planning

Planning a remodel? Know this first.

The plumbing decisions that shape a bathroom or kitchen project, and when to bring a plumber in.

Remodel plumbing: plans → what code and cities require
If you’re planning to…	What to know	Bring us in
Move a toilet, sink or shower	Its drain and vent move too. Joist direction and where the stack runs decide what’s practical.	At design
Build a bigger shower	Showers need at least 1,024 square inches of floor and must fit a 30-inch circle; Coon Rapids also wants a 22-inch door opening.	At design
Swap a tub for a walk-in shower	A new drain, a new valve, and in Coon Rapids a shower pan that holds water for a 24-hour flood test.	At design
Add a basement bathroom	Gravity drainage comes first. Minnesota allows macerating (upflush) toilets only where gravity drainage isn’t possible.	At design
Open walls in a pre-1978 home	Lead-safe rules apply: contractors must be certified and give you EPA’s Renovate Right pamphlet first.	Before demo
Lay out a new kitchen	Coon Rapids requires a 2-inch cleanout on kitchen sink drains, and the dishwasher drain needs proper backflow protection.	At design
Close up the walls	New plumbing has to be tested and inspected before anything is covered.	Before drywall

03Minnesota field notes

The rules your remodel has to pass.

Rules and numbers that apply to homes here, each with its source.

Shower valves
Scald-safe
Every shower and tub-shower needs a pressure-balance, thermostatic or combination valve that protects against scalding and thermal shock.
Source: 2020 Minnesota Plumbing Code §408.3
Tub fillers
120°F
Hot water from bathtub and whirlpool fillers must be limited to 120°F.
Source: 2020 Minnesota Plumbing Code §409.4
Shower size
1,024 sq in
Shower compartments need at least 1,024 square inches of finished floor area and must fit a 30-inch circle.
Source: 2020 Minnesota Plumbing Code §408.6
Rough-in test
5 psi · 15 min
Coon Rapids requires new plumbing to be inspected and approved before it’s covered; the rough-in air test holds 5 psi for 15 minutes.
Source: Coon Rapids, Residential Plumbing Requirements
Who pulls it
Contractor
In Coon Rapids, the contractor doing the work must pull the permit. Signing for it makes the homeowner liable for the contractor’s work.
Source: City of Coon Rapids, Building Inspections FAQ
Showerheads
2.0 gpm
WaterSense showerheads use no more than 2.0 gpm versus 2.5 standard, saving an average family about 2,700 gallons a year.
Source: EPA WaterSense, Showerheads

Checked October 2026. Codes and city rules change; your permit office has the final word.

04Real work

Remodels where the plumbing passed first.

AP Plumbing job photo: bathroom remodel plumbing, finished — **Job photo**Bathroom remodel plumbing, finished

They explained the process on the day they gave me the quote. They came on the schedule days and complete the work as planned. They pulled the permit and contacted the inspector.

Eva O.Google review · Sep 2024

“We had our shower/tub insert installed by AP Plumbing. Very happy with the outcome and would recommend this company to others. Denis and the other gentleman who worked on our project were professional, hard working, and did a great job.”
Tim A. · Google review · May 2026
“Denis and his team quickly diagnosed a leak in one of our showers that a larger corporation wanted to charge a large fee for. We ended up remodeling our bathroom and AP Plumbing provided great pricing - half the cost of large corporations.”
Brett L. · Google review · Feb 2026
“Gas line relocation for remodeled laundry room. Denis and crew were great people to work with and fairly priced for a small job. They cleaned up after themselves and made sure I was happy with the location/placement of the gas line. Highly recommended and would have them out for further plumbing needs.”
Google reviewer · Google review · Jul 2026

Bathroom & kitchen remodeling questions, answered.

Straight answers, with the source when a rule or number is involved. Still not sure? Call and describe it.

Call (612) 245-7341

Do I need a permit for bathroom remodel plumbing in Coon Rapids?

Yes. Coon Rapids requires a plumbing permit for altered plumbing systems and for replacing fixtures such as tub/showers, sinks, dishwashers and disposals. The work is inspected and tested before it’s covered.

Source: City of Coon Rapids, Residential Plumbing Requirements

Can I pull the permit myself and have a plumber do the work?

Coon Rapids says no: when you hire a contractor, the contractor must pull the permit. If a homeowner signs for the permit, the homeowner becomes liable for fixing the contractor’s work. Let the plumber doing the work pull the plumbing permit.

Source: City of Coon Rapids, Building Inspections FAQ

What kind of shower valve does Minnesota require?

Every shower and tub-shower needs a pressure-balance, thermostatic or combination mixing valve that protects against scalding and thermal shock at the installed showerhead’s flow rate. The water heater’s thermostat doesn’t satisfy the rule; the protection has to be at the valve.

Source: 2020 Minnesota Plumbing Code §408.3; Minnesota DLI

Can I add a bathroom in my basement?

Usually, yes. A basement bathroom drains by gravity when the sewer line is deep enough. Minnesota allows macerating (upflush) toilet systems only in one- or two-family homes where gravity drainage isn’t possible, serving no more than one bathroom group.

Source: Minnesota Rules 4714.0710

How big does a new shower have to be?

Minnesota code requires at least 1,024 square inches of finished floor area, enough to fit a 30-inch circle. Coon Rapids also requires a door opening of at least 22 inches, and a new shower pan must pass a 24-hour flood test.

Source: 2020 Minnesota Plumbing Code §408.6; City of Coon Rapids

06Related

Often the same visit. Often the same wall.

Same service, every stop on the line

Each city page has that city’s own water report numbers, permit rules and sewer-line responsibilities.

07Call us

Call the people who know your house inside out.

(612) 245‑7341

Mon – Sat · 8 AM – 10 PM

Hours: Monday – Saturday, 8 AM – 10 PM · Sunday closed
Address: 12433 Uplander St NW, Coon Rapids, MN 55448
Serving: Coon Rapids and 14 north‑metro cities · see the map