General Construction Services
Siding Replacement Lewiston ID Home Exterior Repair
Need siding replacement in Lewiston ID? We replace damaged, dated siding across all of Latah County Idaho with weather-tough materials – LP SmartSide, HardiePlank, and Diamond Kote finishes. Fix rot, wind damage, and failing seams, boost efficiency, and refresh curb appeal.
From the Orchards to Normal Hill and the river level neighborhoods, Lewiston homes see heat, wind, and valley moisture that weak siding just cannot handle. We upgrade exteriors with vinyl, LP SmartSide, and HardiePlank systems tailored to your lot and exposure.
Expect fast estimates, clean job sites, and code compliant flashing and weather barriers on every project. Book your Lewiston siding repair or replacement today and give your home a exterior that matches the view of the Snake and Clearwater.
Posted on Kevin CannonTrustindex verifies that the original source of the review is Google. Had a small roof repair after a home inspection that needed addressed within the month. They answered my call right away and were happy to help, fitting us in their schedule almost instantly. Luke and Alex were super nice and professional both on the phone and in person. Some poorly timed snow storms delayed them a few days but they were great at communicating what their plans were. Highly recommend these guys!Posted on SCTrustindex verifies that the original source of the review is Google. GCS went out right away to assess my roof, made the repair and gave ma great price for a new roof. They sent me photos during and upon completion of thr process. I dont live there full time, but my neighbor said they worked fast and furious to get it done. They did my roof during the winter, and completed it before the weather became a burden. Would definitely use them again for other projects I have coming up.Posted on Norman chesserTrustindex verifies that the original source of the review is Google. We hired this general contractor for our home renovation, and the results exceeded our expectations. The team was punctual, skilled, and communicated clearly throughout the project. They stayed on schedule and within budget while delivering high-quality workmanship. The entire process was smooth and stress-free. I would confidently recommend them for any construction or remodeling needs.Posted on Barbara FrananoTrustindex verifies that the original source of the review is Google. Our barn roof was damaged by a windstorm in December 2025. Our insurance appraiser estimated the cost to replace the damaged panels was less than our deductable so we were responsible out of pocket for the repairs. We contacted GCS, and Alex came out to give us an estimate for the repairs. His bid for parts and labor was less than the insurance estimate. We have also had leaks in other areas of the roof. Alex noticed the origional installers had used screws that were too small. He suggested removing the screws and replacing with the larger proper size and installing aditional screws to spec fastener pattern. They were able to come right away before weather got bad again, and did an outstanding job. We were very impressed by the level of professionalism and ease of interaction. We have no complaints! Thanks!Posted on Dan MaurerTrustindex verifies that the original source of the review is Google. GCS construction completed three separate projects at my home. New vinyl siding, new shed, and repair of a sagging garage door header. Alex and his crew did a great job and am very happy with the results of all the projects. Work was done in a professional and timely manner and I was kept apprised of what they were doing and they were available to answer all of my questions. I highly recommend GCS!Posted on Anne ETrustindex verifies that the original source of the review is Google. Alex did a phenomenal job on my home sealing and siding. He fixed the issue I had around my sliding glass door beautifully also.Posted on Laurie McGrawTrustindex verifies that the original source of the review is Google. I can't say enough about this company. They go above and beyond in customer service. We have worked with them on 3 projects (one of which is not complete yet and I will be writing a review when it is) They represent great quality workmanship, honesty, integrity, job completed in a timely manner, they clean up after themselves you will not have to walk around picking up empty drink bottles, garbage and debris, they take pride in what they do, you will not find them standing around on there cell phones. Luke, Alex and Caleb put up with all of my questions and non sense and are always kind and patient. I have not seen anything they are not capable of doing or willing to take on and do it well. Thank you guys for a fantastic experience. Highly recommend.Posted on Sandra ChavezTrustindex verifies that the original source of the review is Google. Amazing service definitely recommend!!!Verified by TrustindexTrustindex verified badge is the Universal Symbol of Trust. Only the greatest companies can get the verified badge who has a review score above 4.5, based on customer reviews over the past 12 months. Read more
"Top notch quality and service! They work hard to make sure all projects are done timely and with professional quality. Wouldn’t trust anyone else on the Palouse!"
- Mallery Sisson, 5-Star Google Review
Why does siding matter in Lewiston’s river valley climate?
Lewiston sits at the confluence of the Snake and Clearwater Rivers, with homes stretched from the levee to the Lewiston Hill and out toward Tammany. Without high quality siding, that valley weather will expose weak spots quickly:
- Water damage: River fog, sideways rain, and irrigation overspray work into cracked or low grade cladding.
- Mold and mildew: Shaded walls along the levee and Normal Hill stay damp and trap moisture.
- Pests: Gaps at lower courses let insects and rodents into basements and crawlspaces.
- Fading and chalking: South and west walls above town bake under long summer sun.
We use LP SmartSide, Diamond Kote, HardiePlank, vinyl siding, and steel over a real moisture managed wall, so your exterior acts like a shield – not a sponge.
What siding contractor services do you offer in the Lewiston Clarkston valley?
From Normal Hill to the Orchards, the Levee, and Tammany acreage, our team handles:
- Full siding tear off and replacement for homes and shop houses.
- Siding repairs on wind, hail, and impact damaged walls.
