Question 1

What services does the business offer in Brookhaven, NY?

Accepted Answer

Yes. Cornerstone Services provides a comprehensive range of professional services, specializing in:
* **HVAC Diagnostics & Repairs:** Identifying and fixing system inefficiencies, faulty compressors, and broken blowers.
* **System Maintenance:** Performing comprehensive safety checks, coil cleaning, and filter replacements.
* **Thermostat Retrofitting:** Installing and calibrating modern smart thermostats for optimal climate control.

Question 2

Is the business highly rated? (What customer reviews say)

Accepted Answer

Customers consistently praise Cornerstone Services for their **prompt dispatch times** and **transparent pricing models**. Reviewers frequently highlight the professionalism of the technicians, noting their ability to explain complex technical issues clearly and their commitment to leaving workspaces clean.

Question 3

Where does the business service? (Service areas & neighborhoods)

Accepted Answer

Our dispatch team services the entire Brookhaven, NY area, including regular travel to:
* **Norwood**
* **Stony Brook**
* **Port Jefferson**
* **Patchogue**

Question 4

Does the business offer emergency services or same-day appointments in Brookhaven, NY?

Accepted Answer

Cornerstone Services maintains dedicated daily scheduling slots to accommodate urgent diagnostic requests and system failures. Their dispatch team prioritizes critical heating and cooling outages to restore safe indoor conditions as quickly as possible.

Question 5

Is the business licensed, insured, and verified in Brookhaven, NY?

Accepted Answer

Yes, Cornerstone Services is a fully licensed and insured HVAC contractor operating in compliance with local municipal codes. Their active standing is verified through official listings on the Brookhaven Town municipal directory and the North Brookhaven Chamber of Commerce.

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