Dates

    10–12 Mar 2027

    City / country

    National Harbor, United States

    Venue

    Gaylord National Harbor

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    Event overview

    Overview

    The ACCA Conference & Expo is designed for HVACR business leaders to enhance their operations and leadership skills. Taking place from March 10-12, 2027, at the Gaylord National Resort in National Harbor, MD, the event will feature educational sessions, networking opportunities, and an expo hall showcasing over 100 exhibitors.

    Attendees will gain insights into industry trends, workforce challenges, and business growth strategies. ACCA Conference & Expo takes place in National Harbor, United.

    TL;DR

    1. 1Dates and Venue: ACCA Conference & Expo takes place March 10-12, 2027 at Gaylord National Resort, National Harbor, MD.
    2. 2Scale and Focus: This event gathers over 1,000 HVACR professionals, focusing on business growth and operational efficiency.
    3. 3Organiser: Hosted by the Air Conditioning Contractors of America (ACCA), details available at accaconference.com.
    4. 4Buyer Authority: Attendees include business owners, service managers, and general managers from the HVACR sector.
    5. 5Entry: Registration is available online with various pass options for contractors and industry professionals.

    Why visit

    Attending the ACCA Conference & Expo provides HVACR professionals with the opportunity to network with peers, learn from industry experts, and explore innovative solutions. Participants can attend educational sessions tailored to their roles, ensuring they gain actionable insights to implement in their businesses. The expo hall will feature over 100 exhibitors, allowing attendees to compare products and services directly with manufacturers and suppliers.

    Why exhibit

    Exhibiting at the ACCA Conference & Expo allows companies to connect with a targeted audience of HVACR professionals, including business owners and decision-makers. With over 85% of attendees being business owners, exhibitors can showcase their products and services to key industry players, fostering valuable relationships and potential sales opportunities. The event offers dedicated time for exhibitors to engage with attendees, maximizing visibility and impact.

    Attendees, exhibitors & solutions

    Who this event is for

    Visitor profile

    Typical attendee groups you can expect to meet.

    HVACR contracting business owners and principals deciding on equipment lines, pricing models and crew training
    General managers and operations managers from residential service and replacement companies
    Commercial and industrial HVAC/refrigeration contractors working on plan-and-spec and service portfolios
    Service and installation managers responsible for technician productivity, tools and refrigerant compliance
    Indoor air quality and home-performance specialists selling filtration, ventilation and humidity control
    Plumbing, electrical and building-services contractors adding heat pump and electrification work
    Purchasing leads and manufacturer representatives sourcing equipment, parts, controls, and field-service software
    Franchise and multi-branch contracting groups comparing supplier programmes and dealer terms

    Exhibitor profile

    Main supplier and exhibitor segments present at the show.

    HVAC equipment manufacturers showing heat pumps, condensing units, furnaces, air handlers and packaged rooftop systems
    Refrigerant and A2L transition suppliers offering cylinders, recovery machines, leak detection and compliance training
    Controls and thermostat brands with connected home platforms, zoning and building automation lines
    Indoor air quality vendors selling filtration, UV, ventilation, dehumidification and humidity control products
    Field-service management, estimating and dispatch software providers targeting contractor back offices
    Sheet metal, ducting, fittings and air distribution manufacturers
    Tool and test instrument companies (manifolds, gauges, combustion analysers, airflow meters)
    Distributors, buying groups, warranty providers and contractor financing companies recruiting dealer networks
    Training providers, certification bodies and trade media serving HVACR contracting businesses

    Product categories

    Key solution areas showcased across the event.

    Heat pumps, including cold-climate and ductless mini-split systems
    Air conditioners, furnaces, air handlers and packaged rooftop units
    A2L refrigerant-compatible equipment, recovery machines and leak detection tools
    Duct design, sheet metal, flexible ducting and air distribution components
    Indoor air quality: filtration, ventilation, UV treatment and dehumidification
    Controls, thermostats, zoning and connected-home monitoring platforms
    Field-service management, estimating, dispatch and invoicing software
    Refrigeration equipment and components for commercial contractors
    Tools and test instruments: manifolds, gauges, combustion analysers, airflow meters
    Dealer programmes, financing, warranties and contractor business services
    Training, certification and technical education resources for technicians

    Location & Facilities

    Venue

    Gaylord National Harbor

    201 Waterfront St, Oxon Hill, MD 20745

    Facilities

    Parking

    Gaylord National Harbor in National Harbor typically provides on-site or adjacent visitor parking during major trade fairs; confirm daily rates, payment methods and hall access on the organiser or venue website before travel.

