Soneff's Master Garage

Business Details

50+ Years

experience

Classic & Muscle Car Restoration & Sales in Denver

Established in 1965, Soneff's Master Garage has built a legacy as a family-owned business dedicated to classic and muscle car enthusiasts. Our team combines decades of hands-on experience with a passion for automotive history, offering specialized services from mechanical repairs to full restorations. Located in downtown Denver, we pride ourselves on maintaining the integrity of every vehicle while ensuring it remains road-ready and enjoyable.

Our commitment to quality extends to auto body and paint work, custom modifications, and climate-controlled storage solutions tailored to vintage vehicle owners. With a philosophy rooted in preserving automotive heritage, we treat every car as a functional masterpiece meant to be driven and appreciated, not stored away.

Services

Muscle Car Repair Vintage Cars For Sale Vehicle Storage Body & Paint Custom Fabrication Engine Swaps Auto Restoration Vehicle Inspection Custom Exhaust Consignment Program

Details

Year established: 1965

Highlights and features

Family-owned since 1965 with expertise in classic car restoration.
Climate-controlled storage with 24/7 video surveillance.
Specialists in engine swaps, bodywork, and custom modifications.
Transparent pricing for consignment and repair services.
Proven track record voted Best Muscle Car Dealer by Westword Magazine.

What people say

Fantastic work Friendly and responsive Quality and timely Excellent pricing Recommend highly

Website

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Services

Muscle Car Repair

Our team specializes in restoring and repairing muscle cars with expert mechanical and body work. We handle engine rebuilds, custom exhaust systems, and vintage car maintenance. Our services ensure your classic vehicle performs optimally while maintaining its original charm and value.

Vintage Cars For Sale

Soneff's offers a curated selection of rare and well-maintained vintage vehicles for purchase. From muscle cars to retro trucks, every listing undergoes thorough inspection to guarantee authenticity and roadworthiness. Our inventory caters to collectors and enthusiasts seeking quality classics.

Vehicle Storage

The Vault at Soneff's provides secure, climate-controlled storage for vintage vehicles. Maintaining optimal temperature and humidity levels, our facility prevents deterioration of rubber, plastic, and wood components. Surveillance and restricted access ensure your car's safety and preservation.

Custom Fabrication

We offer bespoke fabrication services including frame repairs, roll bars, and body panel replacements. Our team handles engine swaps, suspension upgrades, and off-road conversions to meet specific client goals while preserving structural integrity and aesthetics.

Auto Body & Paint

Our auto body specialists perform complete paint restoration and body repairs for classic vehicles. From rust removal to precision paint matching, we restore original finishes while addressing structural issues. Off-site booth capabilities ensure flawless results for show-worthy cars.

People

Jay Soneff

Owner

Jay Soneff, owner since 1965, grew up immersed in automotive culture with a focus on muscle cars. Starting at age 16, he mastered engine rebuilding under industry legends. His leadership earned Soneff's recognition as Best Muscle Car Dealer in the 90s, emphasizing cars as functional art meant to be driven.

Questions

What types of vehicles do you specialize in?

We specialize in classic American muscle cars and vintage automobiles from the 1960s–1990s, including brands like Plymouth, Ford, Chevrolet, and Dodge.

Can you help sell my classic car?

Yes, our consignment program offers flexible pricing options, including a 10% selling fee or negotiated rates, with nationwide exposure.

Do you provide warranties on repairs?

We guarantee our workmanship with warranties on mechanical and bodywork repairs, ensuring client confidence in every restoration or service.

Are financing options available?

Financing is available for vehicle purchases through third-party providers. Contact us for details on qualifying programs.

What storage packages do you offer?

We provide three storage tiers ranging from $450–$750/month, including climate control, 24/7 surveillance, and optional vehicle preparation services.

How do I schedule an inspection?

Reviews (6)

Write a Review

Shannon Zachry

Nov 05, 2021 Report

Ervin and Jay were wonderful to work with and always kept me posted on the progress of my 1969 Firebird. The work was completed in a timely manner and reasonably priced. I would highly recommend this business to anyone in the Denver area. I would also like to add the professionalism of the front desk receptionist (I forgot her name). She was always very sweet and provided great customer service.

Amber Dawn Riggs

Apr 09, 2021 Report

I want to thank you from the bottom of my heart!!! I roller skated in today behind a wheelchair desperate for help. I was greeted and taken care of right away. I couldn’t get a nut loose to tighten the chain on my bosses wheelchair. Not only did he loosen the nut, but he tightened the chain and actually listened to me when I spoke to him. Usually I… get treated like a stupid girl. While the guy was getting a tool, another worker asked if we had been taken care of. Very impressed w his confidence and knowledge and that he just did what needed to be done for us. With a smile too. I give

Matt Harris

Mar 20, 2021 Report

Bought a 1968 Barracuda from Jay. Not only was Jay honest about the car i made a great Friend. Jay is very Knowledgeable about classic cars.
Jay was kind enough to clear his very busy schedule to give us a first class tour of his operation. Met a lot of his staff during the tour. If you love cars like I do Jay has lots . I thought I was in a candy store. When we were on the tour we seen many cars in various stages of restoration. I was impressed by the quality of work they do. I am planning another trip to see Jay and his cars.
i have had lots of complements on the car i bought.
Matt

JustinBClifff

Feb 04, 2021 Report

Have a 1969 Corvette with an electrical problem that caused intermittent non-starting of the car. Took a few hours to trouble shoot and repair, but Soneff's solved the issue. Hats off to Irvin for this work. Also, Jason was able to remove a scratch on my Audi within 30 minutes. Did not expect him to be able to work on the scratch when I just stopped by earlier this week, but he fit it in. Very professional and courteous crew at Soneffs. Very customer-focused.

Matt Merryweather

Nov 06, 2020 Report

Where do I start with these guys!! I purchased a 1974 International Scout from a vintage auto place in Denver but live in Kentucky. Soneff's was recommended to me for an inspection of the vehicle and repairs. Jay went out and looked at it and then rushed it to his garage as I was flying out to drive it before shipping it home to KY. Once is was back at Soneff's is were the best experience I have ever had with a Garage started!! Dave was the head mechanic that took over, he took the time to advise me the things that needed done, the things that could be fixed later and always stayed in contact with

Ryan Watson

Oct 07, 2020 Report

#1 car mechanic I have ever been to! 5-star customer service with extremely high quality repair work at a reasonable price. They have worked on my Ford Focus a couple of times to work on my exhaust and suspension system as well as basic maintenance. After every visit they step through the repairs that were made and they always put in better parts than were originally in the car. Dave and his team are the experts when it comes to automotive repair and I appreciate their honest communication!