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Exposed blue plumbing supply and drain lines under a floor deck in a commercial building Tankless water heater with copper and venting lines in a mechanical room Commercial backflow preventer and water service piping in a Montana facility

Plumbing and septic, home and business

Plumbing and Septic Services in Helena, MT

A+ 406 Waterworks brings 35 years of plumbing experience to leaks, drains, water heaters, sewer lines and septic systems, with free quotes and 24/7 emergency help.

  • Insured
  • Open 24 hours
  • Residential and commercial
  • 35years of plumbing experience
  • 24/7emergency plumbing and septic help
  • 5.0from 10 Google reviews
  • Freequotes before service begins
A+ 406 Waterworks branded service van parked on a gravel lot with Montana hills behind

About A+ 406 Waterworks

35 years of plumbing experience behind every call

Bryant Espinoza founded A+ 406 Waterworks in 2025 and brings 35 years of plumbing experience to homes and businesses in Helena and the surrounding Montana towns. From leaking pipes and clogged drains to sewer lines and septic systems, he treats every job as if it were his own property.

  • Free quotes before service begins
  • Emergency help when plumbing trouble strikes
  • Residential and commercial plumbing support
  • Septic system services for homes and businesses

How it works

From first call to finished repair

No guessing and no surprises. Here is what happens when you call A+ 406 Waterworks.

  1. Call or request a quote

    Call or send your details. We schedule the visit and give you a free quote before service begins.

  2. We find the cause

    We look at the problem, explain what we see, and lay out the recommended work, expected costs and your options.

  3. We do the work

    Leak repairs, drain clearing, water heaters, sewer lines or septic work, done with careful, tidy craftsmanship.

  4. You stay informed

    Clear communication and respectful support from the first call to the finish, for homes and businesses alike.

Customer reviews

What Helena-area customers say

5.0from 10 Google reviewsSee our Google profile

Could not be more grateful for the response and care they provided. Questions were answered, options were given, and there was a lot of patience to go around. Hope to never have an emergency on a Sunday evening again, but if I do, I know who I'm calling.

Jamie Lyn · Google · Oct 2026

Amazing and timely service. Went the extra mile on two different occasions. Fair pricing and personalized service. I give them an AAArating.

Leith Wimmer · Google · Oct 2026

A+406 waterworks service was incredible! Got an immediate response and was onsite working in less than an hour, they were extremely easy to work with and very reasonably priced, HIGHLY recommended!!

Dane Larkin · Customer review · Apr 2026

Bryant saved my bacon. Hanging drywall I put a drywall screw in our water main into the house about 1" above concrete. Bryant was at my house within 45 minutes on a Saturday and working on it. He had to cut out a little concrete to make the fix and was done within a couple hours. Highly recommend. The fix was well done and tidy.

Brian Ahlers · Customer review · Apr 2026

Bryant answered my request to fix a leaking pipe in my garage. The pipe had separated. He came the same day to fix this problem. ... Bryant is respectful, knowledgeable, and goes way out of his way to help his custermers. I will hire him again as plumbing issues arise. Thanks, Bryant.

Kathy Dwyer · Google · Apr 2026

Recent work

Plumbing and septic jobs we have finished

Sewer trenches, drain lines, water heaters and commercial restrooms, straight from our own job photos.

Sewer line trench with a capped PVC pipe running to a house in winter Copper water supply piping cut into a wall during a repair Water treatment tanks and a tankless heater on a basement wall Deep utility trench with water and conduit lines laid for new construction A+ 406 Waterworks plumber working under a bathroom vanity New PVC drain piping and trap installed inside a cut-open wall Plumber setting concrete around a repaired line beside a road Excavator and trench exposing an underground line next to a house in snow
See the full gallery

Service area

Serving Helena and nearby Montana towns

We are based in Helena, MT 59602 and travel to customers across the area. Tap a town to see how we help there.

Not sure we cover your address? Call us and we will tell you.

Plumbing and septic FAQ

Questions we hear from Helena customers

Straight answers to common plumbing and septic problems. Still stuck? Ask for a free quote.

Get a Free Quote
What should I do if sewage comes up through a floor drain?

Stop using water throughout the property, since every running shower, sink or washing machine sends more wastewater toward the affected drain. Keep children and pets away, and avoid walking through the water because sewage can carry harmful germs. Note which fixtures were running before the backup started. That detail helps the plumber tell whether the problem sits in the main sewer line rather than the drain itself.

Can I wait until morning if a plumbing leak seems small?

Sometimes, but it depends on where the water goes. A slow drip into a sink is different from water reaching a wall, ceiling, cabinet or electrical area. If a fixture valve stops the flow, you can usually wait. If the source cannot be controlled or keeps soaking building materials, call right away. A+ 406 Waterworks offers emergency plumbing help 24 hours a day.

Why did my water bill jump when I cannot see a leak?

Water can escape where you never see it, such as a toilet, a supply line or a buried pipe. If your household use has not changed, a higher bill is worth checking. Compare your meter reading before and after a few hours with no water running, and note any damp spots or low pressure. Leak detection confirms where the water is going before any repair is planned.

What should I do if my septic alarm starts sounding?

Do not ignore it. A septic alarm can mean the liquid level is higher than expected or another part needs attention. Cut back on laundry, long showers and other heavy water use until the cause is checked, and never open the tank or touch its electrical parts. Note when the alarm started and any recent heavy water use, power loss or weather change, then arrange a septic inspection.

Why does a sewer problem keep returning after drain cleaning?

Drain cleaning clears a blockage, but it cannot fix a cracked, collapsed or root-damaged pipe. If a backup returns soon after cleaning, the sewer line itself may be the problem. Keep your service records and note which fixtures were affected before and after. That history helps show whether a repeating issue points to sewer line repair rather than another simple clog.

What should I do if a pipe bursts while I am away from home?

Shut off the main water supply as soon as you can reach it safely, and stay clear of standing water near outlets, appliances and the electrical panel. Take photos before cleanup if you need records. Then tell the plumber where the break is and whether water is still flowing. Stopping the water comes before any work to restore the damaged room.

Plumbing or septic trouble in Helena?

Tell us what is going on and get a free quote from a plumber with 35 years of experience. Emergencies get 24/7 help.