16 AC Replacement Contractors in Fairfax, VA

4.5 avg rating
3,426 total reviews6 offer 24/7 service
Need emergency service? 23 HVAC providers in Fairfax offer 24/7 availability

Top-Rated AC Replacement Contractors in Fairfax

#1

OHA HVAC, Plumbing, Chimney & Fireplaces

4.9(1,978 reviews)
24/7 Highly Rated

Every reviewer awarded five stars, with four named technicians mentioned across five reviews: Matt for fireplace persistence, Bryan for efficient…

2800 Juniper St #10, Fairfax, VA 22031
Call
#2

B&B Air Conditioning & Heating Service

4.9(332 reviews)
Highly Rated

Five of six highlighted reviewers award perfect 5-star ratings, with consistent praise for specific technicians Adrian, Ernesto, Eder, and Mr. Gu. Reviewers…

2816 Dorr Ave, Fairfax, VA 22031
Call
#3

ABD Air Duct and Vent Cleaning

5.0(279 reviews)
24/7 Highly Rated

With a 5.0-star average across 279 reviews, ABD Air Duct and Vent Cleaning demonstrates strong overall customer satisfaction. Four of five detailed reviews…

11166 Fairfax Blvd Suite 500, Fairfax, VA 22030
Call

All AC Replacement Contractors (16 total)

TJK Air Cleaning

4.6(197)

Six verified reviews uniformly award 5 stars, citing specific technician expertise (Parviz, Max, Andy, Paul)…

2800 Juniper St Suite 3, Fairfax, VA 22031
Call

Same Day Appliance Repair

4.9(131)
Highly Rated

A dozen reviews consistently praise same-day response capability, transparent diagnostics without upselling,…

9726 Main St, Fairfax, VA 22031
Call

Wadi Electric - Electrician Fairfax VA

4.7(137)
24/7

Four of four positive reviews specifically name individual technicians who performed the work and describe…

3720 Lauriston Pl, Fairfax, VA 22031
Call

North American GeoThermal

4.8(115)
Highly Rated

All six accessible reviewers award five stars, with customers specifically praising technicians Will and…

11530 Valley Rd, Fairfax, VA 22033
Call

EV-Electric Services

5.0(80)
24/7

80 reviewers collectively award perfect 5-star ratings, with multiple customers emphasizing the technician's…

9488 Fairfax Blvd, Fairfax, VA 22031
Call

HVAC EXPERTS

4.9(68)

All 68 reviews award 5 stars, with customers consistently praising David's honest estimates, on-time…

11350 Random Hills Rd Suite 800, Fairfax, VA 22030
Call

Top AC Repairs

4.4(41)

Three of four detailed reviews award five stars, with specific praise for same-day diagnostics on long-broken…

5350 Anchor Ct, Fairfax, VA 22032
Call

Fairfax HVAC & Cooling Solutions

5.0(19)
24/7

All 19 reviews award 5 stars, with multiple reviewers emphasizing fair pricing over aggressive upselling.…

11110 Byrd Dr, Fairfax, VA 22030
Call

Keller hvac service

5.0(17)

All eight reviewed clients awarded 5 stars, with four specifically mentioning same-day or emergency response…

13147 Pavilion Ln, Fairfax, VA 22033
Call

States Solutions

5.0(11)

All 11 reviews award 5 stars, with multiple homeowners specifically praising reasonable pricing relative to…

8280 Willow Oaks Corporate Dr Suite 600, Fairfax, VA 22031
Call

Bishop Equipment Co. Inc.

4.1(13)

Three reviewers share detailed accounts: two award 5 stars citing successful commercial installs and…

2825 Dorr Ave, Fairfax, VA 22031
Call

Home Services at The Home Depot

4.6(8)

Six of eight reviews award five stars, with specific praise directed at staff members who provided patient,…

12275 Price Clb Plz, Fairfax, VA 22030
Call

Shreve/McGonegal

0.0
24/7

No customer reviews were available at the time of this listing enrichment, making reviewer sentiment analysis…

10304 Eaton Pl Suite 100, Fairfax, VA 22030
Call

AC Replacement Costs in Fairfax

Replacement costs for aging systems in Fairfax. If repair cost exceeds 50% of replacement, replacement is usually more economical.

ServiceLowAverageHigh
Central AC (3-ton, basic)
$5,500$8,000$11,000
Central AC (4-ton, mid-efficiency)
$7,500$10,500$14,000
Central AC (5-ton, high-efficiency)
$9,500$12,500$16,000
Full HVAC system (AC + furnace)
$11,590$13,430$14,100
Plus ductwork replacement
If existing ducts are aged/leaking
$2,100$3,000$4,000
Repair cost threshold50% rule: if repair > 50% of replacement, replace

Prices reflect humid subtropical metro averages compiled from published industry cost guides, contractor surveys, and regional labor data. Last updated: April 2026.

AC Replacement in Fairfax, VA: What to Expect

Fairfax experiences the kind of summer heat that makes reliable air conditioning essential rather than optional. Highs climb into the upper 80s along the Potomac, and Northern Virginia's notorious humidity pushes cooling systems to work harder than their specifications might suggest. The Washington metro area sees sixteen HVAC professionals serving Fairfax County, collectively earning a 4.5 average rating across more than three thousand reviews. When an aging system fails during a July heat wave, residents understand why AC Replacement in Fairfax ranks among the most common service calls in the region.

Pricing reflects both system capacity and efficiency design. A basic 3-ton central AC runs $5500 to $11000, while mid-efficiency 4-ton units span $7500 to $14000. High-efficiency 5-ton systems reach $9500 to $16000. In Virginia, legitimate contractors carry either a Class A, B, or C license with an HVA specialty designation from the Department of Professional and Occupational Regulation, confirming they meet state trade standards. These figures represent full installation costs including labor, permitting, and equipment, though final bids vary with ductwork condition and electrical upgrades.

Service quality in this market often traces to individual technicians rather than company names alone. B&B Air Conditioning draws repeated mention of Adrian, Ernesto, Eder, and Mr. Gu across multiple five-star reviews, with clients highlighting long-term relationships spanning years. ABD Air Duct and Vent Cleaning maintains a perfect 5.0 rating across nearly 280 reviews, with detailed feedback consistently naming specific technicians. For homeowners evaluating replacements, these documented technician references offer more practical guidance than broad company ratings.

Frequently Asked Questions

AC replacement in Fairfax runs $2,100-$16,000 depending on system size and efficiency. A 3-ton basic central AC costs $5,500-$11,000 installed, a 4-ton mid-efficiency system $7,500-$14,000, and a 5-ton high-efficiency unit $9,500-$16,000. Full HVAC replacement (AC + furnace combined) averages $11,590-$14,100.

All HVAC Contractors in Fairfax, VA

Complete directory of 60 contractors — browse alphabetically

A–Z