Second Source Supply

Second Source Supply At Second Source Supply, we help homeowners and contractors build smarter—with eco-friendly, high-performance materials that last. Based in Wisconsin.

Helping builders everywhere.

When lease-end turnover season hits or a unit needs a full refresh before the next tenant moves in, every day on the tur...
08/06/2026

When lease-end turnover season hits or a unit needs a full refresh before the next tenant moves in, every day on the turn schedule costs money in vacant loss.
Our partner BYCO Inc. specializes in high-efficiency unit turnovers and interior surface refreshes for multi-family communities. Instead of coordinating multiple subs during a tight turn window, you get one dedicated point of contact for trash outs, drywall repairs, paint, tile touch-ups, and LVT or floor replacements.

BYCO's 73 years in business. 7,200+ completed projects has been built on reliability.

The FAST Multi-Family Advantage:
• Rapid Unit Assessments: On-site estimate and turn-schedule commitment within 48 hours.
• Surge Capacity: Extra horsepower to absorb high-volume end-of-month lease rolls without missing lease start dates.
• Turnkey & Resident-Ready: Clean, durable finish work that passes final move-in inspections on the first walk—keeping common areas clean and neighboring tenants happy.
Facing a tight turnover schedule or need backup on upcoming unit upgrades? Call 262-894-6995 to get a crew scheduled for a site walk this week.

Check out our latest creation for Happy Ridge Farm! Our passion is giving a second life to items that might otherwise b...
07/16/2026

Check out our latest creation for Happy Ridge Farm! Our passion is giving a second life to items that might otherwise be discarded or in this case turned into firewood. We think dreamy natural playground chairs are just better!
With a little creativity, anything is possible. We've got a full inventory of solid core wood slab doors, live edge maple and walnut, and reclaimed dimensional lumber just waiting for the right idea.
Have an idea but not sure how to make happen? We can help!

Second Source Supply is in the final days of our Oconomowoc school decommissioning Cash & Carry event with massive disco...
07/15/2026

Second Source Supply is in the final days of our Oconomowoc school decommissioning Cash & Carry event with massive discounts on school and office furniture. E
verything is priced to move—first come, first served!
Available Items & Pricing:
Stackable Chairs: $5 each
Office Chairs: $5 each
Cubbies: $15
Desks: $5 each
Whiteboards: $10 each
Solid Core Door Slabs: $45
Smartboards: $100 each
Educational Maps: $100 each
Folding Cafeteria Tables: $100 each

Important Details:
Time and Location: Appointment must be scheduled by phone. Contact number is located in photos
Format: Cash & Carry—please be prepared to load and transport your own items.
Terms: Items are sold as-is. All sales are final.

Don't miss this chance to upgrade your home office, classroom, or small business workspace for a fraction of the cost!

Ready to get your project across the finish line? 🏁Don’t let flooring hold up your timeline. Whether you’re finishing a ...
07/09/2026

Ready to get your project across the finish line? 🏁

Don’t let flooring hold up your timeline. Whether you’re finishing a commercial space or refreshing a residential room, Second Source Supply has the inventory you need to wrap things up now.

We have a massive selection of high-quality flooring in stock and ready for next-day installation:

-Carpet Tile: Durable, easy to replace, and perfect for high-traffic zones.

-LVT (Luxury Vinyl Tile): The perfect blend of style, water resistance, and longevity.

-Ceramic Tile: Classic durability for kitchens, baths, and entryways.

Stop by the shop, browse our current stock, and pick out the material that fits your design—then get it on-site and installed by tomorrow.

📍 Visit us today to lock in your materials!
📞 Have questions about stock levels? Give us a call at 414-550-8095.

A long-abandoned restaurant in downtown Mayville has been transformed into real, affordable apartment living. Rezoning,...
07/09/2026

A long-abandoned restaurant in downtown Mayville has been
transformed into real, affordable apartment living.

Rezoning, repurposing, and restoring became the driving theme
behind the revitalization of the former BackStreet Café.

The conversion brought new life to the space, incorporating showroom kitchens, vanities, and cabinetry into the five newly created apartments - blending sustainability, practicality, and renewed purpose into the heart of downtown Mayville.

More than a tag line or idea, this is proof of concept - the tangible reality that Second Source Supply made possible.