- Trim, soffit, and fascia upgrades that sharpen rooflines and improve ventilation.
- Conversions from tired hardboard or brittle old vinyl to modern vinyl, engineered wood, or fiber cement systems.
We design each project around how the building actually sits in the valley – river level, bench, or hill.
Do you handle siding replacement across Lewiston and nearby areas?
Yes. We replace siding throughout:
- In town neighborhoods – Normal Hill, the Orchards, Downtown corridors, 21st Street area.
- River level properties along the levee and Clearwater waterfront.
- Acreages out toward Tammany and along US 12 and US 95.
Our installs are tuned for hot summers, mild but wet winters, and canyon winds that roll through the valley.
What does a professional siding replacement include in Lewiston?
We go behind the siding, not just over it:
- Safe removal of old siding and inspection of sheathing and framing for hidden damage.
- Install of premium WRB or housewrap, fully taped and integrated with openings.
- Window and door flashings, sill pans, and drip caps sized for river valley storms.
- Soffit and fascia repairs or replacements for healthy attic ventilation.
Then we install your chosen system – LP SmartSide, Diamond Kote, HardiePlank, vinyl siding, or steel – laid out with straight courses and clean transitions that look good from Bryden Canyon, the Blue Bridge, and neighborhood streets.
Should you repair or replace your siding in Lewiston?
We look at age, location, and damage:
- Replace when boards are soft, swollen, cracked, or when paint will not hold on Normal Hill or Orchard slopes.
- Repair when a single wall took hail, sprinkler damage, or impact and the rest of the system is sound.
- Inspect first when you see interior staining, musty smells, or suspect a hidden leak around decks or balconies.
Homes on exposed benches and hillside streets often benefit from a full system replacement instead of years of patching.
Why does Lewiston’s climate beat up siding?
The valley mixes:
- River moisture and fog on lower streets.
- Heat and UV off concrete, rock, and pavement in summer.
- Wind channels along US 12, US 95, and Bryden Canyon.
- Occasional cold snaps that stress low grade products.
We respond with proper WRB, rain detailing, and well installed vinyl, engineered wood, fiber cement, or steel that can handle the microclimate where your house actually sits.
How do siding repairs work on Lewiston homes and shops?
When full replacement can wait, we:
- Replace damaged courses and trims on sun beaten or storm hit walls.
- Re flash problem areas at decks, balconies, and roof to wall ties.
- Swap out brittle, wavy vinyl with modern panels that better match profile and color.
- Seal penetrations and repaint or touch up to blend repairs.
You get photos and clear notes on how long we expect the remaining system to last in valley conditions.
What home exterior repairs do you handle during siding projects?
- Sheathing and framing repairs where leaks have been active.
- Ledger, stair, and balcony rebuilds where water has crept in for years.
- Soffit and fascia updates to improve roof performance on hot valley roofs.
- Gutter and downspout adjustments to protect foundations and sloped yards.
- Air sealing and insulation upgrades while walls are open.
What is the siding inspection and estimate process in the Lewiston Clarkston valley?
We meet you at the property and:
- Walk all elevations, from river side to hill side, and document problem areas.
- Take moisture readings where leaks are suspected.
- Review LP SmartSide, Diamond Kote, HardiePlank, vinyl, and steel options based on exposure and budget.
- Deliver a line item estimate that separates repairs, WRB and flashing, siding materials, and labor.
How long does siding replacement usually take in Lewiston?
- Day 0 – Site measure, moisture readings, and product selections.
- Day 1 – Demo, substrate repair, WRB, and flashings.
- Days 2–4 – New siding, trim, caulk, and finish details.
- Wrap up – Final walkthrough, cleanup, and photo documentation.
Which siding materials fit different parts of Lewiston?
- Diamond Kote over LP SmartSide for high visibility elevations on Normal Hill, Lewiston Hill, and main corridors.
- HardiePlank for fire conscious areas near draws and steep slopes.
- Vinyl siding for in town homes, rentals, and budget conscious projects needing low maintenance.
- Steel siding for shops, RV bays, and light commercial buildings along US 12 and US 95.
What are the energy, curb appeal, and resale benefits in the valley?
A tight wall system cuts drafts on hill properties, cools easier in summer on the valley floor, and protects framing in river fog. Fresh vinyl, engineered wood, or fiber cement reads well in listing photos and on appraisals for homes all over Lewiston and Clarkston.
Where around Lewiston do you work?
We service Lewiston, Clarkston, Normal Hill, the Orchards, Tammany, Bryden Canyon area, and nearby rural parcels.
If you are not sure whether you need siding repair or full siding replacement, we will walk it with you and lay out both options clearly.

30+
Trust our 30+ years of successful roofing, siding, and local construction service.

New Roofs & Repairs
We're proficient in Tuff-Rib metal panel, Composite Shingle, and Snap-Lock Standing Seam roofing systems.
Home Siding Experts
We have decades of siding experience, it's one of our specialties, and we only use high-grade siding materials
48+ Pole Barns Built
We're the premier Pole Barn builders in Lewiston. Ask us about the many options of pole barn construction.
GCS - 100% Local
We serve Moscow, Troy, Genesse, Potlatch, Juliaetta, Kendrick, Lewiston, and nearby Deary area cities.
