MESA Plumbing & HVAC
827-650-7157

Boulder County's Boiler Specialists

Boiler Repair & Replacement in Boulder, CO

No heat, a leaking boiler, or a system that won't fire? Licensed Boulder techs repair and replace gas and hot water boilers, with same-day and emergency service to get your heat back fast.

  • Same-day & emergency repair
  • Gas & hot water boilers
  • Licensed & insured
  • Upfront flat-rate pricing
Call 827-650-7157

Get a free boiler quote

Tell us what's wrong. If you have no heat, call for fastest service.

We'll respond within 1 business day. No spam, no robocalls.
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Licensed & Insured Techs 4.9★ Google Rated Same-Day & Emergency Service Gas & Hot Water Boilers Financing Available
Same-day & emergency boiler repair across Boulder County, don't spend the night without heat. Plus a military & first responder discount.

Client reviews

What Boulder County homeowners say

Hear from neighbors who called MESA when the heat went out, or when an old boiler finally gave up.

★★★★★

"Our boiler died on the coldest night of January. They came out same day, found a bad circulator, and had heat restored before bedtime. Incredible."

Mike D. - North Boulder - Emergency repair
★★★★★

"Replaced our 30-year-old boiler with a high-efficiency unit. The house heats more evenly and the gas bill dropped noticeably. Clean, professional install."

Carol W. - Louisville, CO - Boiler replacement
★★★★★

"Found water pooling under the boiler. They traced the leak, fixed it the same visit, and walked me through whether it was worth keeping. Honest crew."

Dev P. - Lafayette, CO - Leak repair

Repair, service, or replace

Heat back fast, and built to last

Boilers run a lot of Boulder County's older homes, heating through radiators, baseboard, and radiant floors. When yours won't fire, leaks water, makes noise, or stops making heat, our licensed techs diagnose the real cause, circulator, igniter, pressure, expansion tank, or heat exchanger, and give you an honest repair-versus-replace answer.

We service and repair gas and hot water boilers of every brand and age, and when a unit is past saving, we install a right-sized, high-efficiency replacement to code. No oversized guesswork, just a system matched to your home's heat load.

A dead boiler in a Colorado winter is an emergency, so we offer same-day and emergency service across the county. Call the moment you lose heat or spot a leak, the faster we're there, the warmer and safer your home stays.

View services & pricing

Why call MESA

Boiler help you can count on

Fast when the heat's out, honest when it isn't, and done to code every time.

1

Same-Day & Emergency

No heat in a Colorado winter is urgent. We prioritize no-heat and leak calls to get you warm fast.

2

Every Boiler Serviced

Gas and hot water boilers, all brands and ages, repaired, serviced, and replaced by licensed techs.

3

Honest Repair-vs-Replace

If a repair will keep you running, we'll say so. We won't push a replacement you don't need.

4

Upfront Flat Pricing

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

High-efficiency vs. older boiler

Is it time to replace?

If your boiler is aging or failing often, here's how a modern high-efficiency unit compares to an older one, an honest breakdown.

System factor High-Efficiency Condensing Boiler (Recommended) Older / Standard Boiler
EfficiencyUp to ~95%+ AFUEOften 60-80%, more fuel wasted
Heating billsLower monthly gas useHigher, especially in deep cold
Lifespan15-20+ years with serviceOften near or past end of life
ComfortModulating, even, consistent heatOn/off cycling, uneven warmth
ReliabilityNew parts & warrantyRising repair frequency & cost

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

Boulder County's boiler pros

Licensed, certified, and local

MESA is a licensed and insured Colorado contractor repairing and replacing boilers across Boulder County, gas, hot water, and high-efficiency systems.

LicensedCO Heating Contractor
InsuredBonded & Covered
A+ RatedGoogle & BBB
Boiler CertifiedFactory-Trained Installers

Pricing

Boiler 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 boiler.

Boiler Repair & Leak Fix

No heat, leaking water, won't fire, low pressure, noisy operation, or error codes, on gas and hot water boilers. Same-day and emergency service available.

  • Gas & hot water boiler repair
  • Boiler leak diagnosis & repair
  • Circulator, igniter, valve & pressure fixes
  • Same-day & emergency no-heat response
  • Honest repair-vs-replace recommendation
Service call from $99+
Get Free Quote

Pricing varies by boiler type, fuel source, system size, and required gas, venting, or piping work. Final quotes are confirmed after diagnosis or an in-home assessment. Financing available, ask when you book.

Recent work

Boiler jobs across Boulder County

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

North BoulderNo-heat emergency, same-day circulator repair.
Old Town Louisville30-year boiler replaced with high-efficiency unit.
Lafayette, COLeaking boiler, same-visit leak repair.
GunbarrelGas boiler replacement for a radiant system.
Superior, CONew boiler install for a baseboard remodel.
BroomfieldAnnual service & safety tune-up.

From a midnight no-heat call to a full high-efficiency replacement, we handle every boiler.
Gas or hot water, radiator, baseboard, or radiant, every job is installed to code and backed by a workmanship guarantee.

FAQs

Boiler repair questions, answered

Repairs start with a service call from $99, applied toward the fix. A boiler replacement typically starts around $6,500, and a new installation from about $7,500 depending on boiler type, system size, and gas or venting work. We confirm a flat quote after diagnosing your boiler, you approve it before any work begins.
Yes. Losing heat in a Colorado winter is an emergency, so we prioritize no-heat and leak calls with same-day and emergency service across Boulder County. Call us the moment your boiler fails for the fastest response.
Turn off the boiler and shut the water feed if you can reach it safely, then call us right away. Leaks can come from the pressure relief valve, a pump seal, the expansion tank, or the heat exchanger, some are simple fixes, others signal the unit is failing. We'll find the source and tell you honestly what it needs.
It depends on the boiler's age, efficiency, and repair history. A newer boiler with a single failed part is usually worth repairing. If yours is 15+ years old, breaking down repeatedly, or running at low efficiency, a high-efficiency replacement often pays for itself in lower bills. We'll give you both numbers so you can decide.
Common warning signs: no heat or weak heat, water pooling under the unit, banging or gurgling noises, frequent pressure loss, a pilot or ignition that won't stay lit, error codes, or rising gas bills. Any of these is worth a diagnosis before it leaves you without heat.
Yes. We repair, service, and replace gas and hot water boilers of every major brand and age, on radiator, baseboard, and radiant-floor systems. We handle the gas, venting, and controls each one requires.
Once a year, ideally before heating season. An annual tune-up keeps your boiler safe and efficient, maintains the manufacturer warranty, and catches small problems before they turn into a mid-winter no-heat emergency.
Yes. We offer financing through third-party partners so a replacement 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 boiler quote

Fill out the form and we'll reach out within 1 business day. If you have no heat right now, call for the fastest service.

Get a free boiler 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 Plumbing to review.
Call 827-650-7157