# Heat pump installation in Collierville, TN

> Heat pumps for Collierville's two-story homes: variable speed upstairs, dual fuel and replacements, permitted through the town's Building and Codes office.

URL: https://blufflinememphisheatpumps.com/service-areas/collierville/

Service area, Shelby County

Heat pumps for Collierville's two-story homes: variable speed upstairs, dual fuel and replacements, permitted through the town's Building and Codes office.

(901) 657-2200

Last Updated: November 12, 2026

61% gas

of homes heat with utility gas; 38% with electricity (U.S. Census Bureau, ACS 2020-2024)

1998

median year homes were built (ACS 2020-2024)

Permit

Collierville Building and Codes Division

Utility

MLGW electric and gas

## What brings a house in Collierville to a new heat pump

### Upstairs clammy at 72 degrees

The upstairs system is oversized for its floor, so it cools fast and shuts off before the water comes out.

### Two systems, different ages

The downstairs unit was replaced a few years ago and the upstairs one is original.

### A furnace with years left

Six in ten Collierville homes heat with gas, and many furnaces outlast the AC beside them.

## Larger houses, one system per floor

Collierville’s houses are newer and larger than most around Memphis: the median was built in 1998, according to the Census Bureau, and many are two-story homes with a separate system for each floor.

[Bluffline Memphis Heat Pumps](https://blufflinememphisheatpumps.com/) installs heat pumps across Collierville, from the Town Square out to Schilling Farms and Houston Levee Road.

### What a two-system house needs

- **The upstairs system** is usually the problem: warm, damp bedrooms under a hot roof.
- **The downstairs system** often runs fine and may be newer.
- **Each one** should be sized for its own floor, not the whole house.

## When upstairs feels clammy

An upstairs at 72 degrees and 60 percent humidity feels sticky. The usual cause is a single-stage system that is bigger than the floor needs. It cools the air quickly, satisfies the thermostat and shuts off before much water has condensed on the coil.

### The fix that works

A load calculation for the upper floor alone, then a correctly sized [variable speed heat pump](https://blufflinememphisheatpumps.com/variable-speed-heat-pump/). Variable speed runs long and slow at low capacity, which keeps the coil cold longer and pulls more water out. At start-up we set the dehumidify mode and the airflow.

The [humidity guide](https://blufflinememphisheatpumps.com/guide/heat-pump-humidity-control/) explains the physics in plain terms.

## Replace one system, not two

Replacing both systems at once only makes sense when both are failing. Where the downstairs unit is recent and working, we leave it alone and replace the upstairs one.

### What we check on each

- **Age and refrigerant**, from the nameplates.
- **Static pressure**, since upstairs attic ducts are often the restriction.
- **Matched pairs**, so whichever system stays is still rated correctly.

## One system for two floors

Not every Collierville two-story has two systems. Where one system serves both floors, the gap between them is built in: heat rises, the upstairs ducts run through a hot attic, and the only return may sit at the foot of the stairs.

### What closes the gap

- **A return upstairs**, so air from the bedrooms can get back to the air handler.
- **Balancing dampers** on the supply trunk, set so more air reaches the upper floor in summer.
- **Sealed, insulated attic runs**, so the cooling gets to the bedrooms instead of the attic.
- **A variable speed system** that runs long enough for the far rooms to catch up.

Zoning with motorized dampers and two thermostats is another option where the ducts allow it. It costs more and needs a system that can run at reduced capacity, so we price it only where the duct layout suits it.

### Bonus rooms over the garage

Many Collierville houses have a bonus room over the garage, at the end of the longest duct run, over an unheated space and under a hot roof. It is usually the hardest room in the house to keep comfortable. A dedicated larger supply run and its own return often help more than any equipment change.

## Gas houses and dual fuel

About 61 percent of Collierville homes heat with MLGW gas. On a sound furnace, [dual fuel](https://blufflinememphisheatpumps.com/dual-fuel-heat-pump/) adds a heat pump where the AC was and keeps gas for the coldest nights.

### The furnace check

Before we price dual fuel, we inspect the heat exchanger, the flue and the blower and take a combustion reading. A blower that can’t move about 400 cubic feet per minute per ton at a usable speed changes the plan.

## Two outdoor units on one pad

Two-system houses usually put both outdoor units side by side. Each maker lists the clearance needed between units and from walls, so one unit doesn’t breathe the other’s warm discharge air.

