How much does a bathroom remodel cost in Lake Oswego, OR?

Most full bathroom remodels in Lake Oswego cost $30,000–$65,000 in 2026. Powder rooms and simple refreshes start around $15,000, and primary suites with layout changes typically run $65,000–$120,000 or more. Oregon adds no sales tax, and we give a fixed written price after a site visit.

How long will I be without my bathroom?

A hall bath is usually out of service for 4–6 weeks and a primary suite for 6–10 weeks. We order fixtures, tile and glass before demolition so the room isn’t sitting idle waiting for materials.

Do I need a permit for a bathroom remodel in Lake Oswego?

You need one if you move or add plumbing, replace valves in the wall, add circuits or change walls. The City of Lake Oswego issues the building, plumbing and electrical permits. Swapping a vanity or toilet in place generally doesn’t require one. We handle the permits and inspections.

Does a bathroom remodel add value to a Lake Oswego home?

Mid-range bathroom remodels typically recover a large share of their cost at resale, and an updated primary bath matters to buyers in this price range. The best return comes from fixing function — a walk-in shower, storage, lighting and ventilation — rather than the most expensive finishes.

Can you turn a hall bath into a primary suite bathroom?

Often, yes, by borrowing space from an adjacent closet or bedroom. We check which walls are bearing and where the drains can run before designing, because in mid-century homes the joist direction decides where a new shower or toilet can go.

Are heated bathroom floors worth it in Lake Oswego?

For most clients, yes. An electric mat under tile adds roughly $1,500–$3,500 depending on floor size, runs on a programmable thermostat, and makes tile comfortable through our long wet winters.

How do you prevent mold and moisture problems?

We use a bonded waterproofing system in every shower, flood-test the pan before tile, and install a properly sized exhaust fan that vents outside — not into the attic — often on a humidity or timer switch. Those three steps prevent most of the damage we see when we open old bathrooms.

Can you design a bathroom for aging in place?

Yes. Serden Group is CAPS-certified. We build curbless showers, wider doorways, grab-bar blocking, comfort-height fixtures, shower benches and better lighting into the design, so the bathroom works now and later without looking clinical.

Bathroom Remodeling Lake Oswego, OR

Bathroom Remodeling
in Lake Oswego, OR

Primary suites, hall baths and powder rooms for Lake Oswego homes — waterproofed properly, vented properly and planned for the years you’ll live there. CAPS-certified for aging-in-place design, with one project manager from demo to final inspection.

What makes a Lake Oswego bathroom remodel different

Bathrooms here fail in predictable ways: moisture, undersized ventilation and aging plumbing. The fix depends on when the house was built.

Quick answer

A bathroom remodel in Lake Oswego, OR typically costs $30,000–$65,000 in 2026. Powder rooms and refreshes start around $15,000, and primary suites run $65,000–$120,000 or more. Most take 4–8 weeks on site. Moving or adding plumbing needs a City of Lake Oswego permit.

Lake Grove, Palisades, Uplands & Forest Highlands — mid-century homes

Much of the city’s housing is 1950s–70s ranches, split-levels and daylight basements on sloped, heavily treed lots. The bones are usually good; the layouts, wiring and ventilation are of their time.

Hall baths with small tubs converted to walk-in showers
Fans that vented into the attic rerouted outside
Soft subfloor around the toilet and tub repaired before new tile
Small primary baths enlarged by borrowing closet space

First Addition, Old Town & the lakeside — 1920s–40s cottages

The Ladd Estate era left English cottages and Tudor Revival homes with cedar shingle, native stone and plaster walls, plus Oregon Iron Company worker cottages in First Addition. Beautiful, and full of unknowns once walls open.

Galvanized supply lines and cast-iron drains replaced
Floors brought back to level before tile
Period-appropriate tile and fixtures that suit the house
Plaster walls replaced with a proper tile backer in wet areas

Mountain Park & Westlake — the 1970s–90s suites

Primary baths built around a large jetted tub and a small fiberglass shower. Most owners want the reverse.

Unused soaking tubs removed for a larger tile shower
Double vanities with more storage and better lighting
Water-damaged framing under old shower pans repaired
Interior-only work needs no HOA approval

Planning to stay? Aging in place

Serden Group is CAPS-certified (Certified Aging-in-Place Specialist). Many Lake Oswego clients plan to stay for decades, and it costs far less to build these details in now than to retrofit them later.