    Food options

    On-site catering

    On-site dining

    Parking: Gaylord National Harbor in National Harbor typically provides on-site or adjacent visitor parking during major trade fairs; confirm daily rates, payment methods and hall access on the organiser or venue website before travel.

    Gate: Follow organiser signage to the main visitor entrance at Gaylord National Harbor for badge collection; allow extra time for security screening during peak morning arrival.

    Attend

    Entry & tickets

    • Gold Member

      859
    • Silver Member

      986
    • Bronze Member

      1099
    • Non-Member Contractor

      1239
    Register

    Who runs the show

    Organisers

    Air Conditioning Contractors of America (ACCA)

    Intelligence

    Market context

    Key market insights, trends, news and related events to help you understand the bigger picture.

    National Harbor, United States

    Why it matters

    Attending ACCA Conference & Expo on 2027-03-10 to 2027-03-12 in National Harbor lets buyers and specifiers benchmark suppliers, see live demonstrations, and compress months of vendor meetings into one focused trade visit — worthwhile when your category roadmap aligns with the official exhibitor profile.

    Industry trends

    Key trends shaping this market and its wider industry.

    01

    Digital buyer journeys

    What digital buyer journeys means for buyers and exhibitors in this sector.

    02

    Sustainability in procurement

    What sustainability in procurement means for buyers and exhibitors in this sector.

    03

    Automation and labour efficiency

    What automation and labour efficiency means for buyers and exhibitors in this sector.

    04

    Regional supply-chain resilience

    What regional supply-chain resilience means for buyers and exhibitors in this sector.

    05

    Hybrid engagement models

    What hybrid engagement models means for buyers and exhibitors in this sector.

    Plan your trip

    Travel & logistics

    Local currency · USD

    Arrival airports

    Choose from the following airports, with convenient access to the event and venue.

    IAD

    Washington Dulles International Airport

    More long-haul and international connections than DCA but a substantially longer transfer; allow extra time on arrival day

    TBA

    to venue

    Approx. 45-65 minutes by car depending on the Beltway and I-495 traffic

    by car

    BWI

    Baltimore/Washington International Thurgood Marshall Airport

    Useful for domestic carriers with cheaper fares; the road transfer is longer and traffic-sensitive, so avoid tight same-day arrival before the opening session

    TBA

    to venue

    Approx. 45-60 minutes by car via the Baltimore-Washington Parkway and I-495

    by car

    Hotel tiers

    A range of accommodation options near the venue and across key areas.

    3-star
    National Harbor / Alexandria

    Hyatt Place National Harbor (3-star, guest rating 4.5, eco-certified; breakfast and parking extra).

    3-star
    Alexandria Old Town Area South

    Hampton Inn & Suites Alexandria Old Town Area South (3-star, guest rating 4.1; free breakfast and Wi-Fi, outdoor pool, parking extra).

    4-star
    National Harbor (on-site at venue)

    Gaylord National Resort & Convention Center (4-star, guest rating 4.5; indoor pool, hot tub, spa, fitness center; breakfast and parking extra).

    3-star
    National Harbor, Washington DC area

    AC Hotel National Harbor Washington, DC Area (3-star; breakfast and parking extra, fitness center, bar and restaurant).

    4-star
    National Harbor waterfront

    The Westin Washington National Harbor (4-star; breakfast and parking extra, fitness center, bar and restaurant).

    3-star
    National Harbor

    Club Wyndham National Harbor (3-star, guest rating 4.5; pool, hot tub, fitness center, kitchen units).

    Local transport

    Get around the city with these convenient transport options.

