Siding, windows, roofing, trim, decks and covered outdoor rooms for Lake Oswego homes, built to shed water in a climate that rains most of the year. We treat the exterior as one system — barrier, flashing and cladding — and handle HOA and city approvals.
Lake Oswego’s tall canopy is a big part of its appeal, and it’s hard on houses: shaded walls that never fully dry, moss on roofs, needles in gutters, and rot where trim meets siding. We open the wall, find the source of the water, fix the barrier and flashing, and then reclad.
Siding repair and replacement, rainscreen and flashing, windows and doors, roofing, gutters, trim, exterior paint, decks and covered patios — with Mountain Park and Westlake HOA submittals and City of Lake Oswego permits handled.
Fiber cement, engineered wood and cedar over a properly detailed water-resistive barrier — with rot repair and flashing corrected before the new siding goes on.
Full-frame and insert replacement, patio and entry doors, with sill pans and head flashing installed to the manufacturer's wet-flashing detail.
Architectural composition and standing-seam metal, plus underlayment, ventilation, valley and pipe flashing, gutters and downspout routing away from the foundation.
Framed decks, covered patios and outdoor kitchens — engineered footings, flashed ledgers, and a roof that makes the space usable eight months a year.
We inspect the siding, trim, windows and roof, open test areas where rot is likely, and tell you whether to repair or replace.
HOA submittals where required, City of Lake Oswego permits for structural work, windows or decks, and tree protection where needed.
Rot repair, weather barrier and flashing, then siding, windows, roofing and trim, finished and inspected.
Why Homeowners Choose Serden
Homeowner Stories
Real reviews, quoted word for word from the sites our clients left them on. Every card links back to that site.
Across 400+ reviews on 9 platforms
Also rated on Houzz, Facebook, Nextdoor, BBB (A+ rating) and Networx.
Read all 400+ reviewsIt's been a month since they did our siding and exterior paint. Wow, I'm so happy we chose these guys! We've received so many wonderful comments from our neighbors too! Dennis and David were so easy to work with, the quotes were awesome, they had a great crew, speedy service, and kept everything clean.
Serden replaced all of our siding with hardie plank, fixed some rotted facia, capped all of our facia with hardie plank, sealed our exterior, and then painted the trim and siding. They were detailed, hard working, and took great care to do everything correctly. I genuinely feel that they treated my house as if it was theirs.
Serden Group just finished hardie siding and aluminum gutters on my home. I couldn't be happier with the quality of the product and workmanship. The crews were efficient and considerate. The pricing was competitive. It was a pleasant experience.
I was very pleased with the work done (new siding, new roof, house repainted and gutters and down spouts) they did a timely job along with the way they kept our place clean during construction all the workers where polite and went out of their way to make sure we where satisfied with the job, they came back for touch up work. I feel like I got real value for all the work done.
Serden did a great job on my vacation home in WA. They transformed the property, I had all my floors and windows changed out. Everything looks beautiful, up to date and modern. I will be using them again to remodel my kitchen and bathroom. The whole experience was easy and quick.
Right after I got into HomeAdvisor system, Igor (Dennis) gave me a call to quote my foggy window. During the process, Igor always responses to my text message fast. He also helped to replace my window trim and fix my fence door too. Work is well done as promised. He is a nice person to work with.
Igor and his crew did a superb job of installing our 6 new windows in the front of our house.They arrived promptly on the day of installation and gave us exactly the windows that we had ordered with the correct grid pattern,they were careful not to damage the flowers,cleaned up their work area afterwards and finished the project faster than we had anticipated,and the value was second to none.We highly recommend the Serden Group!
All new impact resistant windows installed in my home. The install guys were very professional, efficient and left my home spotless! My windows look fantastic! Thanks to all involved for a job well done!
Had an amazing first experience with Serden Group a few years ago when they replaced near 30 windows on our old 1950 home. They worked with historic board and was timely. Amazing. Recently we had some large screen in a space off the house with laundry we want to dry in more to make a mud room. They needed to put in two large windows. Dennis was great to explain everything. Things were super fast. They scheduled installation and done really quick. That room is already cooler. Overall good experiences.
