Seasonal tune-up and full diagnostic on your Carrier, Trane, or Goodman system - readings shown to you before any repair is proposed
Diagnosis first, numbers second - you approve the repair price before a single part goes in.
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AfterFast, Reliable AC Installation Across Arlington
A new AC installation in Arlington typically runs $3,500-$7,500 for a full system replacement, and every job starts with a room-by-room load calculation rather than copying the old equipment’s tonnage. We’re Coldharbour Heating & Air, and our AC Installation team has spent years working the subdivisions east of Collins Street, around Dalworthington Gardens, and throughout the 1970s-to-1990s tract homes that make up most of Arlington’s housing stock. Dispatch and scheduling are coordinated from our Seattle office, but the crews serving Arlington live and work locally. We answer the phone 24 hours a day, 7 days a week, and a real person picks up every time. Call (817) 402-2972 for a free written estimate.
Why Coldharbour Heating & Air Is Arlington’s Preferred AC Installation Company
Arlington is essentially built out and landlocked between Dallas and Fort Worth, which means nearly every AC installation we do here is a retrofit in a 30- to 50-year-old home, not new construction. That changes everything about how we size, spec, and install the equipment. Our technicians are trained on nine major brands including Trane, Lennox, Goodman, and Rheem, so whatever system is in your attic, we know how to replace it properly.
We show up in the window we promised, leave the job site cleaner than we found it, and put our guarantee in writing before we leave. The Kingswell Way means the price is handed to you before a single tool comes out, and it does not change at the door. Our 365-Day Done Right Promise covers every repair: if it fails within a full year, we come back and correct the work at no charge. No argument, no additional fee.
Homeowners in Arlington call us because they’ve been burned before, by a no-show or a price that jumped once the truck was in the driveway. We don’t operate that way. The written price, the written guarantee, and the live person on the phone are non-negotiable standards, not upgrades.
Heat Pump Installation in Arlington
Heat Pump Installation in Arlington has become one of our most requested services, especially after Winter Storm Uri in February 2021 exposed how many local homes were built around cooling dominance with chronically undersized heating capacity. A heat pump replaces both your outdoor condenser and your indoor air handler with a single system that heats and cools by moving refrigerant rather than burning fuel. In Arlington’s climate, where July highs push past 97°F for weeks at a time but ice storms still hit hard every few years, a properly sized heat pump with auxiliary heat strips can handle both extremes more efficiently than the original builder-grade cooling-only system.
Most Arlington heat pump installations fall in the same $3,500-$7,500 range as standard AC replacements, though dual-fuel setups with a gas furnace backup run toward the higher end. The critical step is the load calculation. We don’t match the old tonnage. We measure each room, account for the 150°F-plus attic your ductwork runs through, and size the system for the actual envelope it serves.
When a Heat Pump Makes Sense Over Straight AC
If your furnace is past its design life or you’re already planning to replace both the cooling and heating sides, a heat pump usually wins on operating cost. Arlington’s electric rates and the frequency of mild winter days make the math work. We see the best results in homes where we also seal the attic ductwork, because a heat pump’s efficiency drops fast when it’s losing conditioned air into a broiling attic through separated flex-duct collars.
Post-Uri Upgrades We Still See
Four years after that freeze, we’re still replacing gas furnaces that failed from overwork in homes where the original heating capacity was sized for Dallas-Fort Worth’s typical mild winters, not a multi-day grid collapse. A heat pump with properly sized auxiliary heat avoids that vulnerability without the carbon-monoxide risk or combustion venting of a gas furnace in a tight attic.
Ductless Mini Split Installation in Arlington
Ductless Mini Split Installation in Arlington solves a problem that full-system replacements often can’t touch: the home office over the garage that never gets enough airflow, the master bedroom at the end of a 40-foot attic duct run, or the converted patio that has no ductwork at all. A mini split is a heat pump system with an outdoor compressor and one or more indoor wall- or ceiling-mounted heads, connected by a small refrigerant line set that needs no ductwork. Each zone has its own thermostat, so you’re not cooling an empty guest room to 72°F because the hallway return says so.
In Arlington’s older subdivisions, we’ve installed mini splits as whole-house solutions for homes where the original ductwork is too far gone to salvage, and as targeted add-ons where the main system is fine but one room is a perennial complaint. Pricing starts in the lower half of our $3,500-$7,500 AC installation range for a single-zone system and scales with each additional head.
Garage Conversions and Additions
Arlington’s 1980s ranches often get garage conversions or room additions that the original duct system was never designed to serve. Tapping into the existing plenum usually creates pressure imbalances and hot spots. A mini split gives the new space independent climate control without stealing airflow from the rest of the house.
Whole-House Mini Split Retrofits
When we find attic flex duct that has separated at multiple collars and the slab-on-grade plenum connections are leaking from clay soil movement, sometimes the ductwork is the real problem and the equipment is secondary. A multi-zone mini split eliminates the attic duct entirely. We’ve done this in homes east of Collins Street where the attic hits 155°F and any duct up there is fighting a losing battle.