When we set a new unit beside an old one, we check those clearances, level the pad and keep the line sets and disconnects separate and labeled. [Placement and noise](https://blufflinememphisheatpumps.com/guide/outdoor-unit-placement-noise/) covers clearances, and a variable speed unit’s low-speed hours help on narrow side yards near a neighbor’s window.

## Permits through Collierville

Collierville runs its own Building and Codes Division, so heat pump permits and inspections go through the town rather than the joint Memphis and Shelby County office.

We pull the permit through the town and schedule the inspection. Install day follows the permit.

## What it costs in Collierville

Upstairs-only variable speed replacements sit in the upper part of the whole-system range. Bluffline’s typical ranges for Collierville jobs:

| Job | Typical range |
| --- | --- |
| One floor’s system, both halves | $8,000 to $16,000 |
| Heat pump on a furnace that stays | $5,000 to $10,000 |
| Indoor air handler alone | $2,000 to $4,500 |
| Attic duct and return work with an install | $800 to $3,500 |

Your written estimate after the visit sets the price. The [cost guide](https://blufflinememphisheatpumps.com/heat-pump-installation-cost/) explains what moves it.

### TVA on MLGW

Collierville is on MLGW, a TVA power company, so TVA EnergyRight applies: $500 for a qualifying heat pump at 15 SEER2 and $800 at 17 SEER2, through a participating contractor in TVA’s Quality Contractor Network. Most variable speed models clear the higher tier. [SEER2 and HSPF2 explained](https://blufflinememphisheatpumps.com/guide/seer2-hspf2-explained/) covers the ratings.

## Attic air handlers upstairs

The upstairs air handler in a Collierville two-story usually sits in the attic, above the bedrooms. That puts gallons of summer condensate over a ceiling.

### What every attic unit gets

- **A secondary pan** under the unit.
- **A float switch** that shuts the system off before the pan overflows.
- **A drain line** with a cleanout.

If only the attic unit is failing, [air handler replacement](https://blufflinememphisheatpumps.com/heat-pump-air-handler-replacement/) covers the indoor half alone.

## Before we come out

These save time on the visit:

- **Nameplate photos** for both outdoor units and both indoor units.
- **Which floor** has the problem, and when.
- **The thermostat models.**
- **Twelve months of MLGW usage.**

## Nearby

We work across Collierville, from the Town Square and W.C. Johnson Park to Byhalia Road.

[Germantown](https://blufflinememphisheatpumps.com/service-areas/germantown/) to the west has older 1980s houses and uses the joint county permit office. [Arlington](https://blufflinememphisheatpumps.com/service-areas/arlington/) and [Lakeland](https://blufflinememphisheatpumps.com/service-areas/lakeland/) to the north are newer still. The [Memphis heat pump buying guide](https://blufflinememphisheatpumps.com/guide/memphis-heat-pump-buying-guide/) walks through the whole choice.

## Services in Collierville

- [Service**Variable speed heat pumps** Long, slow runs that pull more water out of a Memphis summer and keep two-story houses even.](https://blufflinememphisheatpumps.com/variable-speed-heat-pump/)
- [Service**Dual fuel heat pumps** A heat pump in place of your AC, on top of the gas furnace you keep, with the handoff set for MLGW rates.](https://blufflinememphisheatpumps.com/dual-fuel-heat-pump/)
- [Service**Heat pump replacement** Your heat pump is near the end and you want the next one to last. We size it from the house and match both halves.](https://blufflinememphisheatpumps.com/heat-pump-replacement/)
- [Service**Air handlers** The indoor half decides airflow, drainage and backup heat. We replace it with a matched unit and keep a sound outdoor unit.](https://blufflinememphisheatpumps.com/heat-pump-air-handler-replacement/)

## Two systems on one Collierville lot

Newer Collierville houses often have one system per floor, and the upstairs one is usually the problem. In this 2002 two-story near the Town Square the bedrooms stay clammy at 72 degrees because the upstairs heat pump is oversized for the floor it serves.

