Shipping & Returns

Shipping Rates

National Grid Marketplace offers free shipping on orders totaling $49 or more after all rebates and promotions have applied and before sales tax. For orders totaling less than $49, a flat rate shipping charge of $5 will apply. A surcharge may apply for heavy or larger items and during peak delivery times.


General Item Returns


Eligible Time Period: 30 days from delivery date

Non-Eligible Items: opened or installed thermostats and items that are not in original condition

We want you to be satisfied with the products purchased from us, but are unable to refund products that have been installed, for which the original packaging has been destroyed, or that are otherwise not in original condition and resalable. You are responsible for returning products in a safe, unbroken condition, so please pack returns carefully. You may want to insure returns of valuable merchandise. Upon receipt a credit equal to the product purchase price will be issued to you through the same payment method you used to pay for the order. See Returns Process below.


Returns Process

You may request a return of most new, unopened items within 30 days of delivery for a full refund. AMCG will pay the return shipping costs if the return is a result of our error (you received an incorrect or damaged item, etc.).

  1. Items must be returned within 45 days of invoice to be eligible for credit.
  2. Returned items must be received by the supplier AM Conservation (AMC) in new condition and in the original packaging to be eligible for a refund
  3. AMC will send you Return Merchandise Authorization (RMA) documentation which must be placed inside the return shipment package and RMA number printed on each package in order for returned material to be received at AMC.
  4. Return shipping cost is the responsibility of the customer unless the return is a result of an error made by AMC, in which case, AMC will send you a FEDEX shipping label.



Incorrectly Shipped Orders

Eligible Time Period: Inspect your order within 2 business days from delivery date. If you received items you did not order, we will either send you a prepaid FedEx shipping label for you to return the incorrectly shipped merchandise. We will ship a new order for the correct merchandise within one business day.



Damaged Item Returns

Eligible Time Period: Inspect your order within 2 business days from delivery date. If an order has arrived damaged you should notify the supplier, AM Conservation (AMC), within 2 business days of delivery date. AMC will ship replacements at no cost. Some items, such as smart thermostats, will need to be returned to AMC prior to a replacement being sent. AMC will notify you if any of the damaged items need to be returned and will send you a prepaid FedEx shipping label to do so.



Defective Item Returns (Smart Thermostats)

If smart thermostat is deemed truly defective by the manufacturer, NOT incompatible, contact the thermostat manufacturer to discuss replacement. See Below.



Defective Google Nest:



Defective Ecobee:

Call: 1.877.932.6233



Defective Emerson Thermostats:

Call 1.888.605.7131



Defective Honeywell Thermostats:

Call 1.847.701.3038



Defective Mysa Thermostats:


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