Looking for a Manual J calculation in Opelika, AL? Describe your project once and up to three HVAC designers who work in Opelika and Lee County get back to you with a quote. It's free and there is no obligation.
Opelika is home to about 35,005 people (2024 Census Bureau estimate), a growing community (+12.9% since 2020). With 569 people per sq mi, it is a semi-rural area. HVAC permits here increasingly require load calculations, especially for new homes and heat pumps.
Opelika at a glance
- Population (Census Bureau estimate, 2024)
- 35,005 (+12.9% since 2020)
- Rank in Alabama
- 15th of 463 cities and towns
- Land area
- 61 sq mi
- Population density
- 569 people per sq mi (semi-rural)
- Type
- City (Opelika city)
- Main county
- Lee County
What to check before hiring in Opelika
- Requirements: in Alabama, ask the building department what report format it expects.
- Inputs: accurate plans and window data make the calculation reliable.
- Volume: builders can often get pricing for several homes.
- Price drivers: home size, number of zones and whether S and D are included.
Useful official resources
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ACCA: Air Conditioning Contractors of America
Official information and guidance.
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ICC: International Code Council
Official information and guidance.
Services available in Opelika
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Manual J load calculation
Room-by-room heating and cooling load calculation for the HVAC permit.
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Manual S and D equipment and duct design
Equipment selection and duct design from the load calculation.
Frequently asked questions in Opelika
How much does a Manual J cost in Opelika, AL?
It depends on the home and the reports needed. Describe your project: designers who serve Opelika reply with a quote.
How long does it take?
Often a few days once plans are received.
Can it be done remotely?
Usually yes, from plans and specifications.
Which HVAC designers will contact me?
Up to three independent HVAC designers who serve Opelika and the surrounding area, chosen for the service you need. Your details are shared only with your consent.
Source: U.S. Census Bureau, Population Estimates Program (Vintage 2024) and Gazetteer Files (public domain), imported on 10/31/2026. Figures describe the incorporated place or county as published; they are shown for information only.