Curbless showers and wider doorways
Grab-bar blocking behind every wall
Comfort-height toilets and a built-in shower bench
Layered lighting and slip-resistant tile

Lake Oswego bathroom remodel costs and timelines (2026)
Scope	Typical cost	Timeline
Powder room	$15K–$30K	2–3 weeks
Hall or secondary bath	$30K–$65K	4–6 weeks
Primary suite	$65K–$120K+	6–10 weeks
Aging-in-place conversion	$35K–$75K	4–7 weeks

Bathroom permits in Lake Oswego

Moving or adding a fixture, replacing a valve inside the wall, adding circuits or moving walls needs a permit, and in Lake Oswego the plumbing and electrical permits come from the city, not the state. We file them, meet the inspectors and keep the signed-off cards for your records.

Replacing a vanity, toilet or faucet in place generally doesn’t need a permit. We confirm the scope with the city before starting.

City of Lake Oswego Building DivisionCity Hall, 380 A Avenue, 2nd floor, Lake Oswego, OR 97034 · 503-635-0390 · permits@lakeoswego.city. Applications go through the state e-Permitting (Accela) portal; walk-in intake is weekday mornings only, so call ahead.
Trade permitsElectrical, plumbing and mechanical permits are issued by the City of Lake Oswego itself, and Oregon requires the licensed electrical contractor to pull the electrical permit.
Tree code (LOC Chapter 55)Removing any tree 6 inches or more in diameter at 4.5 ft needs a city permit. Where tree protection is required, the fencing has to be installed and inspected before the building permit is issued.
Allowed work hours (LOC 34.10)Monday–Friday 7am–6pm, Saturday 8am–6pm. Permitted work isn’t allowed on Sundays or major holidays without a special permit — we schedule around it.
Review timeFirst plan review commonly runs several weeks. We confirm the current queue with city staff at submittal rather than promise a date.

★★★★★ Google

Primary bathroom remodel

We recently hired Serden Group LLC for a major master bathroom remodel, and we’re extremely happy with the results. Our original space had a large soaker tub and a small 36" x 36" fiberglass shower. After receiving multiple quotes, we chose Serden Group because they offered a clear plan, a thoughtful design approach, and confidence in handling a full transformation. Our project included several significant changes: removing the soaker tub, building a large, fully tiled walk-in shower, relocating the toilet, installing LVP flooring, and even expanding our master closet by moving a wall. They were consistently flexible and willing to work with every new idea or adjustment we brought up. They took the time to explain options, talk through structural considerations, and make sure each decision supported the overall design. One thing we appreciated was that they provided an initial timeline and projected completion date — and they met it. Even when we experienced a family emergency, they were incredibly accommodating and adjusted their schedule to make things easier for us without slowing the project down. The craftsmanship throughout the remodel is excellent. The tile work is beautiful, the closet expansion looks seamless, and the new layout is far more functional and visually appealing. The finished space feels like a true upgrade to our home. We’re very pleased with the entire experience and highly recommend Serden Group LLC to anyone considering a bathroom remodel. They delivered quality work, stayed true to their timeline, and were genuinely supportive when we needed flexibility.

Shawn JGoogle review View on Google

★★★★★ Google

Bathroom remodel

The SERDEN Group did a complete remodel of our two upstairs bathrooms. Every step of the way Dennis, and his team, were communicative, kind, timely, and productive. They worked diligently, caring about the impact of having workers in your home. Everyone was friendly and attended to our creative ideas for the bathrooms. The few times we ever had any concerns, everyone on the team took action immediately and rectified the situation swiftly. In the end we have two amazing new bathrooms. Our family is grateful for SERDEN and are wonderfully reminded daily of their excellent work. Thank you!

Jonah TiceGoogle review View on Google

★★★★★ Google

Bathroom remodel

Dennis and his team an absolutely incredible job on our bathroom remodel. They transformed our upstairs bathroom by installing a new bathtub, toilet, double sink vanity, and lightning. For this project, they performed all of the plumbing, electrical, and tile work. Dennis was easy to work and the team showed up every day until the job was finished. We could not be happier with the job they did, and we look forward to hiring them again when we remodel our downstairs bathroom.

