21 AC Installation Contractors in Gaithersburg, MD
Top-Rated AC Installation Contractors in Gaithersburg
GAC Services
“Four reviewers specifically name individual technicians (Chun, Kevin Bateman, Edwin Sanchez) and describe skills ranging from furnace diagnostics to electrical…”
Presidential, Inc.
“Nearly all 1,793 reviewers award 5 stars, with technicians Rinard, Jose, Richard, Walter, Juan, and Gina mentioned by name for professional conduct. Positive…”
All AC Installation Contractors (21 total)
James A. Wheat & Sons, Inc.
“Over 99% of reviewers assign 5-star ratings, with only one 1-star critique in the dataset mentioning pricing…”
Rod Miller Company
“Every one of 639 reviews rates 5 stars, with six reviewers specifically mentioning technicians by name.…”
Cool Breeze Plumbing, Heating & A/C
“Eight of ten sampled reviewers describe resolution of problems that persisted after attempts by other…”
Metro Services HVAC
“All featured reviewers awarded 5-star ratings, with both customer testimonials naming technicians Mike and…”
Atlantic Coastal Cooling and Heating, Inc. (ACCH)
“Five-star ratings dominate the 302 reviews, with technicians Jamie, Billy, and Hank named repeatedly across…”
United Air Temp
“Across 289 reviews, technicians earn consistent praise for arriving on time, explaining repairs clearly, and…”
Sichinava Heating and Air Conditioning
“Every reviewer highlights responsiveness as a defining strength, with three customers specifically noting…”
Mannix Heating and Cooling- Gaithersburg
“One hundred sixty-six reviews yield a 4.9-star average, with all sampled five-star ratings detailing…”
Hecox Home Services LLC
“Four reviewers specifically mention emergency response scenarios involving same-day or same-afternoon…”
Smock Heating & Air
“Every review is 5 stars, with multiple customers emphasizing same-day response and thorough technical…”
ADI Heating & Air Conditioning, LLC
“Four of five detailed reviews specifically name Ronen as the technician providing service, with three…”
Mallick Mechanical Services
“Three of four detailed reviews mention same-day or next-day arrival despite scheduling obstacles like severe…”
Germantown Heating & Air Conditioning
“Three featured reviews yield mixed results: two five-star ratings praise diagnostic skill, same-day…”
Gaithersburg AC and Heating - AMS
“Six of seven reviews award five stars, with three clients specifically praising same-day response times…”
AAA Residential Services Ltd, Heating & Air Conditioning
“All 4 published reviews award a perfect 5-star rating, indicating strong customer satisfaction. Homeowners…”
Heating & Air Conditioning
“Four of six reviews award five stars, with two reviewers specifically naming individual technicians and…”
Diversified HVAC Services
“Of four detailed negative reviews, three cite billing disputes including unexpected weekend surcharges and…”
AC Installation Costs in Gaithersburg
New central AC installation costs in Gaithersburg, by system type and brand.
| Service | Low | Average | High |
|---|---|---|---|
Window unit | $150 | $350 | $700 |
Ductless mini-split (single zone) | $2,000 | $4,500 | $8,000 |
Central AC replacement (existing ducts) | $3,500 | $6,500 | $12,000 |
Central AC new install (with ductwork) | $7,000 | $12,000 | $20,000 |
Carrier (residential) | $3,800 | $6,200 | $10,500 |
Trane (residential) | $5,000 | $8,800 | $13,600 |
Lennox (residential) | $3,500 | $6,500 | $12,000 |
Rheem (residential) | $3,200 | $5,500 | $9,000 |
Prices reflect humid subtropical metro averages compiled from published industry cost guides, contractor surveys, and regional labor data. Last updated: April 2026.
AC Installation in Gaithersburg, MD: What to Expect
Summer temperatures in the Baltimore metro area regularly reach 88 F with humidity that makes indoor air feel heavier than the thermometer suggests, and winters drop to around 27 F near the Chesapeake Bay. This climate pushes homes toward reliable cooling and heating year round. Homeowners in Gaithersburg have access to 21 licensed AC installation contractors maintaining a 4.7 average rating across more than 15,000 customer reviews.
The cost of installing cooling equipment reflects the system's complexity. A window unit runs $150 to $700, a ductless mini split for a single zone costs $2000 to $8000, and central AC replacement using existing ductwork ranges from $3500 to $12000. Every legitimate contractor in Maryland must hold a Master HVACR License from the state labor board, verifying proper training and regulatory compliance.
Reviewers repeatedly mention specific technicians by name. GAC Services receives praise for technicians Chun, Kevin Bateman, and Edwin Sanchez, with customers noting skills in furnace diagnostics and electrical repairs. Presidential Inc. earns nearly universal five star ratings, with technicians Rinard, Jose, Richard, Walter, Juan, and Gina cited for professionalism and same day emergency response. Parker Pearce Service Experts draws consistent mentions of rapid arrival during temperature crises, including one account of restoring cooling for an infant within hours during a summer heat burst.