If your energy bills keep climbing every summer and your old thermostat can't keep up with Nashville's heat, a smart thermostat installation gives you the control and savings your home needs. For homeowners across Middle Tennessee, upgrading to a new smart thermostat is one of the most effective ways to save money on heating and cooling costs while making your house more comfortable year-round.
Smart thermostats can save households an average of about 8% on annual heating and cooling costs, and installing a smart thermostat can save users 10% to 20% on utility bills depending on your habits and home setup. At Coolray, we handle every step of the installation process so you get it done right the first time.
We've built our reputation on doing honest work and standing behind it. Here's what that looks like in practice:
Choosing who installs your new thermostat matters just as much as choosing the device itself. Our HVAC technician team goes through Coolray Academy training specifically so they can handle the range of systems found throughout Middle Tennessee. That means whether your home has a heat pump, a multi-stage system, or zoned HVAC, we make sure your smart thermostat is fully compatible and optimized.
We offer a range of smart thermostat services designed to fit whatever your home needs. Whether you're upgrading a single thermostat or outfitting a large house with multiple zones, we've got you covered.
This is our most popular service. We handle the complete removal of your old thermostat, inspect and label all wires, and install your new smart model. If your home lacks a c wire (common in Middle Tennessee houses built before the 1990s), we can install one or set up an adapter so your thermostat powers its Wi-Fi and smart features without trouble. Smart thermostats require a C-wire to power Wi-Fi and smart features, so getting this right is essential. Every standard installation includes full Wi-Fi setup and smartphone app configuration so you're in control before we leave.
Planning to replace your HVAC system? This is the perfect time to install a smart thermostat that's fully integrated from the start. We perform a complete system compatibility assessment, install your new HVAC equipment, and pair it with the ideal thermostat for your Tennessee home. Smart thermostats automate heating and cooling to optimize performance, and pairing them with a modern system gives you the best possible energy efficiency.
Larger homes with zoned HVAC systems benefit enormously from smart thermostat control. We install a thermostat in each zone so you can manage temperatures independently across different floors and areas. Some smart thermostats use remote sensors to enhance comfort while saving energy, which is especially helpful in two-story homes where upstairs rooms get significantly warmer during summer afternoons. Our technicians set up advanced scheduling and automation for coordinated temperature control throughout your house.
We've designed our installation process to be simple and transparent. Here's what to expect from start to finish.
A Coolray HVAC professional visits your home to evaluate your current thermostat and HVAC system. We check your wiring, count the wires running to your thermostat, verify whether you have a dedicated c wire, and identify your system type. We discuss which smart thermostat options work best for your specific setup and provide upfront fixed pricing with no surprises. This assessment is always free.
On installation day, your technician will begin by turning off the HVAC system at the breaker panel. Cutting power prevents shorting electrical components, and even though older thermostats may still appear on when powered down, we always double-check that the HVAC system is completely off. Sometimes multiple breakers control different parts of the system, so we verify every one.
Next, we remove the faceplate of the old thermostat and take a photo of the existing wiring for reference. That picture becomes our guide throughout the process. We use a screwdriver to remove the old thermostat's backplate and carefully disconnect all wires. Each wire gets labeled so there's a clear record of what goes where.
Then we mark the wall for the new thermostat's backplate installation. A level is required to ensure proper alignment, and we may need to drill holes for mounting screws. Wall anchors may be needed for secure installation depending on your wall type. Once the new backplate is secured, we insert wires into the corresponding terminals on the new thermostat and reconnect the wires according to the labeled photo. If your home needs a c wire installed, we handle that wiring work as part of the process.
After the new faceplate snaps into place and all connections are verified, we restore power at the breaker panel.
With power restored, we connect the thermostat to Wi-Fi after installation and follow prompts to set up the companion smartphone app. You can typically complete setup within 30 minutes of powering on the thermostat. We program your preferred schedules and temperature preferences, configure any remote sensors included with your device, and integrate it with your smart home system if desired. Devices can automatically adapt to user routines and enter an "away mode," which means your thermostat learns when you're home and when you're not, so it avoids heating or cooling an empty house.
We then run full heating and cooling cycles to make sure everything communicates properly. Your HVAC technician verifies that every mode works correctly before walking you through the step by step instructions for daily use.
Our technicians serve homeowners throughout the Nashville metro and surrounding Middle Tennessee communities, including:
Nashville (all neighborhoods including East Nashville, Germantown, Green Hills, Sylvan Park, and Bellevue)
We're familiar with the building styles, HVAC configurations, and wiring setups common throughout these areas. That local expertise means fewer surprises and faster installations for you.