Mario LechugaGoogle review View on Google

★★★★★ Google

Primary & kids' bathrooms · Vancouver, WA

Working w David has been 10/10! I did my research and got several bids for our master bath.. they had competitive pricing and were able to execute my vision better than what I had even imagined!! I had a massive ugly dated jetted tub that took up way too much space and the overall old bathroom was just, not it. David & his AMAZING guys went above and beyond to make sure my dream bathroom was what I wanted. He also did my kids bathroom— and they are so happy with it! Such a nice guy. Def hire them to get your next project done!!

Margaret C.Google review View on Google

★★★★★ Google

Bedroom-to-bathroom conversion

Super happy with the work Serden Group did to convert part of my primary bedroom to a bathroom. Their price was competitive and they came highly recommended by a friend. Dennis is a great communicator. His team was timely, courteous and professional. If I have other reno projects in the future, I will definitely use them again.

Jackie WardlawGoogle review View on Google

★★★★★ Google

Primary bathroom remodel

Our experience with this company has been great. We got several bids, and decided to hire the Serden Group to demo and remodel our master bath and tear out a corner fireplace in our master bedroom. David, the project manager, was there on site checking in often, and making sure things were going smoothly. The contractors had great work ethic and did a great job. We would not hesitate to use them again.

Terry WarlickGoogle review View on Google

★★★★★ Google

Primary bathroom remodel

I used Serden Group to do a Master Bathroom remodel in Spring 2024. They were fabulous to work with from the start. Approachable, responsive and easy to get along with. I didn't know where to start with some things and they guided me through the process. The perfect amount of professionalism but casual at the same time. We received several quotes and they were also the most affordable. They are coming out for another bathroom remodel project soon and I'm looking forward to working with them again!

Rachel GorrettaGoogle review View on Google

★★★★★ Angi

Bathroom remodel

We had Serden Group remodel our bathroom and are really happy with how it turned out. This was something we'd been putting off for a while, and now I wish we'd done it sooner. The crew was respectful of our home, answered our questions, and paid attention to the little details. The tile work looks great, and the whole bathroom feels so much more comfortable to use. We've already recommended them to friends

Kyle S.Angi review · Nov 2026 View on Angi

★★★★★ Google

Kitchen & bathroom remodel

I recently hired Serden Group for a full kitchen and bathroom remodel, and I couldn't be happier with the results! From start to finish, the team was professional, reliable, and detail-oriented. The quality of their work is outstanding — everything from the tile installation to the cabinetry and finishes looks beautiful and well-crafted. They completed the project on time and within budget, which is rare to find these days. I highly recommend Serden Group to anyone looking for top-quality remodeling work. They truly exceeded my expectations!

AstaninaGoogle review View on Google

★★★★★ Google

Whole-home remodel

Fantastic experience! They renovated my entire home with new floors, a full kitchen remodel, and a bathroom upgrade. The kitchen looks amazing with new cabinets, countertop, and appliances, and the bathroom to shower conversion turned out beautifully. Great quality work, finished on time, easy to communicate with, and their pricing was very competitive. Highly recommend!

shevonGoogle review View on Google

★★★★★ Angi

Kitchen & bathroom remodel

We hired Serden Group to remodel our kitchen and bathroom, and we're really happy with how both turned out. It was a big project for us, so we appreciated being able to ask questions and talk things through along the way. The kitchen is much more practical now, and the bathroom feels like a completely different space. We're glad we finally did it and would happily recommend them!

Henry J.Angi review · Nov 2026 View on Angi

★★★★★ Google

Bathroom remodel (rental)

These guys are a 100/10 stars. I have nothing but positive things to say for them. I had a bathroom at my rental property that needed a remodel. I called around a few places looking to obtain quotes. All the other competitors prices were just too much and I sense that their work was not quality. Finally a friend of mine recommended these guys and I was absolutely blown away by the price, professionalism, and quality work. The piece of mind is worth double what I paid. Thank you guys!!!!

Adam FesyukGoogle review View on Google

★★★★★ Angi

Bathroom remodel

Provider was a pleasure to go business with his associate all were very skilled and provided the work promised or better. I would use them again.

Marsel U.Angi review · Jun 2024 View on Angi

★★★★★ Google

Kitchen & bathroom remodel

I couldn't be happier with the work that was done! The designer came up with creative, beautiful ideas, and the team delivered! The whole process was extremely organized and very easy on my part. The kitchen and bathroom are stunning and they tackled all my smaller projects just as well. I'm extremely happy with the results. Thank You Serden Team!

