Hotel Information

Reserve Now! Westin Boston Seaport District 

ACI has room blocks at both the Westin Boston Seaport District (headquarter hotel) and Aloft Boston Seaport District. Both room blocks are expected to sell out early, please plan on making your reservation early to lock in the negotiated room rate. All convention events will take place at the Westin Boston Seaport District (headquarter hotel) and the Boston Convention and Exhibition Center.

ACI Hotel Blocks

Hotel Block Information - Westin Boston Seaport District (Headquarter Hotel)

The ACI hotel blocks are expected to sell out early. Reserve your hotel room online at the Westin Boston Seaport District. Reservations can also be made over the phone by calling +1.617.532.4600 and referencing the group name: American Concrete Institute.

The ACI group rates are available until October 4, 2023, subject to room availability. The $224 rate is based on a standard single or double occupancy run of house room. The room rate may increase if you select an upgraded room option. All reservations must be guaranteed with a major credit card. You may cancel your reservation up to 72 hours prior to check-in without penalty. After 72 hours, one night's room and tax will be charged.

During your stay, you may be contacted at:

The Westin Boston Seaport District, 425 Summer Street, Boston, MA 02210
Phone: +1.617.532.4600

Check in: 3:00 pm EDT | Check out: 12:00 pm EDT

You may cancel your reservation at the Westin Boston Seaport District, up to 72 hours prior to arrival without penalty. After 72 hours, one night's room and tax will be charged.

Hotel Block Information - Aloft Boston Seaport District

The ACI hotel blocks are expected to sell out early. Reserve your hotel room online at the Aloft Boston Seaport District. Reservations can also be made over the phone by calling +1.888.236.2427 and referencing the group name: American Concrete Institute.

The ACI group rates are available until October 4, 2023, subject to room availability. The $204 rate is based on a standard single or double occupancy run of house room. The room rate may increase if you select an upgraded room option. All reservations must be guaranteed with a major credit card. You may cancel your reservation up to 72 hours prior to check-in without penalty. After 72 hours, one night's room and tax will be charged to credit card on file in the reservation.

During your stay, you may be contacted at:

The Aloft Boston Seaport District, 201-403 D St, Boston, MA 02210
Phone: +1.617.530.1600

Check in: 3:00 pm EDT | Check out: 12:00 pm EDT

You may cancel your reservation at the Aloft Boston Seaport District up to 72 hours prior to arrival without penalty. After 72 hours, one night's room and tax will be charged to credit card on file in the reservation.

Reservation Problems

Please contact Carole Berrelez at carole.berrelez@concrete.org or +1.248.848.3186 if you have any difficulty making a reservation or would like to be added to the wait list for a room at ACI’s official hotel.

Hotel Piracy

Please note: Should you receive a phone call or email requesting you make your hotel reservation or upgrade your reservation through an outside party (or a party saying they represent the hotel) for a different rate, please do not comply and contact ACI Event Services at +1.248.848.3795 to report this. 

Accessible Rooms

To reserve an accessible hotel room, please call each hotel directly and reference the American Concrete Institute.

Government Rooms

ACI has a small block of government-rate rooms at The Westin Boston Seaport District. Government-rate rooms can be booked here. If you have any questions regarding ACI's government room block, please contact Carole Berrelez at carole.berrelez@concrete.org or +1.248.848.3186 for further assistance.