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Commercial Plumbing in Portsmouth, NH

Restaurants, offices, retail and multi-family: repairs, maintenance and build-outs. Local plumbers serving Portsmouth and Rockingham County — open 24/7 with upfront pricing.

(888) 480-9811
Commercial Plumbing near you in Portsmouth · Same-day service

For reliable commercial plumbing near you in Portsmouth, NH, call MJA Plumbing and Heating at (888) 480-9811. We serve every neighborhood in Portsmouth plus Newington, New Castle, Greenland with 24/7 emergency response and same-day appointments. Restaurants, offices, retail and multi-family: repairs, maintenance and build-outs. Our plumbers explain the problem, give you options and get it fixed right.

Commercial Plumbing for Portsmouth homes and businesses

Restaurants, offices, retail stores, medical offices and apartment buildings cannot afford plumbing downtime. MJA Plumbing and Heating provides commercial plumbing repair, maintenance contracts, grease trap service, backflow testing and build-out plumbing across New Hampshire.

What's included

  • Commercial repairs and emergencies in Portsmouth
  • Restaurant and grease trap plumbing in Portsmouth
  • Multi-family and property management service in Portsmouth
  • Backflow testing and compliance in Portsmouth
  • Tenant build-outs and remodels in Portsmouth
  • Preventive maintenance agreements in Portsmouth

Why Portsmouth chooses MJA for commercial plumbing

We answer 24/7

A real person picks up day or night, and an emergency plumber is dispatched immediately.

Upfront pricing

You get the price in writing before we start. No surprises on the invoice.

Fully stocked trucks

Most repairs finish on the first visit because the parts are already on the truck.

Local New Hampshire team

Our plumbers live and work in the communities we serve and know the local water and winters.

Clean work

Shoe covers, drop cloths and a tidy job site every time.

Guaranteed workmanship

If a repair we made fails, we come back and make it right.

Plumber's tip for Portsmouth residents

Ask about a maintenance agreement with priority dispatch for your business.

Commercial Plumbing near Portsmouth

We provide commercial plumbing throughout Portsmouth and the neighboring towns of Newington, New Castle, Greenland, Rye, North Hampton, Stratham.

Related plumbing services in Portsmouth

Reviews

★★★★★

“We manage a small restaurant and MJA handles all our plumbing. Fast, professional, and they answer the phone.”

Angela D.
★★★★★

“Sump pump died during a storm. They replaced it and added battery backup the same afternoon.”

Pete S.
★★★★★

“Booked a plumbing inspection before we bought our house. Report was thorough and saved us a big negotiation.”

Jen K.

FAQ

How soon can you do commercial plumbing in Portsmouth?

We offer same-day commercial plumbing in Portsmouth and 24/7 emergency response. Call (888) 480-9811 and we will give you an arrival window right away.

What does commercial plumbing cost in Portsmouth, NH?

You get an upfront, written price before any work starts. There are no overtime charges for nights, weekends or holidays.

Do you serve areas near Portsmouth?

Yes — we cover all of Rockingham County including Newington, New Castle, Greenland, Rye.

Need a plumber now?

Emergency plumbers on call 24 hours a day across New Hampshire. Upfront pricing, same-day service.

(888) 480-9811
📞 Call (888) 480-9811 — 24/7