Cornerstone Services - Electrical, Plumbing, Heat/Cool, Handyman, Cleaning

Cornerstone Services operates as a multi-trade contractor serving Salem, New Hampshire, alongside nearby communities including Derry, Londonderry, and Windham. The business holds a 4.8-star rating compiled from 1,319 customer reviews, positioning it among the most reviewed contractors in the greater Salem region. While the company offers electrical, plumbing, heating and cooling, handyman, and house cleaning services, it is categorized specifically as an electrician service provider. Customer feedback indicates the company dispatches technicians across its service divisions to handle both routine maintenance projects and more complex system installations.

What distinguishes Cornerstone Services from neighboring contractors is the rapid response capability highlighted across multiple reviews. Several customers describe experiencing same-day technician arrivals, with one reviewer noting a team member reached their residence within an hour of calling about a broken solar hot water system. The company appears to maintain availability around the clock, seven days per week, a feature that proves particularly valuable for homeowners facing urgent system failures. Customer reviews also reference pricing transparency, with technicians discussing costs upfront before beginning work.

Customer accounts provide insight into specific project experiences with Cornerstone technicians. One reviewer describes Arnold and Jorge completing handyman tasks efficiently while demonstrating knowledge of the work required. Another account recounts a heating system conversion project where the homeowner's existing oil-based system was replaced with a propane setup. The project involved coordination across multiple trades, including boiler removal, oil tank decommissioning, wall reconstruction, and new equipment installation. Reviewers consistently characterize team members as professional and communicative throughout their projects.