    Metrorail

    Estimated costApprox. USD 2.25-6.75 per single journey depending on distance and peak/off-peak
    Best forAlexandria and Washington DC stations toward southern lines, then transfer to a National Harbor bus or ride-share

    National Harbor has no Metrorail station; the rail leg is only part of the trip. Fares are approximate, confirm live WMATA fares before travel.

    Local bus

    Estimated costApprox. USD 2.25-2.50 per single ride
    Best forMetrobus routes linking National Harbor with nearby Metrorail stations and Alexandria

    Cheapest option but slower and schedule-dependent; check current route timings for the conference dates.

    Ride-share or taxi

    Estimated costApprox. USD 8.00-15.00 per short trip within National Harbor
    Best forNational Harbor hotels to Gaylord National Resort & Convention Center

    Short hops inside National Harbor; walking is often quicker along the waterfront. Approximate fares, confirm in-app pricing.

    Ride-share or taxi

    Estimated costApprox. USD 25.00-45.00 per one-way trip
    Best forRonald Reagan Washington National Airport (DCA) to Gaylord National Harbor

    The standard airport transfer for the venue; higher end applies in rush hour or surge. Approximate, confirm live pricing.

    Ride-share or taxi

    Estimated costApprox. USD 60.00-95.00 per one-way trip
    Best forWashington Dulles International Airport (IAD) to Gaylord National Harbor

    Long transfer across the region; allow 45-65 minutes and confirm the fare band before booking.

    Water taxi

    Estimated costApprox. USD 15.00-25.00 per one-way adult fare
    Best forNational Harbor waterfront to Alexandria and Georgetown

    Seasonal Potomac water taxi service; a scenic alternative for free time rather than a practical conference commute. Confirm the operating season and schedule.

    On-site parking

    Estimated costApprox. USD 30.00-50.00 per day for self-parking
    Best forGaylord National Resort & Convention Center self-park or valet

    Resort parking rates change seasonally and valet is higher; confirm the current daily rate when you book your room.

    Airport shuttle or shared van

    Estimated costApprox. USD 20.00-60.00 per person depending on airport and shared versus private service
    Best forDCA, IAD and BWI to National Harbor hotels

    Shared-ride shuttles are less frequent than ride-share; pre-book if arriving late. Approximate, confirm operator pricing.

    Weather

    March in National Harbor and the Washington DC area is early spring: daytime highs typically near 12-14 C (53-58 F), overnight lows near 2-5 C (35-41 F), with a rain or shower day roughly every third day and gusty wind off the Potomac. Snow is possible early in the month but rarely disruptive for long. Indoor sessions keep the conference comfortable, but the walk between the Gaylord and neighbouring National Harbor hotels can be cold and windy in the morning.

    Plan for the climate

    Check temperatures and pack accordingly

    Venue connectivity

    Confirm mobile roaming or a local SIM for business visitors to the United States.

    Ride-hailing

    Taxis

    Public transit

    Car rentals

    Cultural notes

    Useful information to help you have a smooth and respectful visit.

    Business dress

    Business casual is standard for HVAC contractor conferences: collared shirts, sweaters or blazers for sessions, and comfortable shoes for the Expo Hall and the walk between hotels. No tie is required.

    Tipping and payment

    US tipping norms apply: 18-20 percent in sit-down restaurants, a dollar or two per drink at the bar, and a few dollars for hotel housekeeping. Cards are accepted almost everywhere in National Harbor and Alexandria.

    Getting around

    National Harbor is a self-contained waterfront district with shops and restaurants around the Gaylord; Washington DC and Old Town Alexandria are a 20 to 40 minute drive away. Build transfers into your schedule rather than assuming a quick walk or train.

    Local business culture

    The DC region runs on federal-contractor and association schedules, so weekday traffic peaks early and late. Sessions start on time and exhibitors expect firm meeting slots, so confirm appointments in advance rather than dropping by.

    Weather and packing

    March swings between mild afternoons and cold, windy mornings. Bring a packable waterproof layer and a warm mid-layer for the waterfront, plus an umbrella for the walk between the conference centre and outlying hotels.

    Practical guides

    Visitor & Exhibitor Essentials

    Everything needed to arrive prepared, navigate the event, and make the visit productive.

