📍 286 Harrison Ave, Miller Place, NY, 11764
📞 631-744-6669
Locally owned and operated. See us for all your needs
📍 5 Hilltop Ct, Rocky Point, NY, 11778
📞 631-849-4193
📍 301 Myrtle Ave, Port Jefferson, NY, 11777
📞 631-213-3763
Solar Power products
📍 6 Roosevelt Ave, Port Jefferson Station, NY, 11776
📞 631-403-4295
📍 365 Route 25a, Mount Sinai, NY, 11766
📞 631-331-7400
📍 1555 Rocky Point Rd, Middle Island, NY, 11953
📞 631-509-1190
Updated Oct 2026
📍 3771 Nesconset Highway, South Setauket, NY, 11720
📞 631-751-7925
🌐 www.energy-experts.net
Residential Energy Conservation, an independent energy services & energy consultation company based out of South Setauket, NY specializing in providing services to residential home builders, Architects, Engineers & home owners located in Nassau & Suffolk Counties. We specialize in assisting private & professional sector clients in designing, installing & retrofitting residential homes with thermal, structural & mechanical improvements following sound building science in order to reduce consumption & improve comfort, health & safety. We are also a leading conservation & consulting company on Long Island. The company is licensed in Suffolk & Nassau Counties, registered with consumer affairs as providing comprehensive home assessments. Our Staff Consists Of: Five building Performance Institute (BP) certified Building Analyst's, One BPI Shell specialist, One BPI heating certified professional, Two RESNET Home Energy Rater's One RESNET Quality Assurance Designee and Two ANSI Level 1 Thermographers. Glenn Hooper sits on the Board for building performance contractors association for NYS & LI chapter, he is also the NYS & CT trainer for Elite RHVAC software & instructs HVAC professionals how to provide quality Manual J 8th ed. heating & cooling loads using Elite software. Glenn Hooper has also been in the residiential building industry for over 20 years, & is uniquely qualified in residential construction. Residential Energy Conservation is also the recipient of Long Island Power Authority's award for achieving the highest average energy savings for total projects submitted in 2010 over any other company.
📍 365 Route 25a Ste 1, Mount Sinai, NY, 11766
📞 631-509-4420
📍 340 Route 25a, Miller Place, NY, 11764
📞 631-331-3180
📍 5 Tallmadge Trl, Miller Place, NY, 11764
📞 631-474-0541