Schedule an appointment with our HVAC contractors serving Glen Mills, PA, Claymont, DE & Surrounding Areas Whether you're building a new home or upgrading your current one, it's important to hire an HVAC contractor you can trust for consistent, quality services. With over 30 years of industry experience, the pros at R&J Services are ready and willing to help with your HVAC replacement or new installation in the Claymont, DE area. Our team of experts will work with you every step of the way to make sure you're satisfied with our handiwork.