David SonaGoogle review View on Google

★★★★★ Google

Bathroom remodel

I had a very pleasant experience with SERDEN GROUP company. They remodeled my bathroom, and I am completely satisfied with the result. Fast and high-quality work. Denis answered all of my questions, suggested great solutions for the renovation, and delivered everything he promised. I 100% recommend them.

Volodymyr LiashukGoogle review View on Google

★★★★★ Angi

Bedroom, bathrooms & kitchen cabinets

We have used Serden Team for 3 projects. They remodeled our master bedroom and bathroom, refaced kitchen cabinets and built a beautiful surround for my refrigerator so it looks built in and remodeled a secondary bathroom. Their work is fantastic. They are easy to work with and communication is the best. I can trust them to do a great job and do the work properly the first time. Wonderful company and will refer them gladly.

john K.Angi review · Oct 2023 View on Angi

Proudly Serving
Lake Oswego & Clackamas County

From First Addition and Old Town to Lake Grove, Westlake, Palisades and Mountain Park — plus West Linn, Dunthorpe and Tualatin. We handle City of Lake Oswego plumbing and building permits for every bathroom that needs them. Our Lake Oswego office is at 333 S State St, Lake Oswego, OR 97034 — design consultations by appointment.

Lake Oswego First Addition Old Town Forest Highlands Lake Grove Westlake Mountain Park Palisades Uplands Evergreen West Linn Dunthorpe Tualatin

What Does a Bathroom Remodel
Cost in Lake Oswego, OR?

Honest 2026 planning ranges by bathroom type. Each includes demolition, waterproofing, labor, permits and cleanup; Oregon adds no sales tax.

Powder / refresh

$15K–$30K

Powder room or same-layout hall bath

Vanity, toilet and fixture replacement
New tile floor and lighting
Exhaust fan upgraded and vented outside
Tub-shower retiled on existing valve
Plumbing permit where required

Most Lake Oswego baths

$30K–$65K

Full hall or secondary bath remodel

Demolition to studs
Bonded waterproofing, flood tested
Tile walk-in shower or new tub
New valves, supply and drain lines
Heated floor option

Primary suite

$65K–$120K+

Layout changes, custom finishes

Tub removed or relocated
Curbless shower with linear drain
Double vanity and custom storage
Frameless glass and stone surfaces
Aging-in-place details built in

Ranges are planning figures, not quotes. Your fixed price follows a site visit and a written scope. Get a free itemized estimate →

More for Lake Oswego homeowners

Everything Serden Group builds in Lake Oswego, the same service in nearby cities, and the planning guides clients read before they start.

Other Lake Oswego Services

Kitchen Remodeling in Lake OswegoLayouts, cabinetry, islands and wall removal.
Shower Remodeling in Lake OswegoTub-to-shower conversions and curbless walk-ins.
Interior Remodeling in Lake OswegoOpen floor plans, flooring, trim and built-ins.
Whole Home Remodeling in Lake OswegoMulti-room renovations under one contract.
Home Additions in Lake OswegoBump-outs, primary suites and second stories.
ADU Builders in Lake OswegoDetached units, conversions and SDC waivers.
Exterior Remodeling in Lake OswegoSiding, windows, roofing, decks and rot repair.

Bathroom Remodeling Nearby

Bathroom Remodeling overviewOur full service, materials and process.
Bathrooms in Portland, OROur work across Portland and Multnomah County.
Bathrooms in Vancouver, WAAcross the river in Clark County.
Bathrooms in Camas, WAEast Clark County.
All service locationsEvery city and community we build in.

Planning Guides

Bathroom remodel cost guideCost by scope, from powder room to primary suite.
Bathroom remodel timelineA week-by-week look at demo through final.
Aging-in-place remodelingWhat our CAPS certification means for your plan.
The most expensive part of a bathroomWhere bathroom budgets go — and where to save.

Bathroom Remodeling
in Lake Oswego, OR

What makes a Lake Oswego bathroom remodel different

Lake Grove, Palisades, Uplands & Forest Highlands — mid-century homes

First Addition, Old Town & the lakeside — 1920s–40s cottages