Structural Repair in Shoreline, WA
Structural wood repair for posts, beams, joists and walls, done safely and to code. These members carry decks, walls and roofs, and they fail slowly and quietly. We shore the structure before anything comes out, replace damaged framing with properly sized lumber and code-rated connectors, and fix the water problem that caused the damage in the first place. We serve homeowners across Shoreline and nearby Seattle and Lake Forest Park.
Before
AfterPost rebuilt and wrapped
Why structural repair comes up so often in Shoreline
Split-levels and daylight basement homes in Shoreline often have framing that sits close to grade on one side of the house, and that is where we find failing sill plates and rim joists. Long-term leaks at old sliding doors and decks can soften the floor framing behind them, and porch posts set directly in concrete rot out at the base. We support the structure, replace damaged sills, rim joists, posts and headers with treated lumber, and fix the moisture source so the new framing stays dry.
Shoreline is mostly a postwar city. Neighborhoods like Ridgecrest, Briarcrest, Parkwood and Meridian Park filled in during the 1950s and 60s with ramblers, split-levels and daylight basement homes on generous lots. Many still have original cedar or hardboard lap siding, single-pane windows long since replaced without new flashing, and attached decks added in the 70s or 80s. Richmond Beach and Innis Arden have larger custom homes, some with view decks toward Puget Sound. Newer townhomes and apartments are rising near the light rail stations and along Aurora Avenue, which brings modern siding systems into a city of mostly older houses.
Shoreline’s west side faces Puget Sound, and storms coming down the Sound drive rain hard into west and south walls near Richmond Beach and Innis Arden. Inland, the challenge is shade and damp rather than wind. Mature evergreens, ravines along Boeing Creek and Thornton Creek, and wet winters keep decks and lower siding damp for months. Low-slope roofs on 1950s ramblers shed water close to the walls, and short eaves give siding little protection from steady rain.
Our crew comes out from our Woodinville office, and we also work in nearby Seattle, Lake Forest Park, Edmonds and Mountlake Terrace.
When to call about structural repair in Shoreline
- Visible rot in the framing when siding is removed
- Rusted or missing hangers and ties
- Doors or windows that start to stick
- Soft subfloor near exterior doors
- Sagging decks, floors or rooflines
Our structural repair process, step by step
Assess the load path
We find what the damaged member carries and how far the rot goes.
Shore it safely
Temporary supports go in before anything structural comes out.
Replace the framing
New posts, beams, joists or plates sized for the load.
Connect and protect
Code-rated hardware, flashing and raised post bases.
Close up
Sheathing, siding and trim rebuilt and finished to match.
Recent structural repair projects near Shoreline
What we do in Shoreline
Posts and beams
Replace rotted posts and beams with proper connectors and raised bases.
Deck and balcony framing
Rebuild framing that has started to sag.
Joists and rim boards
Sister or replace damaged joists and rotted rim boards.
Hardware upgrades
Modern hangers, ties and post bases to current code.
Temporary shoring
Support the structure safely while members are replaced.
Sill plates and walls
Replace rotted sill plates and wall framing at the foundation.
Neighborhoods and permits in Shoreline
Richmond Beach and Innis Arden sit on bluffs above the Sound, so wind exposure and salt air wear down paint, flashing and deck railings fastest there. Ridgecrest and North City are flatter and more suburban, with rot driven by age and short eaves. Echo Lake and Ballinger-area streets near Lake Ballinger see more morning dampness. Lots bordering Shoreview Park and the Boeing Creek ravine stay shaded and mossy, especially on north-facing walls.
Simple like-for-like repairs often don’t need a permit in Shoreline, while structural work, new decks, and larger siding or window replacements usually do. Permits are issued by the City of Shoreline. We check with the City of Shoreline before starting so the scope, the paperwork and the inspections are all lined up.
How we fix damaged framing
| Method | Used when | What it involves | Typical time |
|---|---|---|---|
| Sister a joist or rafter | The original member is weakened but mostly sound | A new member is fastened alongside to share the load | Hours to a day |
| Replace a post or beam | The member is rotted through or cracked | Temporary shoring, new member, new connectors | 1–3 days |
| Replace sill plate | The plate on the foundation has rotted | Short sections shored and replaced one at a time | 2–5 days |
| Add a post and footing | A span is sagging or a footing failed | New footing and post on a raised base | 1–3 days |
What structural repair typically costs in Shoreline
| Project | Typical scope | Price range | Timeline |
|---|---|---|---|
| Single post or beam | Shore, replace and add new connectors | $1,500 – $5,000 | 1–2 days |
| Sill plate section | Replace a rotted run of plate at the foundation | $3,000 – $10,000 | 2–5 days |
| Deck or porch framing | Rebuild joists, beams and posts under a deck or porch | $6,000 – $18,000 | 1–2 weeks |
| Larger framing rebuild | Wall or floor framing over a bigger area, often with a permit | $15,000 – $35,000+ | 2+ weeks |
These are typical 2026 ranges we see for structural repair in Shoreline and nearby cities. Your price depends on what we find once the area is open, access and height, and the materials you choose. Every estimate is free, in writing and based on an on-site inspection with photos.
Structural repair in Shoreline: cost and timing
Most common causes
Wood in contact with concrete or soil
Posts and plates without a barrier or raised base wick moisture and rot from below.
Long-term leaks
Years of small leaks at decks, doors and walls slowly rot posts, beams and sill plates.
Undersized or failed connections
Old nails and missing hangers let members shift, crack and take on water.
What drives the price in Shoreline
Structural repair in Shoreline is priced by how much framing has to be replaced, how much shoring is needed, access, and whether a permit or engineer is required. A single post or short section of sill plate is a smaller job than rebuilding framing under a deck or wall. You get a written price after the free inspection.
Typical timeline
Most post, beam and sill repairs take a few days. Larger framing rebuilds take one to two weeks, plus permit time if one is required.
Backed by a 24-month workmanship warranty
Written scope
You know exactly what is included before work starts, with photos of what we found.
Our own crew
The people who quote your job are the people who do it, start to finish.
Clean site daily
Debris is hauled away and your yard is left the way we found it.
24 months covered
If our workmanship fails within two years, we come back and make it right.
What homeowners near Shoreline say
“I hired Eco Home Repair to fix my front steps and landing, which had become badly rotted and unsafe. Alex was fantastic to work with from start to finish with great communication, clear expectations, and always responsive. The project included decking…”
“As a Condominium owner finding contractors that can work with multiple concerns at once is a challenge. The team at Eco Home Repair has been our go-to for several projects including deck and front porch repairs, siding replacement, chimney chassis repairs…”
“Alex responded quickly and came out the next day to provide a free quote for a potential siding issue that I was very concerned about. He inspected it, determined it wasn't a major issue, and recommended some simple, no cost, DIY steps I can do to take care…”
5.0 average from 106 reviews on Google, Thumbtack, Angi, HomeAdvisor and Yelp. Read our reviews on Google.
Questions Shoreline homeowners ask about structural repair
Why is the siding rotting at the bottom of my Shoreline rambler?
Do structural repairs in Shoreline need a permit?
How long do structural repairs take?
Do you work under decks and porches?
Can you work while we live in the house?
More from our crew in Shoreline
Structural repair near Shoreline
Tell us about your structural repair project in Shoreline
- Licensed, bonded & insured
- Free on-site estimates
- 24-month workmanship warranty
Book a free structural repair inspection in Shoreline
We inspect the damage on-site, show you photos of what we find and give you a written price before any work starts.