    Flights

    Destination: IAD

    Compare flights to the nearest international gateway serving National Harbor; confirm ground transport on the organiser site.

    Transport

    Get to the venue and around the city with these options.

    Airport → venue: Primary gateways: Washington Dulles International Airport (IAD): Approx. 45-65 minutes by car depending on the Beltway and I-495 traffic; Baltimore/Washington International Thurgood Marshall Airport (BWI): Approx. 45-60 minutes by car via the Baltimore-Washington Parkway and I-495. Allow road or rail time to Gaylord National Harbor; on-site parking is usually available at major exhibition venues.

    Hotel → venue: Precinct hotels near Gaylord National Harbor: National Harbor / Alexandria: National Harbor / Alexandria; Alexandria Old Town Area South: Alexandria Old Town Area South; National Harbor / Alexandria: National Harbor / Alexandria.

    Ride-hail: Ride-hailing apps are commonly used in National Harbor; confirm local availability before travel.

    Public transit: National Harbor sits outside the Washington Metro rail core; confirm current bus or shuttle connections and ride-share options from your hotel to the Gaylord National Resort & Convention Center before arrival.

    Parking: On-site parking is available at Gaylord National Harbor; confirm daily rates and hall access on the organiser or venue site.

    Weather

    Plan and pack for the event climate.

    Month: March 2027

    Temperature: Approx. 2-14 C (35-58 F) across March: typical daytime highs around 12-14 C (53-58 F) and overnight lows around 2-5 C (35-41 F). Use these as planning bands, not a forecast for the conference week.

    Seasonality: Early spring in the Washington DC area brings roughly 8-10 wet days per month, mostly light rain or showers rather than all-day storms, plus occasional windy days off the Potomac. Late-March snow is possible but uncommon and usually melts quickly.

    Packing: Pack layers: a warm mid-layer or sweater for cool mornings, a packable waterproof jacket or umbrella for showers, and comfortable walking shoes for the distance between the Gaylord and nearby National Harbor hotels. Add gloves or a scarf if you feel the cold on the waterfront, and bring a light jacket for evening dinners. Indoor session rooms can run cool, so a sweater is useful during long education blocks.

    Plan your trip

    Planning

    Best day to visit: Day 2 (mid-show)

    Mid-show days at ACCA Conference & Expo usually combine full exhibitor attendance with scheduled B2B meetings, before early pack-down on the final day.

    T-1

    14 days out: confirm your registration tier (Gold, Silver or Bronze member vs Non-Member Contractor) and check that your ACCA membership status is current so you are not overcharged.

    T-2

    13 days out: download the conference schedule from accaconference.com, mark the business and technical sessions that match your service mix, and note any that conflict with Expo Hall hours.

    T-3

    12 days out: book or confirm your National Harbor hotel and check whether breakfast and parking are included, since most local properties charge extra for both.

    T-4

    11 days out: decide your airport (DCA is closest; IAD and BWI are cheaper from some origins) and arrange the transfer, because National Harbor has no direct Metrorail station.

    T-5

    10 days out: build a short Expo Hall list of equipment categories you are actually buying this year, such as heat pumps, A2L service tools, controls or software.

    T-6

    9 days out: brief your office on coverage for the days you are away and set an out-of-office reply with the dates you will be travelling.

    T-7

    7 days out: check the March National Harbor forecast and pack layers, a waterproof outer layer and comfortable shoes for the walk between the Gaylord and nearby hotels.

    T-8

    5 days out: print or save digital copies of your registration confirmation, hotel confirmation and any session tickets.

    T-9

    3 days out: confirm your ride-share or taxi plan from the airport and, if driving, check current Gaylord self-park rates.

    T-10

    1 day out: charge devices, pack a portable battery and a notebook for the Expo Hall, and plan to collect your badge early on day one to avoid the opening queue.

    Sample visitor itinerary

    Route-optimised day
    Day 1 · morning

    Registration and hall orientation at Gaylord National Harbor

    Day 2 · core sessions

    Supplier meetings and product demos

    Day 3 · wrap-up

    Final negotiations and follow-up

    Networking spots

    2

    ACCA Conference & Expo registration concourse

    Gaylord National Harbor

    Central meeting point before and between hall appointments during show days.

