Best air conditioning contractors in Shah Alam

★★★★★4.9 (158 reviews)score 92/100

Top composite score, backed by a 4.9 rating across 158 reviews and no recent complaints. Reviewers say it fixed faults other contractors left unresolved, with on-site diagnosis and honest pricing. Covers servicing, chemical cleaning, gas top-ups, drainage repairs and installation.

• Transparent on-site diagnosis
• Chemical jet-cleaning system
• Follow-up check after the job
• On-time, neat technicians

Services: aircon servicing maintenance, aircon installation, 24 7 emergency aircon, aircon repair

★★★★★5 (130 reviews)score 92/100

A 5.0 rating from 130 reviews, with quick same-day or next-day response. Technicians explain problems plainly and reviewers report no hidden charges. It also takes on fiddly jobs like condo gas refills.

• Quick WhatsApp booking
• Thorough gas top-ups and blower cleaning
• No hidden fees
• Polite, tidy technicians

Services: aircon installation, aircon repair, residential home aircon, 24 7 emergency aircon

★★★★★5 (125 reviews)score 92/100

Rated 5.0 from 125 reviews, with praise for finding gas leaks and faults other technicians missed. Amad works seven days a week including public holidays. Feedback has no one or two-star ratings.

• Detects gas leaks others miss
• Works public holidays
• Leaves work area clean
• Honest, fair pricing

Watch out: Appears to be a one-man operation, so availability may depend on him.

Services: aircon servicing maintenance, aircon installation, 24 7 emergency aircon, aircon repair

★★★★★4.8 (160 reviews)score 91/100

A 4.8 from 160 reviews, the largest review base here. Technicians send WhatsApp updates through each job and avoid pushing replacements. Long-term clients return for fair prices and follow-through.

• Punctual arrival
• Step-by-step WhatsApp updates
• No hard-sell tactics
• Cleaning with visible results

Services: aircon installation, aircon servicing maintenance, 24 7 emergency aircon, aircon repair

★★★★★4.9 (119 reviews)score 87/100

Scores 4.9 from 119 reviews. Most customers get installation or repair done the same day, and staff give honest repair-or-replace advice. Free follow-up visits are a plus.

• Same-day installation and repair
• Free follow-up visits
• No pushy upsells
• Clean workmanship

Watch out: One reviewer reported hammer marks and oil stains on a wall after installation.

Services: residential home aircon, commercial industrial aircon, aircon installation, aircon repair

★★★★★5 (56 reviews)score 86/100

A 5.0 from 56 reviews, fewer than the leaders but with no complaints. Technicians reportedly arrive within a couple of hours and fixed recurring leaks other contractors missed. Covers servicing, repairs and installation across Shah Alam and Klang Valley.

• Arrives within 1-2 hours
• Fixes recurring leaks
• Named skilled staff
• Occasional 1-month warranty

Services: aircon installation, 24 7 emergency aircon, aircon repair, residential home aircon

★★★★★4.8 (113 reviews)score 84/100

Holds a 4.8 from 113 reviews, with praise for smooth booking, punctual visits and tidy installation. Prices are seen as fair and open to negotiation.

• Punctual technicians
• Clean, neat installation
• Fair, negotiable prices
• Clear communication

Watch out: One customer was charged the full service fee to diagnose a leak two months after a chemical service.

Services: residential home aircon, aircon installation, aircon repair

★★★★★4.7 (66 reviews)score 84/100

A 4.7 from 66 reviews. Staff cover floors, contain mess and explain work before starting. Reviewers say units come out colder and quieter, at fair prices for single and multi-unit jobs.

• Punctual, fast response
• No mess left behind
• Consent sought before work
• Noticeably colder after service

Services: aircon installation, aircon repair, 24 7 emergency aircon, residential home aircon

★★★★★5 (44 reviews)score 81/100

A 5.0 from 44 reviews with no complaints. Reviewers describe early arrivals and honest advice without upselling, and some have used it for a decade or more. Handles multi-unit servicing and insulation replacement.

• Arrives early
• Honest advice, no upselling
• 10+ year customer relationships
• Multi-unit servicing

Watch out: Review base is smaller than the top few.

Services: residential home aircon, aircon installation, aircon repair

★★★★★4.8 (37 reviews)score 78/100

A 4.8 from 37 reviews, operating in Shah Alam since 2009. Reviewers report faster cooling, better airflow and drainage leaks resolved, with technicians who explain the work.

• 15+ years in Shah Alam
• Fixes weak airflow and drainage leaks
• On-time, explains work
• Leaves no mess

Watch out: Some reviewers found phone lines hard to reach, and one said the website WhatsApp link went to another company.

Services: aircon servicing maintenance, aircon installation, aircon repair, residential home aircon

★★★★★4.9 (36 reviews)score 78/100

A 4.9 from 36 reviews, though confidence is low so treat the score with care. Reviewers praise punctual visits, neat installation and maintenance and energy-saving tips.

• Punctual
• Neat installation and servicing
• Negotiable, fair pricing
• Shares maintenance advice

Watch out: Lower-confidence score given the modest review count.

Services: aircon servicing maintenance, aircon installation, 24 7 emergency aircon, aircon repair

★★★★★4.9 (17 reviews)score 74/100

A 4.9 from only 17 reviews, so confidence is medium. Reviewers cite fast booking, careful diagnostics by technician Heri and no surprise charges. It publishes tiered rates.

• Same-day or quick booking
• Published tiered pricing
• Careful root-cause diagnosis
• Friendly, tidy technicians

Watch out: Thin review base, and the 18+ years operating history is a claim, not verified.

Services: aircon installation, aircon repair, residential home aircon, commercial industrial aircon

★★★★★4.5 (70 reviews)score 73/100

A 4.5 from 70 reviews, the lowest rating of the high-confidence group. Most visits are quick and fairly priced, and regulars get discounts. It also does car battery work.

• Quick aircon and battery service
• Friendly, non-pushy staff
• Repeat-customer discounts
• Clear explanations

Watch out: A few one-star reviews cite overcharging, cable damage and unnecessary upselling. Get a second opinion on big repairs.

Services: aircon installation, aircon repair, residential home aircon

★★★★★5 (19 reviews)score 72/100

Every recent review of its 19 is five stars, at a 5.0 rating. Owner Uncle Winson has decades of experience, and customers report cooler airflow and lower electricity bills. Handles servicing, chemical washes and new installs.

• Decades of experience
• Fast response
• Fair pricing
• Patient explanations

Watch out: Only 19 reviews, and recency is weaker than most on this list.

Services: aircon installation, residential home aircon, commercial industrial aircon, 24 7 emergency aircon

★★★★★4.9 (14 reviews)score 71/100

A 4.9 from 14 reviews, so confidence is medium. Reviewers like the chemical-free bio-green approach, transparent prices and clear aftercare tips, with noticeable cooling gains.

• Bio-green chemical-free servicing
• Punctual, fast response
• Transparent pricing
• Explains and gives aftercare tips

Watch out: Smallest review count on the list.

Services: aircon servicing maintenance, aircon installation, aircon repair, residential home aircon