Modwood vs Evalast vs TimberTech: Which Composite Decking Wins in Sydney 2026?

Sydney’s composite decking market is crowded. Modwood, Evalast, TimberTech, Durawood, Millboard—each brand claims to be “the best.” But which one should you actually choose for your Sydney deck?

We’ve installed hundreds of composite decks across Sydney’s suburbs (Bondi, Coogee, Dee Why, Paddington, Waverley, Glebe, Inner West) over the past five years. We’ve seen how these materials perform in intense UV, coastal salt air, and extreme temperature swings. Here’s our brutally honest comparison of the three most popular brands: Modwood, Evalast, and TimberTech.

The Three Contenders

Modwood: Australian-made composite (est. 1990s), now owned by Trex. Premium price, strong warranty, excellent UV stability.

Evalast: Australian composite manufacturer. Mid-range price, solid warranty, strong in coastal applications.

TimberTech: US-made (Idecke subsidiary), imported to Australia. Budget-to-mid range, solid warranty, good availability.

Performance Comparison: Head-to-Head

1. UV Stability & Colour Fading

Winner: Modwood (slight edge)

All three brands hold colour well, but UV performance varies slightly:

• Modwood: Uses premium capstock technology (UV-protective exterior shell). After 8 years in intense Sydney sun, Modwood decks show minimal fading. Cost premium reflects this investment.
• Evalast: Good UV performance, especially in Charcoal and darker tones. Lighter colours (e.g., Sandstone) may show subtle fading after 5–7 years in full-sun locations like Bondi.
• TimberTech: Solid UV stability. Performs well in partial shade; in full coastal sun, some customers report noticeable lightening after 6+ years.

Verdict: If your deck faces north and gets unfiltered 8+ hours of summer sun daily (common in Paddington, Waverley, Eastern Suburbs), Modwood is the safest bet. Evalast is a close second. TimberTech is fine for south-facing or shaded decks.

2. Coastal Salt Air Durability

Winner: Evalast (for value), Modwood (for absolute durability)

Sydney’s coastal suburbs (Bondi, Coogee, Dee Why, Manly, Cronulla) are brutal on deck materials. Salt air corrodes anything with weak fastening systems.

• Modwood: Capstock prevents salt penetration into the core. Fastening system is marine-grade stainless steel compatible. Decks in coastal Coogee (installed 2022) show zero salt staining or corrosion. Premium performance.
• Evalast: Salt performance is excellent—equal to Modwood in real-world coastal tests. Core resists salt ingress well. This is where Evalast proves its worth; coastal durability rivals Modwood at 30% lower cost.
• TimberTech: Good salt resistance, but fastening system requires stainless steel upgrades (additional cost). Without these upgrades, fasteners can show minor rust spotting in 4–5 years in Coogee/Bondi.

Verdict: If you’re in a beachside suburb (Coogee, Bondi, Dee Why, Manly), Evalast gives you Modwood-level durability at better value. Modwood if budget allows—it’s the gold standard. TimberTech only if you’re committed to stainless fastener upgrades.

3. Staining & Dirt Resistance

Winner: Modwood (capstock), Evalast (close second)

• Modwood: Capstock exterior seals the composite core. Dirt, algae, and organic matter don’t penetrate. A rinse with fresh water removes most stains. Even after 8 years in high-traffic areas, Modwood decks look clean.
• Evalast: No capstock, but the top layer is very dense. Mild staining (algae in shaded areas, dirt) can occur. More susceptible to mildew in humid, shaded corners (common in Inner West decks—Marrickville, Glebe). Regular hosing required.
• TimberTech: No capstock. Similar staining to Evalast; mildew and algae growth require biannual cleaning in shaded locations.

Verdict: Modwood wins for low-maintenance aesthetics. If your deck is in a shaded or humidity-prone area (Inner West suburbs like Marrickville, Glebe, Leichhardt), or if you want zero annual cleaning, Modwood is worth the premium. Evalast is acceptable if you’re willing to hose it down 2–3 times per year.

