Home Remodeling Contractors in Redmond, WA
Bathrooms, kitchens, decks, additions and ADUs for Redmond houses, planned around creek buffers, aquifer zones and the city's own permit portals.
- We request your permit through Redmond's Plan Review Online portal.
- Before demolition you sign off on a written price, broken down line by line.
- One project manager is your contact from the first walkthrough to the last inspection.
By appointment. Limited start dates.
- Over 200 projects
- 4.9 on Google
- 20+ years of experience
- WA license VOLCABI792C6
Three Redmond rules that shape a remodel
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The Redmond rule
Salmon creeks and Lake Sammamish
Since May 12, 2026, the Sammamish River, Bear Creek and Evans Creek carry a 200 foot shoreline buffer, with a further 15 foot building setback from that buffer. On Lake Sammamish the waterfront building setback is 35 feet, reducible to 20 feet if the setback area is replanted with mostly native vegetation.
What we doWe measure your house against those buffers on the city's maps before any plan is drawn.
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The Redmond rule
Houses above the city's wells
Redmond draws water from its own public wells, and the zoning code maps Critical Aquifer Recharge Areas I and II by a lot's distance from those wells and how fast groundwater travels to them. Activities that could contaminate the aquifer are restricted inside both zones.
What we doWe pull the aquifer and critical area layers for your parcel before design.
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The Redmond rule
Sprinklers in a backyard ADU
Redmond requires fire sprinklers in new homes and in detached ADUs. For an addition or a remodel, the city's Fire Department guidelines decide whether sprinklers are needed.
What we doYour written, itemized price shows the sprinkler work as its own line.
Knowing these three early keeps a Redmond project out of redesign once it reaches plan review.
What homeowners say about working with us
I just got my bathroom redone by Volcano, and Wow im in love With the final look! Bar was very communicative. Its feel like he was there with me every step of my way, making sure i was kept in the loop. His team was super friendly and professional. They made tge tge process smooth. My new bathroom is everything i hoped for and more. Thank you Volcano!
Overall, we had a great time with Volcano Builders. There were a few small delays, but they were clear in their communication and kept things moving. The last kitchen remodel turned out great, and the quality seems like it will last for a long time.
Bar's team completely transformed my outdated Seattle bathroom with their exceptional work. Their communication was excellent, keeping me informed every step of the way. The quality of their workmanship exceeded my expectations, turning my old bathroom into what I wanted. I highly recommend Bar and his team for any remodeling project; they're professional, efficient, and produce outstanding results.
Volcano Builders did a great job on our master bathroom. The tile work and finishing touches were great. Even though they weren't the cheapest quote we got, you can tell they care about quality.
Volcano did a master bath remodel for us. The project was completed efficiently and on time. All of their workman were courteous and hard working. When we had a couple of material delivery delays they kindly adjusted their schedules. Their pricing was fine and the terms of the contract were fulfilled. We highly recommend Volcano Building.
Gad an amazing experience with Volcano Builders on my kitchen project. Bar my project manager was friendly. He make sure to keep me updated during the whole project. Also is team is very nice.
Homeowners on camera
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Mark
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Yoshio Inoue
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Stephanie
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Linda, Part 1
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Clinton & Joan
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Mr. Will
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Teresa
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Linda, Part 2
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Michelle
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Sarah & Robert
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Clifford Harris
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Rebecca
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Mrs. Sergeant
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Paul & Burley
I'm Bar, founder of Volcano Builders. I have been building for 20+ years, and our main office in Bellevue is the closest of our five Washington offices to Redmond. Most remodeling problems start before any work does: a vague price, a missed permit step, nobody answering the phone. So every project we take on gets a written, itemized price before work starts, a design and permit plan built around your city's rules, and one project manager you can actually reach.
Bar UngerFounder, Volcano Builders
Licensed, bonded and insured · CC VOLCABI792C6 · UBI 604-700-955
Remodeling services in Redmond
Bathroom Remodeling
Bathroom remodel in Redmond, WA: showers, tubs, tile, vanities and the plumbing and venting behind them.
Kitchen Remodeling
A kitchen remodel in Redmond, WA, from the layout and cabinets to counters, lighting and appliances.
Basement Remodeling
Finished living space, a guest suite or a media room below the main floor.
Deck Building
New decks, rebuilds, stairs and railings in Redmond, with the permit filed whenever the city requires one.
ADU and DADU
Redmond zoning allows two ADUs on each residential lot, each up to 1,000 square feet, attached, inside the house or detached.
Home Additions
Added bedrooms, suites and family rooms, drawn to Redmond lot coverage limits and reviewed by the city before work starts.
Whole Home Renovation
Home remodeling in Redmond, WA across several rooms or the whole house, run as one project with one schedule.
Siding
Siding repair, replacement and installation, with the barrier and flashing behind it done first.
Window Replacement
Replacement windows measured, ordered and installed, sized for egress, safety glass and energy rules.
Foundation Repair
Crack repair, drainage, basement waterproofing and seismic retrofits, engineered where the city requires it.
How your Redmond remodel works
Three steps, one team, and a written price before anyone picks up a tool.
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Consultation
We visit your home, walk the space and talk through your goals and budget.
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Design and permits
We design the project, price it in writing and handle the City of Redmond building permit.
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Build and hand over
One project manager runs the build through the final walkthrough.
