MESA Plumbing & HVAC
Call 827-650-7157

Boulder County's AC & HVAC Repair Specialists

AC Repair & Installation in Boulder, CO

AC not cooling, blowing warm, or down completely? Licensed Boulder techs repair and install air conditioning and HVAC systems of every brand, with same-day and emergency service to beat the summer heat.

  • Same-day & emergency repair
  • All AC & HVAC brands
  • Licensed & insured
  • Upfront flat-rate pricing
Call 827-650-7157

Get a free AC repair quote

Tell us what's wrong. For no-cooling emergencies, call for fastest service.

We'll respond within 1 business day. No spam, no robocalls.
Thanks. Your request is ready for MESA to review.
Licensed & Insured HVAC 4.9★ Google Rated Same-Day & Emergency Service All AC & HVAC Brands Financing Available
Same-day & emergency AC repair across Boulder County, don't sweat out the summer. Plus a military & first responder discount.

Client reviews

What Boulder County homeowners say

Hear from neighbors who called MESA when the AC quit, or when it was time for a new system.

★★★★★

"AC died during the July heat wave. Called in the morning, tech found a failed capacitor, and we were cooling again by lunch. Fast and fair."

Brian K. - North Boulder - Emergency AC repair
★★★★★

"Added central air to our older home that never had it. Clean install, tidy crew, and the whole house is finally comfortable. Great value."

Lena M. - Louisville, CO - Central AC install
★★★★★

"Compressor was struggling and another company said replace the whole unit. MESA diagnosed it honestly, did the repair, and saved us thousands."

Raj S. - Lafayette, CO - Compressor repair

Repair, service, or install

Cool, comfortable, and back up fast

When your AC isn't cooling, blowing warm, leaking, tripping the breaker, or won't turn on, our licensed techs find the real cause, low refrigerant, a failed capacitor or contactor, a struggling compressor, a frozen coil, or a bad fan motor, and fix it right.

Need more than a repair? We install and replace central AC systems, sized to your home so it cools evenly and runs efficiently, not the oversized guesswork that drives up bills and wears out fast.

A dead AC in a Colorado summer is miserable, so we offer same-day and emergency service across the county. Call the moment your system quits, the faster we're there, the sooner you're comfortable again.

View services & pricing

Why call MESA

AC help you can count on

Fast when it's sweltering, honest when it isn't, and done right every time.

1

Same-Day & Emergency

No cooling in a heat wave is urgent. We prioritize no-cool calls to get your home comfortable fast.

2

All Brands & Systems

Central air, AC units, and HVAC systems of every major brand, repaired, serviced, and installed.

3

Honest Repair-vs-Replace

If a repair will keep you cool, we'll say so. We won't push a new system you don't need.

4

Upfront Flat Pricing

You approve the quote before any work starts, no surprise charges, ever.

New high-efficiency vs. older AC

Repair or replace your AC?

If your unit is aging or failing often, here's how a new high-efficiency AC compares to limping an old one along, an honest breakdown.

FactorNew High-Efficiency ACOlder / Failing AC Unit
EfficiencyHigh SEER2, cools for lessLow efficiency, higher summer bills
ReliabilityNew parts & full warrantyRepairs getting more frequent
CoolingEven, consistent comfortWeak spots, struggles in heat
RefrigerantCurrent, supported refrigerantOlder units may use phased-out types
Cost over timeLower bills offset the installRepair bills add up fast

Replacing isn't always the answer, a newer AC with a single failed part is usually worth repairing. We'll weigh your unit's age, efficiency, and repair history, then give you the honest call instead of defaulting to the bigger ticket.

Boulder County's AC & HVAC pros

Licensed, certified, and local

MESA is a licensed and insured Colorado HVAC contractor repairing and installing air conditioning and HVAC systems across Boulder County, all brands, all ages.

LicensedCO HVAC Contractor
NATECertified Technicians
A+ RatedGoogle & BBB
EPA CertifiedRefrigerant-Handling Techs

Pricing

AC & HVAC services & pricing

Click a service to see what's included. All prices start at the listed amount, your final quote is confirmed after we diagnose or assess your system.

AC Repair

Not cooling, blowing warm, leaking, tripping the breaker, or won't start, on central air and AC units of every brand. Same-day and emergency service available.

  • Diagnosis of any AC or central air unit
  • Refrigerant, capacitor, contactor & fan repairs
  • AC compressor & frozen-coil repair
  • Same-day & emergency no-cool response
  • Honest repair-vs-replace recommendation
Service call from $99+
Get Free Quote

Pricing varies by system type, brand, capacity, and required electrical or refrigerant work. Final quotes are confirmed after diagnosis or an in-home assessment. Financing available, ask when you book.

Recent work

AC & HVAC jobs across Boulder County

A sample of repairs and installs in Boulder, Louisville, Lafayette, Superior, Gunbarrel, and Broomfield.

North BoulderNo-cool emergency, same-day capacitor repair.
Old Town LouisvilleCentral air added to a home without AC.
Lafayette, COAC compressor repair, saved a full replacement.
GunbarrelHigh-efficiency central AC replacement.
Superior, COWhole-system HVAC repair & airflow fix.
BroomfieldPre-season AC tune-up & coil clean.

From a heat-wave breakdown to a full central air install, we handle every AC & HVAC system.
Every brand, every age, diagnosed honestly and repaired or installed to do the job right.

FAQs

AC repair questions, answered

Repairs start with a service call from $99, applied toward the fix. Common repairs like a capacitor or contactor are on the lower end; compressor or refrigerant work costs more. We confirm a flat quote after diagnosing your system, you approve it before any work begins.
Yes. Losing cooling in a Colorado heat wave is a priority, so we offer same-day and emergency AC and HVAC service across Boulder County. Call us the moment your system quits for the fastest response.
Common causes are low refrigerant from a leak, a failed capacitor or contactor, a struggling compressor, a frozen evaporator coil, a dirty filter restricting airflow, or a faulty thermostat. We diagnose the exact cause before quoting so you're not guessing.
It depends on the unit's age, efficiency, and repair history. A newer AC with a single failed part is usually worth repairing. If yours is 12-15+ years old, needing frequent repairs, or running an outdated refrigerant, a high-efficiency replacement often pays back in lower bills.
A straightforward replacement is usually a one-day job. Adding central air to a home that's never had it, or work that needs new ductwork or electrical, can take longer. We'll give you a clear timeline with your quote.
Yes. We repair, service, and install central air, AC units, and full HVAC systems of every major brand and age. Our techs are EPA-certified to handle refrigerant, so the job is done safely and to code.
Once a year, ideally in spring before cooling season. A pre-season tune-up keeps efficiency up, catches small problems before they cause a mid-summer breakdown, and helps maintain your manufacturer warranty.
Yes. We offer financing through third-party partners so a new system doesn't have to be paid all at once, plus an active-duty military and first responder discount. Just mention it when you book.

Schedule service

Get your free AC repair quote

Fill out the form and we'll reach out within 1 business day. For no-cooling emergencies, call for the fastest service.

Get a free AC repair quote

Tell us what's wrong. We'll call back within 1 business day.

We'll respond within 1 business day. No spam, no unwanted calls.
Thanks. Your request is ready for MESA to review.
Call 827-650-7157