Castle Rock, Colorado · Licensed & Insured

Commercial-Grade
Plumbing
For Your Home

23 years building Colorado's hospitals, airports, and high-rises. Now that same precision and reliability — for your family.

Get a Free Quote ☎ (303) 957-6200
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23+
Years Experience
100%
Licensed & Insured
Flat
Rate Pricing
4
Front Range Cities
Professional plumber at work
2020 Founded
Our Story

Built for the Biggest Projects.
Now Here for Yours.

For over two decades, Clayton Allen honed his craft on the most demanding plumbing and heating projects in Colorado — hospitals, water treatment plants, international airports, and downtown high-rises.

When the pandemic hit in 2020, Clayton made a decision: take everything he'd learned at commercial scale and build a family business that brings that same level of quality to residential homes. The result is Allen & Sons — where your home gets treated like a $50 million build.

  • Fully licensed and insured in the state of Colorado
  • Transparent flat-rate pricing — no surprises, ever
  • Works with homeowners, contractors, and DIY enthusiasts
  • Quick estimates and same-week scheduling
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What We Do

Full-Scope Plumbing
& Heating Services

From a dripping faucet to a ground-up build, we bring commercial-grade precision to every job — residential or contractor.

Plumbing Repair

Leaks, pipe replacements, water heaters, drain clearing, and emergency repairs handled with precision and speed.

HVAC Systems

Heating, ventilation, and cooling — installation, maintenance, and repair for residential and commercial properties.

Home Remodeling

Kitchen and bathroom remodels done right the first time — full plumbing and HVAC rough-in, coordination, and finish.

New Construction

Ground-up plumbing and HVAC for new builds. We work with contractors on permitting, design, and full installation.

Water Treatment

Whole-home filtration, softeners, and water quality systems — designed and installed to commercial standards.

Fixture Replacement

Faucets, toilets, sinks, showers — fast, clean fixture upgrades with zero mess and no surprise charges.

"We built hospitals and airports. We know what uncompromising quality looks like — and that's exactly what your home deserves."
— Clayton Allen, Founder
Why Allen & Sons

The Standard You Deserve

Most plumbers are residential only. We're not. Our background is the biggest, most complex projects in Colorado — now at your door.

Commercial-Grade Expertise

23+ years building Colorado's most complex structures. Your home benefits from the same knowledge, the same precision, the same accountability.

Flat Rate Pricing

We quote it. We do it. You pay what we said — full stop. No add-ons, no "while we were in there" surprises. Transparent pricing is how we build trust.

Licensed & Insured

Fully licensed in Colorado. Fully insured. You get the protection of a commercial contractor with the personal service of a family-owned business.

Where We Work

Proudly Serving the Front Range

We cover the entire Front Range corridor — from Denver south through the suburbs and down to Colorado Springs.

  • Denver
  • Castle Rock
  • Littleton
  • Colorado Springs
  • Parker
  • Highlands Ranch
  • Lone Tree
  • Englewood

Not sure if we cover your area? Call us at (303) 957-6200 and we'll let you know within minutes.

Modern bathroom fixtures
Get in Touch

Let's Talk About Your Project

Free quotes. Fast responses. Flat rates. Whether it's an emergency repair or a full build — we're ready.

Phone (303) 957-6200
Email admin@allensonsplumbing.com
Address 4166 South Fern St
Castle Rock, CO 80104

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