Where

Collierville, near the Town Square

The house

2002 two-story, about 3,200 sq ft, two systems

Price

$15,600

Time on site

2 days

1. Permit through Collierville Collierville has its own Building and Codes Division, so the permit and inspection go through the town.
2. Replace only what fails The downstairs two-stage system from 2017 stays. Only the upstairs changes.
3. Variable speed, right size A 2.5-ton variable speed heat pump replaces the 3-ton single-stage unit, so it runs long and slow and pulls more water out.
4. Share the pad The new unit sits beside the downstairs one on the shared pad, with the maker's clearance between them.

## How a job usually runs in Collierville

### Call or send the form

Tell us what heats and cools the house now and what's going wrong.

### One visit

We look at the equipment, ducts, panel and the spot outside and run the load numbers.

### Written estimate

Load figures, matched model numbers, scope and price on one page.

### Install and start-up

Permit pulled, system set, line set tested, and the start-up readings handed to you.

## Neighborhoods, landmarks and routes

### Neighborhoods

- Town Square
- Schilling Farms
- Houston Levee Road
- Byhalia Road
- Collierville-Arlington Road

### Landmarks

- Collierville Town Square
- Harrell Theatre
- W.C. Johnson Park

### Getting around

- Poplar Avenue (US 72)
- Bill Morris Parkway (SR 385)
- Houston Levee Road
- Byhalia Road

[Open Collierville, TN in Google Maps](https://www.google.com/maps/search/?api=1&query=Collierville%2C%20TN)

## Collierville: questions

### Who issues mechanical permits in Collierville?

Collierville's own Building and Codes Division, not the joint Memphis and Shelby County office. We pull the permit through the town and schedule the inspection.

### Should I replace both systems in my Collierville house at once?

Only if both are failing. Where the downstairs system is recent and working, replacing just the upstairs one, often with a variable speed unit, fixes the floor that needs it and leaves the good system alone.

### Why is my Collierville upstairs humid even though it's cool?

Usually an oversized single-stage system that cools the air fast and shuts off before it removes much water, plus attic ducts that gain heat. Right-sizing and a variable speed unit running long and slow fix most of it.

### Do two outdoor units on one pad need special spacing?

Yes. Each maker lists a minimum clearance between units and from walls, so the units don't recirculate each other's discharge air. We set the new unit to those numbers on a shared pad.

### What does a variable speed upstairs system cost in Collierville?

It sits in the upper part of Bluffline's $8,000 to $16,000 typical range for a whole-home ducted system, set by size and the matched air handler. Your written estimate after the visit sets the price.

## Nearby towns

- [Shelby County**Germantown** Heat pumps for Germantown homes, most heated by MLGW gas: dual fuel or all-electric, sized from a load calculation, permitted through the joint county office.](https://blufflinememphisheatpumps.com/service-areas/germantown/)
- [Shelby County**Arlington** Heat pumps for Arlington's newer homes: quieter outdoor units placed away from bedrooms, dual fuel on gas furnaces, with permits through Shelby County.](https://blufflinememphisheatpumps.com/service-areas/arlington/)
- [Shelby County**Lakeland** Heat pumps for Lakeland's 2000s two-story homes: ending R-22 refills, attic air handlers with proper drain pans, and dual fuel on a furnace with years left.](https://blufflinememphisheatpumps.com/service-areas/lakeland/)

## Guides for houses in Collierville

- [Learn**Does a heat pump remove humidity from a Memphis house?** Why 72 degrees can still feel clammy, where the water goes, and the four things that decide how dry a heat pump keeps the house.](https://blufflinememphisheatpumps.com/guide/heat-pump-humidity-control/)
- [Learn**Where should a heat pump's outdoor unit go, and how loud will it be?** Clearances, pads, drainage and sound on narrow Memphis side yards, and when it is worth moving the unit at replacement time.](https://blufflinememphisheatpumps.com/guide/outdoor-unit-placement-noise/)
- [Learn**What do SEER2 and HSPF2 mean on a heat pump?** The two numbers on every heat pump quote, what changed when they got a 2, and how much a higher rating is worth in a Memphis house.](https://blufflinememphisheatpumps.com/guide/seer2-hspf2-explained/)
- [Decision Guide**How do you buy the right heat pump for a Memphis house?** The whole decision in the order you meet it, from the system you have now to the readings you should get at start-up.](https://blufflinememphisheatpumps.com/guide/memphis-heat-pump-buying-guide/)

## Get an estimate in Collierville

Tell us what heats and cools the house now and what's going wrong in Collierville.

(901) 657-2200