Jay Jay Building Supplies

Jay Jay Building Supplies Jay Jay Building Supplies, providing Sydney West's highest -quality building products to since 1985.

PRODUCT OF THE MONTH – ARCHITRAVESLooking for the perfect finishing touch for your renovation or build?This month, selec...
19/06/2026

PRODUCT OF THE MONTH – ARCHITRAVES

Looking for the perfect finishing touch for your renovation or build?

This month, selected stocked architrave profiles are available at promotional pricing.

Quality profiles ready to take home today
Ideal for new builds and renovations
Professional finish around doors and windows
No waiting on special orders

Visit us in-store to view the stocked range and take advantage of this month's offer from $9.13+GST / length.

Applies to selected stocked architrave profiles only. While stocks last- and don't forget to mention where you saw the promo

Thinking about installing a new skylight? Enter for a chance to WIN a skylight & installation worth up to $15,000 from ....
16/06/2026

Thinking about installing a new skylight? Enter for a chance to WIN a skylight & installation worth up to $15,000 from . Ends 6 July, 2026 - don't miss out!

Must be 18+ and a homeowner to qualify - for full T&Cs, visit velux.com.au.

JUNE Product of the Month - ARCHITRAVES. 🏠Style starts with the finer details. Did You Know?Architraves do more than fra...
12/06/2026

JUNE Product of the Month - ARCHITRAVES.

🏠Style starts with the finer details.

Did You Know?

Architraves do more than frame doors and windows—they help create a seamless transition between walls, doors, and trims, giving every room a polished finish.

This month we're putting the spotlight on our range of quality architraves. Drop by and see what great stocked specials we have. Starting from $9.13+GST/length - but don't forget to mention where you saw this promo to grab these special deals... 😉

JUNE PROMO OF THE MONTH - ARCHITRAVEThis month we're featuring premium Hume Timber Architraves at terrific prices!Archit...
01/06/2026

JUNE PROMO OF THE MONTH - ARCHITRAVE

This month we're featuring premium Hume Timber Architraves at terrific prices!

Architraves are the finishing touch that frame your doors and windows, adding style, character, and a professional finish to any home or renovation project.

Whether you're building, renovating, or replacing existing trims, now is the perfect time to upgrade with trusted Hume quality.

🧢 BONUS: Receive a FREE cap with your purchase during June!

Visit us in-store and speak with our team about the right profile for your project.

🎉 Double Celebration at Jay Jay’s! 🎉Tomorrow we’re celebrating Tony… and it’s a big one! It’s his birthday 🚛 AND he’s be...
01/05/2026

🎉 Double Celebration at Jay Jay’s! 🎉

Tomorrow we’re celebrating Tony… and it’s a big one!
It’s his birthday 🚛 AND he’s been part of the Jay Jay Building Supplies team for 10 years

If you’ve had a delivery from us, chances are you’ve met Tony, always reliable, always friendly, and always getting the job done 💪

Tony, we truly appreciate everything you do.
You’re a big part of what makes Jay Jay’s what it is.

👉 Help us wish him a Happy Birthday & 10 Years! in the comments 🎉






Insulation isn’t just about what you use — it’s about choosing the right product for the job.We go above and beyond by:✔...
13/04/2026

Insulation isn’t just about what you use — it’s about choosing the right product for the job.

We go above and beyond by:

✔️ Supplying trusted, high-performance insulation products
✔️ Helping you select the correct R-values and specifications
✔️ Providing accurate quantities to reduce waste
✔️ Ensuring reliable supply and turnaround times
✔️ Supporting builders, tradies, and homeowners with expert advice

The right materials make all the difference when it comes to long-term comfort and energy efficiency.

We don’t install — we specialise in making sure you have the right insulation products, exactly when you need them at the right price. For April we have a great promo- use Codeword BEATTHECHILL for these amzing prices:
❄ R2.5HD- from $8.16/sqm
❄ R3.5 - from $6.70/sqm

Feeling the chill already? We’re here to help.Getting your insulation sorted before winter hits means:✅ Lower power bill...
07/04/2026

Feeling the chill already? We’re here to help.

Getting your insulation sorted before winter hits means:
✅ Lower power bills
✅ A warmer, healthier home
✅ Less strain on your heating system
✅ Peace of mind all season long

Whether you’re building new, renovating, or upgrading existing insulation, our team can guide you through the best solution for your h
This March we have some amazing prices- don't forget to use Codeword: BEATHECHILL
❄ R2.5HD- from $8.16/sqm
❄ R3.5 - from $6.70/sqm

No stress. No guesswork. Just honest advice and quality results.

Send us a message or give us a call — let’s get your home winter-ready.

Good insulation doesn’t just keep you warm — it keeps your energy costs under control all winter long.Before temperature...
01/04/2026

Good insulation doesn’t just keep you warm — it keeps your energy costs under control all winter long.

Before temperatures really drop, now is the perfect time to check:
✔️ Roof/ceiling insulation
✔️ Wall insulation
✔️ Underfloor insulation
✔️ Draft seals

For the month of March we have some amazing prices- don't forget to use Codeword: BEATHECHILL
❄ R2.5HD- from $8.16/sqm
❄ R3.5 - from $6.70/sqm

A warmer home starts from the inside out.

Great homes start with the right materials.As cooler weather approaches, choosing high-quality insulation is one of the ...
27/03/2026

Great homes start with the right materials.

As cooler weather approaches, choosing high-quality insulation is one of the smartest decisions you can make for long-term comfort and energy efficiency.

We proudly supply trusted insulation products for:
☑️ New builds
☑️ Renovations
☑️ Builders & contractors
☑️ Homeowners tackling upgrades

We work alongside builders, tradies, and homeowners to ensure you get the right product, the right specs, and the right quantities — on time and ready for your project. Plus, for the month of March we have some amazing prices- don't forget to use Codeword: BEATHECHILL
❄ R2.5HD- from $8.16/sqm
❄ R3.5 - from $6.70/sqm

You build it. We’ll supply what keeps it warm.

Let’s build something great together.

Proud to support builders, chippies, claddersand all-round legends across Western Sydney & the Blue Mountains.This week ...
25/03/2026

Proud to support builders, chippies, cladders
and all-round legends across Western Sydney & the Blue Mountains.

This week wraps up our Fibre Cement Product of the Month. and some FANTASTIC pricing specials to go with it.
*Durasheet 4.5mm - $10.09/sqm+GST
*Duraplank 230 Smooth- $19.28ea +GST

From durable cladding to reliable sheet products built for tough Aussie conditions, fibre cement continues to be a go-to choice on site.

But it’s not just about the products. It’s about having a supplier you can count on when the job’s on the line.

Good stock. Trusted brands. Service that backs local tradies.

Need a supplier who backs your business like it’s their own?

Let’s build something great – together.

Address

Penrith, NSW

Opening Hours

Monday 7am - 5pm
Tuesday 7am - 5pm
Wednesday 7am - 5pm
Thursday 7am - 5pm
Friday 7am - 5pm

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