Trusted Brands We Service in Arlington
Our technicians are trained to install and service Carrier, Trane, Lennox, Goodman, Rheem, York, Daikin, Bryant, and American Standard. For Arlington customers, that means we stock common parts locally and can match a replacement system to whatever infrastructure is already in your home. We don’t push one brand because we have a quota. We spec the equipment that fits the load calculation, the existing electrical service, and your budget. Trane and Lennox systems are popular in Arlington for their warranty terms and local parts availability. Goodman and Rheem offer strong value for homeowners who need reliable cooling without premium pricing. Every system we install gets registered for warranty coverage before we leave, because an unregistered compressor is an uncovered compressor.
Common AC Installation Problems We See in Arlington Homes
- Builder-grade tonnage by square-foot rule of thumb. The original equipment was rarely sized with a room-by-room Manual J load calculation. We regularly find 3.5-ton condensers on homes that only need 2.5 tons of sensible cooling, which short-cycles the compressor and leaves humidity at 65% even when the thermostat says 72°F.
- Attic flex duct separated at the plenum collar. In the Dalworthington Gardens pocket and subdivisions east of Collins Street, we find 1980s flex duct that has pulled loose from its collar and is dumping conditioned air straight into a 150°F-plus attic. The homeowner knows only that the electric bill is $400 in July and the house never quite gets comfortable.
- Slab-on-grade plenum connections stressed by Blackland Prairie clay. Arlington’s expansive clay soil swells in wet seasons and shrinks in drought, cracking and shifting supply plenums where they pass through or near the slab. A new condenser and coil won’t fix air leaking into the dirt under your foundation.
- Warranty registration never filed. Builder-grade systems from the 1980s and 1990s were often never registered by the original installer, and we’ve seen homeowners pay for compressor replacements that should have been covered. We file every registration before we leave your driveway.
Pricing for AC Installation in Arlington, WA
A typical full AC installation in Arlington runs $3,500-$7,500, including the outdoor condenser, indoor evaporator coil, electrical connections, and refrigerant line set. What pushes a job toward the higher end: ductwork modifications or replacement, electrical panel upgrades to handle a heat pump’s auxiliary heat strips, and dual-fuel configurations with a gas furnace backup. What keeps it lower: straight condenser-and-coil swaps where the existing ductwork passes a pressure test and the electrical service is adequate.
| Service | Price Range |
|---|---|
| AC Installation | $3,500-$7,500 |
| AC Repair | $150-$650 |
| Tune-Up | $80-$200 |
We provide a written, itemized price before any work begins. That price does not change when the technician is standing at your door. Estimates are free, and we encourage you to get a second opinion. Call (817) 402-2972 to schedule.
We Also Serve Cities Near Arlington
Our crews work throughout the northern Puget Sound area, including Arlington and the surrounding communities of Marysville, Granite Falls, Lake Stevens, and Stanwood. The same written pricing, same load calculations, and same 365-Day Done Right Promise apply in every city we serve.
Serving Arlington, WA - Our Local Coverage Area
We’re based in the Arlington area and know this community well. Use the map below to see our service coverage - if you’re nearby, we can almost certainly help.
FAQs About AC Installation in Arlington
Because the original equipment was almost certainly sized by a builder’s rule of thumb, not by measuring your home’s actual heat gain. In Arlington’s 1970s-to-1990s tract homes, we regularly find oversized condensers that short-cycle, fail to dehumidify, and die young from compressor stress. A room-by-room load calculation accounts for your actual insulation, window efficiency, duct condition, and the 150°F attic those ducts run through. Call (817) 402-2972 and we’ll run the numbers for free.
SEER2 is the updated efficiency standard that measures cooling output against electricity use under more realistic conditions than the old SEER rating, including higher outdoor temperatures and more demanding static pressure. For Arlington, where systems run 14-16 hours a day in peak summer, a higher SEER2 unit pays back faster than in milder climates. We typically recommend 15-17 SEER2 for most Arlington retrofits, with 18+ SEER2 making sense if you’re staying in the home long-term and the ductwork is tight.
Yes, and it’s one of our most common installations now. Arlington homes were designed for cooling dominance, which means the ductwork and electrical service are usually adequate for a heat pump’s cooling mode. The heating side needs proper sizing of auxiliary heat strips for those rare but real ice-storm events like Uri. We run a winter load calculation alongside the summer one, and we spec the auxiliary heat to handle design-day conditions without relying on emergency strip heat alone.
Manufacturer warranties cover the compressor, condenser coil, and heat exchanger against defects, but they do not cover labor for diagnosis or replacement, refrigerant leaks caused by installation error, or any component failure tied to improper sizing or unregistered equipment. The most common gap we see: the warranty was never filed. We register every system we install and give you the confirmation number in writing before we leave. Call (817) 402-2972 and ask us to walk through what’s covered and what’s not on any system you’re considering.
We install both. Ductless mini splits are a significant part of our Arlington business, especially for garage conversions, room additions, and homes where the attic ductwork is too deteriorated to salvage. Single-zone systems start in the lower half of our standard AC installation range, and multi-zone whole-house systems scale up from there. Every mini split we install is sized with the same load calculation we use for central systems. Call (817) 402-2972 for a free estimate.
Ready to replace your AC? Call Coldharbour Heating & Air at (817) 402-2972 for a free written estimate. We’ll run a full load calculation, inspect your ductwork and slab connections, and give you a fixed price before any work begins. Our 365-Day Done Right Promise means if anything isn’t right, we come back and fix it at no charge.
Written by Victor Mancini, Owner at Coldharbour Heating & Air, serving Arlington since 2003.