AC Installation in Florence - One Written Price, Rebates Handled

Fast, Reliable AC Installation Across Florence

AC installation in Florence, TX typically runs $3,500-$7,500 for a full system changeout, and most jobs are scheduled within a few days after your free in-home estimate. We’re Coldharbour Heating & Air, and our AC Installation crew serves Florence from our Dallas-Fort Worth dispatch office, with technicians who know the difference between a rural propane setup and the gas-furnace jobs common down in Georgetown. Call (817) 402-2972 anytime - a live person answers, 24 hours a day.

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Florence sits in that pocket of Williamson County where the new subdivisions pushing up US-183 meet old ranch land and farmhouses on caliche roads. We’ve worked both. That split housing stock means we size equipment differently for a 1970s slab-on-grade with retrofitted ductwork than we do for a 2022 build off the highway. And because Florence has no municipal natural gas network, most homes here run all-electric heat pumps or propane-fired systems - a reality that changes every quote we write.

Why Coldharbour Heating & Air Is Florence’s Preferred AC Installation Company

We’ve been part of the Kingswell network since 2003, independently owned and operated the whole time. In Florence specifically, that means our technicians show up understanding propane tank clearances, heat pump low-ambient controls, and the foundation movement that kinks flexible duct connections in older slab homes on clay-heavy soil. Victor Mancini built this operation on The Kingswell Way: say the price before the work starts, show up in the window promised, leave the place cleaner than found, put the guarantee in writing, and come back if it fails.

Our 365-Day Done Right Promise applies to every repair - written down, handed to you, non-negotiable. If a repair fails inside that year, we return and correct it at no charge. No voicemail trees, either. When you call (817) 402-2972, a live person picks up, schedules your estimate, and gives you a firm arrival window. Background-checked, uniformed technicians. Upfront pricing in writing before any tool comes out. That’s the standard on every Florence job, not an upgrade.

AC Replacement in Florence

AC Replacement in Florence, TX means pulling out an existing cooling system and installing new equipment matched to your home’s actual heat gain, not a builder’s rule-of-thumb guess. Most full-system AC replacements in Florence run $3,500-$7,500, with the final figure riding on whether you’re staying all-electric, converting to or from propane, and what your ductwork condition looks like after years of central Texas heat and that caliche soil shifting beneath the slab.

We see a lot of replacement calls from Florence’s newer subdivisions. Builder-grade equipment, sized by square footage rather than room-by-room load calculation, starts showing its limits in the second or third summer. Short-cycling. Hot rooms. Compressors running at near-peak from June through September. By the time the homeowner calls us, the original warranty registration was often never completed at builder handoff - meaning a failed evaporator coil or blower motor in year two comes out of pocket.

Propane-to-Heat-Pump Conversions

Because Florence lacks municipal gas, some homeowners moving off propane choose a modern cold-climate heat pump instead. We handle the electrical service check, the refrigerant line sizing, and the removal of old propane furnace venting. The switch eliminates fuel delivery logistics and qualifies for federal tax credits some propane replacements don’t.

Load Calculations Before Every Quote

We run a Manual J load calculation on every AC replacement. In Florence, that means accounting for west-facing glass, ceiling heights in newer great-room plans, and the infiltration rates of older farmhouses with original windows. No guesswork on tonnage. The right size runs longer cycles at lower speed, which is what modern variable-speed equipment is built for.

Central Air Conditioning Installation in Florence

Central Air Conditioning Installation in Florence, TX covers new ducted systems in homes that never had them, additions that need tied into existing equipment, and full new-construction installs where the builder’s subcontractor cut corners on design. Most central air installations in Florence fall in that same $3,500-$7,500 range, though complex ductwork retrofits in older homes can push toward the higher end.

The field vignette that sticks with us: On a new-build slab in the Florence subdivision off US-183, we replaced a builder-grade 3-ton Goodman with a properly sized heat pump after a load calculation showed the original unit short-cycling against the home’s west-facing glass. During startup our tech found the static pressure on the return was double the design limit, so we opened up the undersized return and rebalanced the registers before charging the system. The homeowner’s first-summer cooling complaint disappeared and the compressor no longer ran at near-peak all afternoon. That’s the gap between a swap and a proper installation.

Duct Design and Static Pressure

Central air only works if the air can move. We measure total external static pressure after every install. In Florence’s tract-built homes, a single undersized filter grille often chokes the blower, dropping real SEER2 efficiency well below the number on the unit’s yellow tag. We fix that before we leave.

Freeze Protection for Heat Pumps

Winter Storm Uri froze refrigerant lines and cracked pipes in Florence homes whose heat pump air handlers sat in unconditioned attics without low-ambient controls or proper pipe insulation. We still see changeout crews skip this. We don’t. Freeze protection isn’t optional in a place that hits single digits every few years.

Trusted Brands We Service in Florence

Our technicians train on nine major residential HVAC brands: Carrier, Trane, Lennox, Goodman, Rheem, York, Daikin, Bryant, and American Standard. For Florence homeowners, that means we stock common parts locally and can source warranty components fast without waiting on a regional warehouse. We’ve installed Rheem and York heat pumps in Florence’s newer subdivisions, and we’ve serviced Daikin and Bryant systems in rural propane setups where parts availability can make or break a July repair timeline. Whatever equipment is in your home, the technician who shows up can work on it.

Common AC Installation Problems We See in Florence Homes

• Builder-grade equipment sized by square footage alone. A 2,400-square-foot home with a two-story great room facing west needs more cooling capacity than the same footprint with standard windows and eight-foot ceilings. We see rule-of-thumb sizing fail every summer in Florence’s newer builds.
• Warranty registration never completed at builder handoff. Manufacturers require proof of install date for parts coverage. Without it, a failed evaporator coil in year two is a full homeowner expense. We verify registration on every replacement and help new-install customers complete it.
• Return-air static pressure choking the blower. Tract homes with one undersized filter grille starve the system. The blower motor works harder, energy bills climb, and actual delivered efficiency drops. We measure and correct this on every Florence install.
• Heat pump lines in unconditioned attics without freeze protection. Uri wasn’t a fluke. Florence’s interior location means hard freezes recur. Low-ambient controls and proper pipe insulation around air handlers are standard on our installs, not add-ons.

Pricing for AC Installation in Florence, TX

We Also Serve Cities Near Florence

Our crews work throughout Williamson County and the northern Austin metro, including Florence, Liberty Hill, Georgetown, Leander, and Cedar Park. Dispatch and scheduling are coordinated from our Dallas-Fort Worth office, with local technicians serving each area. Whether you’re in a Georgetown subdivision with municipal gas or a rural Florence property on propane, we size and install to your actual conditions.

FAQs About AC Installation in Florence