Veteran Owned • Since 1985

Every system in your home.
One trusted crew.

Heating, cooling, plumbing, and indoor air quality, all handled by the same Denver-metro team that's been doing it since 1985. Honest estimates, transparent pricing, no hidden fees.

4.9 / 261 Google reviews
100% satisfaction guarantee
24/7 emergency dispatch
Custom Heating, Plumbing & Air Conditioning crew on site
40+ yrs
Serving the Denver metro
Financing available
What we do

Four trades. One number. No runaround.

From the furnace in your basement to the water heater in your utility room, our techs are licensed across every system in your home. That means one call, one diagnosis, one crew.

01 — Heating

Through every Colorado cold snap.

Furnace, boiler, heat pump, thermostat — whatever heats your home, we install it, repair it, and keep it tuned. Our techs explain what's wrong before the work starts, and we keep you warm with loaner space heaters when a repair has to wait until morning.

Heating system service
01

Furnace Repair

Diagnostic and repair on gas, electric, and high-efficiency furnaces. Our techs explain the failure, walk you through your options, and adjust the system to prevent the same problem coming back.

02

Furnace Installation & Replacement

Authorized dealer for every major brand. Complimentary estimates, financing available, and one-day installs are standard. We size the unit to your home, not to whatever's in stock.

03

Furnace Maintenance

Annual tune-ups that catch small problems before they become 20-degree-night emergencies. Filter, burner, blower, and safety checks documented every visit.

04

Boiler Repair

Hydronic and steam boiler diagnostics, leak repair, and component replacement. We work on older Denver homes where the boiler has been in service for decades.

05

Boiler Installation & Replacement

Replacing a 20-plus-year-old boiler with a modern high-efficiency unit. Clean install, three-day-or-less timelines, and the space goes back together as if we were never there.

06

Boiler Maintenance

Yearly servicing to keep your boiler running efficiently and safely. We flush, inspect, and tune so you don't lose heat at the worst possible moment.

07

Heat Pump Installation

Cold-climate heat pump systems sized for Colorado winters, paired with existing or new air handlers. We size for your house and your bill, not a one-size-fits-all spec.

08

Heat Pump Repair

Refrigerant, reversing valve, defrost, and electrical diagnostics. We troubleshoot persistently — including the unique, weird ones that other companies couldn't figure out.

09

Thermostat Repair & Installation

Smart thermostats, zoned controls, and replacement of older mercury or mechanical units. Want an estimate on a new one before the next service call? Just ask the tech at the door.

01

AC Repair

Same-day diagnosis on central A/C systems — capacitors, compressors, refrigerant leaks. Some problems other companies couldn't even diagnose, we've solved in a couple of hours.

02

AC Installation & Replacement

Pair a new condenser with a matched evaporator and proper line set. Brand-new AC and furnace combos installed in a single day, with the crew cleaning up so you'd never know they'd been there.

03

AC Maintenance

Spring tune-ups that catch refrigerant loss, electrical wear, and dirty coils before summer arrives and the unit gives up under load.

04

Ductless Mini-Split Installation

Zone cooling for additions, finished basements, and older homes without ductwork. Quieter, more efficient, and sized to the actual room — not the catalog page.

05

Evaporative Cooler Installation

Swamp coolers built for Colorado's dry climate, with proper venting, water lines, and seasonal start-up and shut-down. A lower-cost alternative to central A/C for the right home.

02 — Cooling

Built for Denver summers.

Central air, ductless splits, evaporative coolers — we install and service every system that keeps your home livable from June through September. Same-day diagnosis on most repairs, and one-day installs on most replacements.

Cooling system installation
03 — Plumbing

Hot water you can count on.

Water heater replacements paired alongside boiler work, tank and tankless installations, and the everyday plumbing that ties your heating and cooling systems together. One contractor, every system.

