What are the opening hours?

Monday 8am - 5pm Tuesday 8am - 5pm Wednesday 8am - 5pm Thursday 8am - 5pm Friday 8am - 5pm

DeMark Auto

Here at DeMark Auto we strive for reliability, great customer service, and most of all, a sense of community.

We are a family owned business founded in 1956 and upon these values we hope to make every customer count.

06/25/2026

Here is a great reminder why vehicle maintenance is important.
Dont let this be your engine, give us a call today!

208-459-3468

06/09/2026

There are so many conveniences these days that weren't always around.

One of them being deliveries.
We can get food delivered right to where we are, groceries, some materials and other things same day even.
Many companies not only have their own delivery drivers, they sub contract out local people who will drive for them.

When using your daily driver to make money , its easy to over look regular maintenance. Its easy to push that brake noise or check engine light until it becomes worse ect.

Don't forget we do FREE inspections with every maintenance visit or repair.
This gives our customers the chance to catch some of these problems beforehand and budget for them if necessary.
Impromptu repair costs can be extremely inconvenient on top of having your vehicle in the shop.

So if you think you're about due for maintenance or have any type of concern, give us a call.
Don't let minor issues turn into major repairs.

DeMark Auto
603 Hannibal st
Caldwell, ID 83605.
208-459-3468

05/28/2026

💲💲💲

Did you know we run specials almost monthly!?

Seems like everything adds up quickly these days, ask us how to gain access to our specials and discounts.

DeMark Auto
603 Hannibal St.
Caldwell, ID 83605

Call today! 📲
208-459-3468

05/16/2026

💙 𝐒𝐏𝐎𝐍𝐒𝐎𝐑 𝐒𝐏𝐎𝐓𝐋𝐈𝐆𝐇𝐓 💙

We are beyond excited to announce another amazing 𝗚𝗢𝗟𝗗 𝗦𝗣𝗢𝗡𝗦𝗢𝗥 for "𝑨 𝑫𝒂𝒏𝒄𝒆 𝑰𝒏 𝑻𝒉𝒆 𝑷𝒂𝒓𝒌"……

✨ 𝐃𝐞𝐌𝐚𝐫𝐤 𝐀𝐮𝐭𝐨 – Caldwell, Idaho & 𝐎𝐧 𝐃𝐞𝐌𝐚𝐫𝐤 𝐋𝐨𝐝𝐠𝐞 – Missouri River, Montana ✨

This is both of these companies first year being part of this incredible event, and we couldn’t be more grateful to have them join our "𝑨 𝑫𝒂𝒏𝒄𝒆 𝑰𝒏 𝑻𝒉𝒆 𝑷𝒂𝒓𝒌" 𝐅𝐚𝐦𝐢𝐥𝐲. 💙

For years, 𝘿𝙚𝙈𝙖𝙧𝙠 𝘼𝙪𝙩𝙤 has proudly served the Caldwell community with trusted auto repair and customer care built on respect, honesty, and quality service. Their team is dedicated to creating a welcoming experience for every customer while delivering reliable automotive care the community has come to count on.

Joining them in this sponsorship is 𝙊𝙣 𝘿𝙚𝙈𝙖𝙧𝙠 𝙇𝙤𝙙𝙜𝙚, a family run fly fishing lodge located along the Missouri River in Montana. Known for world class trout fishing, warm hospitality, cozy accommodations, and unforgettable outdoor experiences, the DeMark family has created a place where guests can relax, connect, and truly feel at home. 🎣✨

Together, their support helps create a fun, welcoming, and joy filled experience for everyone attending "𝑨 𝑫𝒂𝒏𝒄𝒆 𝑰𝒏 𝑻𝒉𝒆 𝑷𝒂𝒓𝒌".

Because of Gold Sponsors like 𝘿𝙚𝙈𝙖𝙧𝙠 𝘼𝙪𝙩𝙤 and 𝙊𝙣 𝘿𝙚𝙈𝙖𝙧𝙠 𝙇𝙤𝙙𝙜𝙚, we are able to continue growing this event and creating unforgettable memories for our incredible community. 💙

👏 Help us give a big THANK YOU to the DeMark family in the comments!

https://demarkauto.com/
https://www.ondemarklodge.com/

ADanceInThePark.com

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bhhssilverhawkrealty.com
Berkshire Hathaway HS Silverhawk Realty
DeMark Auto
On DeMark Lodge

03/24/2026

With this nice weather, we are staring to see a lot of Air conditioning concerns pop up on the schedule.

Don't get stuck in the heat by waiting until last minute to try and get squeezed in.

Stay cool 🥶

DeMark Auto
208-459-3468

03/05/2026

Brakes!!

One of the most crucial safety items on a vehicle. Yet they can be so over looked.

It is important to have your brake system checked regularly.
We check them every oil change here at DeMark.
You dont want to wait until you hear noise, have a major leak or the brake light comes on.

If you wait too long, this can cause damage to other components, in turn Making the potential repair cost go up.

When the brake light comes on, it is a warning that there is an issue detected within the system. This can mean low fluid, e brake issues or potential other problems.

DeMark Auto
📞2️⃣0️⃣8️⃣-4️⃣5️⃣9️⃣-3️⃣4️⃣6️⃣8️⃣

02/12/2026

This is a reminder for those who may need it...

Get your oil changed! 😅

Sometimes we over look our vehicle's maintenance.
Life is busy, we get that.

Not only are our oil change prices VERY competitive, our technicians will do a FREE digital inspection. Sent straight to your phone.

They will look over the vehicle, checking fluids, brakes, belts and other components to keep your vehicle on the road!

📞 Call us today to schedule and appointment & ask us how to get access to our promotions!!

208-459-3468

01/13/2026

Cracking and fraying are not the only way a main drive, or accessory drive belt, may show signs of wear.
Sometimes its the grooves that the pulleys ride on. This belt was WAY over due. You can see the difference in the grooves on the old vs new belt.
With our oil changes we include a FREE 25 point inspection. The goal of this inspection is to catch things like this before they become a problem.

DeMark Auto
603 Hannibal st.
Caldwell, ID 83605

208-459-3468

01/09/2026

Clogged heater cores can be caused by a number of issues. Lack of cooling system maintenance, mixing different coolants, and adding stop leak.

Many people may over look maintenance of their cooling system. The frequency varies widely between , vehicle manufacturer recommendations, and coolant manufacturer recommendations. This Typically falls between 30,000- 100,000 miles OR every 2-5 years.

It is important to know the type of coolant your specific vehicle takes. Today there is an "all makes coolant" which does cover a variety of cooling systems, But every cooling system is made up of different types of materials.
This is why there are a variety of coolants with different additives.
When you mix coolants, they can react, creating sludge, that can clog parts of the system and create corrosion.

Why not use stop leak additives ?
While stop leak additives may create a temporary fix, they can create bigger problems. Mainly clogging up parts of the cooling system.
We NEVER recomend using these products. A minor coolant leak repair, could turn into more major repairs by doing this.

*Pictured is a clogged heater core one our of technicians cut open.

Address

603 Hannibal Street
Caldwell, ID
83605

Opening Hours

Monday	8am - 5pm
Tuesday	8am - 5pm
Wednesday	8am - 5pm
Thursday	8am - 5pm
Friday	8am - 5pm

Telephone

(208) 459-3468

Website

http://demarkauto.com/

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