REACH (Renewable Energy & Clean Homes) provides rooftop solar sales and installation services in/near Gangtok. Empanelled with SREDA (state nodal agency), as stated on the company’s site. Contact: Email: solar@reachsikkim.com | Phone: 9593635445, 7602721421. Services: Rooftop PV (on‑grid/off‑grid), site survey, installation & maintenance. Vendors can claim this listing on SolSetu to update details.