    Organiser B2B lounge (if offered)

    Gaylord National Harbor

    Hosted matchmaking and buyer programmes when published by the organiser.

    Budget

    Costs & budget

    Build your working budget

    Adjust the inputs below to create a directional event budget.

    Estimated budget
    Live estimate
    • Hotel × 2 nights$230.00
    • Per diem × 2$150.00
    Estimated total$380.00

    This is a directional estimate. Please verify live rates before booking.

    Cost reference

    Official cost items and estimated ranges for exhibitors.

    visitor_ticket

    visitor · Gold Member

    USD 859 / per person

    organiser_published

    visitor_ticket

    visitor · Silver Member

    USD 986 / per person

    organiser_published

    visitor_ticket

    visitor · Bronze Member

    USD 1099 / per person

    organiser_published

    visitor_ticket

    visitor · Non-Member Contractor

    USD 1239 / per person

    organiser_published

    Decision

    Visit, exhibit, or skip?

    Should you go?

    Use this quick check to decide whether ACCA Conference & Expo fits your visit, exhibit or skip plan.

    QUESTION 1 OF 6

    What is your primary role?

    Decision matrix

    Compare participation options side by side to choose the best fit for your objectives.

    visit

    Your category focus aligns with the official product themes.

    Best for

    Buyers, researchers, and delegates evaluating the programme and networking value.

    Min. budget

    $400.00

    Timeline

    4-8 weeks before opening day for registration and travel.

    Risks

    Limited session times published - confirm agenda before booking.

    exhibit

    You have a clear lead-generation or launch goal for this market.

    Best for

    Suppliers and brands seeking qualified meetings with the event audience.

    Min. budget

    $2,500.00

    Timeline

    3-6 months for stand booking, freight, and marketing prep.

    Risks

    Booth pricing not published in captured sources - confirm with organiser.

    skip

    Programme, audience, or commercial goals do not match your plan.

    Best for

    Teams whose category or region fit is weak this edition.

    Timeline

    N/A

    Risks

    No major risks listed.

    FAQs & glossary

    Answers

    Frequently asked

    What is the ACCA Conference & Expo?
    It is the annual national conference of the Air Conditioning Contractors of America, built for HVACR contracting businesses. The programme combines contractor-focused business and technical education with an Expo Hall of equipment, parts, controls, software and dealer services, and it runs in March 2027 at the Gaylord National Resort & Convention Center in National Harbor, Maryland.
    Who attends the ACCA Conference & Expo?
    Owners and managers of residential and commercial HVACR contracting firms make up the core audience, alongside service managers, installation leads, indoor air quality and home-performance specialists, and the manufacturer reps, distributors and software vendors who sell into those businesses.
    Where exactly is the event held?
    At the Gaylord National Resort & Convention Center, the large waterfront hotel and convention complex at National Harbor, Maryland, on the Potomac River just south of Washington DC. Registration, sessions and the Expo Hall are inside the same resort, so most attendees stay on site or in the surrounding National Harbor and Alexandria hotels.
    How do I register, and what do the member tiers mean?
    Registration runs through accaconference.com. Published contractor rates are tiered by ACCA membership level: Gold Member, Silver Member and Bronze Member, plus a higher Non-Member Contractor rate for firms that are not ACCA members. Confirm your company's current membership status with ACCA before booking so you are charged the correct tier.
    Can non-members attend?
    Yes. ACCA publishes a Non-Member Contractor rate for companies outside the association, priced above the member tiers. If you plan to attend more than once, compare the non-member rate against joining ACCA at the appropriate tier before registering.
    What does the Expo Hall cover?
    Expect HVAC equipment and components (heat pumps, condensing units, furnaces, ductless systems), A2L-compatible tools and recovery equipment, controls and thermostats, indoor air quality products, sheet metal and ducting, refrigeration lines, field-service and estimating software, financing, warranties, and dealer or franchise programmes aimed at contracting businesses.
    What topics does the education programme focus on?
    Contractor-side topics dominate: pricing and flat-rate models, service agreement sales, technician recruiting and retention, load calculation and duct design practice, refrigerant transition to A2L systems, heat pump retrofits and electrification incentives, and commercial service operations. Check the schedule page for the session list for this edition.
    How do I get from the airport to National Harbor?
    Ronald Reagan Washington National (DCA) is the closest major airport, roughly a 15 to 25 minute drive depending on traffic. Washington Dulles (IAD) and Baltimore/Washington (BWI) are both around 45 to 60 minutes by road. Ride-share and taxi are the simplest options because National Harbor sits outside the Washington Metro rail core; Metrorail plus a bus or rideshare transfer is cheaper but slower.
    Is there parking at the venue?
    The Gaylord National Resort has on-site parking, charged at daily self-park and valet rates set by the resort. Confirm the current rate and whether your hotel package includes parking, because National Harbor hotel rates usually exclude it.
    Do attendees earn continuing education credit?
    ACCA sessions often carry continuing-education recognition for contractor licensing and technician credentials, but credit categories and hours vary by state and by session. Confirm the approved credits and reporting process with ACCA or your state licensing board rather than assuming a session counts.
    How early should I book a hotel?
    National Harbor hotel inventory is limited and the Gaylord block fills first, so book as soon as your registration is confirmed. March is a normal business-travel month in the DC area, and nearby Alexandria properties are the usual overflow when the National Harbor hotels sell out.

