Klaus & Sons Plumbing Heating & Air-Conditioning

Klaus & Sons Plumbing Heating & Air-Conditioning Your local plumbing, heating and air-conditioning experts.

Klaus & Sons are your local licensed and insured (CSLB #320990) family-owned plumbing, heating and air-conditioning experts. We provide local residential and commercial HVAC and plumbing services 24 hours a day by expert, trained technicians.

09/04/2026

Honest pricing should not be hard to find. Here is what one recent customer told us:

"I called around to five different places. Most either would not give me a quote or wanted to charge me $1,400 for hydro cleaning. Klaus and Sons gave me a quote over the phone for $475. The technician came out and fixed it for $189. No hydro cleaning needed. I will always give my business to competent and honest workers. Thank you."

This is how we do it. Straight answers over the phone. No upselling work you do not need. A fair price for the job in front of us.

When we can fix it for less, we tell you. That is what earns the kind of loyalty we are grateful for every day.

Family owned since 1973. Licensed and fully insured. Every job backed by our 100% satisfaction guarantee.

Call 909-655-4636 to schedule your service.

08/28/2026

Nothing makes our day like hearing our team showed up when it mattered most.

"I called Klaus and Sons and they were out within the hour. Fernando was great, and so was his apprentice. They got my air conditioning up and running again. Very thankful to them."

When your AC quits in the Inland Empire heat, you should not have to wait days for relief. Fernando and the rest of our crew are ready to show up fast, find the problem, and get your home comfortable again.

Family owned since 1973. Licensed and fully insured. Every job backed by our 100% satisfaction guarantee.

Call 909-655-4636 to schedule your service.
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08/14/2026

A full plumbing inspection catches the small stuff before it becomes the expensive stuff. Slow leaks, aging fittings, pressure problems... we find them early so you can rest easy knowing your home is protected.

Family-owned and serving the Inland Empire since 1973. Licensed and fully insured and backed by our 100% satisfaction guarantee.

Call Klaus & Sons today: 909-655-4636


08/07/2026

🔥 Your comfort shouldn't gamble on a summer meltdown.
Get serviced now and skip the sweaty scramble later. 🔥

Family-owned & serving the Inland Empire for 50+ years
Licensed & fully insured
100% satisfaction guarantee

Beat the heat before it beats you — our team keeps your home cool and comfortable all season long.

📞 Call today: 909-655-4636

08/01/2026

☀️ Your AC picks the hottest day to quit. Every. Single. Time.

Don't wait for the breakdown — beat the Inland Empire heat before it beats you.
- Family-owned & trusted for 50+ years
- Licensed & fully insured
- 100% satisfaction guarantee

Serving Montclair, Chino Hills, Ontario, Upland & Rancho Cucamonga 🏡

📞 Call now: 909-655-4636

07/24/2026

No one likes a broken AC in July 🥵
Get ahead of it.

Klaus & Sons will inspect your system before it lets you down.

✅ Family-owned & trusted for 50+ years
✅ Licensed & fully insured
✅ 100% satisfaction guaranteed

Don't wait for the breakdown — book your AC inspection today.

📞 909-655-4636
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07/17/2026

Don't get caught sweating this summer 😓
Your AC always seems to quit at the worst possible moment — usually the hottest day of the year. 🔥
Beat the breakdown. Call Klaus & Sons to have your HVAC inspected before it leaves you stranded in the heat.

✅ Family-owned & trusted for 50+ years
✅ Fully licensed
✅ 100% satisfaction guaranteed

📞 Call today: 909-655-4636

07/02/2026

Montclair's go-to HVAC and Plumbing company.

Family-owned and serving the Inland Empire since 1973 — that's over 50 years of keeping local homes comfortable and running smoothly.

Fully licensed, insured, and backed by a 100% satisfaction guarantee. Whether it's a broken AC in the middle of summer or a plumbing issue that can't wait, our trained technicians show up on time and get it done right the first time.

Call Klaus & Sons today to schedule your appointment!
909-655-4636

06/25/2026

Montclair summers don't play around ☀️ Whether your system needs a repair, a tune-up, or a full replacement, Klaus & Sons keeps Montclair homes cool and comfortable all season long.

Don't sweat it out — call Klaus & Sons today to schedule your appointment!

📞 909-655-4636

06/19/2026

It’s getting hot outside 🥵🥵🥵
Don’t wait to have your AC looked at!
Call Klaus & Sons today to schedule your appointment!
909-655-4636

Address

5623 Arrow Highway
Montclair, CA
91786

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