What are the company's certifications and qualifications?

Klaus & Sons employs highly-trained and product-knowledgeable technicians who undergo ongoing education to ensure they adhere to the latest industry practices and standards. The company is committed to providing expert, professional service on every job.

Does Klaus & Sons offer financing options?

Yes, Klaus & Sons offers financing options to help customers manage the cost of their plumbing, heating, and air conditioning projects and repairs.

What is the company's service area?

Klaus & Sons services Montclair, CA as well as the surrounding cities of Chino Hills, Ontario, Rancho Cucamonga, and Upland, among others in the Inland Empire region.

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Voyager DBDeep data on millions of local businesses, with verified decision-makers to reveal.Contact ResearchHand-built prospect lists from human researchers, delivered in 24 hours.People SearchFind owners and decision-makers by job title, seniority and department.Chrome ExtensionColdlytics in your browser - prospect any business as you browse the web.IntegrationsInstantly, Smartlead, lemlist, Clay, HighLevel, plus Claude and ChatGPT over MCP.

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Klaus & Sons Plumbing, Heating & Air Conditioning

$2.4M revenue • 12 employees • 5623 E Arrow Hwy, Montclair, CA, 91763, United States

Last Updated Oct 23, 2026

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Company Overview

Company Name

Klaus & Sons Plumbing, Heating & Air Conditioning

Address

5623 E Arrow Hwy, Montclair, CA, 91763, United States

Website

klausandsons.com

Phone

(909) 982-5698

Approx. Annual Revenue

$2.4M

Employees

Established

2001

Google Reviews

4.9 (992 reviews)

Google Business Category

HVAC contractor

About Klaus & Sons Plumbing, Heating & Air Conditioning

Klaus & Sons is a family-owned plumbing, heating, and air conditioning company serving the Montclair, CA area. They offer 24/7 emergency service and a wide range of residential and commercial services, including plumbing repair, HVAC installation and maintenance, and more.

Business Profile

Read from the Klaus & Sons Plumbing, Heating & Air Conditioning website on Oct 23, 2026. Hover an item to see the exact wording it came from.

How Klaus & Sons Plumbing, Heating & Air Conditioning works

Licenses, certifications & awards

Licensed and InsuredLicensed Insured
CSLB LicensedLicensed

Ownership (as declared by the business)

Family-owned

About the website

Website quality (AI-assessed): 8/10 · Current copyright year 2026; Clear service and contact info

HVAC Companies near Montclair, CA

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Frequently Asked Questions about Klaus & Sons Plumbing, Heating & Air Conditioning

Technologies Used

Social Profiles

Key Decision Makers

Dan Pikschus Business Owner