Ready to upgrade your kitchen? 🥘✨We just listed a stunning Custom Built Hickory Kitchen set at Second Source Supply! If ...
07/02/2026

Ready to upgrade your kitchen? 🥘✨

We just listed a stunning Custom Built Hickory Kitchen set at Second Source Supply! If you’re looking to add warmth and character to your home, this is the perfect project for you.

This complete setup includes all the cabinetry and appliances shown—a high-quality, durable, and beautiful option for your next renovation.

📍 View the details and see more photos here: https://www.secondsourcesupply.com/index.php?page=search&action=detail&cat=cabinets_counters&row=2259

Questions? Send us a message or give us a call at (414) 550-8095.

Add Timeless Strength & Character to Your Next Project 🪵Whether you are looking for structural integrity or raw, reclaim...
06/29/2026

Add Timeless Strength & Character to Your Next Project 🪵
Whether you are looking for structural integrity or raw, reclaimed beauty, our latest shipment at Second Source Supply has you covered. We have just stocked a fresh inventory of high-quality, reclaimed dimensional lumber, perfect for both heavy-duty framing and those statement-making finished spaces.

Why choose our reclaimed lumber?
These aren't just boards; they are pieces of history. Reclaimed timber offers superior stability compared to modern kiln-dried options, along with a depth of grain and patina that adds instant character to any design.

Now In Stock:
⚒️2x8
⚒️2x10
⚒️2x12 ... and more!

Versatile enough for any build:

Structural Projects: Ideal for rafters, joists, or framing that requires both strength and a unique aesthetic.

Finished Areas: Perfect for exposed beams, custom open shelving, farmhouse tables, or rustic ceiling accents.

These pieces move quickly!

📩 Send us a message or comment below with your dimensions if you’re looking for a specific quote or need help estimating quantities for your project.

🛠️Need reliable ISO roofing insulation? We’ve got it in stock.🛠️Maximize thermal efficiency and protect your property wi...
06/26/2026

🛠️Need reliable ISO roofing insulation? We’ve got it in stock.🛠️

Maximize thermal efficiency and protect your property with quality materials from Second Source Supply. Perfect for commercial roofing projects where performance meets value.

Check out our current inventory here: www.secondsourcesupply.com

Elevate Your Landscape Projects with Timeless Character!Are you looking to add a touch of history and unmatched durabili...
06/17/2026

Elevate Your Landscape Projects with Timeless Character!
Are you looking to add a touch of history and unmatched durability to your next hardscaping design? We have an extensive supply of reclaimed Bedford Stone architectural caps, and they are ready to transform your clients' outdoor spaces.

These aren't just landscaping stones—they are pieces of architectural heritage, perfectly weathered and ideal for creating stunning retaining walls, garden borders, entry pillars, or custom water features.

Why choose our Reclaimed Bedford Stone?

Unrivaled Aesthetic: Nothing matches the natural texture and historical patina of authentic, reclaimed stone.

Superior Durability: Proven to stand the test of time, these caps offer a premium, high-end finish that synthetic alternatives simply can't replicate.

Large Quantity Available: We currently have 60 tons in stock, making these perfect for large-scale commercial installs or extensive residential estate projects.

Make your next build stand out from the competition with materials that tell a story.

Ask about our rock bottom pricing on 3x4 solid oak fence posts, landscaping gravel and more! Don't let your competitors claim all the profits contact us today and for pricing that puts you in the driver's seat.

🔗 View the full inventory and specs here: www.secondsourcesupply.com

Ready to start your order?
Send us a message directly or call 414-550-8095 to discuss pricing and shipping options for your job site. Let’s build something incredible together!

🌡️☀️Beat the Heat Today! ☀️🌡️The first real scorcher of the summer is here! Don’t wait for the mid-season rush—keep your...
05/26/2026

🌡️☀️Beat the Heat Today! ☀️🌡️

The first real scorcher of the summer is here! Don’t wait for the mid-season rush—keep your home perfectly chilled with our 15" x 20" 10,000 BTU Air Conditioners - $60 each!

🌡️Powerful Cooling: Perfect for living rooms, large bedrooms, or apartments (up to 450 sq. ft.).
🌡️Compact Fit: Just 15" x 20" to easily fit standard windows.
🌡️Unbeatable Value: Get high-quality cooling at amazing Second Source prices.

Beat the heatwave before it beats you! Stop by or grab yours online before they're gone.

🛒 Shop now: https://www.secondsourcesupply.com/index.php?page=search&cat=Other

Address

P. O. Box 148
Mayville, WI
53050

Telephone

+14145508095

Website

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