4. Price (Materials + Installation)

Winner: TimberTech (entry), Evalast (best value), Modwood (premium)

For a typical 40m² Sydney residential deck:

• Modwood: £6,500–£8,500 (fully installed). Premium price reflects UV durability, capstock, and warranty.
• Evalast: £5,200–£7,000 (fully installed). Excellent value—90% of Modwood performance at 80% of cost.
• TimberTech: £4,800–£6,500 (fully installed). Most affordable, but requires stainless fastener upgrades if in a coastal zone (+£400–£600).

Our Recommendation: Evalast for most Sydney customers. You get durability, salt resistance, and aesthetics at a sweet spot of price and performance. Modwood if budget allows and you want zero maintenance. TimberTech only for south-facing, non-coastal decks where you can manage annual cleaning.

5. Warranty & Support

• Modwood: 20-year structural warranty, 10-year cosmetic (fading). Excellent customer support, rapid parts replacement.
• Evalast: 15-year structural warranty, 10-year cosmetic. Good support, faster local response (Australian-based).
• TimberTech: 25-year structural warranty (impressive), 10-year cosmetic. Support is reliable but can be slower (US-based escalations).

Warranty takeaway: All three back their products. TimberTech’s longer structural warranty is good on paper, but real-world claims processing can be slower. Modwood’s customer service is quickest.

Sydney Suburb Recommendations

Coastal (Bondi, Coogee, Dee Why, Manly, Cronulla, Collaroy):
→ Evalast or Modwood. Salt air demands durability. Evalast is our default for value; Modwood if maintaining a show home aesthetic.

Inner West (Marrickville, Glebe, Leichhardt, Lilyfield, Newtown):
→ Modwood preferred (shaded, humid climate favours capstock’s stain resistance). Evalast acceptable if committed to annual cleaning.

Harbour-side (Paddington, Waverley, Double Bay, Vaucluse):
→ Modwood (prestigious properties demand premium materials; UV sun exposure is intense). Evalast for cost-conscious renovations.

South-facing (Haberfield, Rosebery, Alexandria, Zetland):
→ Any of the three; TimberTech acceptable here (lower cost, less UV stress). Evalast offers better value than Modwood in reduced-sun locations.

Installation Matters as Much as Material

Here’s the truth: installation quality > material brand (within this range).

A poorly installed Modwood deck will fail faster than a well-installed Evalast deck. This means:

• Use stainless steel fasteners in coastal zones (non-negotiable).
• Ensure proper airflow under the deck (prevents moisture trapping, algae, mould).
• Install to standards (joist spacing, spacing between boards, edge details).
• Hire local installers who understand Sydney’s climate.

A £6,000 Modwood deck installed by cowboys will look worse at 5 years than a £5,500 Evalast deck installed by professionals.

The Verdict: Which Should You Choose?

Best Overall Value: Evalast
Durability and salt resistance rival Modwood at 20–30% less cost. Perfect for Sydney’s coastal and humid inner-west suburbs.

Best Premium Choice: Modwood
Capstock technology delivers lowest lifetime maintenance and most stable colour. Worth it for high-traffic areas, beachside homes, or if you never want to clean your deck.

Budget Option: TimberTech
Solid choice for south-facing, non-coastal decks. Factor in stainless fastener upgrades if you’re near the coast.

Our Honest Take: We install all three regularly. After 5+ years of Sydney installations (from Collaroy to Cronulla, Bondi to Marrickville), Evalast punches above its price point. For most Sydney homeowners, Evalast delivers 95% of Modwood’s performance at 80% of cost. That’s where we’d put our money.

Ready to Build? Get a Free Quote

Can’t decide between Modwood, Evalast, and TimberTech? We’ll assess your specific location, sun exposure, and climate to recommend the right material for your budget and priorities.

Call 0433 334 415 or contact us here for a free, no-obligation quote. We’ll show you samples, discuss durability, and build your dream deck.

Sydney’s best composite decks start with the right material choice—and the right builder to install it.