Plumbing service
01

Water Heater Repair & Replacement

From a stuck pilot light on a tank you've had since '03 to a brand-new tankless install, we handle the lifecycle of your home's hot water. We've replaced 20-plus-year-old water heaters alongside boiler upgrades, and we'll explain the difference between what you have and what you're getting — before any work starts.

Tank & tankless
Gas, electric, and high-efficiency models
Same-day repairs
Leak, thermostat, and element diagnostics
Clean swap-outs
Old unit out, new unit in, space restored
Honest estimates
No hidden fees, financing available
01

Indoor Air Quality

Filtration, humidifiers, dehumidifiers, and whole-home air solutions sized to your HVAC system. Colorado's dry air, high pollen counts, and tight new construction can all make your home work against you — we help fix that with the right hardware at the right scale.

Filtration

Whole-home HEPA and MERV-rated systems that integrate with your existing ductwork.

Humidity

Whole-home humidifiers and dehumidifiers, calibrated to Denver's seasonal swings.

Purification

UV and electronic air cleaners installed in-line so the whole house benefits at once.

04 — Air Quality

The air you breathe at home matters.

A great HVAC system moves air. A great indoor air quality setup cleans it. We install humidifiers, dehumidifiers, filtration, and purification gear that ties directly into the heating and cooling you already have.

Indoor air quality solutions
Honesty • Value • Integrity

Why homeowners stay with us for decades.

Veteran-owned, Denver-based, and built on the kind of work that earns repeat business — not the kind that earns a one-off invoice.

4.9
261 Google reviews

Real Denver-metro homeowners, not paid testimonials.

40+
Years in business

Dwane Haskins launched the company in 1985 and still runs it.

21
Cities served

Aurora and Denver offices covering the full Denver metro.

24/7
Emergency dispatch

Loaner space heaters when an overnight repair has to wait.

Veteran owned

Honesty, value, and integrity aren't slogans — they're how we run the company.

100% satisfaction guarantee

If the job isn't right, we make it right. Every project, every visit, every service.

Complimentary estimates

Free, upfront estimates on every project. No hidden fees, financing available.

Real Google reviews

What the work looks like from the customer's side.

4.9
261 verified Google reviews

"Beyond impressed with this company! From consult to install, they were punctual, professional, and thorough. We had both our AC and furnace replaced, and they got it all done in one day! Our old unit was 17 years old, and while installing the new one, Dwane explained the differences between the old and new units and the upgrades we now have to look forward to."

Lorna Kintzle
AC & Furnace replacement
6 months ago

"Dwane and his crew are professional, courteous, and really know what they are working with. We had a 20+ year old boiler and hot water heater replaced. The work they did was clean, and the whole team from office staff to apprentice were exceptionally professional and friendly. They were also easy to have in the house for 3 days and left the space clean and put back together."

Heather Manone
Boiler & water heater replacement
3 months ago

"My furnace stopped working on the coldest night of the week (20°). Custom got space heaters to us to keep us going until they could send a tech in the morning. Benito was our tech. He was fabulous. The failure was a unique/weird problem. He was persistent in determining the issue. Once identified, he checked all components in the furnace to ensure there was no damage."

How it works

Four steps. Zero surprises.

Whether it's a same-day repair or a multi-day install, every job runs through the same straight-line process. You always know what's happening next.

1

Call or request online

Dispatch answers — including overnight when it's a true emergency. We confirm your address, system, and time window.

2

Diagnosis & estimate

A licensed tech assesses the system, explains the failure, and walks you through your options. The estimate is free.

3

Approved repair or install

You decide what to move forward with. Financing is available on most replacements, so a failed system doesn't have to mean a lump-sum hit.

4

Clean handoff

The crew tests the system, walks you through how it works, and cleans up. We leave the space the way we found it — or better.

Ready when you are

Get a free estimate on any service.

Talk to dispatch in Aurora or Denver. Same-day appointments for most repairs, complimentary estimates on every install, financing available on most replacements.

This is a draft services page for Custom Heating, Plumbing & Air Conditioning Services — built by Glyph Sites.