About Monarch Home Services
OUR STORY
Three Generations.
Three Trades. One Monarch.
Monarch Home Services didn’t start in 2009. It started with a shovel and a set of
blueprints fifty years earlier.
1959 — The builder
Chuck “Charlie” DeVries founded Omega Construction Co., Inc., a general contracting
company. He built. Houses, structures, the physical work of putting something up that would
still be standing decades later — that was the whole business. He set the standard the family
has been measured against ever since: do the work right, or don’t put your name on it.
1979 — The plumber
His son Mark DeVries Sr. founded DMI Mechanical and narrowed the focus to plumbing.
Where his father built the structure, he built what ran inside it. Same standard, different
trade.
Over the course of his career, Mark Sr. completed thousands of commercial plumbing
projects across California, and he remains a deeply respected name in the state’s plumbing
and construction industries. Ask around in this trade long enough and you’ll find someone
who worked with him, or wishes they had.
2002 — Father and sons
The generations went to work side by side for the first time. Mark Sr. and his two sons — Mark Jr. and Jason — founded Advanced Mechanical Systems, Inc., adding the third trade: heating and air conditioning. Mark Jr. served as President and Jason as Vice President, both of them young and both of them learning fast. Mark Sr. provided the oversight that kept two ambitious brothers pointed in the right direction. That partnership is the hinge the whole company turns on — the moment knowledge stopped being handed down and started being built together.
2009 — Monarch Home Services
Mark DeVries Jr. founded Monarch Home Services in Bakersfield. What followed was
seventeen years of building a company one market at a time.
2022 — The next generation
Mark brought his son-in-law, David Ernst, into the business. It was the same move Mark Sr.
made in 2002: bring the next generation in, hand them real responsibility, and stay close
enough to keep them pointed in the right direction. The family has never grown this
company any other way.
2026 — Coming full circle
Monarch launched its plumbing division. It took three generations and sixty-seven years, but the trade Mark DeVries Sr. spent his career mastering is back in the family business — this time alongside heating, air conditioning, and electrical, under one name.
That's what “Three Generations. Three Trades. One Monarch.” actually means. Not a slogan. A ledger.
Today Monarch Home Services delivers heating and air conditioning, plumbing, and
electrical service across five California markets — Bakersfield, Visalia, Fresno, Paso Robles,
and Irvine — from the Central Valley to the Central Coast to Orange County.
Why the name
A monarch butterfly doesn’t complete its migration in a single lifetime. It takes multiple
generations, each one carrying the journey a little further than the last, none of them
finishing the trip alone.
That’s the actual shape of this company: a grandfather who built, a father who plumbed, two
brothers who added air and electrical, and a team now carrying it further than any of them
could have alone.
What carried forward
What’s traveled through this family isn’t a trade. The trades changed — general contracting
to plumbing to HVAC to electrical, and now back around to plumbing again. What carried
forward is the standard behind them: show up, do the work right the first time, and stand
behind it after the truck pulls away. That’s the inheritance. Everything else is equipment.
We're not finished. The next generation is already in the business, and the people who will carry it further are being trained right now — in our trucks and in this building.
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Why Choose Monarch Home Services?
When your air conditioner, heater, or water heater is out of commission, your whole day turns upside down. At Monarch Home Services, we’re transforming the service industry. We arrive on time, greet you with a smile, and solve your most challenging home comfort problems quickly and affordably. Throughout our visit, the focus is on you: Your safety, your budget, and your comfort.
Here are a few important ways Monarch stands out from the competition:
- Laser focus. Our company specializes in residential service, providing AC replacement , installation, repair , and maintenance for homes from Bakersfield to Fresno.
- Elite training. Monarch technicians undergo rigorous background checks, meet ambitious training requirements, and obtain NATE and Environmental Protection Agency certifications.
- Industry-leading affiliations. Monarch’s experienced team is affiliated with some of the largest retailers in the world, providing their customers with superior AC and water heater service.
- Market leadership. We are a Lennox® Premier Dealer, and our trained and certified climate specialists pursue excellence in every facet of their work. As an industry leader, we routinely test new technology so we can proudly offer cutting-edge products to our customers.