Recent projects
Luxury master bathroom with a marble slab shower
Redmond, WA
Master bathroom with a wood slat wall
Redmond, WA
Black marble-look basement bathroom
Redmond, WA
Open walk-in shower master bathroom
Redmond, WA
Navy vanity and soaking tub bathroom
Redmond, WA
Tub to walk-in shower bathroom remodel
Kirkland, WA
General contractor guide to Redmond, WA: permits, creeks and ADUs
How Redmond permits are filed
Redmond's Development Services Center issues building permits through two online portals. Over-the-counter permits, the ones that need no plan review, go through the Redmond E-Permitting System (REPS). A remodel, addition or ADU that needs review starts as a request in Plan Review Online (PRO), and the city emails a permit number and upload instructions within 48 hours.
Plans go in as PDFs; the city does not accept paper plans. Electrical, mechanical and plumbing work are separate applications from the building permit. Each application gets a Project Coordinator, and if reviewers need more, the city sends an Additional Information Issues Matrix listing what to fix.
The city's permit pages post no review times for residential work, so we set your start date once the city responds. An issued permit expires if no inspection happens within 365 days, and each passed inspection resets that clock.
Critical areas, creeks and the lake
The zoning code lists five kinds of critical area in Redmond: fish and wildlife habitat conservation areas, wetlands, frequently flooded areas, geologically hazardous areas, and critical aquifer recharge areas, each with its buffers. Work that disturbs soil, adds impervious surface or alters a structure near one of them falls under RZC 21.64.
Four water bodies carry shoreline jurisdiction, generally the land within 200 feet of their ordinary high water mark: the Sammamish River, Lake Sammamish, Bear Creek and Evans Creek. The city's latest shoreline amendment, approved by the Department of Ecology, took effect on May 12, 2026; it widened the stream buffers to 200 feet and added a 15 foot building setback beyond them.
ADUs and tiny homes
Redmond Zoning Code 21.04.1110 says: "Two ADUs or tiny homes shall be allowed on each residential lot." An ADU can be added to the house, built inside it or placed in a detached structure, and its total size is capped at 1,000 square feet; a tiny home is capped at 400. The code lets the city approve a larger ADU when it fills an entire floor of the house.
A detached ADU must meet the same lot coverage limits as a house, though it may sit right on a lot line that abuts an alley or right of way. It also needs fire sprinklers, which the city requires for detached ADUs as it does for new homes.
What Redmond's housing looks like
The Census Bureau's 2024 American Community Survey puts the median year built at 1997, and about a third of all homes went up in 2010 or later. Roughly another third date from the 1970s and 1980s.
Only about a third of Redmond homes are detached single-family houses, and nearly as many sit in buildings of 50 units or more. A house from the 1970s or 1980s tends to need the bigger rethink, from layout to insulation, while a newer townhome or condo is more often a finish and fixture job.
Permits: City of Redmond Development Services, How to Apply and Residential Permits pages, and the Residential Application Packet, checked September 2026. Critical areas and shorelines: Redmond Zoning Code 21.64 and 21.68, the Shoreline Master Program element of the Comprehensive Plan, and the Washington Department of Ecology approval of Redmond's SMP amendment (2026). ADUs: Redmond Zoning Code 21.04.1110 (Ord. 3220 and 3261), checked October 2026. Housing: US Census Bureau, American Community Survey 2024 1-year estimates.
Redmond remodeling questions, answered
Does a bathroom remodel in Redmond need a permit?
Yes, whenever it goes past surface finishes: Redmond lists alterations and remodels of an existing home among the projects that need a building permit. Plumbing, electrical and mechanical work each take their own application, and a reviewed permit is requested through the city's Plan Review Online portal.
When does a new deck in Redmond need a permit?
Most do. The city exempts only a detached deck that is not more than 30 inches above the adjacent grade and not over a basement or story below. A deck attached to the house, or higher than that, goes through a building permit.
How many ADUs can I add to a Redmond lot?
Two. Redmond Zoning Code 21.04.1110 says "Two ADUs or tiny homes shall be allowed on each residential lot", in any mix of attached, interior and detached units. Each ADU can be up to 1,000 square feet, a tiny home up to 400, and a detached ADU must meet the lot coverage limits and be fitted with fire sprinklers.
My yard backs onto Bear Creek or the Sammamish River. What changes?
Expect less room to build near the water. Both are shorelines of the state with a 200 foot buffer, plus a 15 foot building setback from that buffer, and an addition or new structure has to stay outside both.
How do I check a general contractor in Redmond, WA?
Look them up with the Washington Department of Labor and Industries, which the city itself points homeowners to. Redmond also asks for current City of Redmond business license and contractor information before it releases a permit. Our state registration is VOLCABI792C6.
What does a kitchen remodel in Redmond cost?
That comes down to scope more than size: keeping plumbing, gas and walls where they are costs far less than moving them, and a 1970s or 1980s house can need electrical or insulation work once it is opened. You receive a written, itemized price before work begins, and typical ranges by project type are in our Remodeling Pricing Guide.
Redmond neighborhoods we serve
- Downtown
- Overlake
- Education Hill
- Grass Lawn
- Idylwood
- North Redmond
- Bear Creek
- Sammamish Valley
- Southeast Redmond
- Willows / Rose Hill
Nearby cities
Book your Redmond consultation
Four quick steps. Tell us about your project and we’ll reach out to discuss it and see if we’re the right fit.