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Controlling Systems
Heating · AC · Electrical · Solar
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Full-Service HVAC, Electrical & Solar

Everything we do, under one roof.

From a noisy furnace at 2 a.m. to a brand-new heat pump, rooftop solar, or a code-compliant panel upgrade — Denver homes and businesses have called us since 1976. NATE-certified, ICC-certified, EPA-licensed.

Schedule Online (720) 379-2985
4.9 · 593 Google reviews
24/7 Live Answering
License LIC235711
Jump to: Heating Cooling Indoor Air Quality Electrical Solar
$89
Flat-rate diagnostic on any system
Waived if we do the work. No service call fees. No dispatch fees.
Book a Diagnostic
01 — Heating

Keep the house warm. Quietly. Efficiently.

From scorching summer days to unexpected temperature drops, we make sure your heat is ready before the next cold front. We service all major brands and we work toward energy-efficient solutions that lower long-term costs.

Controlling Systems heating install

Furnaces

Installation, repair, and maintenance on every major gas and electric furnace. $89 diagnostic waived if we do the work.

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Heat Pumps

Installation and repair on high-efficiency heat pump systems — heating and cooling in one. We help you capture every available Xcel and federal rebate.

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Boilers

Boiler repair on hydronic and steam systems. Comprehensive diagnostic report, fair pricing, and a 100% satisfaction guarantee on every job.

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Heating Tune-Ups

Seasonal maintenance that catches small problems before they turn into 2 a.m. no-heat emergencies. Regular service extends system lifespan and lowers your monthly bill.

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02 — Cooling

Comfortable, even in a Denver July.

We know Denver's climate inside and out. From central AC to ductless mini-splits, we'll diagnose the real problem, show you your options, and only replace a system when repair stops making sense.

Controlling Systems cooling install

Central A/C Repair & Install

Whether it's a refrigerant leak, a faulty thermostat, or a system that's reached the end of its life — we'll come to your home, diagnose the problem, and present personalized solutions on what to do next.

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Mini-Split Systems

Ductless mini-split installation and repair — perfect for additions, finished basements, and older homes without existing ductwork. We service every major brand.

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Thermostats & Smart Controls

Smart thermostat installation and configuration so your system runs only when it needs to. We help you choose the right control for your equipment and your habits.

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Seasonal Tune-Ups

A spring AC check-up before peak season. Catches refrigerant issues, dirty coils, and worn capacitors before they sideline you in 95° weather.

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03 — Indoor Air Quality

Cleaner, more comfortable air at home.

Denver air is dry. Allergens and dust travel right through standard filters. We design whole-home humidification, dehumidification, and purification systems that fix the problem at the source — not just where you can hear the fan.

Indoor air quality install

Whole-Home Humidifiers

Installation, repair, and maintenance. Eases dry air symptoms, protects wood floors and furniture, and improves overall comfort through Denver's long dry season.

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Dehumidifiers

Whole-home dehumidifier installation, repair, and maintenance for damp basements, crawl spaces, and homes that hold summer moisture.

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Air Duct Repair

Diagnostic and repair on leaking, disconnected, or undersized ducts. The cheapest efficiency upgrade most homes never get done.

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Filtration & Purification

Advanced media filters and UV purification systems that remove indoor pollutants so you breathe cleaner, healthier air at home.

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04 — Electrical

Licensed electricians, in-house.

Most HVAC companies sub out their electrical. We don't. Our team handles panel upgrades, EV-ready circuits, lighting, and general electrical alongside your heating and cooling work — one company, one crew, one number to call.

License: LIC235711

Electrical Repairs

Tripped breakers, faulty outlets, dead circuits, flickering lights — diagnosed and fixed by licensed electricians, not handymen.

Panel & Service Upgrades

Older Denver homes with 100A panels need more capacity for heat pumps, EVs, and induction. We size, permit, and install code-compliant upgrades.

New Installations

Outlets, dedicated circuits, light fixtures, ceiling fans, and whole-home rewiring. Quoted up front, installed up to code.

EV & Appliance Circuits

240V circuits for EV chargers, induction ranges, hot tubs, and heat-pump water heaters. Done right, the first time.

05 — Solar

Solar installations for Denver rooftops.

Pair solar with a heat pump and a heat-pump water heater and you're running the whole house on the sun. We size your system, handle the permits, install it, and walk you through the Xcel rebates and federal incentives — exactly like we did for Sarah, who saved roughly $11,000 in rebates on her hybrid heat pump upgrade.

  • Custom system sizing based on your usage and roof
  • Xcel rebate filing and federal tax credit documentation
  • Pairs cleanly with heat pumps, EV charging, and battery storage
  • In-house electricians — no third-party subs on your roof
Request a Solar Quote or call (720) 379-2985
Recent Customer Win
"Chris got me all the relevant Xcel rebates, saving me about $11,000 total."
Sarah — Hybrid heat pump & heat-pump water heater install
Why Controlling Systems

The same crew on every visit. The same standard since 1976.

When you call us, you're not just another customer — you're a neighbor, and we treat you like one.

50
Years in business
Family-owned since 1976
593
Google reviews
4.9 average rating
24/7
Live answering
No phone trees, ever
$0
Dispatch fees
No service-call fees either
N
NATE Certified Technicians
EPA
EPA Licensed & ICC Certified
100%
Satisfaction Guarantee on every job
Financing & Discounts

A new system shouldn't wait for a perfect month.

Financing available so you can get the work done now. We also offer special discounts for military personnel and senior citizens — a small thank-you for your service and your time in this community.

Ask About Financing
FAQ

Common questions

What does the $89 diagnostic actually cover? +

We come to your home, diagnose the problem with your A/C, furnace, boiler, humidifier, or air ducts, provide a comprehensive report, and present personalized solutions on what to do next. If we do the work, we waive the diagnostic charge. There are no service call fees and no dispatch fees.

Do you really answer the phone at 2 a.m.? +

Yes. 24/7 live answering, every day of the year. Real person, not a phone tree. If it's an emergency we'll dispatch a technician; if it can wait until morning we'll book you first thing.

Should I repair or replace my older system? +

Usually repair. Minor issues like a refrigerant leak or a faulty thermostat cost a fraction of a new system. Our technicians give you an honest read on the system's remaining life and the math on repair vs. replace, then let you decide.

Which brands do you service? +

All major HVAC brands. We service and install furnaces, air conditioners, heat pumps, mini-splits, boilers, humidifiers, and electrical equipment from every major manufacturer.

Do you offer financing? +

Yes. We offer financing on most installations, and special discounts for military personnel and senior citizens. Subject to credit approval — ask your technician for current terms.

Pick up the phone. We're already up.

24/7 live answering. No dispatch fees. A real Denver crew that's been at this since 1976.

(720) 379-2985 Schedule Online
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