How Much Does a Bathroom Remodel Cost in Southern NH? (2026 Real Numbers)

By Ashley Dumont, Next Step Property Services

The short version: Most bathroom remodels in Southern New Hampshire run from about $12,000 for a refresh to $50,000 or more for a full gut. A typical full remodel down to the studs lands somewhere around $20,000 to $40,000. What moves the number most is whether you move the plumbing, how much tile you want and where, the grade of the fixtures, and whatever water damage is hiding behind the wall. Every project we take on gets a free on-site walkthrough and a fixed written estimate first, so the price we quote is the price you pay.

If you have searched "bathroom remodel cost" lately, you already know the internet loves to give you a number with no context. A bathroom is not one project. It is a dozen smaller ones stacked together, and the price swings hard depending on which ones your bathroom actually needs. Here is the honest breakdown for homeowners in Derry, Londonderry, Nashua, Manchester, and the rest of Southern NH, from the crew that does the bathroom remodeling here.

A finished, modern bathroom: the end goal once the work is done.

What does a bathroom remodel actually cost in Southern NH?

Most bathrooms fall into one of three buckets. Where yours lands depends mostly on how far down to the studs you go.

Cosmetic refresh: about $12,000 to $18,000. Same layout, new everything you see and touch. New vanity, toilet, fixtures, lighting, fresh tile, and paint. This is the right call when the bones are solid and you just want the room to look and feel new. A small powder room or a simple fixture-and-paint update can come in under $12,000.

Full remodel: about $20,000 to $40,000. Down to the studs and back up. New tile shower or tub, proper waterproofing, new flooring, vanity, and fixtures, with minor plumbing moves. This is the most common project we do, and for good reason. It fixes what you can see and what you cannot.

Full gut or high-end: $50,000 and up. Rerouted plumbing, a new layout, custom tile work, premium fixtures, or knocking into a closet to build a real primary bath. A luxury primary suite with a freestanding tub, a big walk-in shower, and high-end finishes can reach $75,000 to over $100,000. That is the top of the market, not the middle, so do not let those numbers scare you off a normal remodel.

These are typical ranges, not a quote. Your bathroom gets a fixed written number after we walk it. More on why that matters below.

Why do two bathrooms the same size cost different amounts?

People are always surprised that their neighbor's bathroom cost half what theirs did, or twice as much, for the same square footage. Size is only part of the story. Here is what actually moves the price.

  • Moving the plumbing. Keeping the toilet, sink, and shower where they are is cheap. Moving them means opening floors and walls and rerouting drains and supply lines. That is real labor and it adds up fast.
  • Tile. A simple subway tile in a tub surround is one price. Floor-to-ceiling tile, a custom shower with a bench and niches, mosaic, or large-format slabs is another. Tile is where a lot of the budget hides.
  • Fixtures and materials. A builder-grade vanity and faucet versus a custom vanity with a quartz top and a high-end fixture set can be a multi-thousand-dollar swing on its own.
  • Hidden damage. This is the big one, and it is the part nobody can see when they hand you a quick number over the phone.
  • How much we can reuse. If the layout works and the rough plumbing is sound, we save you money by keeping it. If it is shot, it has to go.

What is the part of the cost you cannot see?

Here is the thing most cost guides skip. The cracked tile and dated vanity are almost never the real problem. Behind the wall and under the floor is where bathrooms actually fail, and after twenty years of demolition and building work, we usually know what is back there before the first tile comes off.

Water damage we found behind the wall during a recent bathroom demo.

In Southern NH homes, it is usually one of a few things:

  • A slow leak that rotted the subfloor. A toilet flange or shower pan that has been weeping for years leaves a soft, spongy floor and often mold in the framing below. You do not feel it until the tile starts to move.
  • Waterproofing that was never done right. A lot of older showers were tiled straight over drywall with no membrane and no slope to the pan. Water gets behind the tile, sits there, and the whole thing lets go in a couple of years.
  • Tired plumbing. We open walls in Derry and Londonderry homes and find old galvanized or cast-iron drains and corroded shutoffs. Swapping them while the wall is already open costs very little. Doing it after the tile is back up costs a lot.
  • Bad venting. No real exhaust fan, or a fan that dumps into the attic. That is how you get mold and peeling paint, and NH humidity and long winters make it worse.

We look for all of this during the walkthrough and flag what we can in the estimate. That is the difference between a bathroom that holds up for twenty years and one that leaks in year two.

How long does a bathroom remodel take in NH?

Most full bathroom remodels run two to four weeks, from demo to the final walkthrough. Tile complexity, plumbing moves, and material lead times are what stretch it. A simple refresh can be quicker. A full gut with custom work and special-order materials can run longer. We build a real timeline into every estimate and check in at the end of each day so you always know where things stand.

Do you need a permit to remodel a bathroom in NH?

Usually yes, once you move plumbing or change electrical, and most Southern NH towns require it for that kind of work. A like-for-like cosmetic refresh often does not. We handle the permitting where your town requires it, so the work is inspected and on the record. That protects you down the road, especially when you go to sell.

How do we quote a bathroom, and why does it matter?

This is the part homeowners care about most, even if they do not say it out loud. The fear is always the same. You will get a low number to win the job, then the bill climbs once the walls are open.

We quote differently. We come out, walk the space, ask the questions that matter, and look for the hidden stuff before we put a number on paper. Then you get a fixed written estimate, not a ballpark. No big deposit to get on the calendar.

If we open a wall and find rot or bad plumbing we could not see from the outside, we stop. We show you exactly what we found and walk through the options with you before anything changes. Nothing gets buried in the final bill, and nothing gets done without your say-so. The price we quote is the price you pay, and the only time that moves is when you can see the reason with your own eyes.

How do you budget for a bathroom remodel?

A few things that keep your project on track:

  • Get clear on the goal first. A "make it work better" bathroom and a "make it the nicest room in the house" bathroom are different budgets. Knowing which one you want sets the whole project.
  • Spend where it shows. Tile, the vanity, and the shower are what you see and use every day. That is usually the smartest place to put your money.
  • Hold back a contingency. Set aside 10 to 20 percent for the unexpected, especially in an older home. If we do not need it, you keep it.
  • Get more than one estimate. Compare what is actually in each quote, not just the bottom number. A cheap quote that leaves out waterproofing or permits is not actually cheap.

Some homeowners use a home equity line or a personal loan to fund a larger remodel. That is a personal call and worth talking through with your bank, since we are not financial advisors. What we can do is give you a clear, honest number to plan around.

How do you choose a bathroom remodeler in Southern NH?

A few things to look for, beyond the price:

  • Licensed and insured in NH, with paperwork they will hand you on request.
  • One crew, not a rotating cast of subs. You want the same experienced hands on your job from demo to finish, not a sales rep who hands you off to people you have never met.
  • A real written estimate, not a number scribbled on the back of a card.
  • Reviews and references from local jobs, and work they will actually show you.

That is how we built Next Step Property Services. We are based in Derry, so Derry and Londonderry are right in our backyard, and we cover Nashua, Manchester, and the surrounding towns. You work with the tradesman doing the job, start to finish.

Ready to price out your bathroom?

The fastest way to a real number is to let us see the room. Take a look at our bathroom remodeling services, then request a free estimate. We will walk the space, look behind the obvious stuff, and put a fixed written number in front of you, with no pressure and no big deposit to get started.

If a kitchen is next on the list, we do those too. Here is our kitchen remodeling page.