---
title: AC Installation & Repair in Nashua NH | Free State Cooling & Heating
description: Professional air conditioning installation, repair, and replacement in Nashua NH, Southern NH & Northern MA. Same-day AC repair available. Free estimates.
url: https://freestatehvac.com/services/ac-installation-repair
last_updated: 2026-04-16
---

# AC Installation & Repair

Stay cool all summer with professional air conditioning services.

## Overview

Whether you need a brand-new central air system or a quick repair to get your existing unit back in shape, our certified technicians have you covered. We work with all major brands and provide honest assessments so you can make the best decision for your home and budget.

Stay cool all summer with professional air conditioning installation, repair, and replacement services for homes and businesses across Southern NH and Northern MA.

## What's Included

- Complete system installation and replacement
- Expert diagnostics and repair for all AC brands
- Energy-efficient upgrades that lower utility bills
- 24/7 emergency cooling service when you need it most

## Our Process

### 1. Assessment
We evaluate your system and needs. A licensed technician arrives on time, inspects your equipment, measures your home, and listens carefully to what's bothering you.

### 2. Recommendation
We provide honest options and pricing. Whether a targeted repair or a full replacement is smarter, we lay out the numbers clearly so you can choose with confidence.

### 3. Service
Our licensed technicians get to work. We arrive with the right parts, protect your home, and install or repair cleanly and on schedule.

### 4. Follow-Up
We ensure your complete satisfaction. After the job, we verify performance, walk you through the system, and check back to make sure everything is running the way you expect.

## Frequently Asked Questions

### How do I know if my AC unit needs to be replaced or just repaired?
Generally, if your system is over 12-15 years old, requires frequent repairs, uses R-22 refrigerant, or your energy bills have been climbing steadily, replacement is often the more cost-effective option. We will always give you an honest assessment and present both repair and replacement options so you can make an informed decision.

### What size air conditioner do I need for my home?
Proper sizing depends on many factors including square footage, insulation levels, window placement, ceiling height, and local climate. An oversized or undersized unit will waste energy and fail to keep you comfortable. We perform a Manual J load calculation to determine the exact size your home requires.

### How long does a typical AC installation take?
A straightforward replacement of an existing central AC system usually takes one day. If new ductwork, electrical upgrades, or a different system type is involved, it may take two days. We will provide a clear timeline during your estimate so you know what to expect.

### Why is my air conditioner running but not cooling the house?
Several issues can cause this: low refrigerant from a leak, a dirty or frozen evaporator coil, a failing compressor, a clogged condensate drain, or a malfunctioning thermostat. Some of these are simple fixes while others may indicate a more serious problem. We recommend scheduling a diagnostic visit so we can pinpoint the cause.

## Related Services

- Heating Installation & Repair — /services/heating-installation-repair
- Duct Work — /services/duct-work
- Maintenance Plans — /services/maintenance-plans
- Indoor Air Quality — /services/indoor-air-quality

## Contact

- **Sales:** (603) 718-0810
- **Service:** (603) 493-2236
- **Email:** fscoolingandheating@gmail.com
- **Address:** 221 Main Street, STE R, Nashua, NH
- **Hours:** Mon-Fri 7am-6pm | Emergency 24/7
- **Service Area:** Southern New Hampshire and Northern Massachusetts