A new smart thermostat is one of the simplest upgrades you can make to save money on your cooling costs and heating bills while keeping your Middle Tennessee home more comfortable. Installing a smart thermostat can significantly lower energy waste, and the savings add up year after year. With Coolray's fixed pricing, 10-year warranty, and same-day availability, there's no reason to wait.
The thermostat device itself generally costs between $70 and $250 depending on brand and features. Professional installation labor typically adds $130 to $220 when wiring is straightforward. Total costs for a complete installation usually fall between $200 and $500. If your home needs a c wire installed or has a more complex setup like multi-zone HVAC, costs can range from $300 to $630. Coolray provides fixed pricing upfront so you always know the total before we begin. Many energy companies provide financial incentives for upgrading to energy-efficient models, and many utility providers offer rebates for installing certified smart thermostats, so be sure to ask us about available rebates from your local provider.
Most smart thermostats need a common wire (c wire) to power their Wi-Fi connectivity and smart features. Many older Middle Tennessee homes built before the 1990s don't have one. If you're unsure whether your home has a c wire, that's exactly what our free assessment covers. If it's missing, we can run a new wire back to your HVAC system, install an adapter, or recommend a compatible model that works without one. Adding a c wire typically costs an additional $75 to $250 depending on your home's layout.
Our 10-year parts and labor warranty covers the complete installation, not just the device. Standard manufacturer warranties typically cover parts for 2 to 5 years. Our warranty goes well beyond that. If the thermostat fails, if wiring develops an issue, or if something needs adjustment, we come back and take care of it at no additional cost. That kind of coverage is rare in this market and gives you real peace of mind. ENERGY STAR certified smart thermostats enter a low-power mode when not in use, and periodic software updates maximize energy savings in smart thermostats, so we also make sure your device stays current.
For homes with compatible wiring and a single zone, installation typically takes 1 to 2 hours and can often be completed same day. While installing a smart thermostat is a quick DIY upgrade for some homeowners, professional installation ensures your system is wired correctly, fully tested, and covered by warranty. If you need a c wire installed or have multiple zones, it may take a bit longer. We also offer 24/7 emergency support if your current thermostat fails and you need a replacement fast. Just contact our team and we'll get you scheduled.
Repiping costs vary based on home size and pipe material, as well as the number of fixtures, accessibility of your plumbing runs, and whether you choose copper or PEX. A whole home repipe in the Nashville area typically ranges from $3,000 to $13,000 or more depending on these factors. Partial repipes often fall in the $1,500 to $5,000 range. We provide free in-home estimates with honest pricing so you know exactly what the job will cost before any work begins. We also offer financing options to make larger projects more manageable.
A typical repiping project takes 3 to 7 days to complete for a standard home. Homes with crawlspace access tend to go faster, while slab foundations or multi-story layouts may take a bit longer. During the work, we isolate sections and replace them strategically so you have water available for most of the process. There will be brief periods where we need to shut water off, but we always coordinate with you to schedule around your needs so there's minimal disruption to your daily routine.
Every repiping installation from Coolray comes with our 10-year parts and labor warranty. We use copper and PEX pipes, which are the two most popular and reliable materials in the industry today. Copper is ideal for exposed runs and offers exceptional durability. PEX, or cross linked polyethylene, is flexible, resistant to scale buildup, and performs well in our Middle Tennessee freeze and thaw cycles. Both are code-approved, and we use the right materials and fittings for your specific home. Hard water issues can require water softeners or flushes for effectiveness, and we can advise you on that as part of your assessment.
There are several signs to notice. Discolored or foul-smelling water can indicate pipe corrosion. Low water pressure can signal corroded pipes restricting flow. Frequent leaks can be a sign of failing plumbing, and water damage spots on ceilings suggest plumbing issues behind your walls. Corroded pipes can affect water quality, impacting daily activities like cooking and bathing. If your home was built before the mid-1980s and still has its original plumbing, it's worth having an inspection. Leaking pipes can cause damage to a home, including mold and rotting, so acting sooner rather than later saves money.
Absolutely. Repiping can increase your home's resale value significantly. New pipes reduce leaks and water damage risks, and repiping enhances water quality by eliminating rust. Home inspectors flag outdated plumbing more rigorously now than ever, and buyers pay attention. A complete pipe replacement with modern materials removes a major concern for potential buyers and can easily justify the investment when it comes time to sell.
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