7 AC Replacement Contractors in Ellicott City, MD

4.9 avg rating
496 total reviews2 offer 24/7 service
Need emergency service? 4 HVAC providers in Ellicott City offer 24/7 availability

Top-Rated AC Replacement Contractors in Ellicott City

#1

Buric Heating and Air Conditioning

4.9(372 reviews)
Highly Rated

Every reviewer awarded 5 stars, with recurring praise for response speed during emergencies, transparent pricing, and post-installation follow-through. Three…

4301 Temora Manor Ln, Ellicott City, MD 21042
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#2

No -Frost Air Conditioning & Heating, LLC

4.7(80 reviews)

Five detailed reviews yield a perfect five-star average with zero negative feedback. Four reviewers emphasize multi-year or decade-spanning relationships, and…

4990 Waterloo Rd, Ellicott City, MD 21043
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#3

Kingdom

5.0(25 reviews)

Twenty-five verified reviews award a perfect five-star rating, with multiple reviewers highlighting honest pricing, thorough diagnostics, and fairness in…

6081 Otterbein Ln, Ellicott City, MD 21043
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All AC Replacement Contractors (7 total)

Heating & Air Conditioning

5.0(10)

Eight of eight reviewers award five stars, with three specifically mentioning early arrival times and two…

9059 Frederick Rd, Ellicott City, MD 21042
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All American Heating & Cooling, Inc.

4.8(6)
24/7

Four of four published reviews carry five-star ratings, with client stories specifically mentioning heat pump…

10690 Clarksville Pike, Ellicott City, MD 21042
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garagedoorsrepairellicottcitymd

5.0(2)
24/7

Both reviews award five stars, with clients specifically mentioning on-time arrival and knowledgeable…

4380 Montgomery Rd, Ellicott City, MD 21043
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A C Tech LLC

5.0(1)

The single five-star review submitted by a verified customer specifically names technician Siju Sebastian and…

2710 N Ridge Rd, Ellicott City, MD 21043
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AC Replacement Costs in Ellicott City

Replacement costs for aging systems in Ellicott City. 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 Ellicott City, MD: What to Expect

Living in the greater Baltimore metro means coping with sticky summer heat pushing toward eighty-eight degrees alongside a damp coastal climate that forces air conditioners to work harder than simple temperature readings would suggest. Winters here regularly dip into the twenties, and that freeze-thaw cycle puts real strain on mechanical cooling systems. For homeowners facing a failed compressor or a system wheezing through August, prompt ac replacement Ellicott City becomes less a convenience and more a survival decision. Seven qualified HVAC contractors serve this community, and their collective work speaks for itself: a 4.9 average rating drawn from nearly five hundred verified reviews reflects a commitment that neighbors trust.

Those dollars buy a properly sized system matched to Maryland's humidity load and winter severity. A basic 3-ton central AC runs roughly $5500 to $11000, while mid-efficiency 4-ton units settle between $7500 and $14000. Homeowners wanting the highest SEER ratings for maximum dehumidification pay in the range of $9500 to $16000. What drives those numbers comes down to compressor type, installer experience, and whether the job requires new refrigerant lines or electrical upgrades. Every legitimate contractor working in Maryland carries a Master HVACR license from the state labor board, a credential that confirms both technical training and insurance compliance, protecting homeowners from liability if something goes wrong during installation.

Reading through local review after local review, certain themes repeat. The technicians over at Buric earned five stars across every single submission, with clients specifically naming team members and praising how quickly they showed up when someone needed emergency help. Buric clients also consistently mention clear pricing before any work begins and a check-in call after the job finishes, details that build real trust. Kingdom holds a perfect five rating across twenty-five reviews, callers pointing to honest assessments of what was actually needed versus unnecessary upgrades, plus a straightforward approach to warranty questions. Those patterns matter more than any advertised guarantee.

Frequently Asked Questions

AC replacement in Ellicott City 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.