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Celebrating 15+ Years of Excellence in HVAC Design
Your Trusted HVAC Design Experts
Discover our expertise in Manual J, D, and S calculations, tailored to optimize your indoor climate.
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1,500+
Projects Successfully Completed
Why Choose G&J HVAC Design
With over 15 years of industry experience, our family-run business delivers personalized HVAC solutions that ensure comfort and efficiency.
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Our Design Process
Explore our meticulous approach to HVAC design, ensuring every project meets both your needs and industry standards.
Assessment & Planning
Design & Calculation
Implementation & Review
Completion & Satisfaction
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Our Achievements
G&J HVAC Design is proud of its track record in delivering exceptional HVAC solutions that enhance comfort and efficiency.
500+
Satisfied Clients
Building long-term relationships through quality service.
15+ Years
Industry Experience
Expertise in Manual J, D, and S calculations.
1,500
Projects Completed
Delivering tailored HVAC solutions with precision.
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G&J HVAC Design
G&J HVAC Design transformed our home comfort. Their expertise in Manual J, D, and S calculations made all the difference.
The team's dedication and attention to detail were remarkable. Our HVAC system now runs more efficiently than ever.
Jordan Smith, Homeowner
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Connect with G&J HVAC Design
Reach out to our expert team for inquiries, support, or to start your next HVAC project.
Office Hours
Monday-Friday 9:00 am to 6:00 pm
Our Address
Baltimore County, Maryland
Contact Us
+1 443-757-2715
GJHVACDesign@yahoo.com
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In the right area, tell Kimmy what kind of section you want to add, like "I'd like to add a product introduction here."
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