The honest answer is that a full bathroom remodel in Bellingham runs $18,000 to $45,000. A small guest bath where you keep the layout sits near the bottom. A primary bath where you move the plumbing, build a tiled shower, and add a double vanity lands at the top. The room is small, but it is the most plumbing-heavy and moisture-sensitive space in the house, so the number is bigger than people expect.
We are a local kitchen and bath crew, and we would rather hand you a real range than a teaser. Below is what drives the cost, what waterproofing and moved plumbing add, and the surprises older Whatcom County homes tend to hide.
Guest bath vs primary bath.
Most Bellingham bathroom projects land in one of two tiers once we write a real scope:
- $18,000 to $28,000 is a guest or hall bath: keep the footprint, new vanity and fixtures, a new tub or tiled shower, tile floor, fan, and lighting. Plumbing stays where it is.
- $28,000 to $45,000 is a primary or owner's bath: a smarter layout, plumbing relocated, a larger tiled shower with a glass panel, a double vanity, heated floor, and better finishes.
Square footage matters less here than what you put in the room and how much you move. A tiny primary bath with a big tiled shower can cost more than a roomy guest bath you barely change.
What moves the number the most.
Waterproofing the wet areas
This is the line that separates a bathroom that lasts from one that leaks in five years, and it is invisible once the tile is up. A proper tiled shower gets a waterproofing membrane behind the tile and a waterproofed shower pan under it, so water never reaches the framing or subfloor. Doing this right adds a few thousand dollars over a builder-grade job, and in our wet climate it is the part we will not skip. We cover why this matters so much here in the Pacific Northwest in a separate guide.
Moving the plumbing
Keeping the toilet, sink, and shower where they are keeps cost down. The moment you move the shower to the other wall, float the vanity, or relocate the toilet, you are paying a plumber to run new supply and drain lines, and often to open the floor. A relocated drain in particular means cutting into the subfloor and sometimes the joist bay below. It is frequently worth it for the layout you want, but it is real money, so we price it line by line.
Tile choices
Tile is priced by material and by how much labor it takes to set. A simple large-format wall tile in a basic layout is the budget end. Small mosaics, a niche, a tiled bench, a herringbone floor, or a full-height shower surround all add labor hours. Natural stone costs more than ceramic or porcelain and needs sealing. The tile you fall in love with on Instagram is often the one that takes the most time to install, so we are upfront about that tradeoff.
Vanity and fixtures
A stock single vanity with a cultured-marble top is the budget choice. A custom or double vanity with a quartz top, a wall-mounted faucet, a frameless glass shower panel, and a higher-end toilet all push the number up. Fixtures have a huge price spread, and you can spend smart here without the room looking cheap. We help you put the money where it shows.
The part nobody warns you about: old Bellingham homes.
A big share of Bellingham housing was built before 1960, and bathrooms in those homes hide costs behind and beneath the tile that a flat online estimate never catches. When we open a bathroom in Columbia, Roosevelt, or the Lettered Streets, we routinely find:
- A rotted, spongy subfloor under a toilet whose flange has been leaking quietly for years
- An exhaust fan that vents straight into the attic instead of outside, which dumps moisture into the roof and grows mold
- Galvanized supply lines, rusted and narrowed, that need swapping to PEX or copper
- No fan at all, just a window, which does not move enough moisture for our climate
- An old tile shower set in mortar with no real waterproofing behind it, already letting water into the wall
None of this is a reason to avoid remodeling an older home. It is a reason to hire a contractor who plans for it in the written scope. We open up where we can during the estimate, budget an allowance for the likely finds, and route every fan to the outside, never into the attic.
So what should you budget?
If you own an older Bellingham home and want a full guest-bath remodel that keeps the layout, plan for $20,000 to $28,000 and treat a little extra as a cushion for what we find under the floor. For a primary bath with a relocated shower, a glass panel, and a double vanity, plan for $32,000 to $45,000. If your home is newer (think Barkley or Cordata) and you are updating builder-grade finishes without moving plumbing, you can land at the low end.
The only way to get a number you can trust is an in-home visit. We measure, look at how the room is used, check what is behind the wall and under the floor where we can, and hand you a fixed written scope with the waterproofing spelled out. No teaser pricing, no surprise change orders.
Frequently asked questions.
How much does a bathroom remodel cost in Bellingham in 2026?
A full bathroom remodel in Bellingham runs $18,000 to $45,000 in 2026. A guest or hall bath that keeps the existing layout lands near the bottom, while a primary bath with relocated plumbing, a large tiled shower, and a double vanity lands at the top. Waterproofing, how far the plumbing moves, and tile choice are the biggest drivers.
What does proper waterproofing add to a bathroom remodel?
A correctly waterproofed tiled shower, with a membrane behind the tile and a waterproofed pan under it, typically adds a few thousand dollars over a builder-grade job. In Bellingham's wet climate it is the part that keeps water out of your framing and subfloor, so it is the line we will not cut. It is invisible once the tile is set, but it is what makes the bathroom last.
Why are bathroom remodels more expensive in older Bellingham homes?
Older Bellingham bathrooms often hide a rotted subfloor under a leaking toilet flange, a fan vented into the attic instead of outside, and rusted galvanized plumbing. Once the room is open, those have to be repaired and brought up to code, which adds cost. A good contractor budgets an allowance for these surprises up front so you are not blindsided by a change order.
Do you pull permits for a bathroom remodel?
Yes. When the work moves plumbing, adds electrical circuits, or changes framing, we pull the City of Bellingham permit and schedule the inspections so the job is documented and to code. Lynden and Ferndale homes permit through their own cities, which we handle too.