    Glossary

    1
    ACCA
    Air Conditioning Contractors of America, the trade association that runs this conference; its membership tiers (Gold, Silver, Bronze) set the member registration rates for the event.
    2
    Manual J
    ACCA's residential load calculation standard used to size heating and cooling equipment by room-by-room heat gain and loss rather than rules of thumb.
    3
    Manual D
    ACCA's residential duct design method that sizes duct runs and fittings from the airflow the equipment actually needs.
    4
    Manual S
    ACCA's equipment selection procedure that matches published manufacturer performance data to the calculated load at design conditions.
    5
    SEER2
    The current US seasonal efficiency rating for central air conditioners and heat pumps, measured under the updated M1 test procedure with higher external static pressure.
    6
    HSPF2
    The matching heating-season efficiency rating for heat pumps under the same updated test procedure; it drives which models qualify for utility and rebate programmes.
    7
    A2L refrigerant
    Mildly flammable lower-global-warming refrigerants such as R-454B and R-32 now used in many new residential systems, requiring updated handling, storage and code practices.
    8
    Load calculation
    The engineering step that determines how much heating and cooling a building needs; in contractor offices it is usually a Manual J report rather than a square-foot guess.
    9
    Static pressure
    Resistance inside an air distribution system; high static pressure is a common cause of low airflow, premature blower failure and comfort complaints.
    10
    NATE certification
    North American Technician Excellence credential for HVAC technicians, often used by contractors as a hiring and quality benchmark.
    11
    Service agreement
    A recurring maintenance contract sold to homeowners or building owners; a core profit line for contractors and a frequent topic in business-session tracks.
    12
    Flat-rate pricing
    Pricing menu approach where each repair task has a published price rather than hourly billing, used to make quotes consistent across technicians.
    13
    IAQ
    Indoor air quality: filtration (MERV ratings), ventilation, humidity control and air cleaning products sold alongside core heating and cooling equipment.
    14
    Ductless mini-split
    A heat pump system with an outdoor unit and one or more wall, floor or ceiling cassettes, common in additions, retrofits and homes without ductwork.
    15
    Section 608
    The US EPA rule governing refrigerant handling, recovery and technician certification; updated requirements apply to A2L refrigerants.

    Also known as

    Alternate names and search phrases for this event.

    • ACCA Conference & Expo 2027
    • ACCA Conference & Expo National Harbor 2027
    • ACCA Conference 2027
    • ACCA Conference National Harbor 2027
    • ACCA 2027
    • ACCA National Harbor 2027
    • National Harbor United States
    • Heat pumps, including cold-climate and
    • Air conditioners, furnaces, air handlers

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