MI Homesiding & Roofing
Protect your deck from Tennessee humidity, rain, and UV — with Sherwin-Williams SuperDeck and premium sealants built to last.
Outdoor wood takes the worst of Knoxville’s rain, humidity, and UV exposure.
Without proper staining and sealing, deck boards gray, crack, and rot fast — usually within 3-5 years.
Good staining is 30% product, 70% preparation. Skip prep and even the best stain fails.
For deck repair or replacement, see our deck contractor page.
Deck Staining Services
🪵 Deck Staining — Semi-transparent, semi-solid, or solid color
💧 Deck Sealing — Clear waterproof protection
🧼 Deck Cleaning & Prep — Pressure wash + brightener
🔧 Deck Sanding — Remove old stain, prep bare wood
🎨 Color Consultation — Match your home’s exterior
🪑 Fence Staining — Coordinated with deck projects
🔍 Structural Inspection — Check for soft boards before staining
Common Deck Problems in Knoxville
Grayed wood — Untreated deck exposed to UV loses color and starts drying out.
Cracked boards — Constant wet/dry cycles cause splitting.
Mildew and mold — Shaded decks in humidity develop black spots.
Peeling old stain — Previous solid stain that wasn’t prepped properly.
Soft or rotted boards — Water damage under stain. If found, see our deck repair page before restaining.
Sherwin-Williams SuperDeck
We are a Sherwin-Williams Certified Contractor — we use Sherwin-Williams SuperDeck line exclusively for deck staining:
- 🪵 SuperDeck Semi-Transparent Stain — Shows wood grain, natural look
- 🎨 SuperDeck Solid Color Stain — Full color coverage, hides wood
- 💧 SuperDeck Waterproofing Sealer — Clear protection
- 🧼 SuperDeck Deck Wash & Brightener — Prep before staining
Built for Tennessee weather — rain, humidity, and UV.
Our Deck Staining Process
1. Structural inspection — Check every board for soft spots, rot, and loose fasteners.
2. Repair first — Any damaged boards replaced before staining (see deck repair).
3. Pressure wash — Remove dirt, mildew, and failed stain.
4. Wood brightener — Restore natural wood color.
5. Sanding — Smooth surface, remove raised grain.
6. Stain application — Sherwin-Williams SuperDeck, 2 coats for durability.
7. Final walkthrough — Owner-led inspection.
Stain Options: Which One is Right?
| Stain Type | Look | Lasts | Best For |
|---|---|---|---|
| 🪵 Semi-Transparent | Natural wood grain | 2-3 years | New/newer decks |
| 🎨 Semi-Solid | Mostly opaque, some grain | 3-5 years | Weathered decks |
| 🎨 Solid Color | Full color, hides wood | 5-7 years | Older decks |
| 💧 Clear Sealer | Natural, no color | 1-2 years | Brand new decks |
Semi-transparent and solid are the most popular in East Tennessee.
Deck Staining Cost in Knoxville, TN
Pricing depends on deck size, condition, prep work needed, and stain type.
| Deck Staining Service | Typical Range |
|---|---|
| 🪵 Small Deck (up to 200 sq ft) | $800 – $1,400 |
| 🏠 Medium Deck (200-400 sq ft) | $1,400 – $2,200 |
| 🎨 Large Deck (400+ sq ft) | $2,200 – $3,500 |
| 🧼 Deck Cleaning + Prep | $200 – $500 |
| 🔧 Board Replacement (per board) | $30 – $80 |
| 🔍 Technical Assessment | $350 (credited to project) |
For decks with rotted boards or structural concerns, the $350 Technical Assessment is credited back if you move forward.
Why Cheap Deck Staining Fails
Applying stain to a dirty deck = failure in 6 months.
Skipping wood brightener = uneven color and blotchy finish.
Using cheap deck stain = fades in 1 season under Tennessee sun.
Applying stain to wet wood = peeling and adhesion problems.
Not addressing rot before staining = bigger repairs later.
Hidden Damage Policy
If rotted boards, damaged joists, or structural issues are discovered during deck prep, we stop and document with photos.
We provide a written Change Order before staining continues.
We never stain over rot or damaged wood.
Why Knoxville Homeowners Choose MI
Sherwin-Williams Certified. Owner-led inspections. Root-cause repairs before staining.
We are a deck, siding, and painting contractor — that means we handle repair and finish with the same team.
Licensed GC · Workers’ Comp Insured · BBB Accredited Business · Sherwin-Williams Certified · GAF Certified · Family Operated · Bilingual English/Spanish.
Call for a free deck staining estimate: (865) 243-1243
FAQs – Deck Staining in Knoxville, TN
❓ How often should a deck be restained?
Semi-transparent stains: every 2-3 years. Semi-solid: every 3-5 years. Solid color: every 5-7 years. Tennessee sun and humidity can shorten these on south-facing decks.
❓ Are you Sherwin-Williams Certified?
Yes. We use Sherwin-Williams SuperDeck stain, sealer, and deck wash exclusively. We are a Sherwin-Williams Certified Contractor.
❓ Can you stain a deck that has old peeling stain?
Yes, but the old stain must be fully removed first through pressure washing and sanding. We handle full deck prep before applying new stain.
❓ What if you find rotted boards during prep?
We stop, document with photos, and provide a written Change Order. Damaged boards are replaced before staining continues. See our deck repair page.
❓ Do you offer free deck staining estimates?
Yes. On-site estimates are free. For decks with visible damage or structural concerns, we offer a $350 Technical Assessment that is credited back if you move forward.
❓ Do you stain fences too?
Yes. Fence staining is often coordinated with deck projects using the same Sherwin-Williams SuperDeck product line.
❓ Are you BBB Accredited?
Yes. MI Homesiding & Roofing is BBB Accredited, Licensed GC in Tennessee, and fully insured.
Ready to Get Started?
If your deck is graying, cracking, or fading, now is the time to act before rot sets in.
Call for a free deck staining estimate: (865) 243-1243
Licensed GC · BBB Accredited · Sherwin-Williams Certified · GAF Certified · Insured · Family Operated · Bilingual Service
5-Star Rated on Google · Serving Knoxville & East Tennessee