Very prompt and easy to work with. All our options were discussed and all our questions were answered. Windows look beautiful. We ended up replacing all the screens on our porch with windows to create a sunroom.
The crew was courteous and reliable. The crew replaced damaged siding, caulked all seams on the siding and did a great job with the painting. I am very satisfied with the work performed.
Dennis would call and let me know when he was coming out. He stayed with the price he quoted me. Very professional and polite. In fact I also hired them to install gutters for my house and separate garage, I have recommended them to my sister.
I was able to work with Dennis crew and they were incredible. Both friendly and professional. The New Windows look fantastic. Thanks so much for your help today! In spite of weather challenges Dennis went the extra mile to help me, especially since I had a deadline to meet. Thanks again Dennis for the great service and awesome crew.
On July 2017 we had to replace all our windows in our 30-year old house. It was a pretty good experience. The pricing and the sales representatives were really good. The installers were outstanding and answered all of our questions. We had no problems with the windows installed and they look really good. It was a really good experience overall.
They were top notch from top to bottom! The sales person got back to me and answered all my questions, the installation crew was incredible and they did a really great job and there are very little seams on my whole house. The clean up crew was great and the whole job for the entire exterior of my house was done in two days. They installed siding for the whole house, installed soffit and fascia boards, and installed the gutters and downspouts. The house looks phenomenal and they did a really great job.
Their crew did a wonderful job. He did the siding of my whole house and replaced all my windows. His quality is top of the line and so is his workmanship. I could not be more pleased with the work done. Everyone compliments his work when coming to my house.
Local Knowledge · Lake Oswego, OR
Most exterior failures here trace back to water that couldn’t get out. These are the issues that shape an exterior scope in Lake Oswego.
An exterior remodel in Lake Oswego, OR typically costs $50,000–$120,000 in 2026 for full siding replacement or siding plus windows. Single-system projects such as a roof or window package start around $18,000, and full envelope renewals run $120,000 or more. Homes in Mountain Park and Westlake need HOA approval for exterior changes.
Heavy tree cover and long wet seasons keep north and shaded walls damp.
Built in phases on Mt. Sylvania from the late 1960s into the 1980s. Interior work is yours to decide; anything that changes the exterior needs written approval from the Mountain Park HOA architectural committee as well as city permits.
Larger two-story homes with builder-grade finishes that are now 30–40 years old. The Westlake HOA design review committee must approve exterior changes — siding, roofing, windows, paint and tree removal.
Some projects need approvals beyond a standard permit.
| Scope | Typical cost | Timeline |
|---|---|---|
| Roof replacement | $18K–$45K | 1–2 weeks |
| Window package | $20K–$50K | 1–3 weeks |
| Full siding with rainscreen | $50K–$120K | 4–8 weeks |
| Full envelope renewal | $120K+ | 8–12 weeks |
Structural repairs, enlarged window openings, most decks and covered patios need a City of Lake Oswego building permit, and work near protected trees may need a tree protection permit. Like-for-like siding or roofing replacement is often simpler, but we confirm scope with the city.
HOA approval is separate. In Mountain Park and Westlake we prepare the submittal — materials, colors and drawings — before scheduling work.
From First Addition and Old Town to Lake Grove, Westlake, Palisades and Mountain Park — plus West Linn, Dunthorpe and Tualatin. We prepare Mountain Park and Westlake HOA submittals as part of the job. Our Lake Oswego office is at 333 S State St, Lake Oswego, OR 97034 — design consultations by appointment.
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Questions? Call (360) 836-7775
Three tiers cover most exterior projects. Figures are installed and include tear-off, disposal, barrier, flashing, trim and permits where required. Rot repair is priced as a written allowance.
Ranges are planning figures, not quotes. Your fixed price comes after a walkthrough, test cuts and a written scope.
Both sides of the lake, from 1920s First Addition cottages to 1980s Westlake and Mountain Park homes.
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Everything Serden Group builds in Lake Oswego, the same service in nearby cities, and the planning guides clients read before they start.
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