By shopping on this website you agree that you are over 13 years old or have parental consent to make a purchase.


Merchandise prices and specifications are subject to change without notice.  Typographic, photographic and/or descriptive errors are subject to correction.  Some prices include minimum order fees, please see shipping information for more details about each manufacturer's minimum order fee.

In Store Vs. Online Pricing

Our goal is to offer the best possible prices on as well as in our Polaris Windows Branch Locations. Sometimes an online price will not match a price that is offered at your local branch. The local price may require additional handling, may not be available or may have other factors that influence the price difference from the online price. Please Note: Prices shown on are online prices only. Your local Polaris Branch may not honor online pricing found on If you wish to purchase an item at your local store, the in-store pricing will apply.

Payment Options

We accept Visa and Mastercard (credit & debit), American Express and Discover, as well as Electronic Funds Transfer (EFT) from your checking or savings account.  Please be aware that on occasions your credit card may decline not because your funds are unavailable but because your issuing bank has set daily limitations on transactions.  This is for your protection.  If this occurs it may be necessary for you to call your bank or credit card company to authorize a transaction, or we can process your payment over several days.

Shipping Information

Many products on the website qualify for Free Shipping* in the continental 48 United States. Products can be shipped UPS, FedEx, USPS, or common freight carrier, based on item and/or quantity ordered. All shipments are completed by a 3rd party shipper. Please note that certain locations may incur an additional shipping surcharge in metropolitan areas or a ferry charge for islands. These may be applicable in the states of MA, FL, MI, WA, NY, SC, NC, but are not limited to this list and are at the discretion of the carrier. To avoid this surcharge, you may request to pick your items up at the nearest freight terminal (not on the island). We will contact you as soon as possible, if there are any additional charges for your order. Polaris does not ship out of the United States at this time.

*In our efforts to offer the lowest delivered pricing on the site, some select brands have purchase minimums to qualify for Free Shipping. Minimum requirements and shipping costs will vary by manufacturer. Brands without a purchase minimum will qualify for FREE SHIPPING regardless of price or quantity.

To view Estimated Lead Times and Expedited Shipping info CLICK HERE.

Return Policy

To request to cancel an order or return a product, please send an email to You may return most items purchased from Modern Builders Supply Inc. for a partial refund within 30 days from the purchase date. The following terms will apply:

  • We cannot guarantee any cancellations. Once an order has shipped it cannot be cancelled, thus it will be treated as a return. Please contact us immediately to cancel an order
  • We do not accept exchanges of any kind
  • All returns are subject to a 20% restocking fee
  • All returns must have an RMA (Return Merchandise Authorization) number. Once you have contacted us requesting a return, we will give you a confirmation and a return address to send the product(s) to
  • Returned item(s) must be in new/resalable condition and in the original packaging
  • Returned item(s) must be received within 14 days from RMA Issue Date
  • Customers are responsible for the cost of return shipping for all returns
  • Custom orders are NOT returnable
  • Minimum Order Fees are non-refundable

With a few exceptions, we will reimburse you for the returned or cancelled items in the same way that you paid for them. Credits will be issued once a return has been approved and product(s) have been returned to the warehouse in which they came.


Modern Builders Supply makes every possible effort to make certain that you receive your order without damage, however on occasion there are unforeseen conditions out of our control that may cause damage during the shipping process.

If you receive a product that was damaged in shipping, defective, missing parts, or that is not the product you ordered, please contact us at 1-(800)-453-0349 or as soon as possible with photographic evidence so that we may arrange a replacement or credit.

Upon receiving your shipment, please inspect your materials promptly and report any damages or missing items to us immediately.

For all ground deliveries ALWAYS INSPECT YOUR SHIPMENT PROMPTLY AND REPORT ANY DAMAGED OR MISSING ITEMS TO US WITHIN TWO (2) BUSINESS DAYS! We cannot provide reimbursement or solutions of any kind if issues are not reported within two (2) business days, no exceptions.

For all LTL (freight) deliveries you must be present to sign for your shipment. ALWAYS INSPECT YOUR SHIPMENT AT DELIVERY AND REPORT ANY DAMAGED OR MISSING ITEMS WHEN SIGNING THE BILL OF LADING! We cannot file a claim on your behalf or offer reimbursement of any kind if it is not documented on the Bill of Lading, no exceptions.

Sales Tax

Why does your site charge tax in states that you do not have a branch location? 

Because we sell and deliver products outside of our branch network, we have what is called nexus in those states. Additionally, we have Economic Nexus requirements in a variety of states. Nexus requires by law, Modern Builders Supply, Inc. to collect sales taxes in those states for our our Online Store.

The following are the states that we are NOT required to collect sales tax:

  • Alaska
  • Delaware
  • Hawaii
  • Montana
  • New Hampshire
  • Oregon

If you are a tax exempt customer, please fill out the required tax exempt information form.

Any questions regarding our sales tax please contact us at

Delivery Addresses

Unfortunately, Modern Builders Supply Inc. is unable to deliver products to APO/FPO addresses.

Certain areas incur a surcharge due to remote, metro, island location, or requiring special delivery instructions. The online system will not collect this delivery surcharge during checkout. If you believe that this may occur, you may contact us to find out this information. If your shipment quote has any of the fees above, you may be contacted prior to shipment so that we may process payment to complete the order.

We will not be held accountable for any storage fees accumulated or re-delivery fees that may apply.